Effort to make portal resilient

Issue-ID: PORTAL-210

Includes music library that contatins session management

Change-Id: Icacab904e1f948068348fcc19cd77965cb5b446e
Signed-off-by: Lo, WEI-TING(wl849v) <wl849v@att.com>

17 files changed, 2024 insertions, 0 deletions

diff --git a/ecomp-sdk/epsdk-music/README.md b/ecomp-sdk/epsdk-music/README.md
new file mode 100644
index 00000000..8be313f2
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/README.md
@@ -0,0 +1,14 @@
+# ONAP Portal SDK Core
+
+## Overview
+
+This is the Maven project for the ONAP Portal SDK Music library,
+which is distributed as epsdk-music-N.N.N.jar. This library 
+requires Spring, and provides session management feature, including session replication across cassandra nodes and portal resilience.
+
+## Release Notes
+
+### ONAP Distributions
+
+Version 2.2.0
+- PORTAL-210  Effort to make portal resilient
\ No newline at end of file
diff --git a/ecomp-sdk/epsdk-music/pom.xml b/ecomp-sdk/epsdk-music/pom.xml
new file mode 100644
index 00000000..de623670
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/pom.xml
@@ -0,0 +1,190 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+<!-- 	<parent>
+		<groupId>org.onap.portal.sdk</groupId>
+		<artifactId>epsdk-project</artifactId>
+		<version>2.2.0-SNAPSHOT</version>
+	</parent>
+ -->
+	<groupId>org.onap.portal.sdk</groupId>
+	<artifactId>epsdk-music</artifactId>
+	<version>2.2.0-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>ONAP Portal SDK Music</name>
+	<url>http://maven.apache.org</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<springframework.version>4.2.0.RELEASE</springframework.version>
+		<jersey1.version>1.19.4</jersey1.version>
+		<jaxrs.version>2.0.1</jaxrs.version>
+		<cassandra.version>3.0.0</cassandra.version>
+		<zookeeper.version>3.4.6</zookeeper.version>
+	</properties>
+	<repositories>
+		<repository>
+			<id>resources</id>
+			<url>file:${project.basedir}/src/main/resources</url>
+		</repository>
+	</repositories>
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>3.8.1</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.att.eelf</groupId>
+			<artifactId>eelf-core</artifactId>
+			<version>1.0.0</version>
+		</dependency>
+		<!-- Spring -->
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-core</artifactId>
+			<version>${springframework.version}</version>
+			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-web</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-webmvc</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-tx</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-context-support</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-orm</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-test</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-aop</artifactId>
+			<version>${springframework.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+			<version>1.3.0.RELEASE</version>
+			<exclusions>
+				<exclusion>
+					<groupId>org.slf4j</groupId>
+					<artifactId>log4j-over-slf4j</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>ch.qos.logback</groupId>
+					<artifactId>logback-classic</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>com.att.eelf</groupId>
+			<artifactId>eelf-core</artifactId>
+			<version>1.0.0</version>
+		</dependency>
+
+		<!-- Music -->
+		<dependency>
+			<groupId>org.onap.music</groupId>
+			<artifactId>core</artifactId>
+			<version>2.4.4</version>
+		</dependency>  
+		<dependency>
+			<groupId>org.onap.music</groupId>
+			<artifactId>dependency</artifactId>
+			<version>2.4.4</version>
+		</dependency>  
+
+		<!-- Mapper -->
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-annotations</artifactId>
+			<version>2.6.3</version>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-core</artifactId>
+			<version>2.6.3</version>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>2.6.3</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.session</groupId>
+			<artifactId>spring-session-jdbc</artifactId>
+			<version>2.0.1.RELEASE</version>
+		</dependency>
+		<dependency>
+			<groupId>org.json</groupId>
+			<artifactId>json</artifactId>
+			<version>20160212</version>
+		</dependency>
+	</dependencies>
+	<profiles>
+		<!-- disable doclint, a new feature in Java 8, when generating javadoc -->
+		<profile>
+			<id>doclint-java8-disable</id>
+			<activation>
+				<jdk>[1.8,)</jdk>
+			</activation>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-javadoc-plugin</artifactId>
+						<version>2.10.4</version>
+						<configuration>
+							<additionalparam>-Xdoclint:none</additionalparam>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+	</profiles>
+	<build>
+		<!-- The war file name carries no version number -->
+		<finalName>epsdk-music</finalName>
+
+		<plugins>
+			<!-- Compile to Java 1.8 class output format -->
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.1</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+</project>
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/EnableMuscicHttpSession.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/EnableMuscicHttpSession.java
new file mode 100644
index 00000000..fcdb15fe
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/EnableMuscicHttpSession.java
@@ -0,0 +1,56 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.conf;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+@Documented
+@Configuration
+@Import(MusicHttpSessionConfiguration.class)
+public @interface EnableMuscicHttpSession {
+
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicHttpSessionConfiguration.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicHttpSessionConfiguration.java
new file mode 100644
index 00000000..bdf952bb
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicHttpSessionConfiguration.java
@@ -0,0 +1,54 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.conf;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.session.config.annotation.web.http.EnableSpringHttpSession;
+
+@EnableSpringHttpSession
+@Configuration
+public class MusicHttpSessionConfiguration {
+
+
+	@Bean
+	public MusicSessionRepository sessionRepository() {
+		return new MusicSessionRepository(new MusicSessionRepositoryHandler());
+	}
+}
+
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSession.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSession.java
new file mode 100644
index 00000000..dfaf5dc7
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSession.java
@@ -0,0 +1,382 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+/*
+ * Copyright 2014-2017 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.portalapp.music.conf;
+
+import java.io.Serializable;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.music.exceptions.MusicLockingException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.portalapp.music.service.MusicService;
+import org.onap.portalapp.music.util.MusicProperties;
+import org.onap.portalapp.music.util.MusicUtil;
+import org.springframework.session.MapSession;
+import org.springframework.session.Session;
+
+/**
+ * <p>
+ * A {@link Session} implementation that is backed by a {@link java.util.Map}. The
+ * defaults for the properties are:
+ * </p>
+ * <ul>
+ * <li>id - a secure random generated id</li>
+ * <li>creationTime - the moment the {@link MapSession} was instantiated</li>
+ * <li>lastAccessedTime - the moment the {@link MapSession} was instantiated</li>
+ * <li>maxInactiveInterval - 30 minutes</li>
+ * </ul>
+ *
+ * <p>
+ * This implementation has no synchronization, so it is best to use the copy constructor
+ * when working on multiple threads.
+ * </p>
+ *
+ * @author SRIDHAR REDDY M
+ * @since 1.0
+ */
+public final class MusicSession implements Session, Serializable  {
+	/**
+	 * Default {@link #setMaxInactiveInterval(Duration)} (30 minutes).
+	 */
+	public static final int DEFAULT_MAX_INACTIVE_INTERVAL_SECONDS = MusicProperties.getProperty(MusicProperties.SESSION_MAX_INACTIVE_INTERVAL_SECONDS)==null ? 1800 :Integer.valueOf(MusicProperties.getProperty(MusicProperties.SESSION_MAX_INACTIVE_INTERVAL_SECONDS)) ;
+	private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicSession.class);
+
+	private String id;
+	private String originalId;
+	private Map<String, Object> sessionAttrs = new HashMap<>();
+	private Instant creationTime = Instant.now();
+	private Instant lastAccessedTime = this.creationTime;
+	private Map<String,Integer> cachingMap = new HashMap<>();
+	private boolean musicCache = MusicUtil.isCached();
+	/**
+	 * Defaults to 30 minutes.
