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org.camunda.bpm.engine.rest.impl.ExternalTaskRestServiceImpl Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.rest.impl;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.core.Response.Status;
import org.camunda.bpm.engine.BadUserRequestException;
import org.camunda.bpm.engine.ExternalTaskService;
import org.camunda.bpm.engine.ProcessEngine;
import org.camunda.bpm.engine.batch.Batch;
import org.camunda.bpm.engine.exception.NotFoundException;
import org.camunda.bpm.engine.externaltask.ExternalTask;
import org.camunda.bpm.engine.externaltask.ExternalTaskQuery;
import org.camunda.bpm.engine.externaltask.ExternalTaskQueryBuilder;
import org.camunda.bpm.engine.externaltask.LockedExternalTask;
import org.camunda.bpm.engine.externaltask.UpdateExternalTaskRetriesBuilder;
import org.camunda.bpm.engine.history.HistoricProcessInstanceQuery;
import org.camunda.bpm.engine.rest.ExternalTaskRestService;
import org.camunda.bpm.engine.rest.dto.CountResultDto;
import org.camunda.bpm.engine.rest.dto.batch.BatchDto;
import org.camunda.bpm.engine.rest.dto.externaltask.ExternalTaskDto;
import org.camunda.bpm.engine.rest.dto.externaltask.ExternalTaskQueryDto;
import org.camunda.bpm.engine.rest.dto.externaltask.FetchExternalTasksDto;
import org.camunda.bpm.engine.rest.dto.history.HistoricProcessInstanceQueryDto;
import org.camunda.bpm.engine.rest.dto.runtime.ProcessInstanceQueryDto;
import org.camunda.bpm.engine.rest.exception.InvalidRequestException;
import org.camunda.bpm.engine.rest.dto.externaltask.LockedExternalTaskDto;
import org.camunda.bpm.engine.rest.dto.externaltask.SetRetriesForExternalTasksDto;
import org.camunda.bpm.engine.rest.sub.externaltask.ExternalTaskResource;
import org.camunda.bpm.engine.rest.sub.externaltask.impl.ExternalTaskResourceImpl;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.camunda.bpm.engine.runtime.ProcessInstanceQuery;
/**
* @author Thorben Lindhauer
*
*/
public class ExternalTaskRestServiceImpl extends AbstractRestProcessEngineAware implements ExternalTaskRestService {
public ExternalTaskRestServiceImpl(String processEngine, ObjectMapper objectMapper) {
super(processEngine, objectMapper);
}
@Override
public List getExternalTasks(UriInfo uriInfo, Integer firstResult, Integer maxResults) {
ExternalTaskQueryDto queryDto = new ExternalTaskQueryDto(getObjectMapper(), uriInfo.getQueryParameters());
return queryExternalTasks(queryDto, firstResult, maxResults);
}
@Override
public List queryExternalTasks(ExternalTaskQueryDto queryDto, Integer firstResult, Integer maxResults) {
ProcessEngine engine = getProcessEngine();
queryDto.setObjectMapper(getObjectMapper());
ExternalTaskQuery query = queryDto.toQuery(engine);
List matchingTasks;
if (firstResult != null || maxResults != null) {
matchingTasks = executePaginatedQuery(query, firstResult, maxResults);
} else {
matchingTasks = query.list();
}
List taskResults = new ArrayList();
for (ExternalTask task : matchingTasks) {
ExternalTaskDto resultInstance = ExternalTaskDto.fromExternalTask(task);
taskResults.add(resultInstance);
}
return taskResults;
}
protected List executePaginatedQuery(ExternalTaskQuery query, Integer firstResult, Integer maxResults) {
if (firstResult == null) {
firstResult = 0;
}
if (maxResults == null) {
maxResults = Integer.MAX_VALUE;
}
return query.listPage(firstResult, maxResults);
}
@Override
public CountResultDto getExternalTasksCount(UriInfo uriInfo) {
ExternalTaskQueryDto queryDto = new ExternalTaskQueryDto(getObjectMapper(), uriInfo.getQueryParameters());
