push addional code

Change-Id: Ia427bb3460cda3a896f8faced2de69eaf3807b74
Signed-off-by: Michael Lando <ml636r@att.com>

9 files changed, 591 insertions, 0 deletions

diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/api/ValidationManager.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/api/ValidationManager.java
new file mode 100644
index 0000000000..d18af3a27b
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/api/ValidationManager.java
@@ -0,0 +1,35 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.api;
+
+
+import org.openecomp.sdc.datatypes.error.ErrorMessage;
+
+import java.util.List;
+import java.util.Map;
+
+public interface ValidationManager {
+
+  Map<String, List<ErrorMessage>> validate();
+
+  void addFile(String fileName, byte[] validationContent);
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/ErrorMessagesFormatBuilder.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/ErrorMessagesFormatBuilder.java
new file mode 100644
index 0000000000..210ce76c41
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/ErrorMessagesFormatBuilder.java
@@ -0,0 +1,30 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.errors;
+
+public class ErrorMessagesFormatBuilder {
+
+  public static String getErrorWithParameters(String error, String... params) {
+    return String.format(error, params);
+  }
+
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/Messages.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/Messages.java
new file mode 100644
index 0000000000..bca4e820a9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/errors/Messages.java
@@ -0,0 +1,117 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.errors;
+
+public enum Messages {
+  INVALID_ZIP_FILE("Invalid zip file"),
+  /* upload errors */
+
+  //NO_ZIP_UPLOADED("No zip file was uploaded or zip file doesn't exist"),
+  ZIP_SHOULD_NOT_CONTAIN_FOLDERS("Zip file should not contain folders"),
+  MANIFEST_NOT_EXIST("Manifest doesn't exist"),
+  NO_ZIP_FILE_WAS_UPLOADED_OR_ZIP_NOT_EXIST("no zip file was uploaded or zip file doesn't exist"),
+
+
+  /* manifest errors*/
+  MISSING_FILE_IN_ZIP("Missing file in zip"),
+  MISSING_FILE_IN_MANIFEST("Missing file in manifest"),
+  MISSING_FILE_NAME_IN_MANIFEST("Missing file name in manifest - %s"),
+  MISSING_NESTED_FILE("Missing nested file - %s"),
+  MISSING_ARTIFACT("Missing artifact - %s"),
+  WRONG_HEAT_FILE_EXTENSION("Wrong HEAT file extension - %s"),
+  WRONG_ENV_FILE_EXTENSION("Wrong ENV file extension - %s"),
+  INVALID_MANIFEST_FILE("invalid manifest file"),
+  INVALID_FILE_TYPE("Missing or Unknown file type in Manifest"),
+  ENV_NOT_ASSOCIATED_TO_HEAT("ENV file must be associated to a HEAT file"),
+
+  /* content errors*/
+  INVALID_YAML_FORMAT("Invalid YAML format - %s"),
+  INVALID_YAML_FORMAT_REASON("Invalid YAML format Problem - [%s]"),
+  EMPTY_YAML_FILE("empty yaml"),
+  GENERAL_YAML_PARSER_ERROR("general parser error"),
+  GENERAL_HEAT_PARSER_ERROR("general parser error"),
+  INVALID_HEAT_FORMAT_REASON("Invalid HEAT format problem - [%s]"),
+  MISSING_RESOURCE_IN_DEPENDS_ON("a Missing resource in depend On Missing Resource ID [%s]"),
+  REFERENCED_PARAMETER_NOT_FOUND("Referenced parameter - %s - not found, used in resource - %s"),
+  GET_ATTR_NOT_FOUND("get_attr attribute not found - %s in resource %s"),
+  MISSING_PARAMETER_IN_NESTED(
+      "Referenced parameter not found in nested file - %s, resource name - %s, "
+              + "parameter name - %s"),
+  NESTED_LOOP("Nested files loop - %s"),
+  MORE_THAN_ONE_BIND_FROM_NOVA_TO_PORT("Resource Port %s exceed allowed relations from NovaServer"),
+  SERVER_NOT_DEFINED_FROM_NOVA("Missing server group definition - %s, %s"),
+  WRONG_POLICY_IN_SERVER_GROUP("Wrong policy in server group - %s"),
+  MISSING_IMAGE_AND_FLAVOR("Missing both Image and Flavor in NOVA Server - %s"),
+  ENV_INCLUDES_PARAMETER_NOT_IN_HEAT("Env file %s includes a parameter not in HEAT - %s"),
+  PARAMETER_ENV_VALUE_NOT_ALIGN_WITH_TYPE("Parameter env value %s not align with type"),
