org.jboss.bpm.console.server.TaskMgmtFacade.java Source code

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Here is the source code for org.jboss.bpm.console.server.TaskMgmtFacade.java

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.bpm.console.server;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jboss.bpm.console.server.integration.ManagementFactory;
import org.jboss.bpm.console.server.integration.TaskManagement;
import org.jboss.bpm.console.server.plugin.FormDispatcherPlugin;
import org.jboss.bpm.console.server.plugin.PluginMgr;
import org.jboss.bpm.console.server.util.ProjectName;
import org.jboss.bpm.console.server.util.RsComment;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

/**
 * REST server module for accessing task related data.
 *
 * @author Heiko.Braun <heiko.braun@jboss.com>
 */
@Path("task")
@RsComment(title = "Task Management", description = "Manage task instances", project = { ProjectName.JBPM })
public class TaskMgmtFacade {
    private static final Log log = LogFactory.getLog(TaskMgmtFacade.class);

    private TaskManagement taskManagement;

    private FormDispatcherPlugin formPlugin;

    /**
     * Lazy load the {@link org.jboss.bpm.console.server.integration.TaskManagement}
     */
    private TaskManagement getTaskManagement() {
        if (null == this.taskManagement) {
            ManagementFactory factory = ManagementFactory.newInstance();
            this.taskManagement = factory.createTaskManagement();
            log.debug("Using ManagementFactory impl:" + factory.getClass().getName());
        }

        return this.taskManagement;
    }

    /**
     * Lazy load the {@link org.jboss.bpm.console.server.integration.TaskManagement}
     */
    @SuppressWarnings("unused")
    private FormDispatcherPlugin getFormDispatcherPlugin() {
        if (null == this.formPlugin) {
            this.formPlugin = PluginMgr.load(FormDispatcherPlugin.class);
            log.debug("Using FormDispatcherPlugin impl:" + this.formPlugin);
        }

        return this.formPlugin;
    }

    @POST
    @Path("{taskId}/assign/{ifRef}")
    @Produces("application/json")
    public Response assignTask(@Context HttpServletRequest request, @PathParam("taskId") long taskId,
            @PathParam("ifRef") String idRef) {
        log.debug("Assign task " + taskId + " to '" + idRef + "'");
        getTaskManagement().assignTask(taskId, idRef, request.getUserPrincipal().getName());
        return Response.ok().build();
    }

    @POST
    @Path("{taskId}/release")
    @Produces("application/json")
    public Response releaseTask(@Context HttpServletRequest request, @PathParam("taskId") long taskId) {
        log.debug("Release task " + taskId);
        getTaskManagement().assignTask(taskId, null, request.getUserPrincipal().getName());
        return Response.ok().build();
    }

    @POST
    @Path("{taskId}/close")
    @Produces("application/json")
    public Response closeTask(@Context HttpServletRequest request, @PathParam("taskId") long taskId) {
        log.debug("Close task " + taskId);
        getTaskManagement().completeTask(taskId, null, request.getUserPrincipal().getName());
        return Response.ok().build();
    }

    @POST
    @Path("{taskId}/close/{outcome}")
    @Produces("application/json")
    public Response closeTaskWithSignal(@Context HttpServletRequest request, @PathParam("taskId") long taskId,
            @QueryParam("outcome") String outcome) {
        log.debug("Close task " + taskId + " outcome " + outcome);
        getTaskManagement().completeTask(taskId, outcome, null, request.getUserPrincipal().getName());
        return Response.ok().build();
    }

}