/* 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.explorer.ui.process.listener;
import java.util.List;
import org.activiti.engine.FormService;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.form.StartFormData;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.activiti.explorer.ExplorerApp;
import org.activiti.explorer.Messages;
import org.activiti.explorer.NotificationManager;
import org.activiti.explorer.ui.process.ProcessDefinitionPage;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
/**
* @author Frederik Heremans
* @author Joram Barrez
*/
public class StartProcessInstanceClickListener implements ClickListener {
private static final long serialVersionUID = 1L;
protected transient RuntimeService runtimeService;
protected transient TaskService taskService;
protected transient FormService formService;
protected NotificationManager notificationManager;
protected ProcessDefinition processDefinition;
protected ProcessDefinitionPage parentPage;
public StartProcessInstanceClickListener(ProcessDefinition processDefinition, ProcessDefinitionPage processDefinitionPage) {
this.runtimeService = ProcessEngines.getDefaultProcessEngine().getRuntimeService();
this.taskService = ProcessEngines.getDefaultProcessEngine().getTaskService();
this.formService = ProcessEngines.getDefaultProcessEngine().getFormService();
this.notificationManager = ExplorerApp.get().getNotificationManager();
this.processDefinition = processDefinition;
this.parentPage = processDefinitionPage;
}
public void buttonClick(ClickEvent event) {
// Check if process-definition defines a start-form
StartFormData startFormData = formService.getStartFormData(processDefinition.getId());
if(startFormData != null && ((startFormData.getFormProperties() != null && !startFormData.getFormProperties().isEmpty()) || startFormData.getFormKey() != null)) {
parentPage.showStartForm(processDefinition, startFormData);
} else {
// Just start the process-instance since it has no form.
// TODO: Error handling
ProcessInstance processInstance = runtimeService.startProcessInstanceById(processDefinition.getId());
// Show notification of success
notificationManager.showInformationNotification(Messages.PROCESS_STARTED_NOTIFICATION, getProcessDisplayName(processDefinition));
// Switch to inbox page in case a task of this process was created
List<Task> loggedInUsersTasks = taskService.createTaskQuery()
.taskAssignee(ExplorerApp.get().getLoggedInUser().getId())
.processInstanceId(processInstance.getId())
.list();
if (!loggedInUsersTasks.isEmpty()) {
ExplorerApp.get().getViewManager().showInboxPage(loggedInUsersTasks.get(0).getId());
}
}
}
protected String getProcessDisplayName(ProcessDefinition processDefinition) {
if(processDefinition.getName() != null) {
return processDefinition.getName();
} else {
return processDefinition.getKey();
}
}
}