+  PARAMETER_DEFAULT_VALUE_NOT_ALIGN_WITH_TYPE(
+      "Parameter - %s default value not align with type %s"),
+  INVALID_RESOURCE_TYPE("A resource has an invalid or unsupported type - %s, Resource ID [%s]"),
+  ARTIFACT_FILE_NOT_REFERENCED("Artifact file is not referenced."),
+  SERVER_OR_SECURITY_GROUP_NOT_IN_USE("%s not in use, Resource Id [%s]"),
+  PORT_NO_BIND_TO_ANY_NOVA_SERVER("Port not bind to any NOVA Server, Resource Id [%s]"),
+  INVALID_GET_RESOURCE_SYNTAX(
+      "invalid get_resource syntax is in use - %s , get_resource function should"
+              + " get the resource id of the referenced resource"),
+  INVALID_RESOURCE_GROUP_TYPE(
+      "OS::Heat::ResourceGroup resource with resource_def which is not "
+              + "pointing to nested heat file is not supported,"
+              + " Resource ID [%s], resource_def type [%s]"),
+
+  /* warnings */
+  REFERENCED_RESOURCE_NOT_FOUND("Referenced resource - %s not found"),
+  MISSING_GET_PARAM("Missing get_param in %s, Resource Id [%s]"),
+
+  /*Ecomp Guide lines*/
+  MISSING_NOVA_SERVER_METADATA("Missing Nova Server Metadata property Resource id [%s]"),
+  MISSING_NOVA_SERVER_VNF_ID("Missing VNF_ID Resource id [%s]"),
+  MISSING_NOVA_SERVER_VF_MODULE_ID("Missing VF_MODULE_ID, Resource id [%s]"),
+  NETWORK_PARAM_NOT_ALIGNED_WITH_GUIDE_LINE(
+      "Network Parameter Name not aligned with Guidelines Parameter Name [%s] Resource ID [%s]"),
+  MISSIN_BASE_HEAT_FILE(
+      "Missing Base HEAT. Pay attention that without Base HEAT, there will be no shared resources"),
+  MULTI_BASE_HEAT_FILE("Multi Base HEAT. Expected only one. Files %s."),
+  RESOURCE_NOT_DEFINED_IN_OUTPUT(
+      "Resource is not defined as output and thus cannot be Shared. resource id - %s"),
+  RESOURCE_CONNECTED_TO_TWO_EXTERNAL_NETWORKS_WITH_SAME_ROLE(
+      "A resource is connected twice to the same network role Resource ID [%s] Network Role [%s]."),
+  VOLUME_HEAT_NOT_EXPOSED("Volume is not defined as output and thus cannot be attached %s"),
+  FLOATING_IP_NOT_IN_USE("OS::Neutron::FloatingIP is in use, Resource ID [%s]"),
+  FIXED_IPS_NOT_ALIGNED_WITH_GUIDE_LINES("Fixed_IPS not aligned with Guidelines, Resource ID [%s]"),
+  NOVA_SERVER_NAME_NOT_ALIGNED_WITH_GUIDE_LINES(
+      "Server Name not aligned with Guidelines, Resource ID [%s]"),
+  AVAILABILITY_ZONE_NOT_ALIGNED_WITH_GUIDE_LINES(
+      "Server Availability Zone not aligned with Guidelines, Resource ID [%s]"),
+  WRONG_IMAGE_OR_FLAVOR_NAME_NOVA_SERVER("Wrong %s name format in NOVA Server, Resource ID [%s]");
+
+
+  private String errorMessage;
+
+  Messages(String errorMessage) {
+    this.errorMessage = errorMessage;
+  }
+
+  public String getErrorMessage() {
+    return errorMessage;
+  }
+
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/factory/ValidationManagerFactory.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/factory/ValidationManagerFactory.java
new file mode 100644
index 0000000000..6031bc14f7
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/factory/ValidationManagerFactory.java
@@ -0,0 +1,32 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.factory;
+
+import org.openecomp.core.factory.api.AbstractComponentFactory;
+import org.openecomp.core.factory.api.AbstractFactory;
+import org.openecomp.core.validation.api.ValidationManager;
+
+public abstract class ValidationManagerFactory extends AbstractComponentFactory<ValidationManager> {
+
+  public static ValidationManagerFactory getInstance() {
+    return AbstractFactory.getInstance(ValidationManagerFactory.class);
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/interfaces/Validator.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/interfaces/Validator.java
new file mode 100644
index 0000000000..e32dfd72b9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/interfaces/Validator.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.interfaces;
+
+import org.openecomp.core.validation.types.GlobalValidationContext;
+
+public interface Validator {