return queryExternalTasksCount(queryDto);
}
@Override
public CountResultDto queryExternalTasksCount(ExternalTaskQueryDto queryDto) {
ProcessEngine engine = getProcessEngine();
queryDto.setObjectMapper(getObjectMapper());
ExternalTaskQuery query = queryDto.toQuery(engine);
long count = query.count();
CountResultDto result = new CountResultDto();
result.setCount(count);
return result;
}
@Override
public List fetchAndLock(FetchExternalTasksDto fetchingDto) {
ExternalTaskQueryBuilder fetchBuilder = fetchingDto.buildQuery(processEngine);
List externalTasks = fetchBuilder.execute();
return LockedExternalTaskDto.fromLockedExternalTasks(externalTasks);
}
@Override
public ExternalTaskResource getExternalTask(String externalTaskId) {
return new ExternalTaskResourceImpl(getProcessEngine(), externalTaskId, getObjectMapper());
}
@Override
public BatchDto setRetriesAsync(SetRetriesForExternalTasksDto retriesDto) {
UpdateExternalTaskRetriesBuilder builder = updateRetries(retriesDto);
Integer retries = retriesDto.getRetries();
if (retries == null) {
throw new InvalidRequestException(Status.BAD_REQUEST, "The number of retries cannot be null.");
}
try {
Batch batch = builder.setAsync(retries);
return BatchDto.fromBatch(batch);
}
catch (NotFoundException e) {
throw new InvalidRequestException(Status.NOT_FOUND, e.getMessage());
}
catch (BadUserRequestException e) {
throw new InvalidRequestException(Status.BAD_REQUEST, e.getMessage());
}
}
@Override
public List getTopicNames(boolean withLockedTasks, boolean withUnlockedTasks,
boolean withRetriesLeft) {
return processEngine.getExternalTaskService()
.getTopicNames(withLockedTasks, withUnlockedTasks, withRetriesLeft);
}
@Override
public void setRetries(SetRetriesForExternalTasksDto retriesDto){
UpdateExternalTaskRetriesBuilder builder = updateRetries(retriesDto);
Integer retries = retriesDto.getRetries();
if (retries == null) {
throw new InvalidRequestException(Status.BAD_REQUEST, "The number of retries cannot be null.");
}
try {
builder.set(retries);
}
catch (NotFoundException e) {
throw new InvalidRequestException(Status.NOT_FOUND, e.getMessage());
}
catch (BadUserRequestException e) {
throw new InvalidRequestException(Status.BAD_REQUEST, e.getMessage());
}
}
protected UpdateExternalTaskRetriesBuilder updateRetries(SetRetriesForExternalTasksDto retriesDto) {
ExternalTaskService externalTaskService = getProcessEngine().getExternalTaskService();
List externalTaskIds = retriesDto.getExternalTaskIds();
List processInstanceIds = retriesDto.getProcessInstanceIds();
ExternalTaskQuery externalTaskQuery = null;
ProcessInstanceQuery processInstanceQuery = null;
HistoricProcessInstanceQuery historicProcessInstanceQuery = null;
ExternalTaskQueryDto externalTaskQueryDto = retriesDto.getExternalTaskQuery();
if (externalTaskQueryDto != null) {
externalTaskQuery = externalTaskQueryDto.toQuery(getProcessEngine());
}
ProcessInstanceQueryDto processInstanceQueryDto = retriesDto.getProcessInstanceQuery();
if (processInstanceQueryDto != null) {
processInstanceQuery = processInstanceQueryDto.toQuery(getProcessEngine());
}
HistoricProcessInstanceQueryDto historicProcessInstanceQueryDto = retriesDto.getHistoricProcessInstanceQuery();
if (historicProcessInstanceQueryDto != null) {
historicProcessInstanceQuery = historicProcessInstanceQueryDto.toQuery(getProcessEngine());
}
return externalTaskService.updateRetries()
.externalTaskIds(externalTaskIds)
.processInstanceIds(processInstanceIds)
.externalTaskQuery(externalTaskQuery)
.processInstanceQuery(processInstanceQuery)
.historicProcessInstanceQuery(historicProcessInstanceQuery);
}
}