eu.planets_project.tb.impl.services.wrappers.IdentifyWrapper.java Source code

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Here is the source code for eu.planets_project.tb.impl.services.wrappers.IdentifyWrapper.java

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/*******************************************************************************
 * Copyright (c) 2007, 2010 The Planets Project Partners.
 *
 * All rights reserved. This program and the accompanying 
 * materials are made available under the terms of the 
 * Apache License, Version 2.0 which accompanies 
 * this distribution, and is available at 
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 *******************************************************************************/
/**
 * 
 */
package eu.planets_project.tb.impl.services.wrappers;

import java.net.URL;
import java.util.List;

import javax.xml.ws.Service;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import eu.planets_project.services.datatypes.DigitalObject;
import eu.planets_project.services.datatypes.Parameter;
import eu.planets_project.services.datatypes.ServiceDescription;
import eu.planets_project.services.identify.Identify;
import eu.planets_project.services.identify.IdentifyResult;
import eu.planets_project.tb.impl.services.util.PlanetsServiceExplorer;

/**
 * This is a wrapper class that upgrades all supported Identify service
 * interfaces to the same level.
 * 
 * @author <a href="mailto:Andrew.Jackson@bl.uk">Andy Jackson</a>
 *
 */
public class IdentifyWrapper implements Identify {

    /** */
    private static final Log log = LogFactory.getLog(IdentifyWrapper.class);

    PlanetsServiceExplorer pse = null;
    Service service = null;
    Identify i = null;

    /**
     * @param wsdl The WSDL to wrap as a service.
     */
    public IdentifyWrapper(URL wsdl) {
        this.pse = new PlanetsServiceExplorer(wsdl);
        this.init();
    }

    /**
     * @param pse Construct based on a service explorer.
     */
    public IdentifyWrapper(PlanetsServiceExplorer pse) {
        this.pse = pse;
        this.init();
    }

    /**
     * 
     */
    private void init() {
        service = Service.create(pse.getWsdlLocation(), pse.getQName());
        try {
            i = (Identify) service.getPort(pse.getServiceClass());
        } catch (Exception e) {
            log.error("Failed to instanciate service " + pse.getQName() + " at " + pse.getWsdlLocation()
                    + " : Exception - " + e);
            i = null;
        }
    }

    /* (non-Javadoc)
     * @see eu.planets_project.services.identify.Identify#describe()
     */
    public ServiceDescription describe() {
        return i.describe();
    }

    /* (non-Javadoc)
     * @see eu.planets_project.services.identify.Identify#identify(eu.planets_project.services.datatypes.DigitalObject, java.util.List)
     */
    public IdentifyResult identify(DigitalObject digitalObject, List<Parameter> parameters) {

        return i.identify(digitalObject, parameters);
    }

}