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Micro Distribution of the Payara Project for IBM JDK
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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
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package com.sun.enterprise.deployment.archivist;

import org.glassfish.deployment.common.RootDeploymentDescriptor;
import com.sun.enterprise.deployment.io.DescriptorConstants;
import com.sun.enterprise.deployment.util.DOLUtils;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.api.deployment.archive.Archive;
import org.xml.sax.SAXParseException;
import org.jvnet.hk2.annotations.Service;

import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Level;
import java.util.Map;
import java.util.HashMap;

@Service
@ExtensionsArchivistFor("jpa")
public class WarPersistenceArchivist extends PersistenceArchivist {

    @Override
    public boolean supportsModuleType(ArchiveType moduleType) {
        return moduleType != null && moduleType.equals(DOLUtils.warType());
    }

    @Override
    public Object open(Archivist main, ReadableArchive warArchive, RootDeploymentDescriptor descriptor) throws IOException, SAXParseException {
        final String CLASSES_DIR = "WEB-INF/classes/";

        if(deplLogger.isLoggable(Level.FINE)) {
            deplLogger.logp(Level.FINE, "WarPersistenceArchivist",
                    "readPersistenceDeploymentDescriptors", "archive = {0}",
                    warArchive.getURI());
        }
        Map probablePersitenceArchives =  new HashMap();
        try {
            SubArchivePURootScanner warLibScanner = new SubArchivePURootScanner() {
                String getPathOfSubArchiveToScan() {
                    return "WEB-INF/lib";
                }
            };
            probablePersitenceArchives = getProbablePersistenceRoots(warArchive, warLibScanner);

            final String pathOfPersistenceXMLInsideClassesDir = CLASSES_DIR+ DescriptorConstants.PERSISTENCE_DD_ENTRY;
            InputStream is = warArchive.getEntry(pathOfPersistenceXMLInsideClassesDir);
            if (is!=null) {
                is.close();
                probablePersitenceArchives.put(CLASSES_DIR, warArchive.getSubArchive(CLASSES_DIR));
            }

            for(Map.Entry pathToArchiveEntry : probablePersitenceArchives.entrySet()) {
                readPersistenceDeploymentDescriptor(main, pathToArchiveEntry.getValue(), pathToArchiveEntry.getKey(), descriptor);
            }
        } finally {
            for(Archive probablePersitenceArchive : probablePersitenceArchives.values()) {
                probablePersitenceArchive.close();
            }
        }
        return null;
    }
}