/*
* Copyright 1999-2008 University of Chicago
*
* 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.nimbustools.messaging.gt4_0.status;
import org.globus.wsrf.impl.SingletonResourceHome;
import org.globus.wsrf.jndi.Initializable;
import org.globus.wsrf.Resource;
import org.globus.wsrf.ResourceException;
import org.nimbustools.messaging.gt4_0.common.NimbusLocalMasterContext;
import org.nimbustools.messaging.gt4_0.common.NimbusMasterContext;
import org.nimbustools.messaging.gt4_0.service.InstanceTranslate;
import org.nimbustools.api.services.rm.Manager;
import org.nimbustools.api.repr.ReprFactory;
import java.net.URL;
import java.io.IOException;
public class StatusHome extends SingletonResourceHome
implements Initializable {
// -------------------------------------------------------------------------
// INSTANCE VARIABLES
// -------------------------------------------------------------------------
private NimbusMasterContext master;
// -------------------------------------------------------------------------
// implements Initializable
// -------------------------------------------------------------------------
public void initialize() throws Exception {
this.master = NimbusLocalMasterContext.discoverApplicationContext();
// instantiate resource and cause SingletonResourceHome to cache
// the reference, this.findSingleton() is called
find(null);
}
// -------------------------------------------------------------------------
// extends SingletonResourceHome
// -------------------------------------------------------------------------
protected Resource findSingleton() throws ResourceException {
if (this.master == null) {
throw new ResourceException(
"StatusHome not initialized properly, no master context");
}
// some room for internal IoC in the future
final Manager mgr = this.master.getModuleLocator().getManager();
final ReprFactory repr =
this.master.getModuleLocator().getReprFactory();
final URL baseURL;
try {
baseURL = this.master.getBaseURL();
} catch (IOException e) {
final String err =
"Problem finding base container URL: " + e.getMessage();
throw new ResourceException(err, e);
}
final InstanceTranslate trInstance =
new InstanceTranslate(repr, baseURL);
final StatusTranslate translate = new StatusTranslate(repr, trInstance);
return new StatusResource(mgr, translate);
}
}