push addional code

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

10 files changed, 637 insertions, 0 deletions

diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/RestConstants.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/RestConstants.java
new file mode 100644
index 0000000000..499bd6e785
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/RestConstants.java
@@ -0,0 +1,29 @@
+/*-
+ * ============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.sdcrests.common;
+
+public class RestConstants {
+  public static final String USER_HEADER_PARAM = "USER_ID";
+  public static final String USER_MISSING_ERROR_MSG =
+      "Field does not conform to predefined criteria : user : may not be null";
+  public static final String INVALID_JSON_ERROR_MESSAGE =
+      "Field does not conform to predefined criteria : body :must be in JSON format";
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorCodeToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorCodeToDto.java
new file mode 100644
index 0000000000..cad5c69899
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorCodeToDto.java
@@ -0,0 +1,34 @@
+/*-
+ * ============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.sdcrests.common.mapping;
+
+import org.openecomp.sdc.common.errors.ErrorCode;
+import org.openecomp.sdcrests.common.types.ErrorCodeDto;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapErrorCodeToDto extends MappingBase<ErrorCode, ErrorCodeDto> {
+  @Override
+  public void doMapping(ErrorCode source, ErrorCodeDto target) {
+    target.setId(source.id());
+    target.setCategory(source.category());
+    target.setMessage(source.message());
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorMessageToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorMessageToDto.java
new file mode 100644
index 0000000000..83c7b15980
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/mapping/MapErrorMessageToDto.java
@@ -0,0 +1,33 @@
+/*-
+ * ============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.sdcrests.common.mapping;
+
+import org.openecomp.sdc.datatypes.error.ErrorMessage;
+import org.openecomp.sdcrests.common.types.ErrorMessageDto;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapErrorMessageToDto extends MappingBase<ErrorMessage, ErrorMessageDto> {
+  @Override
+  public void doMapping(ErrorMessage source, ErrorMessageDto target) {
+    target.setMessage(source.getMessage());
+    target.setLevel(source.getLevel());
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorCodeDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorCodeDto.java
new file mode 100644
index 0000000000..3615f89afc
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorCodeDto.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.sdcrests.common.types;
+
+import org.openecomp.sdc.common.errors.ErrorCategory;
+
+public class ErrorCodeDto {
+  private String id;
+  private String message;
+  private ErrorCategory category;
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+
+  public String getMessage() {
+    return message;
+  }
+
+  public void setMessage(String message) {
+    this.message = message;
+  }
+
+  public ErrorCategory getCategory() {
+    return category;
+  }
+
+  public void setCategory(ErrorCategory category) {
+    this.category = category;
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorMessageDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorMessageDto.java
new file mode 100644
index 0000000000..f63a9b0ced
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/common/types/ErrorMessageDto.java
@@ -0,0 +1,44 @@
+/*-
+ * ============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.sdcrests.common.types;
+
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+
+public class ErrorMessageDto {
+  private ErrorLevel level;
+  private String message;
+
+  public ErrorLevel getLevel() {
+    return level;
+  }
+
+  public void setLevel(ErrorLevel level) {
+    this.level = level;
+  }
+
+  public String getMessage() {
+    return message;
+  }
+
+  public void setMessage(String message) {
+    this.message = message;
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java
new file mode 100644
index 0000000000..67da814f48
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java
@@ -0,0 +1,163 @@
+/*-
+ * ============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.sdcrests.errors;
+
+import org.codehaus.jackson.map.JsonMappingException;
+import org.hibernate.validator.internal.engine.path.PathImpl;
+import org.openecomp.core.utilities.CommonMethods;
+import org.openecomp.core.utilities.file.FileUtils;
+import org.openecomp.core.utilities.json.JsonUtil;
+import org.openecomp.sdc.common.errors.CoreException;
+import org.openecomp.sdc.common.errors.ErrorCategory;
+import org.openecomp.sdc.common.errors.ErrorCode;
+import org.openecomp.sdc.common.errors.ErrorCodeAndMessage;
+import org.openecomp.sdc.common.errors.GeneralErrorBuilder;
+import org.openecomp.sdc.common.errors.JsonMappingErrorBuilder;
+import org.openecomp.sdc.common.errors.ValidationErrorBuilder;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.validation.ConstraintViolation;
+import javax.validation.ConstraintViolationException;
+import javax.validation.Path;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+
+public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