+	 */
+	private Duration maxInactiveInterval = Duration.ofSeconds(DEFAULT_MAX_INACTIVE_INTERVAL_SECONDS);
+
+	/**
+	 * Creates a new instance with a secure randomly generated identifier.
+	 */
+	public MusicSession() {
+		this(generateId());
+	}
+
+
+	/**
+	 * Creates a new instance with the specified id. This is preferred to the default
+	 * constructor when the id is known to prevent unnecessary consumption on entropy
+	 * which can be slow.
+	 *
+	 * @param id the identifier to use
+	 */
+	public MusicSession(String id) {
+		this.id = id;
+		this.originalId = id;
+	}
+
+	/**
+	 * Creates a new instance from the provided {@link Session}.
+	 *
+	 * @param session the {@link Session} to initialize this {@link Session} with. Cannot
+	 * be null.
+	 */
+	public MusicSession(Session session) {
+		if (session == null) {
+			throw new IllegalArgumentException("session cannot be null");
+		}
+		this.id = session.getId();
+		this.originalId = this.id;
+		this.sessionAttrs = new HashMap<>(
+				session.getAttributeNames().size());
+		for (String attrName : session.getAttributeNames()) {
+			Object attrValue = session.getAttribute(attrName);
+			if (attrValue != null) {
+				this.sessionAttrs.put(attrName, attrValue);
+			}
+		}
+		this.creationTime = session.getCreationTime();
+		this.lastAccessedTime = session.getLastAccessedTime();
+		this.maxInactiveInterval = session.getMaxInactiveInterval();
+	}
+
+	@Override
+	public void setLastAccessedTime(Instant lastAccessedTime) {
+		logger.debug(EELFLoggerDelegate.debugLogger, "setLastAccessedTime: start");
+		try{
+			MusicService.setAttribute(MusicProperties.LAST_ACCESS_TIME, this.lastAccessedTime, this.id);
+		}catch(Exception e){
+			logger.error(EELFLoggerDelegate.errorLogger, "setLastAccessedTime failed with id " + this.id, e);
+		}
+		this.lastAccessedTime = lastAccessedTime;
+	}
+
+	@Override
+	public Instant getCreationTime() {
+		Instant creationTime = null;
+		logger.debug(EELFLoggerDelegate.debugLogger, "getCreationTime: start");
+		if(musicCache)
+			creationTime = this.creationTime;
+		else{
+			try {
+				String creationTimeStr = MusicService.getAttribute( MusicProperties.CREATION_TIME, this.id);
+				if(creationTimeStr!=null)
+					creationTime = Instant.parse(creationTimeStr); 
+				else
+					creationTime = Instant.now();
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger, "getCreationTime failed with id " + this.id, e);
+			}
+		}
+		return creationTime;
+	}
+
+	@Override
+	public String getId() {
+		return this.id;
+	}
+
+	String getOriginalId() {
+		return this.originalId;
+	}
+
+	void setOriginalId(String originalId) {
+		this.originalId = originalId;
+	}
+
+	@Override
+	public String changeSessionId() {
+		String changedId = generateId();
+		setId(changedId);
+		return changedId;
+	}
+
+	@Override
+	public Instant getLastAccessedTime() {
+		Instant lastAccessedTime = null;
+		logger.debug(EELFLoggerDelegate.debugLogger, "getLastAccessedTime: start");
+		if(musicCache)
+			lastAccessedTime = this.lastAccessedTime;
+		else{
+			try {
+				String lastAccessedTimeStr = MusicService.getAttribute( MusicProperties.LAST_ACCESS_TIME, this.id);
+				if(lastAccessedTimeStr!=null)
+					lastAccessedTime = Instant.parse(lastAccessedTimeStr); 
+				else
+					lastAccessedTime = this.creationTime;
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger, "getLastAccessedTime failed with id "+this.id, e);
+			}
+		}
+		return lastAccessedTime;
+	}
+
+	@Override
+	public void setMaxInactiveInterval(Duration interval) {
+		logger.debug(EELFLoggerDelegate.debugLogger, "setMaxInactiveInterval: start");
+		this.maxInactiveInterval = interval;
+		try{
+			MusicService.setAttribute(MusicProperties.MAX_INACTIVE_INTERVAL, this.maxInactiveInterval, this.id);
+		}catch(Exception e){
+			logger.error(EELFLoggerDelegate.errorLogger, "setMaxInactiveInterval failed with id " + this.id, e);
+		}
+	}
+
+	@Override
+	public Duration getMaxInactiveInterval() {
+		logger.debug(EELFLoggerDelegate.debugLogger, "getMaxInactiveInterval: start");
+		Duration maxInactiveInterval = null;
+		if(musicCache)
+			maxInactiveInterval = this.maxInactiveInterval;
+		else{	
+			try {
+				String maxInactiveIntervalStr = MusicService.getAttribute( MusicProperties.MAX_INACTIVE_INTERVAL, this.id);
+				if(maxInactiveIntervalStr!=null)
+					maxInactiveInterval = Duration.parse(maxInactiveIntervalStr);
+				else
+					maxInactiveInterval = Duration.ofSeconds(DEFAULT_MAX_INACTIVE_INTERVAL_SECONDS);
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger, "getMaxInactiveInterval failed with id " + this.id, e);
+			}
+		}
+		return maxInactiveInterval==null? Duration.ofSeconds(DEFAULT_MAX_INACTIVE_INTERVAL_SECONDS):maxInactiveInterval;
+	}
+
+	@Override
+	public boolean isExpired() {
+		return isExpired(Instant.now());
+	}
+
+	boolean isExpired(Instant now) {
+		logger.debug(EELFLoggerDelegate.debugLogger, "isExpired: start");
+		boolean isExpired = false;
+		Duration maxInactiveInterval = null;
+		Instant lastAccessedTime = null;
+		try {
+			if(musicCache){
+				maxInactiveInterval = this.maxInactiveInterval;
+				lastAccessedTime = this.lastAccessedTime;
+			}else{
+				maxInactiveInterval = getMaxInactiveInterval();
+				lastAccessedTime = getLastAccessedTime();
+			}
+			if (maxInactiveInterval.isNegative()) {
+				return false;
+			}
+			isExpired = now.minus(maxInactiveInterval).compareTo(lastAccessedTime) >= 0;
+			if(isExpired){
+				MusicService.removeSession(this.id);
+			}
+		} catch (MusicLockingException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "isExpired locking failed with id:" + id, e);
+		} catch (MusicServiceException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "isExpired failed with id:" + id, e);
+		}
+		return isExpired;
+	}
+
+	@Override
+	@SuppressWarnings("unchecked")
+	public <T> T getAttribute(String attributeName) {
+		if(musicCache){
+			return (T) this.sessionAttrs.get(attributeName);
+		}else{
+			try {
+				return MusicService.getAttribute( attributeName, this.id);
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger, " getAttribute failed with id:" + this.id + " attribute name "+ attributeName , e);
+				return null;
+			}	
+		}
+
+	}
+
+	@Override
+	public Set<String> getAttributeNames() {
+		return this.sessionAttrs.keySet();
+	}
+
+	@Override
+	public void setAttribute(String attributeName, Object attributeValue) {
+		if (attributeValue == null) {
+			removeAttribute(attributeName);
+		}else {
+			this.sessionAttrs.put(attributeName, attributeValue);
+			try{
+				MusicService.setAttribute(attributeName , attributeValue, this.id);
+			}catch(Exception e){
+				logger.error(EELFLoggerDelegate.errorLogger, " setAttribute failed id:" + this.id + " attribute name "+ attributeName , e);
+			}
+		}
+	}
+
+	@Override
+	public void removeAttribute(String attributeName) {
+		this.sessionAttrs.remove(attributeName);
+		try{
+			MusicService.removeAttribute(attributeName, this.id);
+		}catch(MusicLockingException e){
+			logger.error(EELFLoggerDelegate.errorLogger, " removeAttribute locking failed id:" + this.id + " attribute name "+ attributeName , e);
+		}catch(MusicServiceException e){
+			logger.error(EELFLoggerDelegate.errorLogger, " removeAttribute failed id:" + this.id + " attribute name "+ attributeName , e);
+		}
+		
+	}
+
+	/**
+	 * Sets the time that this {@link Session} was created. The default is when the
+	 * {@link Session} was instantiated.
