/* 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.activiti.rest.api.task;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import org.activiti.engine.ActivitiException;
import org.activiti.rest.api.ActivitiUtil;
import org.activiti.rest.api.SecuredResource;
import org.restlet.representation.InputRepresentation;
import org.restlet.resource.Get;
/**
* @author Tijs Rademakers
*/
public class TaskFormResource extends SecuredResource {
@Get
public InputRepresentation getTaskForm() {
if(authenticate() == false) return null;
String taskId = (String) getRequest().getAttributes().get("taskId");
Object form = ActivitiUtil.getFormService().getRenderedTaskForm(taskId);
InputStream is = null;
if (form != null && form instanceof String) {
is = new ByteArrayInputStream(((String) form).getBytes());
}
else if (form != null && form instanceof InputStream) {
is = (InputStream) form;
}
if (is != null) {
InputRepresentation output = new InputRepresentation(is);
return output;
} else if (form != null){
throw new ActivitiException("The form for task '" + taskId + "' cannot be rendered using the rest api.");
} else {
throw new ActivitiException("There is no form for task '" + taskId + "'.");
}
}
}