+  private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE =
+      "errorCodesToResponseStatusMapping.json";
+  private static Map<String, String> errorCodeToResponseStatus = JsonUtil
+      .json2Object(FileUtils.getFileInputStream(ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE),
+          Map.class);
+  private static org.slf4j.Logger logger = LoggerFactory.getLogger(DefaultExceptionMapper.class);
+
+  @Override
+  public Response toResponse(Exception e0) {
+    Response response;
+    if (e0 instanceof CoreException) {
+      response = transform(CoreException.class.cast(e0));
+    } else if (e0 instanceof ConstraintViolationException) {
+      response = transform(ConstraintViolationException.class.cast(e0));
+
+    } else if (e0 instanceof JsonMappingException) {
+      response = transform(JsonMappingException.class.cast(e0));
+
+    } else {
+      response = transform(e0);
+    }
+
+    List<Object> contentTypes = new ArrayList<>();
+    contentTypes.add(MediaType.APPLICATION_JSON);
+    response.getMetadata().put("Content-Type", contentTypes);
+    return response;
+  }
+
+  private Response transform(CoreException coreException) {
+    Response response;
+    ErrorCode code = coreException.code();
+    logger.error(code.message(), coreException);
+
+    if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
+      if (Response.Status.NOT_FOUND.name().equals(errorCodeToResponseStatus.get(code.id()))) {
+        response = Response
+            .status(Response.Status.NOT_FOUND)
+            .entity(toEntity(Response.Status.NOT_FOUND, code))
+            .build();
+      } else if (Response.Status.BAD_REQUEST.name()
+          .equals(errorCodeToResponseStatus.get(code.id()))) {
+        response = Response
+            .status(Response.Status.BAD_REQUEST)
+            .entity(toEntity(Response.Status.BAD_REQUEST, code))
+            .build();
+      } else {
+        response = Response
+            .status(Response.Status.EXPECTATION_FAILED)
+            .entity(toEntity(Response.Status.EXPECTATION_FAILED, code))
+            .build();
+      }
+    } else {
+      response = Response
+          .status(Response.Status.INTERNAL_SERVER_ERROR)
+          .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, code))
+          .build();
+    }
+
+
+    return response;
+  }
+
+  private Response transform(ConstraintViolationException validationException) {
+    Set<ConstraintViolation<?>> constraintViolationSet =
+        validationException.getConstraintViolations();
+    String message;
+
+    String fieldName = null;
+    if (!CommonMethods.isEmpty(constraintViolationSet)) {
+      // getting the first violation message for the output response.
+      ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
+      message = constraintViolation.getMessage();
+      fieldName = getFieldName(constraintViolation.getPropertyPath());
+
+    } else {
+      message = validationException.getMessage();
+    }
+
+    ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
+
+    logger.error(validationErrorCode.message(), validationException);
+    return Response
+        .status(Response.Status.EXPECTATION_FAILED) //error 417
+        .entity(toEntity(Response.Status.EXPECTATION_FAILED, validationErrorCode))
+        .build();
+  }
+
+
+  private Response transform(JsonMappingException jsonMappingException) {
+    ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
+    logger.error(jsonMappingErrorCode.message(), jsonMappingException);
+    return Response
+        .status(Response.Status.EXPECTATION_FAILED) //error 417
+        .entity(toEntity(Response.Status.EXPECTATION_FAILED, jsonMappingErrorCode))
+        .build();
+  }
+
+  private Response transform(Exception e0) {
+    ErrorCode generalErrorCode = new GeneralErrorBuilder(e0.getMessage()).build();
+    logger.error(generalErrorCode.message(), e0);
+    return Response
+        .status(Response.Status.INTERNAL_SERVER_ERROR)
+        .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, generalErrorCode))
+        .build();
+  }
+
+  private String getFieldName(Path propertyPath) {
+    return ((PathImpl) propertyPath).getLeafNode().toString();
+  }
+
+  private Object toEntity(Response.Status status, ErrorCode code) {
+    return new ErrorCodeAndMessage(status, code);
+  }
+
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java
new file mode 100644
index 0000000000..7382ef72eb
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java
@@ -0,0 +1,104 @@
+/*-
+ * ============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.sdcrests.mapping;
+
+/**
+ * Base class for all mapping classes. Mapping classes will perform data mapping from source object
+ * to target object Base class provides following<br>
+ * <ol>
+ * <li>provides life cycle of mapping class , first mapSimpleProperties is called and then
+ * mapComplexProperties is called.</li>
+ * <li>methods mapSimpleProperties and mapComplexProperties with default implementation,
+ * these should be overridden by concrete mapping classes for writing mapping logic.</li>
+ * </ol>
+ */
+
+public abstract class MappingBase<S, T> {
+
+  /**
+   * Method is called for starting mapping from source object to target object method sets context
+   * in the thread locale and than calls mapSimpleProperties and mapComplexProperties respectively.