+	 * @param creationTime the time that this {@link Session} was created.
+	 */
+	public void setCreationTime(Instant creationTime) {
+		//MusicService musicService = new MusicService();
+		this.creationTime = creationTime;
+		try{
+			MusicService.setAttribute(MusicProperties.CREATION_TIME, creationTime, this.id);
+		}catch(Exception e){
+			logger.error(EELFLoggerDelegate.errorLogger, " setCreationTime failed id:" + this.id + " creationTime  "+ creationTime , e);
+		}
+
+	}
+
+	/**
+	 * Sets the identifier for this {@link Session}. The id should be a secure random
+	 * generated value to prevent malicious users from guessing this value. The default is
+	 * a secure random generated identifier.
+	 *
+	 * @param id the identifier for this session.
+	 */
+	public void setId(String id) {
+		this.id = id;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		return obj instanceof Session && this.id.equals(((Session) obj).getId());
+	}
+
+	@Override
+	public int hashCode() {
+		return this.id.hashCode();
+	}
+
+	private static String generateId() {
+		return UUID.randomUUID().toString();
+	}
+
+	private static final long serialVersionUID = 7160779239673823561L;
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionConfig.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionConfig.java
new file mode 100644
index 00000000..617ac75b
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionConfig.java
@@ -0,0 +1,55 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.conf;
+
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Configures Spring features in the ONAP Portal SDK including request
+ * interceptors and view resolvers. Application should subclass and override
+ * methods as needed.
+ */
+
+
+
+@Configuration
+@EnableMuscicHttpSession
+public class MusicSessionConfig {
+	
+}
+
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepository.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepository.java
new file mode 100644
index 00000000..37a7ae7e
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepository.java
@@ -0,0 +1,135 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.conf;
+
+import java.time.Duration;
+import java.util.Map;
+
+import org.springframework.session.Session;
+import org.springframework.session.SessionRepository;
+import org.springframework.session.events.SessionDeletedEvent;
+import org.springframework.session.events.SessionExpiredEvent;
+
+
+/**
+ * A {@link SessionRepository} backed by a {@link java.util.Map} and that uses a
+ * {@link MapSession}. The injected {@link java.util.Map} can be backed by a
+ * distributed NoSQL store like Hazelcast, for instance. Note that the supplied
+ * map itself is responsible for purging the expired sessions.
+ *
+ * <p>
+ * The implementation does NOT support firing {@link SessionDeletedEvent} or
+ * {@link SessionExpiredEvent}.
+ * </p>
+ *
+ * @author SRIDHAR REDDY M
+ * @since 1.0
+ */
+public class MusicSessionRepository  implements SessionRepository<MusicSession> {
+
+	/**
+	 * If non-null, this value is used to override
+	 * {@link Session#setMaxInactiveInterval(Duration)}.
+	 */
+	private Integer defaultMaxInactiveInterval;
+
+	
+	private final MusicSessionRepositoryHandler sessionHandler;
+
+	/**
+	 * Creates a new instance backed by the provided {@link java.util.Map}. This
+	 * allows injecting a distributed {@link java.util.Map}.
+	 *
+	 * @param sessions
+	 *            the {@link java.util.Map} to use. Cannot be null.
+	 */
+	public MusicSessionRepository(MusicSessionRepositoryHandler handler) {
+		this.sessionHandler = handler;
+	}
+
+	/**
+	 * If non-null, this value is used to override
+	 * {@link Session#setMaxInactiveInterval(Duration)}.
+	 * 
+	 * @param defaultMaxInactiveInterval
+	 *            the number of seconds that the {@link Session} should be kept
+	 *            alive between client requests.
+	 */
+	public void setDefaultMaxInactiveInterval(int defaultMaxInactiveInterval) {
+		this.defaultMaxInactiveInterval = defaultMaxInactiveInterval;
+	}
+
+	@Override
+	public void save(MusicSession session) {
+		if (!session.getId().equals(session.getOriginalId())) {
+			this.sessionHandler.remove(session.getOriginalId());
+			session.setOriginalId(session.getId());
+		}
+		// this.sessionHandler.put(session.getId(), new MusicSession(session));
+		this.sessionHandler.put(session.getId(), new MusicSession(session));
+	}
+
+	@Override
+	public MusicSession findById(String id) {
+		Session saved = this.sessionHandler.get(id);
+		if (saved == null) {
+			return null;
+		}
+		if (saved.isExpired()) {
+			deleteById(saved.getId());
+			return null;
+		}
+		//return sessionHandler.session(saved);
+		return new MusicSession(saved);
+	}
+
+	@Override
+	public void deleteById(String id) {
+		this.sessionHandler.remove(id);
+	}
+
+	@Override
+	public MusicSession createSession() {
+		MusicSession result = new MusicSession();
+		if (this.defaultMaxInactiveInterval != null) {
+			result.setMaxInactiveInterval(Duration.ofSeconds(this.defaultMaxInactiveInterval));
+		}
+		return result;
+	}
+
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepositoryHandler.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepositoryHandler.java
new file mode 100644
index 00000000..1b0dff94
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/conf/MusicSessionRepositoryHandler.java
@@ -0,0 +1,56 @@
+package org.onap.portalapp.music.conf;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.music.exceptions.MusicLockingException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.portalapp.music.service.MusicService;
+import org.onap.portalapp.music.util.MusicUtil;
+import org.springframework.session.Session;
+
+public class MusicSessionRepositoryHandler {
+	
+	private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicSessionRepositoryHandler.class);
+	private final Map<String, Session> sessions = new ConcurrentHashMap<>();
+	private boolean musicCache = MusicUtil.isCached();
+	
+	
+	public Session get(String id) {
+		if(!musicCache){
+			try {
+				Session session = MusicService.getMetaAttribute(id);
+				return session;
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger, "get failed with id " + id, e);
+			}
+		}
+		return this.sessions.get(id);
+	}
+
+
+
+	public void remove(String id) {
+		 sessions.remove(id);
+		 try {
+			MusicService.removeSession(id);
+		} catch (MusicLockingException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "removeSession locking failed with id " + id, e);
+		} catch (MusicServiceException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "removeSession failed with id " + id, e);
+		}
+	}
+
+
+
+	public void put(String id, MusicSession musicSession) {
+		sessions.put(id, musicSession);
+		try {
+			MusicService.setMetaAttribute(musicSession);
+		} catch (Exception e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "setMetaAttribute failed with id " + id, e);
+		}
+	}
+