+
+  //public void validate(String fileName, GlobalValidationContext globalContext);
+  void validate(GlobalValidationContext globalContext);
+  //Object convert(FileValidationContext
+  // fileValidationContext);
+
+  /*default boolean filter(FileValidationContext filecontext,
+  GlobalValidationContext globalValidationContext){
+        return true;
+  }*/
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/FileValidationContext.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/FileValidationContext.java
new file mode 100644
index 0000000000..81e8931dab
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/FileValidationContext.java
@@ -0,0 +1,53 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.types;
+
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+
+public class FileValidationContext {
+  private String fileName;
+  private MessageContainer messageContainer = new MessageContainer();
+  private byte[] content;
+
+  public FileValidationContext(String fileName, byte[] fileContent) {
+    this.fileName = fileName;
+    this.content = fileContent;
+  }
+
+
+  MessageContainer getMessageContainer() {
+    return this.messageContainer;
+  }
+
+  public InputStream getContent() {
+    return new ByteArrayInputStream(content);
+  }
+
+  public String getFileName() {
+    return this.fileName;
+  }
+
+  public boolean isEmpty() {
+    return content == null || content.length == 0;
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/GlobalValidationContext.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/GlobalValidationContext.java
new file mode 100644
index 0000000000..e6917e84f6
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/GlobalValidationContext.java
@@ -0,0 +1,142 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.types;
+
+import org.apache.commons.collections4.CollectionUtils;
+import org.openecomp.core.utilities.CommonMethods;
+import org.openecomp.core.validation.interfaces.Validator;
+import org.openecomp.sdc.common.utils.AsdcCommon;
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.InputStream;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiPredicate;
+import java.util.stream.Collectors;
+
+public class GlobalValidationContext {
+
+  private static Logger logger = LoggerFactory.getLogger(Validator.class);
+  private Map<String, FileValidationContext> fileContextMap = new HashMap<>();
+  private Map<String, MessageContainer> messageContainerMap = new HashMap<>();
+
+  /**
+   * Add message.
+   *
+   * @param fileName the file name
+   * @param level    the level
+   * @param message  the message
+   */
+  public void addMessage(String fileName, ErrorLevel level, String message) {
+
+    printLog(fileName, message, level);
+
+    if (fileContextMap.containsKey(fileName)) {
+      fileContextMap.get(fileName).getMessageContainer().getMessageBuilder().setMessage(message)
+          .setLevel(level).create();
+    } else {
+      if (CommonMethods.isEmpty(fileName)) {
+        fileName = AsdcCommon.UPLOAD_FILE;
+      }
+      MessageContainer messageContainer;
+      synchronized (this) {
+        messageContainer = messageContainerMap.get(fileName);
+        if (messageContainer == null) {
+          messageContainer = new MessageContainer();
+          messageContainerMap.put(fileName, messageContainer);
+        }
+      }
+      messageContainer.getMessageBuilder().setMessage(message).setLevel(level).create();
+    }
+  }
+
+  /**
+   * Gets file content.
+   *
+   * @param fileName the file name
+   * @return the file content
+   */
+  public InputStream getFileContent(String fileName) {
+    FileValidationContext fileContext = fileContextMap.get(fileName);
+    if (fileContext == null || fileContext.isEmpty()) {
+      return null;
+    }
+    return fileContext.getContent();
+  }
+
+  public void addFileContext(String fileName, byte[] fileContent) {
+    fileContextMap.put(fileName, new FileValidationContext(fileName, fileContent));
+  }
+
+  /**
+   * Gets context message containers.
