java.fedora.server.storage.translation.DOTranslatorImpl Maven / Gradle / Ivy

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The Fedora Client is a Java Library that allows API access to a Fedora Repository. The client is typically one part of a full Fedora installation.
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/*
 * -----------------------------------------------------------------------------
 *
 * License and Copyright: The contents of this file are subject to the
 * Apache License, Version 2.0 (the "License"); you may not use 
 * this file except in compliance with the License. You may obtain a copy of 
 * the License at 
 * http://www.fedora-commons.org/licenses.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 *
 * The entire file consists of original code.
 * Copyright © 2008 Fedora Commons, Inc.

 * 
Copyright © 2002-2007 The Rector and Visitors of the University of 
 * Virginia and Cornell University
 
 * All rights reserved.
 *
 * -----------------------------------------------------------------------------
 */
package fedora.server.storage.translation;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Map;

import org.apache.log4j.Logger;

import fedora.server.errors.ObjectIntegrityException;
import fedora.server.errors.ServerException;
import fedora.server.errors.StreamIOException;
import fedora.server.errors.UnsupportedTranslationException;
import fedora.server.storage.types.DigitalObject;

/**
 * DOTranslation implementation.
 *
 * @author [email protected]
 * @version $Id: DOTranslatorImpl.java 5220 2006-11-20 13:52:20Z cwilper $
 */
public class DOTranslatorImpl
        implements DOTranslator {

    /** Logger for this class. */
    private static final Logger LOG = Logger.getLogger(
            DOTranslatorImpl.class.getName());

    private Map m_serializers;
    private Map m_deserializers;

    public DOTranslatorImpl(Map serializers, Map deserializers) {
        m_serializers=serializers;
        m_deserializers=deserializers;
    }

    public void deserialize(InputStream in, DigitalObject out,
			String format, String encoding, int transContext)
            throws ObjectIntegrityException, StreamIOException,
            UnsupportedTranslationException, ServerException {
        try {
        	LOG.debug("Grabbing deserializer for: " + format);
            DODeserializer des=(DODeserializer) m_deserializers.get(format);
            if (des==null) {
                throw new UnsupportedTranslationException("No deserializer exists "
                        + "for format: " + format);
            }
            DODeserializer newDes=des.getInstance();
			newDes.deserialize(in, out, encoding, transContext);
        } catch (UnsupportedEncodingException uee) {
            throw new UnsupportedTranslationException("Deserializer for format: "
                    + format + " does not support encoding: " + encoding);
        }
    }

    public void serialize(DigitalObject in, OutputStream out,
			String format, String encoding, int transContext)
            throws ObjectIntegrityException, StreamIOException,
            UnsupportedTranslationException, ServerException {
        try {
			LOG.debug("Grabbing serializer for: " + format);
            DOSerializer ser=(DOSerializer) m_serializers.get(format);
            if (ser==null) {
                throw new UnsupportedTranslationException(
					"No serializer exists for format: " + format);
            }
            DOSerializer newSer=ser.getInstance();
			newSer.serialize(in, out, encoding, transContext);
        } catch (UnsupportedEncodingException uee) {
            throw new UnsupportedTranslationException("Serializer for format: "
                    + format + " does not support encoding: " + encoding);
        }
    }

}