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestResponse.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestResponse.java
new file mode 100644
index 00000000..d01b0105
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestResponse.java
@@ -0,0 +1,119 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP 
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.model;
+
+public class RestResponse<T> {
+	
+	private RestStatusEnum status;
+	private String message;
+	
+	private T response;
+	
+	public RestResponse(){};
+	
+	public RestResponse(RestStatusEnum status, String message, T response){
+		this.status = status;
+		this.message = message;
+		this.response = response;
+	}
+
+	public RestStatusEnum getStatus() {
+		return status;
+	}
+
+	public void setStatus(RestStatusEnum status) {
+		this.status = status;
+	}
+
+	public String getMessage() {
+		return message;
+	}
+
+	public void setMessage(String message) {
+		this.message = message;
+	}
+
+	public T getResponse() {
+		return response;
+	}
+
+	public void setResponse(T response) {
+		this.response = response;
+	}
+
+	@Override
+	public String toString() {
+		return "RestResponse [status=" + status + ", message=" + message + ", response=" + response + "]";
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + ((message == null) ? 0 : message.hashCode());
+		result = prime * result + ((response == null) ? 0 : response.hashCode());
+		result = prime * result + ((status == null) ? 0 : status.hashCode());
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		RestResponse other = (RestResponse) obj;
+		if (message == null) {
+			if (other.message != null)
+				return false;
+		} else if (!message.equals(other.message))
+			return false;
+		if (response == null) {
+			if (other.response != null)
+				return false;
+		} else if (!response.equals(other.response))
+			return false;
+		if (status != other.status)
+			return false;
+		return true;
+	};	
+	
+	
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestStatusEnum.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestStatusEnum.java
new file mode 100644
index 00000000..61e477c3
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/model/RestStatusEnum.java
@@ -0,0 +1,54 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP Portal
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.portalapp.music.model;
+
+public enum RestStatusEnum{
+	OK("ok"),
+	WARN("WARNING"),
+	ERROR("error");
+	
+	private String value;
+	private RestStatusEnum(String value){
+		this.value = value;
+	}
+	
+	@Override
+    public String toString() {
+        return value;
+    }
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/service/MusicService.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/service/MusicService.java
new file mode 100644
index 00000000..0ff3cd2a
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/service/MusicService.java
@@ -0,0 +1,543 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+
+package org.onap.portalapp.music.service;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.music.exceptions.MusicLockingException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicCore;
+import org.onap.music.main.ReturnType;
+import org.onap.portalapp.music.conf.MusicSession;
+import org.onap.portalapp.music.model.RestResponse;
+import org.onap.portalapp.music.model.RestStatusEnum;
+import org.onap.portalapp.music.util.MusicProperties;
+import org.onap.portalapp.music.util.MusicUtil;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.session.Session;
+import org.springframework.web.client.RestTemplate;
+
+import com.datastax.driver.core.ResultSet;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class MusicService {
+	static RestTemplate template = new RestTemplate();
+	private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicService.class);
+
+	private static boolean isAtomicPut = MusicUtil.isAtomicPut();
+	private static boolean isAtomicGet = MusicUtil.isAtomicGet();
+	private static String musicKeySpace = MusicProperties.getProperty(MusicProperties.MUSIC_SESSION_KEYSPACE);
+	private static String musicMetaTable = MusicProperties.getProperty(MusicProperties.MUSIC_SESSION_META_TABLES);
+	private static String musicAttrTable = MusicProperties.getProperty(MusicProperties.MUSIC_SESSION_ATTR_TABLES);
+
+	/**
+	 * Store session attribute name and values into Cassandra via Music
+	 * 
+	 * @param attributeName
+	 * @param value
+	 * @param sessionId
+	 * @return ReturnType that includes required body information for Music api
+	 * @throws Exception
+	 */
+	public static ReturnType setAttribute(String attributeName, Object value, String sessionId) throws Exception {
+		logger.debug(EELFLoggerDelegate.debugLogger, "setAttribute: start with id " + sessionId);
+		String tableName = null;
+		ReturnType result = null;
+		boolean isMeta = MusicUtil.isSessionMetaAttr(attributeName);
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("INSERT INTO ").append(musicKeySpace).append(".").append(getTableName(isMeta))
+				.append(getInsertQuery(isMeta, attributeName));
+
+		queryObject.appendQueryString(querySB.toString());
+		if (isMeta) {
+			queryObject.addValue(sessionId);
+			queryObject.addValue(String.valueOf(value));
+			tableName = musicMetaTable;
+		} else {
+			queryObject.addValue(sessionId);
+			queryObject.addValue(attributeName);
+			queryObject.addValue(MusicUtil.musicSerialize(value));
+			tableName = musicAttrTable;
+
+		}
+		if (isAtomicPut)
+			result = MusicCore.atomicPut(musicKeySpace, tableName, sessionId, queryObject, null);
+		else
+			result = MusicCore.eventualPut(queryObject);
+		logger.debug(EELFLoggerDelegate.debugLogger, "setAttribute: attributeName: " + attributeName
+				+ " with session id: " + sessionId + "result:" + result.getMessage());
+		return result;
+	}
+
+	/**
+	 * Store session meta data values into Cassandra via Music
+	 * 
+	 * @param session
+	 * @return ReturnType that includes required body information for Music api
+	 * @throws Exception
+	 */
+	public static ReturnType setMetaAttribute(Session session) throws Exception {
+		logger.debug(EELFLoggerDelegate.debugLogger, "setMetaAttribute: start with session id: " + session.getId());
+		ReturnType result = null;
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("INSERT INTO ").append(musicKeySpace).append(".").append(musicMetaTable).append("(")
+				.append(MusicProperties.PRIMARY_ID).append(",").append(MusicProperties.CREATION_TIME).append(",")
+				.append(MusicProperties.LAST_ACCESS_TIME).append(",").append(MusicProperties.MAX_INACTIVE_INTERVAL)
+				.append(",").append(MusicProperties.SESSION_ID).append(") VALUES (?,?,?,?,?);");
+
+		queryObject.appendQueryString(querySB.toString());
+		queryObject.addValue(session.getId());
+		queryObject.addValue(String.valueOf(session.getCreationTime()));
+		queryObject.addValue(String.valueOf(session.getLastAccessedTime()));
+		queryObject.addValue(String.valueOf(session.getMaxInactiveInterval()));
