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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
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+++ 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;
+}