+   *
+   * @return the context message containers
+   */
+  public Map<String, MessageContainer> getContextMessageContainers() {
+
+    Map<String, MessageContainer> contextMessageContainer = new HashMap<>();
+    fileContextMap.entrySet().stream().filter(entry -> CollectionUtils
+        .isNotEmpty(entry.getValue().getMessageContainer().getErrorMessageList())).forEach(
+          entry -> contextMessageContainer.put(
+            entry.getKey(), entry.getValue().getMessageContainer()));
+    messageContainerMap.entrySet().stream()
+        .filter(entry -> CollectionUtils.isNotEmpty(entry.getValue().getErrorMessageList()))
+        .forEach(entry -> contextMessageContainer.put(entry.getKey(), entry.getValue()));
+    return contextMessageContainer;
+  }
+
+  public Map<String, FileValidationContext> getFileContextMap() {
+    return fileContextMap;
+  }
+
+  private void printLog(String fileName, String message, ErrorLevel level) {
+
+    String messageToPrint = message + " in file[" + fileName + "]";
+
+    switch (level) {
+      case ERROR:
+        logger.error(messageToPrint);
+        break;
+      case WARNING:
+        logger.warn(messageToPrint);
+        break;
+      case INFO:
+        logger.info(messageToPrint);
+        break;
+      default:
+        break;
+    }
+  }
+
+  public Collection<String> files(BiPredicate<String, GlobalValidationContext> func) {
+    return fileContextMap.keySet().stream().filter(t -> func.test(t, this))
+        .collect(Collectors.toList());
+  }
+
+  public Collection<String> getFiles() {
+    return this.getFileContextMap().keySet();
+  }
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainer.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainer.java
new file mode 100644
index 0000000000..9d37bade67
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainer.java
@@ -0,0 +1,82 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.types;
+
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+import org.openecomp.sdc.datatypes.error.ErrorMessage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Predicate;
+
+public class MessageContainer {
+
+  private List<ErrorMessage> errorMessageList = new ArrayList<>();
+
+  public List<ErrorMessage> getErrorMessageList() {
+    return errorMessageList;
+  }
+
+  public MessageBuilder getMessageBuilder() {
+    return new MessageBuilder();
+  }
+
+  /**
+   * Gets error message list by level.
+   *
+   * @param level the level
+   * @return the error message list by level
+   */
+  public List<ErrorMessage> getErrorMessageListByLevel(ErrorLevel level) {
+
+    List<ErrorMessage> errors = new ArrayList<>();
+    errorMessageList.stream().filter(new Predicate<ErrorMessage>() {
+      @Override
+      public boolean test(ErrorMessage errorMessage) {
+        return errorMessage.getLevel().equals(level);
+      }
+    }).forEach(errorMessage -> errors.add(errorMessage));
+    return errors;
+  }
+
+  public class MessageBuilder {
+
+    String message;
+    ErrorLevel level;
+
+    MessageBuilder setMessage(String message) {
+      this.message = message;
+      return this;
+    }
+
+    MessageBuilder setLevel(ErrorLevel level) {
+      this.level = level;
+      return this;
+    }
+
+    void create() {
+      ErrorMessage errorMessage = new ErrorMessage(level, message);
+      if (!errorMessageList.contains(errorMessage)) {
+        errorMessageList.add(errorMessage);
+      }
+    }
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainerUtil.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainerUtil.java
new file mode 100644
index 0000000000..c678bb5014
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-api/src/main/java/org/openecomp/core/validation/types/MessageContainerUtil.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.core.validation.types;
+
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+import org.openecomp.sdc.datatypes.error.ErrorMessage;
+
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class MessageContainerUtil {
+
+  /**
+   * Gets message by level.
+   *
+   * @param level    the level
+   * @param messages the messages
+   * @return the message by level
+   */
+  public static Map<String,
+          List<ErrorMessage>> getMessageByLevel(
+          ErrorLevel level,Map<String,List<ErrorMessage>> messages) {
+    if (messages == null) {
+      return null;
+    }
+    Map<String, List<ErrorMessage>> filteredMessages = new HashMap<>();
+    messages.entrySet().stream().forEach(
+        entry -> entry.getValue().stream().filter(message -> message.getLevel().equals(level))
+            .forEach(message -> addMessage(entry.getKey(), message, filteredMessages
+            )));
+    return filteredMessages;
+  }
+
+  private static void addMessage(String fileName, ErrorMessage message,
+                                 Map<String, List<ErrorMessage>> messages) {
+    List<ErrorMessage> messageList = messages.get(fileName);
+    if (messageList == null) {
+      messageList = new ArrayList<>();
+      messages.put(fileName, messageList);
+    }
+    messageList.add(message);
+  }
+}