/* ****************************************************************************
* CIShell: Cyberinfrastructure Shell, An Algorithm Integration Framework.
*
* All rights reserved. This program and the accompanying materials are made
* available under the terms of the Apache License v2.0 which accompanies
* this distribution, and is available at:
* http://www.apache.org/licenses/LICENSE-2.0.html
*
* Created on Jul 10, 2006 at Indiana University.
*
* Contributors:
* Indiana University -
* ***************************************************************************/
package org.cishell.reference.remoting.frontend;
import java.util.Dictionary;
import org.cishell.framework.CIShellContext;
import org.cishell.framework.algorithm.Algorithm;
import org.cishell.framework.algorithm.AlgorithmFactory;
import org.cishell.framework.data.Data;
import org.osgi.framework.BundleContext;
import org.osgi.service.component.ComponentContext;
import org.osgi.service.metatype.MetaTypeProvider;
import org.osgi.service.metatype.MetaTypeService;
public class CIShellClientAlg implements AlgorithmFactory {
private BundleContext bContext;
private MetaTypeProvider provider;
protected void activate(ComponentContext ctxt) {
bContext = ctxt.getBundleContext();
MetaTypeService mts = (MetaTypeService)ctxt.locateService("MTS");
provider = mts.getMetaTypeInformation(ctxt.getBundleContext().getBundle());
}
protected void deactivate(ComponentContext ctxt) {
bContext = null;
provider = null;
}
/**
* @see org.cishell.framework.algorithm.AlgorithmFactory#createAlgorithm(org.cishell.framework.data.Data[], java.util.Dictionary, org.cishell.framework.CIShellContext)
*/
public Algorithm createAlgorithm(Data[] dm, final Dictionary parameters,
final CIShellContext context) {
Algorithm alg = new Algorithm() {
public Data[] execute() {
String host = (String) parameters.get("org.cishell.reference.remoting.frontend.client.host");
int port = ((Integer) parameters.get("org.cishell.reference.remoting.frontend.client.port")).intValue();
new ClientInstanceAlg(bContext, context).connect(host, port);
return null;
}};
return alg;
}
/**
* @see org.cishell.framework.algorithm.AlgorithmFactory#createParameters(org.cishell.framework.data.Data[])
*/
public MetaTypeProvider createParameters(Data[] dm) {
return provider;
}
}