/* 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.sub.runtime.impl;
import javax.ws.rs.core.Response.Status;
import org.camunda.bpm.engine.ProcessEngine;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.RuntimeService;
import org.camunda.bpm.engine.rest.dto.VariableValueDto;
import org.camunda.bpm.engine.rest.dto.runtime.EventSubscriptionDto;
import org.camunda.bpm.engine.rest.dto.runtime.ExecutionTriggerDto;
import org.camunda.bpm.engine.rest.exception.InvalidRequestException;
import org.camunda.bpm.engine.rest.exception.RestException;
import org.camunda.bpm.engine.rest.sub.runtime.EventSubscriptionResource;
import org.camunda.bpm.engine.runtime.EventSubscription;
import org.camunda.bpm.engine.variable.VariableMap;
import org.codehaus.jackson.map.ObjectMapper;
public class MessageEventSubscriptionResource implements EventSubscriptionResource {
protected static final String MESSAGE_EVENT_TYPE = "message";
protected ProcessEngine engine;
protected String executionId;
protected String messageName;
protected ObjectMapper objectMapper;
public MessageEventSubscriptionResource(ProcessEngine engine, String executionId, String messageName, ObjectMapper objectMapper) {
this.engine = engine;
this.executionId = executionId;
this.messageName = messageName;
this.objectMapper = objectMapper;
}
@Override
public EventSubscriptionDto getEventSubscription() {
RuntimeService runtimeService = engine.getRuntimeService();
EventSubscription eventSubscription = runtimeService.createEventSubscriptionQuery()
.executionId(executionId).eventName(messageName).eventType(MESSAGE_EVENT_TYPE).singleResult();
if (eventSubscription == null) {
String errorMessage = String.format("Message event subscription for execution %s named %s does not exist", executionId, messageName);
throw new InvalidRequestException(Status.NOT_FOUND, errorMessage);
}
return EventSubscriptionDto.fromEventSubscription(eventSubscription);
}
@Override
public void triggerEvent(ExecutionTriggerDto triggerDto) {
RuntimeService runtimeService = engine.getRuntimeService();
try {
VariableMap variables = VariableValueDto.toMap(triggerDto.getVariables(), engine, objectMapper);
runtimeService.messageEventReceived(messageName, executionId, variables);
} catch (ProcessEngineException e) {
throw new RestException(Status.INTERNAL_SERVER_ERROR, e, String.format("Cannot trigger message %s for execution %s: %s",
messageName, executionId, e.getMessage()));
} catch (RestException e) {
String errorMessage = String.format("Cannot trigger message %s for execution %s: %s", messageName, executionId, e.getMessage());
throw new InvalidRequestException(e.getStatus(), e, errorMessage);
}
}
}