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diff --git a/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GraphLockOperation.java b/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GraphLockOperation.java
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+/*-
+ * ============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.sdc.be.model.operations.impl;
+
+import org.openecomp.sdc.be.dao.titan.TitanGenericDao;
+import org.openecomp.sdc.be.dao.titan.TitanOperationStatus;
+import org.openecomp.sdc.be.datatypes.components.ResourceMetadataDataDefinition;
+import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
+import org.openecomp.sdc.be.model.Resource;
+import org.openecomp.sdc.be.model.operations.api.ICacheMangerOperation;
+import org.openecomp.sdc.be.model.operations.api.IGraphLockOperation;
+import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
+import org.openecomp.sdc.be.resources.data.ComponentMetadataData;
+import org.openecomp.sdc.be.resources.data.ResourceMetadataData;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import fj.data.Either;
+
+@Component("graph-lock-operation")
+public class GraphLockOperation implements IGraphLockOperation {
+ private static Logger log = LoggerFactory.getLogger(ResourceOperation.class.getName());
+
+ @javax.annotation.Resource
+ private TitanGenericDao titanGenericDao;
+
+ @javax.annotation.Resource
+ private ResourceOperation resourceOperation;
+
+ @javax.annotation.Resource
+ private ICacheMangerOperation cacheManagerOperation;
+
+ public GraphLockOperation() {
+ super();
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.openecomp.sdc.be.model.operations.impl.IGraphLockOperation#
+ * lockResource(java.lang.String,
+ * org.openecomp.sdc.be.model.operations.api.IResourceOperation)
+ */
+ @Override
+ public StorageOperationStatus lockComponent(String componentId, NodeTypeEnum nodeType) {
+ log.info("lock resource with id {}", componentId);
+ TitanOperationStatus lockElementStatus = null;
+ try {
+
+ // SET LAST UPDATE DATE OF THE COMPONENT.
+ // In this way we mark the component as updated one (and component
+ // won't be fetched from cache since the component in cache has
+ // different timestamp)
+ Either<ComponentMetadataData, TitanOperationStatus> updateTime = updateModificationTimeOfComponent(
+ componentId, nodeType);
+ if (updateTime.isRight()) {
+ TitanOperationStatus operationStatus = updateTime.right().value();
+ if (operationStatus != TitanOperationStatus.OK) {
+ return DaoStatusConverter.convertTitanStatusToStorageStatus(operationStatus);
+ }
+ }
+
+ lockElementStatus = titanGenericDao.lockElement(componentId, nodeType);
+
+ } catch (Exception e) {
+ lockElementStatus = TitanOperationStatus.ALREADY_LOCKED;
+
+ }
+
+ return DaoStatusConverter.convertTitanStatusToStorageStatus(lockElementStatus);
+
+ }
+
+ /**
+ * update the last update date of the component
+ *
+ * @param componentId
+ * @param nodeType
+ * @return
+ */
+ private Either<ComponentMetadataData, TitanOperationStatus> updateModificationTimeOfComponent(String componentId,
+ NodeTypeEnum nodeType) {
+
+ if (nodeType == NodeTypeEnum.Resource || nodeType == NodeTypeEnum.Service || nodeType == NodeTypeEnum.Product) {
+ // We fetch all node since update only timestamp make problems since
+ // there is default resource type (VFC) which changes component
+ // resource type when we update only timestamp(ResourceMetadataData
+ // contains default value VFC on resourceType field).
