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/*
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 *
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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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package com.sun.enterprise.deploy.shared;

import org.glassfish.api.deployment.archive.ReadableArchive;
import java.util.Map;
import java.util.HashMap;

/**
 * Common methods for ReadableArchive implementations
 */
public abstract class AbstractReadableArchive implements ReadableArchive {
    protected ReadableArchive parentArchive;
    protected Map, Object> extraData=new HashMap, Object>();
    protected Map archiveMetaData = new HashMap();


    /**
     * set the parent archive for this archive
     *
     * @param parentArchive the parent archive
     */
    public void setParentArchive(ReadableArchive parentArchive) {
        this.parentArchive = parentArchive;
    }

    /**
     * get the parent archive of this archive
     *
     * @return the parent archive
     */
    public ReadableArchive getParentArchive() {
        return parentArchive;
    }

    /**
     * Returns any data that could have been calculated as part of
     * the descriptor loading.
     *
     * @param dataType the type of the extra data
     * @return the extra data or null if there are not an instance of
     * type dataType registered.
     */
    public synchronized  U getExtraData(Class dataType) {
        return dataType.cast(extraData.get(dataType));
    }

    public synchronized  void setExtraData(Class dataType, U instance) {
        extraData.put(dataType, instance);
    }

    public synchronized  void removeExtraData(Class dataType) {
        extraData.remove(dataType);
    }


    public void addArchiveMetaData(String metaDataKey, Object metaData) {
        if (metaData!=null) {
            archiveMetaData.put(metaDataKey, metaData);
        }
    }

    public  T getArchiveMetaData(String metaDataKey, Class metadataType) {
        Object metaData = archiveMetaData.get(metaDataKey);
        if (metaData != null) {
            return metadataType.cast(metaData);
        }
        return null;
    }

    public void removeArchiveMetaData(String metaDataKey) {
        archiveMetaData.remove(metaDataKey);
    }
}