+   *
+   * @param source : source object for mapping
+   * @param clazz  : target <code>Class</code> for mapping
+   * @return <code>T</code> - instance of type <code>T</code>
+   */
+
+  public final T applyMapping(final S source, Class<T> clazz) {
+    T target = (T) instantiateTarget(clazz);
+    if (source == null || target == null) {
+      //TODO: what what?
+    } else {
+      preMapping(source, target);
+      doMapping(source, target);
+      postMapping(source, target);
+
+    }
+    return target;
+
+  }
+
+  /**
+   * This method is called before the <code>doMapping</code> method.
+   */
+
+  public void preMapping(final S source, T target) {
+  }
+
+  /**
+   * The actual method that does the mapping between the <code>source</code>
+   * to <code>target</code> objects.
+   * This method is being called automatically as part of the mapper class.
+   * This method must be override (it is abstract) by the mapper class.
+   *
+   * @param source - the source object.
+   * @param target - the target object.
+   */
+
+  public abstract void doMapping(final S source, T target);
+
+  /**
+   * This method is called after the <code>doMapping</code> method.
+   */
+
+  public void postMapping(final S source, T target) {
+  }
+
+  /**
+   * Creates the instance of the input class.
+   *
+   * @return <code>Object</code>
+   */
+
+  private Object instantiateTarget(final Class<?> clazz) {
+    Object object = null;
+    try {
+      object = clazz.newInstance();
+
+    } catch (InstantiationException | IllegalAccessException e0) {
+      //Do nothing
+    }
+    return object;
+
+  }
+
+}
+
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/versioning/types/VersioningAction.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/versioning/types/VersioningAction.java
new file mode 100644
index 0000000000..8cb5a061b9
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/versioning/types/VersioningAction.java
@@ -0,0 +1,28 @@
+/*-
+ * ============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.sdcrests.versioning.types;
+
+public enum VersioningAction {
+  Checkout,
+  Undo_Checkout,
+  Checkin,
+  Submit;
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/GenericCollectionWrapper.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/GenericCollectionWrapper.java
new file mode 100644
index 0000000000..b8d47e4ef3
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/GenericCollectionWrapper.java
@@ -0,0 +1,107 @@
+/*-
+ * ============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.sdcrests.wrappers;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * This class represents a generic collection wrapper to be used by paginated results.
+ *
+ * @param <T> the type parameter
+ */
+public class GenericCollectionWrapper<T> implements Serializable {
+  private static final long serialVersionUID = 1L;
+
+  private List<T> results;
+  private int listCount;
+
+  /**
+   * Instantiates a new Generic collection wrapper.
+   */
+  public GenericCollectionWrapper() {
+    this.results = new ArrayList<>();
+  }
+
+  /**
+   * Instantiates a new Generic collection wrapper.
+   *
+   * @param list      the list
+   * @param listCount the list count
+   */
+  public GenericCollectionWrapper(List<T> list, int listCount) {
+    if (!list.isEmpty()) {
+      this.results = list;
+      this.listCount = listCount;
+    }
+  }
+
+  /**
+   * Gets results.
+   *
+   * @return the results
+   */
+  public List<T> getResults() {
+    return results;
+  }
+
+  /**
+   * Sets results.
+   *
+   * @param results the results
+   */
+  public void setResults(List<T> results) {
+    this.results = results;
+  }
+
+  /**
+   * Gets list count.
+   *
+   * @return the list count
+   */
+  public int getListCount() {
+    return listCount;
+  }
+
+  /**
+   * Sets list count.
+   *
+   * @param listCount the list count
+   */
+  public void setListCount(int listCount) {
+    this.listCount = listCount;
+  }
+
+  /**
+   * Add boolean.
+   *
+   * @param e0 the e 0
+   * @return the boolean
+   */
+  public boolean add(T e0) {
+    if (this.getResults().add(e0)) {
+      this.setListCount(this.getResults().size());
+      return true;
+    }
+    return false;
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/StringWrapperResponse.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/StringWrapperResponse.java
new file mode 100644
index 0000000000..d472eb9d14
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/wrappers/StringWrapperResponse.java
@@ -0,0 +1,42 @@
+/*-
+ * ============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.sdcrests.wrappers;
+
+public class StringWrapperResponse {
+  private String value;
+
+  public StringWrapperResponse() {
+  }
+
+  public StringWrapperResponse(String value) {
+    super();
+    this.value = value;
+  }
+
+  public String getValue() {
+    return value;
+  }
+
+  public void setValue(String value) {
+    this.value = value;
+  }
+
+}