+		queryObject.addValue(session.getId());
+		if (isAtomicPut)
+			result = MusicCore.atomicPut(musicKeySpace, musicMetaTable, session.getId(), queryObject, null);
+		else
+			result = MusicCore.eventualPut(queryObject);
+		logger.debug(EELFLoggerDelegate.debugLogger,
+				"setMetaAttribute: with session id: " + session + "result:" + result.getMessage());
+
+		return result;
+	}
+
+	/**
+	 * Retrieve session meta data from Cassandra via Music
+	 * 
+	 * @param sessionId
+	 * @return MusicSession
+	 * @throws Exception
+	 */
+	public static MusicSession getMetaAttribute(String sessionId) throws Exception {
+		logger.debug(EELFLoggerDelegate.debugLogger, "getMetaAttribute: start with session Id: "+ sessionId);
+		ResultSet result = null;
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("SELECT * FROM ").append(musicKeySpace).append(".").append(musicMetaTable).append(" WHERE ")
+				.append(MusicProperties.PRIMARY_ID).append("=?;");
+		queryObject.appendQueryString(querySB.toString());
+		queryObject.addValue(sessionId);
+		if (isAtomicGet)
+			result = MusicCore.atomicGet(musicKeySpace, musicMetaTable, sessionId, queryObject);
+		else
+			result = MusicCore.get(queryObject);
+		logger.debug(EELFLoggerDelegate.debugLogger, "getMetaAttribute: with session id: " + sessionId);
+		return MusicUtil.parseMetaData(result.one());
+	}
+
+	/**
+	 * Get proper column names (from meta or attribute table) base on isMeta
+	 * 
+	 * @param isMeta
+	 * @param attributeName
+	 * @return String
+	 */
+	private static String getInsertQuery(boolean isMeta, String attributeName) {
+		logger.debug(EELFLoggerDelegate.debugLogger, "getInsertQuery: start inserting : " + attributeName);
+		StringBuilder querySB = new StringBuilder();
+		if (isMeta) {
+			querySB.append(" (").append(MusicProperties.PRIMARY_ID).append(",").append(attributeName)
+					.append(") VALUES (?,?);");
+		} else {
+			querySB.append(" (").append(MusicProperties.PRIMARY_ID).append(",").append(MusicProperties.ATTRIBUTE_NAME)
+					.append(",").append(MusicProperties.ATTRIBUTE_BYTES).append(") VALUES (?,?,?);");
+		}
+		return querySB.toString();
+	}
+
+	/**
+	 * Retrieve session attribute data from Cassandra via Music
+	 * 
+	 * @param attributeName
+	 * @param sessionId
+	 * @return attribute value with T type
+	 * @throws Exception
+	 */
+	public static <T> T getAttribute(String attributeName, String sessionId) throws Exception {
+		logger.debug(EELFLoggerDelegate.debugLogger, "getAttribute: start with session id: " + sessionId);
+		ResultSet result = null;
+		String tableName = null;
+		boolean isMeta = MusicUtil.isSessionMetaAttr(attributeName);
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("SELECT ").append(getColumn(attributeName, isMeta)).append(" FROM ").append(musicKeySpace)
+				.append(".").append(getTableName(isMeta)).append(" WHERE ").append(MusicProperties.PRIMARY_ID)
+				.append("= ?");
+
+		queryObject.addValue(sessionId);
+		if (!isMeta) {
+			querySB.append(" and ").append(MusicProperties.ATTRIBUTE_NAME).append("= ?");
+			queryObject.addValue(attributeName);
+			tableName = musicAttrTable;
+		} else
+			tableName = musicMetaTable;
+
+		queryObject.appendQueryString(querySB.toString());
+		if (isAtomicGet)
+			result = MusicCore.atomicGet(musicKeySpace, tableName, sessionId, queryObject);
+		else
+			result = MusicCore.get(queryObject);
+		return MusicUtil.musicRestResponseDataParsing(result, attributeName);
+
+	}
+
+	/**
+	 * Remove session attribute data from Cassandra via Music
+	 * 
+	 * @param attributeName
+	 * @param sessionId
+	 * @return ReturnType
+	 * @throws MusicServiceException
+	 * @throws MusicLockingException 
+	 */
+	public static ReturnType removeAttribute(String attributeName, String sessionId) throws MusicServiceException, MusicLockingException {
+		logger.debug(EELFLoggerDelegate.debugLogger, "removeAttribute: start with session id: " + sessionId);
+		boolean isMeta = MusicUtil.isSessionMetaAttr(attributeName);
+		ReturnType result = null;
+		String tableName = null;
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("DELETE ").append(getDelColumn(isMeta, attributeName)).append(" FROM ").append(musicKeySpace)
+				.append(".").append(getTableName(isMeta)).append(" WHERE ").append(MusicProperties.PRIMARY_ID)
+				.append("= ? ");
+		queryObject.addValue(sessionId);
+
+		if (!isMeta) {
+			querySB.append(" and ").append(MusicProperties.ATTRIBUTE_NAME).append("= ?");
+			queryObject.addValue(attributeName);
+			tableName = musicAttrTable;
+		} else
+			tableName = musicMetaTable;
+		queryObject.appendQueryString(querySB.toString());
+		if (isAtomicPut)
+			result = MusicCore.atomicPut(musicKeySpace, tableName, sessionId, queryObject, null);
+		else
+			result = MusicCore.eventualPut(queryObject);
+		logger.debug(EELFLoggerDelegate.debugLogger,
+				"removeSession: " + attributeName + " with session id: " + sessionId + "result:" + result.getMessage());
+
+		return result;
+	}
+
+	/**
+	 * Remove entire session from Cassandra via Music
+	 * 
+	 * @param sessionId
+	 * @return ReturnType
+	 * @throws MusicServiceException
+	 * @throws MusicLockingException 
+	 */
+	public static ReturnType removeSession(String sessionId) throws MusicServiceException, MusicLockingException {
+		ReturnType result = null;
+		boolean isAtomic = isAtomicPut;
+		logger.debug(EELFLoggerDelegate.debugLogger, "removeSession: start with session id: " + sessionId);
+		PreparedQueryObject queryObject = new PreparedQueryObject();
+		StringBuilder querySB = new StringBuilder();
+		querySB.append("DELETE ").append(" FROM ").append(musicKeySpace).append(".").append(musicMetaTable)
+				.append(" WHERE ").append(MusicProperties.PRIMARY_ID).append("= ? ");
+		queryObject.appendQueryString(querySB.toString());
+		queryObject.addValue(sessionId);
+		if (isAtomic)
+			result = MusicCore.atomicPut(musicKeySpace, musicMetaTable, sessionId, queryObject, null);
+		else
+			result = MusicCore.eventualPut(queryObject);
+		logger.debug(EELFLoggerDelegate.debugLogger, "removeSession: " + musicMetaTable + " with session id: "
+				+ sessionId + "result:" + result.getMessage());
+
+		queryObject = new PreparedQueryObject();
+		querySB = new StringBuilder();
+		querySB.append("DELETE ").append(" FROM ").append(musicKeySpace).append(".").append(musicAttrTable)
+				.append(" WHERE ").append(MusicProperties.PRIMARY_ID).append("= ? ");
+		queryObject.appendQueryString(querySB.toString());
+		queryObject.addValue(sessionId);
+		if (isAtomic)
+			result = MusicCore.atomicPut(musicKeySpace, musicAttrTable, sessionId, queryObject, null);
+		else
+			result = MusicCore.eventualPut(queryObject);
+
+		logger.debug(EELFLoggerDelegate.debugLogger, "removeSession: " + musicAttrTable + " with session id: "
+				+ sessionId + "result:" + result.getMessage());
+
+		return result;
+	}
+
+	/**
+	 * Get proper table name (Meta or Attribute) base on isMeta.
