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/*
* Copyright © 2018 European Support Limited
*
* 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.sdc.workflow.services.impl;
import static org.onap.sdc.workflow.services.types.PagingConstants.DEFAULT_LIMIT;
import static org.onap.sdc.workflow.services.types.PagingConstants.DEFAULT_OFFSET;
import static org.onap.sdc.workflow.services.types.PagingConstants.MAX_LIMIT;
import java.util.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import org.onap.sdc.workflow.persistence.types.Workflow;
import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
import org.onap.sdc.workflow.services.UniqueValueService;
import org.onap.sdc.workflow.services.WorkflowManager;
import org.onap.sdc.workflow.services.exceptions.EntityNotFoundException;
import org.onap.sdc.workflow.services.impl.mappers.VersionStateMapper;
import org.onap.sdc.workflow.services.impl.mappers.WorkflowMapper;
import org.onap.sdc.workflow.services.types.Page;
import org.onap.sdc.workflow.services.types.PagingRequest;
import org.onap.sdc.workflow.services.types.RequestSpec;
import org.onap.sdc.workflow.services.types.Sort;
import org.onap.sdc.workflow.services.types.SortingRequest;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
import org.openecomp.sdc.versioning.ItemManager;
import org.openecomp.sdc.versioning.dao.types.VersionStatus;
import org.openecomp.sdc.versioning.types.Item;
import org.openecomp.sdc.versioning.types.ItemStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
@Service("workflowManager")
public class WorkflowManagerImpl implements WorkflowManager {
public static final String WORKFLOW_TYPE = "WORKFLOW";
private static final String WORKFLOW_NOT_FOUND_ERROR_MSG = "Workflow with id '%s' does not exist";
private static final String WORKFLOW_NAME_UNIQUE_TYPE = "WORKFLOW_NAME";
private static final Predicate<Item> WORKFLOW_ITEM_FILTER = item -> WORKFLOW_TYPE.equals(item.getType());
private static final String WORKSPACES_SORT_PROPERTY = "name";
private static final RequestSpec WORKSPACES_DEFAULT_REQUEST_SPEC =
new RequestSpec(new PagingRequest(DEFAULT_OFFSET, DEFAULT_LIMIT),
SortingRequest.builder().sort(new Sort(WORKSPACES_SORT_PROPERTY, true)).build());
private static final Logger LOGGER = LoggerFactory.getLogger(WorkflowManagerImpl.class);
private final ItemManager itemManager;
private final UniqueValueService uniqueValueService;
private final WorkflowMapper workflowMapper;
private final VersionStateMapper versionStateMapper;
@Autowired
public WorkflowManagerImpl(ItemManager itemManager,
@Qualifier("uniqueValueService") UniqueValueService uniqueValueService, WorkflowMapper workflowMapper,
VersionStateMapper versionStateMapper) {
this.itemManager = itemManager;
this.uniqueValueService = uniqueValueService;
this.workflowMapper = workflowMapper;
this.versionStateMapper = versionStateMapper;
}
@Override
public Page<Workflow> list(Set<WorkflowVersionState> versionStatesFilter, RequestSpec requestSpec) {
requestSpec = getRequestSpec(requestSpec);
Set<VersionStatus> versionStatusesFilter =
versionStatesFilter == null ? null :
versionStatesFilter.stream().map(versionStateMapper::workflowVersionStateToVersionStatus)
.collect(Collectors.toSet());
Collection<Item> workflowItems = itemManager.list(getFilter(versionStatusesFilter));
List<Workflow> workflowsSlice = workflowItems.stream().map(workflowMapper::itemToWorkflow)
.sorted(getWorkflowComparator(requestSpec.getSorting()))
.skip(requestSpec.getPaging().getOffset())
.limit(requestSpec.getPaging().getLimit())
.collect(Collectors.toList());
return new Page<>(workflowsSlice, requestSpec.getPaging(), workflowItems.size());
}
@Override
public Workflow get(Workflow workflow) {
Item retrievedItem = itemManager.get(workflow.getId());
if (retrievedItem == null) {
LOGGER.error(String.format("Workflow with id %s was not found", workflow.getId()));
throw new EntityNotFoundException(String.format(WORKFLOW_NOT_FOUND_ERROR_MSG, workflow.getId()));
}
return this.workflowMapper.itemToWorkflow(retrievedItem);
}
@Override
public Workflow create(Workflow workflow) {
Item item = workflowMapper.workflowToItem(workflow);
item.setStatus(ItemStatus.ACTIVE);
uniqueValueService.validateUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, new String[] {workflow.getName()});
Item createdItem = itemManager.create(item);
uniqueValueService.createUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, new String[] {workflow.getName()});
return workflowMapper.itemToWorkflow(createdItem);
}
@Override
public void update(Workflow workflow) {
Item retrievedItem = itemManager.get(workflow.getId());
if (retrievedItem == null) {
LOGGER.error(String.format("Workflow with id %s was not found", workflow.getId()));
throw new EntityNotFoundException(String.format(WORKFLOW_NOT_FOUND_ERROR_MSG, workflow.getId()));
}
uniqueValueService.updateUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, retrievedItem.getName(), workflow.getName());
Item item = workflowMapper.workflowToItem(workflow);
item.setId(workflow.getId());
item.setStatus(retrievedItem.getStatus());
item.setVersionStatusCounters(retrievedItem.getVersionStatusCounters());
itemManager.update(item);
}
private RequestSpec getRequestSpec(RequestSpec requestSpec) {
if (requestSpec == null) {
return WORKSPACES_DEFAULT_REQUEST_SPEC;
}
if (requestSpec.getPaging() == null) {
requestSpec.setPaging(WORKSPACES_DEFAULT_REQUEST_SPEC.getPaging());
} else if (requestSpec.getPaging().getLimit() > MAX_LIMIT) {
requestSpec.getPaging().setLimit(MAX_LIMIT);
}
if (requestSpec.getSorting() == null) {
requestSpec.setSorting(WORKSPACES_DEFAULT_REQUEST_SPEC.getSorting());
}
return requestSpec;
}
private Comparator<Workflow> getWorkflowComparator(SortingRequest sorting) {
Boolean byNameAscending = sorting.getSorts().stream()
.filter(sort -> WORKSPACES_SORT_PROPERTY.equalsIgnoreCase(sort.getProperty()))
.findFirst().map(Sort::isAscendingOrder).orElse(true);
Comparator<Workflow> byName = Comparator.comparing(Workflow::getName);
return byNameAscending ? byName : byName.reversed();
}
private static Predicate<Item> getFilter(Set<VersionStatus> versionStatuses) {
return WORKFLOW_ITEM_FILTER
.and(item -> versionStatuses == null || item.getVersionStatusCounters().keySet().stream()
.anyMatch(versionStatuses::contains));
}
}
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