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/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under 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.apache.org/licenses/LICENSE-2.0 .
 */

package org.openoffice.xmerge.converter.xml.xslt;

import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.Properties;

import org.openoffice.xmerge.ConvertData;
import org.openoffice.xmerge.ConverterCapabilities;
import org.openoffice.xmerge.Document;
import org.openoffice.xmerge.DocumentDeserializer;
import org.openoffice.xmerge.DocumentDeserializerFactory;
import org.openoffice.xmerge.DocumentMerger;
import org.openoffice.xmerge.DocumentMergerFactory;
import org.openoffice.xmerge.DocumentSerializer;
import org.openoffice.xmerge.DocumentSerializerFactory;
import org.openoffice.xmerge.PluginFactory;
import org.openoffice.xmerge.converter.dom.DOMDocument;
import org.openoffice.xmerge.util.registry.ConverterInfo;

/**
 *  <p>Xslt implementation of the <code>PluginFactory</code>.
 *  This encapsulates conversion of StarWriter XML format to and from
 *  a supported format.</p>
 *
 *  <p>The superclass produces a particular
 *  {@link org.openoffice.xmerge.Document Document}
 *  object, i.e. {@link
 *  org.openoffice.xmerge.converter.xml.sxw.SxwDocument
 *  SxwDocument} that the converters in this class work with.   Thus,
 *  this class only implements the methods that produces the converters,
 *  i.e. {@link
 *  org.openoffice.xmerge.DocumentSerializer
 *  DocumentSerializer} and {@link
 *  org.openoffice.xmerge.DocumentDeserializer
 *  DocumentDeserializer}</p>
 *
 *  @author   Aidan Butler
 */
public final class PluginFactoryImpl extends PluginFactory
    implements DocumentDeserializerFactory, DocumentSerializerFactory, DocumentMergerFactory
{

    public PluginFactoryImpl (ConverterInfo ci) {
           super(ci);
    }

    /** ConverterCapabilities object for this type of conversion. */
    private final static ConverterCapabilities converterCap =
        new ConverterCapabilitiesImpl();


    /**
     *  Returns an instance of <code>DocumentSerializerImpl</code>,
     *  which is an implementation of the <code>DocumentSerializer</code>
     *  interface.
     *
     *  @param  doc  <code>Document</code> object to be
     *               converted/serialized.
     *
     *  @return  A <code>DocumentSerializerImpl</code> object.
     */
    public DocumentSerializer createDocumentSerializer(Document doc) {
        return new DocumentSerializerImpl(this,doc);
    }


    /**
     *  Returns an instance of <code>DocumentDeserializerImpl</code>,
     *  which is an implementation of the <code>DocumentDeserializer</code>
     *  interface.
     *
     *  @param  cd   <code>ConvertData</code> object.
     *
     *  @return  A DocumentDeserializerImpl object.
     */
    public DocumentDeserializer createDocumentDeserializer(ConvertData cd) {

        return new DocumentDeserializerImpl(this,cd);
    }

     public org.openoffice.xmerge.Document createDeviceDocument(java.lang.String str, java.io.InputStream inputStream) throws java.io.IOException {
        String ext = this.getDeviceFileExtension();
        DOMDocument domDoc = new DOMDocument(str,ext);
        domDoc.read(inputStream);
        return domDoc;
    }


     public Document createOfficeDocument(String name, InputStream is)
        throws IOException {

        // read zipped XML stream
        GenericOfficeDocument doc = new GenericOfficeDocument(name);
        doc.read(is);
        return doc;
    }

     public Document createOfficeDocument(String name, InputStream is,boolean isZip)
        throws IOException {

        // read zipped XML stream
        GenericOfficeDocument doc = new GenericOfficeDocument(name);
        doc.read(is,isZip);
        return doc;
    }

    /**
     *  Returns a <code>String</code> containing the file extension of a
     *  <code>Document</code>. This method uses a properties file to determine
     *  a mapping from the device mime in the <code>ConverterInfo</code> to a
     *  particular file extension. If a mapping is not specified, the default
     *  is ".txt".
     *
     *  @return  <code>String</code>.
     */


    public String getDeviceFileExtension(){
    Class<? extends PluginFactoryImpl> c = this.getClass();
    InputStream is = c.getResourceAsStream("XsltPlugin.properties");
    Properties props = new Properties();
    String ext= ".txt";
    String mimeType = null;
    ConverterInfo ci = this.getConverterInfo();
    Iterator<String> enumerate = ci.getDeviceMime();
    while (enumerate.hasNext()) {
        mimeType= enumerate.next();
    }
    try {
        props.load(is);

         String info = props.getProperty(mimeType);
         if (info != null) {
             ext = info;
         }
    } catch (Exception e) {

        // It is okay for the property file to not exist.
        //
    }
    return ext;
    }

    /**
     *  Returns an instance of <code>DocumentMergerImpl</code>,
     *  which is an implementation of the <code>DocumentMerger</code>
     *  interface.
     *
     *  @param  doc  <code>Document</code> to merge.
     *
     *  @return  A DocumentMergerImpl object.
     */
    public DocumentMerger createDocumentMerger(Document doc) {
    ConverterCapabilities cc = converterCap;
        DocumentMergerImpl merger = new DocumentMergerImpl(doc, cc);
        return merger;

    }

}