+	 * 
+	 * @param isMeta
+	 * @return String
+	 */
+	private static String getTableName(boolean isMeta) {
+		StringBuilder querySB = new StringBuilder();
+		if (isMeta)
+			querySB.append(musicMetaTable);
+		else
+			querySB.append(musicAttrTable);
+		return querySB.toString();
+	}
+
+	/**
+	 * Get proper column name (Meta or Attribute) base on isMeta.
+	 * 
+	 * @param attributeName
+	 * @param isMeta
+	 * @return String
+	 */
+	private static String getColumn(String attributeName, boolean isMeta) {
+		StringBuilder querySB = new StringBuilder();
+		if (isMeta)
+			querySB.append(attributeName);
+		else
+			querySB.append("attribute_bytes");
+		return querySB.toString();
+	}
+
+	/**
+	 * Get proper column name (Meta or Attribute) base on isMeta for removing.
+	 * 
+	 * @param attributeName
+	 * @param isMeta
+	 * @return String
+	 */
+	private static String getDelColumn(boolean isMeta, String attributeName) {
+		StringBuilder querySB = new StringBuilder();
+		if (isMeta)
+			querySB.append(attributeName);
+		return querySB.toString();
+	}
+
+	/**
+	 * To set session attributes in Music
+	 * 
+	 * @param attributeName
+	 * @param value
+	 * @param session
+	 * @param sessionId
+	 * @param isMeta
+	 * @return RestResponse<String>
+	 * @throws JsonProcessingException
+	 */
+
+	public static RestResponse<String> setAttributeAPI(String attributeName, Object value, Session session,
+			String sessionId, String className, boolean isMeta) throws JsonProcessingException {
+		System.out.println("setAttribute: " + attributeName);
+		RestResponse<String> portalRestResponse = null;
+		HttpEntity<Map<String, Object>> entity = new HttpEntity<Map<String, Object>>(
+				getMusicRestBody(attributeName, value, sessionId, session, className, isMeta), getMusicHeader());
+		String url = getInsertUrl(isMeta);
+		ResponseEntity<String> response = null;
+		try {
+			response = template.exchange(url, HttpMethod.POST, entity, String.class);
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.OK, "success", response.getBody());
+		} catch (Exception e) {
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.ERROR, e.getMessage(), null);
+		}
+		return portalRestResponse;
+	}
+
+	/**
+	 * To get session attribute in Music
+	 * 
+	 * @param attributeName
+	 * @param value
+	 * @param sessionId
+	 * @param isMeta
+	 * @return RestResponse<String>
+	 */
+
+	public static RestResponse<String> getAttributeAPI(String attributeName, Object value, String sessionId,
+			boolean isMeta) {
+		System.out.println("getAttribute: " + attributeName);
+		RestResponse<String> portalRestResponse = null;
+		HttpEntity<String> entity = new HttpEntity<String>(null, getMusicHeader());
+		ResponseEntity<String> response = null;
+		String url = getSelectSessionIdUrl(attributeName, sessionId, isMeta);
+		try {
+			response = template.exchange(url, HttpMethod.GET, entity, String.class);
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.OK, "success", response.getBody());
+		} catch (Exception e) {
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.ERROR, e.getMessage(), null);
+		}
+		return portalRestResponse;
+	}
+
+	/**
+	 * To remove session attribute or session meta in Music
+	 * 
+	 * @param attributeName
+	 * @param value
+	 * @param sessionId
+	 * @param isMeta
+	 * @return RestResponse<String>
+	 */
+	public static RestResponse<String> removeAttributeAPI(String attributeName, String sessionId, boolean isMeta) {
+		RestResponse<String> portalRestResponse = null;
+		HttpEntity<Map<String, Object>> entity = new HttpEntity<>(getMusicDelRestBody(null), getMusicHeader());
+		ResponseEntity<String> response = null;
+		String url = getSelectSessionIdUrl(attributeName, sessionId, true);
+		try {
+			response = template.exchange(url, HttpMethod.DELETE, entity, String.class);
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.OK, "success", response.getBody());
+			url = getSelectSessionIdUrl(attributeName, sessionId, false);
+			response = template.exchange(url, HttpMethod.DELETE, entity, String.class);
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.OK, "success", response.getBody());
+		} catch (Exception e) {
+			portalRestResponse = new RestResponse<String>(RestStatusEnum.ERROR, e.getMessage(), null);
+		}
+		return portalRestResponse;
+	}
+
+	/**
+	 * Generate body for Music api calls
+	 * 
+	 * @return String that includes required body information for Music api
+	 *         calls
+	 * @throws JsonProcessingException
+	 */
+	public static Map<String, Object> getMusicRestBody(String attributeName, Object value, String sessionId,
+			Session session, String className, boolean isMeta) throws JsonProcessingException {
+		Map<String, Object> map = new HashMap<>();
+		/* Set up column values */
+		Map<String, Object> valueMap = new HashMap<>();
+		if (isMeta) {
+			valueMap.put(MusicProperties.PRIMARY_ID, session.getId());
+			valueMap.put(MusicProperties.SESSION_ID, session.getId());
+			valueMap.put(MusicProperties.CREATION_TIME, session.getCreationTime().toString());
+			valueMap.put(MusicProperties.LAST_ACCESS_TIME, session.getLastAccessedTime().toString());
+			valueMap.put(MusicProperties.MAX_INACTIVE_INTERVAL, session.getMaxInactiveInterval().toString());
+		} else {
+			ObjectMapper mapper = new ObjectMapper();
+			valueMap.put(MusicProperties.PRIMARY_ID, sessionId);
+			valueMap.put(MusicProperties.ATTRIBUTE_NAME, attributeName);
+			valueMap.put(MusicProperties.ATTRIBUTE_BYTES, mapper.writeValueAsString(value));
+			valueMap.put(MusicProperties.ATTRIBUTE_CLASS, className);
+		}
+		map.put("values", valueMap);
+		/* Set up consistency setting */
+		Map<String, String> consistencyInfoMap = new HashMap<>();
+		consistencyInfoMap.put(MusicProperties.getProperty(MusicProperties.MUSIC_CONSISTENCYINFO),
+				MusicProperties.getProperty(MusicProperties.MUSIC_CONSISTENCYINFO_VALUE));
+		map.put("consistencyInfo", consistencyInfoMap);
+		return map;
+	}
+
+	/**
+	 * Generate body for Music delete api calls
+	 * 
+	 * @return String that includes required body information for Music api
+	 *         calls
+	 * @throws JsonProcessingException
+	 */
+	public static Map<String, Object> getMusicDelRestBody(String attribute_name) {
+		Map<String, Object> map = new HashMap<>();
+		Map<String, String> consistencyInfoMap = new HashMap<>();
+		consistencyInfoMap.put(MusicProperties.getProperty(MusicProperties.MUSIC_CONSISTENCYINFO),
+				MusicProperties.getProperty(MusicProperties.MUSIC_CONSISTENCYINFO_VALUE));
+		if (attribute_name != null && !attribute_name.equals("")) {
+			Map<String, String> conditionsMap = new HashMap<>();
+			conditionsMap.put("attribute_name", attribute_name);
+			map.put("conditions", conditionsMap);
+		}
+		map.put("consistencyInfo", consistencyInfoMap);
+		return map;
+	}
+
+	private static String getSelectSessionIdUrl(String attributeName, String sessionId, boolean isMeta) {
+		String path = constructPath(isMeta);
+		StringBuilder attriPath = new StringBuilder();
+		attriPath.append(path).append(MusicProperties.getProperty(MusicProperties.MUSIC_ROWS)).append("?")
