/* 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.history;
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.history.HistoricActivityInstance;
import org.camunda.bpm.engine.history.HistoricActivityInstanceQuery;
import org.camunda.bpm.engine.rest.dto.CountResultDto;
import org.camunda.bpm.engine.rest.dto.history.HistoricActivityInstanceDto;
import org.camunda.bpm.engine.rest.dto.history.HistoricActivityInstanceQueryDto;
import org.camunda.bpm.engine.rest.history.HistoricActivityInstanceRestService;
import org.camunda.bpm.engine.rest.sub.history.HistoricActivityInstanceResource;
import org.camunda.bpm.engine.rest.sub.history.impl.HistoricActivityInstanceResourceImpl;
import org.codehaus.jackson.map.ObjectMapper;
public class HistoricActivityInstanceRestServiceImpl implements HistoricActivityInstanceRestService {
protected ObjectMapper objectMapper;
protected ProcessEngine processEngine;
public HistoricActivityInstanceRestServiceImpl(ObjectMapper objectMapper, ProcessEngine processEngine) {
this.objectMapper = objectMapper;
this.processEngine = processEngine;
}
public HistoricActivityInstanceResource getHistoricCaseInstance(String activityInstanceId) {
return new HistoricActivityInstanceResourceImpl(processEngine, activityInstanceId);
}
@Override
public List<HistoricActivityInstanceDto> getHistoricActivityInstances(UriInfo uriInfo, Integer firstResult, Integer maxResults) {
HistoricActivityInstanceQueryDto queryHistoricActivityInstanceDto = new HistoricActivityInstanceQueryDto(objectMapper, uriInfo.getQueryParameters());
return queryHistoricActivityInstances(queryHistoricActivityInstanceDto, firstResult, maxResults);
}
@Override
public List<HistoricActivityInstanceDto> queryHistoricActivityInstances(HistoricActivityInstanceQueryDto queryDto, Integer firstResult, Integer maxResults) {
queryDto.setObjectMapper(objectMapper);
HistoricActivityInstanceQuery query = queryDto.toQuery(processEngine);
List<HistoricActivityInstance> matchingHistoricActivityInstances;
if (firstResult != null || maxResults != null) {
matchingHistoricActivityInstances = executePaginatedQuery(query, firstResult, maxResults);
} else {
matchingHistoricActivityInstances = query.list();
}
List<HistoricActivityInstanceDto> historicActivityInstanceResults = new ArrayList<HistoricActivityInstanceDto>();
for (HistoricActivityInstance historicActivityInstance : matchingHistoricActivityInstances) {
HistoricActivityInstanceDto resultHistoricActivityInstance = HistoricActivityInstanceDto.fromHistoricActivityInstance(historicActivityInstance);
historicActivityInstanceResults.add(resultHistoricActivityInstance);
}
return historicActivityInstanceResults;
}
private List<HistoricActivityInstance> executePaginatedQuery(HistoricActivityInstanceQuery 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 getHistoricActivityInstancesCount(UriInfo uriInfo) {
HistoricActivityInstanceQueryDto queryDto = new HistoricActivityInstanceQueryDto(objectMapper, uriInfo.getQueryParameters());
return queryHistoricActivityInstancesCount(queryDto);
}
@Override
public CountResultDto queryHistoricActivityInstancesCount(HistoricActivityInstanceQueryDto queryDto) {
queryDto.setObjectMapper(objectMapper);
HistoricActivityInstanceQuery query = queryDto.toQuery(processEngine);
long count = query.count();
CountResultDto result = new CountResultDto();
result.setCount(count);
return result;
}
}