+ Either<ComponentMetadataData, TitanOperationStatus> findComp = titanGenericDao
+ .getNode(UniqueIdBuilder.getKeyByNodeType(nodeType), componentId, ComponentMetadataData.class);
+
+ if (findComp.isRight()) {
+ return Either.right(findComp.right().value());
+ }
+ ComponentMetadataData componentMetadataData = findComp.left().value();
+ componentMetadataData.getMetadataDataDefinition().setLastUpdateDate(System.currentTimeMillis());
+ Either<ComponentMetadataData, TitanOperationStatus> updateNode = titanGenericDao
+ .updateNode(componentMetadataData, ComponentMetadataData.class);
+ return updateNode;
+ }
+ return Either.right(TitanOperationStatus.OK);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.openecomp.sdc.be.model.operations.impl.IGraphLockOperation#
+ * unlockResource(java.lang.String,
+ * org.openecomp.sdc.be.model.operations.api.IResourceOperation)
+ */
+ @Override
+ public StorageOperationStatus unlockComponent(String componentId, NodeTypeEnum nodeType) {
+
+ Either<Long, StorageOperationStatus> addComponentToCachePart1 = addComponentToCachePart1WithoutCommit(
+ componentId, nodeType);
+
+ TitanOperationStatus lockElementStatus = titanGenericDao.releaseElement(componentId, nodeType);
+
+ if (addComponentToCachePart1.isLeft()) {
+ Long lastUpdateDate = addComponentToCachePart1.left().value();
+ addComponentToCachePart2(componentId, lastUpdateDate, nodeType);
+ }
+
+ return DaoStatusConverter.convertTitanStatusToStorageStatus(lockElementStatus);
+ }
+
+ private ResourceMetadataData getResourceMetaDataFromResource(Resource resource) {
+ ResourceMetadataData resourceData = new ResourceMetadataData((ResourceMetadataDataDefinition) resource.getComponentMetadataDefinition().getMetadataDataDefinition());
+ return resourceData;
+ }
+
+ @Override
+ public StorageOperationStatus unlockComponentByName(String name, String componentId, NodeTypeEnum nodeType) {
+
+ Either<Long, StorageOperationStatus> addComponentToCachePart1 = addComponentToCachePart1WithoutCommit(
+ componentId, nodeType);
+
+ TitanOperationStatus lockElementStatus = titanGenericDao.releaseElement(name, nodeType);
+
+ if (addComponentToCachePart1.isLeft()) {
+ Long lastUpdateDate = addComponentToCachePart1.left().value();
+ addComponentToCachePart2(componentId, lastUpdateDate, nodeType);
+ }
+
+ return DaoStatusConverter.convertTitanStatusToStorageStatus(lockElementStatus);
+ }
+
+ /**
+ * We fetch the last update date of the component
+ *
+ * @param componentId
+ * @param nodeType
+ * @return
+ */
+ private Either<Long, StorageOperationStatus> addComponentToCachePart1WithoutCommit(String componentId,
+ NodeTypeEnum nodeType) {
+ if (componentId != null) { // In case of error, the componentId might be
+ // empty.
+ if (nodeType == NodeTypeEnum.Resource || nodeType == NodeTypeEnum.Service
+ || nodeType == NodeTypeEnum.Product) {
+ Long lastUpdateDate = null;
+ Either<ComponentMetadataData, StorageOperationStatus> resResult = resourceOperation
+ .getComponentByLabelAndId(componentId, nodeType, ComponentMetadataData.class);
+ if (resResult.isLeft()) {
+ ComponentMetadataData resourceMetadataData = resResult.left().value();
+ lastUpdateDate = resourceMetadataData.getMetadataDataDefinition().getLastUpdateDate();
+
+ return Either.left(lastUpdateDate);
+ } else {
+ return Either.right(resResult.right().value());
+ }
+ }
+ }
+ return Either.right(StorageOperationStatus.OPERATION_NOT_SUPPORTED);
+ }
+
+ /**
+ * add the component to the cache
+ *
+ * @param componentId
+ * @param lastUpdateDate
+ * @param nodeType
+ * @return
+ */
+ private Either<Long, StorageOperationStatus> addComponentToCachePart2(String componentId, Long lastUpdateDate,
+ NodeTypeEnum nodeType) {
+ if (componentId != null) { // In case of error, the componentId might be
+ // empty.
+ if (nodeType == NodeTypeEnum.Resource || nodeType == NodeTypeEnum.Service
+ || nodeType == NodeTypeEnum.Product) {
+ // add task to Q
+ log.debug("Going to add component {} of type {} to cache", componentId, nodeType.name().toLowerCase());
+ cacheManagerOperation.updateComponentInCache(componentId, lastUpdateDate, nodeType);
+ }
+ }
+ return Either.right(StorageOperationStatus.OPERATION_NOT_SUPPORTED);
+ }
+
+ @Override
+ public StorageOperationStatus lockComponentByName(String name, NodeTypeEnum nodeType) {
+ log.info("lock resource with name {}", name);
+ TitanOperationStatus lockElementStatus = null;
+ try {
+
+ lockElementStatus = titanGenericDao.lockElement(name, nodeType);
+
+ } catch (Exception e) {
+ lockElementStatus = TitanOperationStatus.ALREADY_LOCKED;
+
+ }
+
+ return DaoStatusConverter.convertTitanStatusToStorageStatus(lockElementStatus);
+
+ }
+}