+				.append(MusicProperties.PRIMARY_ID).append("=").append(sessionId);
+		return attriPath.toString();
+	}
+
+	private static String getInsertUrl(boolean isMeta) {
+		String path = constructPath(isMeta);
+		StringBuilder attriPath = new StringBuilder();
+		attriPath.append(path);
+		attriPath.append(MusicProperties.getProperty(MusicProperties.MUSIC_ROWS));
+		return attriPath.toString();
+	}
+
+	/**
+	 * Generate header for Music api calls
+	 * 
+	 * @return header that contains required header information for Music api
+	 *         calls
+	 */
+	private static HttpHeaders getMusicHeader() {
+		HttpHeaders headers = new HttpHeaders();
+		headers.setContentType(MediaType.APPLICATION_JSON);
+		headers.add("X-minorVersion", MusicProperties.getProperty(MusicProperties.MUSIC_X_MINOR_VERSION));
+		headers.add("X-patchVersion", MusicProperties.getProperty(MusicProperties.MUSIC_X_PATCH_VERSION));
+		headers.add("ns", MusicProperties.getProperty(MusicProperties.MUSIC_NS));
+		headers.add("userId", MusicProperties.getProperty(MusicProperties.MUSIC_USER_ID));
+		headers.add("password", MusicProperties.getProperty(MusicProperties.MUSIC_PASSWORD));
+		return headers;
+	}
+
+	/**
+	 * Construct URL for Music api calls
+	 * 
+	 * @return path
+	 */
+	private static String constructPath(boolean isMeta) {
+		StringBuilder path = new StringBuilder();
+		path.append(MusicProperties.getProperty(MusicProperties.MUSIC_ENDPOINT))
+				.append(MusicProperties.getProperty(MusicProperties.MUSIC_VERSION)).append("/")
+				.append(MusicProperties.getProperty(MusicProperties.MUSIC_KEYSPACE)).append("/").append(musicKeySpace)
+				.append("/").append(MusicProperties.getProperty(MusicProperties.MUSIC_TABLES)).append("/");
+		if (isMeta)
+			path.append(musicMetaTable);
+		else
+			path.append(musicAttrTable);
+		path.append("/");
+		return path.toString();
+	}
+
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicProperties.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicProperties.java
new file mode 100644
index 00000000..2787b0a0
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicProperties.java
@@ -0,0 +1,217 @@
+/*
+ * ============LICENSE_START==========================================
+ * ONAP Portal SDK
+ * ===================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ============LICENSE_END============================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+
+package org.onap.portalapp.music.util;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.portalapp.music.service.MusicService;
+
+
+public class MusicProperties {
+	
+	public static final String MUSIC_ENDPOINT = "music.endpoint";
+	
+	public static final String MUSIC_VERSION = "music.version";
+	
+	public static final String MUSIC_KEYSPACE = "music.keyspace";
+	
+	public static final String MUSIC_SESSION_KEYSPACE = "music.session.keyspace";
+
+	public static final String MUSIC_TABLES = "TABLES";
+	
+	public static final String MUSIC_SESSION_ATTR_TABLES = "music.session.attr.tables";
+	
+	public static final String MUSIC_SESSION_META_TABLES = "music.session.meta.tables";
+	
+	public static final String MUSIC_ROWS = "ROW";
+	
+	public static final String MUSIC_SESSION_ROW = "music.sesion.rows";
+
+	public static final String MUSIC_X_MINOR_VERSION = "music.x.minor.version";
+	
+	public static final String MUSIC_X_PATCH_VERSION = "music.x.patch.version";
+	
+	public static final String MUSIC_AID = "AID";
+	
+	public static final String MUSIC_NS = "music.ns";
+	
+	public static final String MUSIC_USER_ID = "music.user.id";
+	
+	public static final String MUSIC_PASSWORD = "music.password";
+	
+	public static final String MUSIC_CONSISTENCYINFO = "music.consistency.info";
+	
+	public static final String MUSIC_CONSISTENCYINFO_VALUE = "music.consistency.info.value";
+	
+	public static final String MUSIC_CACHE = "music.cache";
+	
+	public static final String MUSIC_SERIALIZE_COMPRESS = "music.serialize.compress";
+
+	public static final String MUSIC_ATOMIC_GET = "music.atomic.get";
+		
+	public static final String MUSIC_ATOMIC_PUT = "music.atomic.put";
+		
+	public static final String MUSIC_ATOMIC_POST = "music.atomic.post";
+	
+	public static final String SESSION_MAX_INACTIVE_INTERVAL_SECONDS = "music.session.max.inactive.interval.seconds";
+	
+	public static final String ATTRIBUTE_NAME = "ATTRIBUTE_NAME";
+	
+	public static final String ATTRIBUTE_BYTES = "ATTRIBUTE_BYTES";
+	
+	public static final String ATTRIBUTE_CLASS = "ATTRIBUTE_CLASS";
+	
+	public static final String PRIMARY_ID = "PRIMARY_ID";
+	
+	public static final String SESSION_ID = "SESSION_ID";
+	
+	public static final String CREATION_TIME = "CREATION_TIME";
+	
+	public static final String LAST_ACCESS_TIME = "LAST_ACCESS_TIME";
+	
+	public static final String MAX_INACTIVE_INTERVAL = "MAX_INACTIVE_INTERVAL";
+	
+	public static final String EXPIRY_TIME = "EXPIRY_TIME";
+	
+	public static final String PRINCIPAL_NAME = "PRINCIPAL_NAME";
+	
+	private MusicProperties(){}
+
+	private static Properties properties;
+	
+	private static String propertyFileName = "music.properties";
+
+	private static final Object lockObject = new Object();
+	
+	private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicProperties.class);
+
+	/**
+	 * Gets the property value for the specified key. If a value is found, leading
+	 * and trailing space is trimmed.
+	 *
+	 * @param property
+	 *            Property key
+	 * @return Value for the named property; null if the property file was not
+	 *         loaded or the key was not found.
+	 */
+	public static String getProperty(String property) {
+		if (properties == null) {
+			synchronized (lockObject) {
+				try {
+					if (!initialize()) {
+						logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + propertyFileName);
+						return null;
+					}
+				} catch (IOException e) {
+					logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + propertyFileName ,e);
+					return null;
+				}
+			}
+		}
+		String value = properties.getProperty(property);
+		if (value != null)
+			value = value.trim();
+		return value;
+	}
+
+	/**
+	 * Reads properties from a portal.properties file on the classpath.
+	 * 
+	 * Clients do NOT need to call this method. Clients MAY call this method to test
+	 * whether the properties file can be loaded successfully.
+	 * 
+	 * @return True if properties were successfully loaded, else false.
+	 * @throws IOException
+	 *             On failure
+	 */
+	private static boolean initialize() throws IOException {
+		if (properties != null)
+			return true;
+		InputStream in = MusicProperties.class.getClassLoader().getResourceAsStream(propertyFileName);
+		if (in == null)
+			return false;
+		properties = new Properties();
+		try {
+			properties.load(in);
+		} finally {
+			in.close();
+		}
+		return true;
+	}
+	
+	/**
+	 * Tests whether a property value is available for the specified key.
