/* 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.camunda.bpm.engine.rest.impl;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.core.UriInfo;
import org.camunda.bpm.engine.ProcessEngine;
import org.camunda.bpm.engine.rest.CaseInstanceRestService;
import org.camunda.bpm.engine.rest.dto.CountResultDto;
import org.camunda.bpm.engine.rest.dto.runtime.CaseInstanceDto;
import org.camunda.bpm.engine.rest.dto.runtime.CaseInstanceQueryDto;
import org.camunda.bpm.engine.rest.sub.runtime.CaseInstanceResource;
import org.camunda.bpm.engine.rest.sub.runtime.impl.CaseInstanceResourceImpl;
import org.camunda.bpm.engine.runtime.CaseInstance;
import org.camunda.bpm.engine.runtime.CaseInstanceQuery;
import org.codehaus.jackson.map.ObjectMapper;
/**
* @author Roman Smirnov
*
*/
public class CaseInstanceRestServiceImpl extends AbstractRestProcessEngineAware implements CaseInstanceRestService {
public CaseInstanceRestServiceImpl(String engineName, ObjectMapper objectMapper) {
super(engineName, objectMapper);
}
public CaseInstanceResource getCaseInstance(String caseInstanceId) {
return new CaseInstanceResourceImpl(getProcessEngine(), caseInstanceId, getObjectMapper());
}
public List<CaseInstanceDto> getCaseInstances(UriInfo uriInfo, Integer firstResult, Integer maxResults) {
CaseInstanceQueryDto queryDto = new CaseInstanceQueryDto(getObjectMapper(), uriInfo.getQueryParameters());
return queryCaseInstances(queryDto, firstResult, maxResults);
}
public List<CaseInstanceDto> queryCaseInstances(CaseInstanceQueryDto queryDto, Integer firstResult, Integer maxResults) {
ProcessEngine engine = getProcessEngine();
queryDto.setObjectMapper(getObjectMapper());
CaseInstanceQuery query = queryDto.toQuery(engine);
List<CaseInstance> matchingInstances;
if (firstResult != null || maxResults != null) {
matchingInstances = executePaginatedQuery(query, firstResult, maxResults);
} else {
matchingInstances = query.list();
}
List<CaseInstanceDto> instanceResults = new ArrayList<CaseInstanceDto>();
for (CaseInstance instance : matchingInstances) {
CaseInstanceDto resultInstance = CaseInstanceDto.fromCaseInstance(instance);
instanceResults.add(resultInstance);
}
return instanceResults;
}
private List<CaseInstance> executePaginatedQuery(CaseInstanceQuery query, Integer firstResult, Integer maxResults) {
if (firstResult == null) {
firstResult = 0;
}
if (maxResults == null) {
maxResults = Integer.MAX_VALUE;
}
return query.listPage(firstResult, maxResults);
}
public CountResultDto getCaseInstancesCount(UriInfo uriInfo) {
CaseInstanceQueryDto queryDto = new CaseInstanceQueryDto(getObjectMapper(), uriInfo.getQueryParameters());
return queryCaseInstancesCount(queryDto);
}
public CountResultDto queryCaseInstancesCount(CaseInstanceQueryDto queryDto) {
ProcessEngine engine = getProcessEngine();
queryDto.setObjectMapper(getObjectMapper());
CaseInstanceQuery query = queryDto.toQuery(engine);
long count = query.count();
CountResultDto result = new CountResultDto();
result.setCount(count);
return result;
}
}