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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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package com.sun.enterprise.deploy.shared;


import java.io.ByteArrayInputStream;
import java.io.File;
import java.net.URI;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.deployment.common.DeploymentUtils;
import java.io.IOException;
import java.util.jar.Manifest;
import java.util.List;
import java.util.ArrayList;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.net.URL;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLResolver;

import com.sun.logging.LogDomains;
import org.glassfish.internal.deployment.GenericHandler;

/**
 * Common methods for ArchiveHandler implementations
 *
 * @author Jerome Dochez
 */
public abstract class AbstractArchiveHandler extends GenericHandler {

    static final protected Logger _logger = LogDomains.getLogger(DeploymentUtils.class, LogDomains.DPL_LOGGER);

    private static XMLInputFactory xmlInputFactory;

    static {
        xmlInputFactory = XMLInputFactory.newInstance();
        xmlInputFactory.setProperty(XMLInputFactory.SUPPORT_DTD, false);
        // set an zero-byte XMLResolver as IBM JDK does not take SUPPORT_DTD=false
        // unless there is a jvm option com.ibm.xml.xlxp.support.dtd.compat.mode=false
        xmlInputFactory.setXMLResolver(new XMLResolver() {
                @Override
                public Object resolveEntity(String publicID,
                        String systemID, String baseURI, String namespace)
                        throws XMLStreamException {

                    return new ByteArrayInputStream(new byte[0]);
                }
            });
    }

    public List<URL> getManifestLibraries(DeploymentContext context) {
        try {
            Manifest manifest = getManifest(context.getSource());
            return DeploymentUtils.getManifestLibraries(context, manifest);
        }catch (IOException ioe) {
            _logger.log(Level.WARNING, 
                "Exception while getting manifest classpath: ", ioe);
            return new ArrayList<URL>();
        }
    }

    protected static XMLInputFactory getXMLInputFactory() {
        return xmlInputFactory;
    }
}