/*
* 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.jboss.bpm.console.server.plugin.TaskDispatcherPlugin;
import org.jboss.bpm.console.server.plugin.PluginMgr;
import org.jboss.bpm.console.server.plugin.GraphViewerPlugin;
import org.jboss.bpm.console.server.gson.GsonFactory;
import org.jboss.bpm.console.client.model.ServerStatus;
import org.jboss.bpm.console.client.model.PluginInfo;
import javax.ws.rs.Path;
import javax.ws.rs.GET;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import com.google.gson.Gson;
/**
* @author Heiko.Braun <heiko.braun@jboss.com>
*/
@Path("server")
public class InfoFacade
{
private Class[] pluginInterfaces = {
TaskDispatcherPlugin.class,
GraphViewerPlugin.class
};
private ServerStatus status = null;
@GET
@Path("status")
@Produces("application/json")
public Response getServerInfo()
{
ServerStatus status = getServerStatus();
return createJsonResponse(status);
}
private ServerStatus getServerStatus()
{
if(null==this.status) // expensive to create
{
this.status = new ServerStatus();
for(Class type : pluginInterfaces)
{
Object impl = PluginMgr.load(type);
boolean isAvailable = (impl!=null);
status.getPlugins().add(new PluginInfo(type.getName(), isAvailable));
}
}
return status;
}
private Response createJsonResponse(Object wrapper)
{
Gson gson = GsonFactory.createInstance();
String json = gson.toJson(wrapper);
return Response.ok(json).type("application/json").build();
}
}