/**
* Copyright 2010 JBoss Inc
*
* 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.jbpm.task.service;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.SystemEventListenerFactory;
import org.jbpm.task.AccessType;
import org.jbpm.task.AllowedToDelegate;
import org.jbpm.task.Attachment;
import org.jbpm.task.BaseTest;
import org.jbpm.task.BooleanExpression;
import org.jbpm.task.Comment;
import org.jbpm.task.Deadline;
import org.jbpm.task.Deadlines;
import org.jbpm.task.Delegation;
import org.jbpm.task.Escalation;
import org.jbpm.task.Group;
import org.jbpm.task.I18NText;
import org.jbpm.task.Notification;
import org.jbpm.task.OrganizationalEntity;
import org.jbpm.task.PeopleAssignments;
import org.jbpm.task.Reassignment;
import org.jbpm.task.Status;
import org.jbpm.task.Task;
import org.jbpm.task.TaskData;
import org.jbpm.task.User;
import org.jbpm.task.query.TaskSummary;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
import org.mvel2.MVEL;
import org.mvel2.ParserContext;
import org.mvel2.compiler.ExpressionCompiler;
public class DemoTaskService {
@SuppressWarnings("unchecked")
public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.task");
TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
TaskServiceSession taskSession = taskService.createSession();
// Add users
Map vars = new HashMap();
Reader reader = new InputStreamReader( BaseTest.class.getResourceAsStream( "LoadUsers.mvel" ) );
Map<String, User> users = ( Map<String, User> ) eval( reader, vars );
for ( User user : users.values() ) {
taskSession.addUser( user );
}
reader = new InputStreamReader( BaseTest.class.getResourceAsStream( "LoadGroups.mvel" ) );
Map<String, Group> groups = ( Map<String, Group> ) eval( reader, vars );
for ( Group group : groups.values() ) {
taskSession.addGroup( group );
}
// start server
MinaTaskServer server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
taskSession.dispose();
}
@SuppressWarnings("unchecked")
public static Object eval(Reader reader, Map vars) {
try {
return eval( toString( reader ), vars );
} catch ( IOException e ) {
throw new RuntimeException( "Exception Thrown", e );
}
}
public static String toString(Reader reader) throws IOException {
int charValue = 0;
StringBuffer sb = new StringBuffer( 1024 );
while ( (charValue = reader.read()) != -1 ) {
//result = result + (char) charValue;
sb.append( (char) charValue );
}
return sb.toString();
}
@SuppressWarnings("unchecked")
public static Object eval(String str, Map vars) {
ExpressionCompiler compiler = new ExpressionCompiler( str.trim() );
ParserContext context = new ParserContext();
context.addPackageImport( "org.drools.task" );
context.addPackageImport( "java.util" );
context.addImport( "AccessType", AccessType.class );
context.addImport( "AllowedToDelegate", AllowedToDelegate.class );
context.addImport( "Attachment", Attachment.class );
context.addImport( "BooleanExpression", BooleanExpression.class );
context.addImport( "Comment", Comment.class );
context.addImport( "Deadline", Deadline.class );
context.addImport( "Deadlines", Deadlines.class );
context.addImport( "Delegation", Delegation.class );
context.addImport( "Escalation", Escalation.class );
context.addImport( "Group", Group.class );
context.addImport( "I18NText", I18NText.class );
context.addImport( "Notification", Notification.class );
context.addImport( "OrganizationalEntity", OrganizationalEntity.class );
context.addImport( "PeopleAssignments", PeopleAssignments.class );
context.addImport( "Reassignment", Reassignment.class );
context.addImport( "Status", Status.class );
context.addImport( "Task", Task.class );
context.addImport( "TaskData", TaskData.class );
context.addImport( "TaskSummary", TaskSummary.class );
context.addImport( "User", User.class );
return MVEL.executeExpression( compiler.compile( context ), vars );
}
}