+	 * 
+	 * @param key
+	 *            Property key
+	 * @return True if the key is known, otherwise false.
+	 */
+/*	public static boolean containsProperty(String key) {
+		return environment.containsProperty(key);
+	}*/
+
+	/**
+	 * Returns the property value associated with the given key (never
+	 * {@code null}), after trimming any trailing space.
+	 * 
+	 * @param key
+	 *            Property key
+	 * @return Property value; the empty string if the environment was not
+	 *         autowired, which should never happen.
+	 * @throws IllegalStateException
+	 *             if the key is not found
+	 */
+/*	public static String getProperty(String key) {
+		String value = "";
+		if (environment == null) {
+		//	logger.error(EELFLoggerDelegate.errorLogger, "getProperty: environment is null, should never happen!");
+		} else {
+			value = environment.getRequiredProperty(key);
+			// java.util.Properties preserves trailing space
+			if (value != null)
+				value = value.trim();
+		}
+		return value;
+	}*/
+
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java
new file mode 100644
index 00000000..f582a9db
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/java/org/onap/portalapp/music/util/MusicUtil.java
@@ -0,0 +1,125 @@
+package org.onap.portalapp.music.util;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.nio.ByteBuffer;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.GZIPOutputStream;
+
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.portalapp.music.conf.MusicSession;
+
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+
+public class MusicUtil {
+	private static final Set<String> sessionAttrNameSet = new HashSet<>(Arrays.asList("CREATION_TIME", "LAST_ACCESS_TIME","MAX_INACTIVE_INTERVAL","EXPIRY_TIME","PRINCIPAL_NAME"));
+
+	private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicUtil.class);
+	private static String atomicPut = MusicProperties.getProperty(MusicProperties.MUSIC_ATOMIC_PUT);
+	private static String atomicGet = MusicProperties.getProperty(MusicProperties.MUSIC_ATOMIC_GET);
+	private static String cached = MusicProperties.getProperty(MusicProperties.MUSIC_CACHE);
+	private static String musicSerializeCompress = MusicProperties.getProperty(MusicProperties.MUSIC_SERIALIZE_COMPRESS);
+	public static boolean isSessionMetaAttr(String key){
+		return sessionAttrNameSet.contains(key);
+	}
+
+	public static <T> T musicRestResponseDataParsing(ResultSet rs, String attributeName) throws Exception{
+		logger.debug(EELFLoggerDelegate.debugLogger, "musicRestResponseDataParsing: start");
+		Row row = rs.one();
+		if(!sessionAttrNameSet.contains(attributeName)){
+			if(row!=null)
+				return MusicUtil.musicDeserialize(row.getBytes("attribute_bytes"));
+		}else{
+			return (T) row.getString(attributeName);
+		}
+		return null;
+	}
+
+	public static <T> T musicDeserialize (ByteBuffer byteBuf) throws Exception{
+		logger.debug(EELFLoggerDelegate.debugLogger, "musicDeserialize: start");
+		ByteArrayInputStream byteArr = new ByteArrayInputStream(byteBuf.array());
+		ObjectInputStream ois  = null;
+		if(isMusicSerializeCompress()){
+			GZIPInputStream zos = new GZIPInputStream(byteArr);
+			ois = new ObjectInputStream(zos);
+		}else{
+			ois = new ObjectInputStream(byteArr);		
+		}
+		return (T) ois.readObject();
+	}
+
+	public static ByteBuffer musicSerialize (Object value) throws Exception{
+		logger.debug(EELFLoggerDelegate.debugLogger, "musicSerialize: start");
+		ByteArrayOutputStream bo = new ByteArrayOutputStream();			
+		try {	
+			if(isMusicSerializeCompress()){
+				GZIPOutputStream zos = new GZIPOutputStream(bo);
+				ObjectOutputStream oos = new ObjectOutputStream(zos);
+				oos.writeObject(value);
+				oos.flush();
+				zos.finish();
+			}else{		
+				ObjectOutputStream oos = new ObjectOutputStream(bo);
+				oos.writeObject(value);
+				oos.flush();
+			}
+		} catch (IOException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "Failed to serialize ");
+		}
+		return ByteBuffer.wrap(bo.toByteArray());
+	}
+
+	public static MusicSession parseMetaData (Row row) throws Exception{
+		logger.debug(EELFLoggerDelegate.debugLogger, "parseMetaData: start");
+
+		if(row==null)
+			return null;
+		String sessionId = row.getString("primary_id");
+		MusicSession musicSession = new MusicSession(sessionId);
+		musicSession.setCreationTime(Instant.parse(row.getString("creation_time")));
+		musicSession.setLastAccessedTime(Instant.parse(row.getString("last_access_time")));
+		musicSession.setMaxInactiveInterval(Duration.parse(row.getString("max_inactive_interval")));
+		return musicSession;
+	}
+
+	public static boolean isMusicSerializeCompress(){
+		if(musicSerializeCompress==null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_SERIALIZE_COMPRESS +" fall back to eventual put");
+			return false;
+		}
+		return musicSerializeCompress.trim().equalsIgnoreCase("true");
+	}
+
+	public static boolean isAtomicPut(){
+		if(atomicPut==null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_ATOMIC_PUT +" fall back to eventual put");
+			return false;
+		}
+		return atomicPut.trim().equalsIgnoreCase("true");
+	}
+
+	public static boolean isAtomicGet(){
+		if(atomicGet==null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_ATOMIC_GET +" fall back to eventual get");
+			return false;
+		}
+		return atomicGet.trim().equalsIgnoreCase("true");
+	}
+
+	public static boolean isCached(){
+		if(cached==null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Failed to read property file " + MusicProperties.MUSIC_CACHE +" fall back to non cache");
+			return false;
+		}
+		return cached.trim().equalsIgnoreCase("true");
+	}
+}
diff --git a/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/2.4.4/core-2.4.4.jar b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/2.4.4/core-2.4.4.jar
new file mode 100644
index 00000000..c2dd2dba
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/2.4.4/core-2.4.4.jar
diff --git a/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/maven-metadata-local.xml b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/maven-metadata-local.xml
new file mode 100644
index 00000000..01c2b2bf
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/core/maven-metadata-local.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<metadata>
+  <groupId>org.onap.music</groupId>
+  <artifactId>core</artifactId>
+  <versioning>
+    <release>2.4.4</release>
+    <versions>
+      <version>2.4.4</version>
+    </versions>
+    <lastUpdated>20180302203455</lastUpdated>
+  </versioning>
+</metadata>
diff --git a/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/2.4.4/dependency-2.4.4.jar b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/2.4.4/dependency-2.4.4.jar
new file mode 100644
index 00000000..8c5a5e04
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/2.4.4/dependency-2.4.4.jar
diff --git a/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/maven-metadata-local.xml b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/maven-metadata-local.xml
new file mode 100644
index 00000000..695d90ac
--- /dev/null
+++ b/ecomp-sdk/epsdk-music/src/main/resources/org/onap/music/dependency/maven-metadata-local.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<metadata>
+  <groupId>org.onap.music</groupId>
+  <artifactId>dependency</artifactId>
+  <versioning>
+    <release>2.4.4</release>
+    <versions>
+      <version>2.4.4</version>
+    </versions>
+    <lastUpdated>20180302203455</lastUpdated>
+  </versioning>
+</metadata>