/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


/** You can find more
 * information on the following web page:
 * http://api.openoffice.org/common/ref/com/sun/star/index.html
 */


/*Java Uno Helper Classes*/
import com.sun.star.lib.uno.adapter.XInputStreamToInputStreamAdapter;
import com.sun.star.lib.uno.adapter.XOutputStreamToOutputStreamAdapter;

/*StarOffice/Uno Classes*/
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.lang.XServiceInfo;
import com.sun.star.lang.XTypeProvider;
import com.sun.star.uno.Type;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.comp.loader.FactoryHelper;
import com.sun.star.lang.XServiceName;
import com.sun.star.lang.XSingleServiceFactory;
import com.sun.star.registry.XRegistryKey;
import com.sun.star.frame.XConfigManager;
import com.sun.star.xml.sax.InputSource;
import com.sun.star.xml.sax.XParser;
import com.sun.star.io.XInputStream;
import com.sun.star.io.XOutputStream;
import com.sun.star.xml.sax.XDocumentHandler;
import com.sun.star.uno.AnyConverter;

/* Generated from Idls */
import com.sun.star.xml.XImportFilter;
import com.sun.star.xml.XExportFilter;

/* XMerge Classes */
import org.openoffice.xmerge.util.registry.ConverterInfoReader;
import org.openoffice.xmerge.util.registry.ConverterInfo;
import org.openoffice.xmerge.util.registry.ConverterInfoMgr;
import org.openoffice.xmerge.Convert;
import org.openoffice.xmerge.ConverterFactory;
import org.openoffice.xmerge.Document;
import org.openoffice.xmerge.ConvertData;
import org.openoffice.xmerge.converter.xml.OfficeDocument;
/*Java Classes*/
import java.util.Enumeration;
import java.io.*;
import javax.xml.parsers.*;
import java.net.URI;


/** This outer class provides an inner class to implement the service
 * description and a method to instantiate the
 * component on demand (__getServiceFactory()).
 */
public class XMergeBridge {
    
    
    private static XMultiServiceFactory xMSF;
    private static XDocumentHandler exportDocHandler=null;
    private static XInputStream xInStream =null;
    private static XOutputStream xOutStream=null;
    private static String  udJarPath=null;
    private static XOutputStream xos = null;
    private static XOutputStreamToOutputStreamAdapter adaptedStream=null;
    private static String offMime=null;
    private static String sdMime=null;
    private static String sFileName=null; 
    private static String sURL="";

    //private static FileOutputStream adaptedStream =null;

    /** This inner class provides the component as a concrete implementation
     * of the service description. It implements the needed interfaces.
     * @implements XTypeProvider
     */
    static public class _XMergeBridge implements
										       XImportFilter,
	 XExportFilter,						     
        XServiceName,
        XServiceInfo,
	XDocumentHandler,  
        XTypeProvider {
        
        /** The component will be registered under this name.
         */
        static private final String __serviceName = "com.sun.star.documentconversion.XMergeBridge";
        
	
        public com.sun.star.uno.Type[] getTypes() {
            Type[] typeReturn = {};

            try {
                typeReturn = new Type[] {
                new Type( XTypeProvider.class ),
                new Type( XImportFilter.class ),
		new Type( XExportFilter.class ),
                new Type( XServiceName.class ),
                new Type( XServiceInfo.class ) };
            }
            catch( Exception exception ) {
		
            }

            return( typeReturn );
        }

	String getFileName(String origName)
	{
	    String name=null;
	    if (origName !=null)
	    {
		if(origName.equalsIgnoreCase(""))
		    name = "OutFile"; 
		else {
		    if (origName.lastIndexOf("/")>=0){
			    origName=origName.substring(origName.lastIndexOf("/")+1,origName.length());
		    }	    
		    if (origName.lastIndexOf(".")>=0){
			name = origName.substring(0,(origName.lastIndexOf(".")));
		    }
		    else{
			name=origName;
		    }
		}
	    }
	    else{   
		name = "OutFile"; 
	    }
	    return name;
	}

        
	public boolean importer(com.sun.star.beans.PropertyValue[] aSourceData, 
				com.sun.star.xml.sax.XDocumentHandler xDocHandler, 
				java.lang.String[] msUserData) throws com.sun.star.uno.RuntimeException { 
				/*    
	    System.out.println("\nFound the Importer!\n");
	    
	    System.out.println("\n"+msUserData[0]);
	    System.out.println("\n"+msUserData[1]);
	    System.out.println("\n"+msUserData[2]);
	    System.out.println("\n"+msUserData[3]);
	    System.out.println("\n"+msUserData[4]);
	    System.out.println("\n"+msUserData[5]);
	    */
	    sFileName="";			    
	    sURL="";
	    String sDirectory = null;
	    String udConvertClass=msUserData[0];
	    udJarPath=msUserData[1];
	    String udImport =msUserData[2];
	    String udExport =msUserData[3];
	    offMime =msUserData[4];
	    sdMime = msUserData[5];
	    com.sun.star.io.XInputStream xis=null;	
	    com.sun.star.beans.PropertyValue[] pValue = aSourceData;
	    
	    for  (int  i = 0 ; i < pValue.length; i++)
	    {

		//System.out.println("\n"+pValue[i].Name+" "+pValue[i].Value;

		 try{
		     //System.out.println("\n"+pValue[i].Name+" "+pValue[i].Value);
		     if (pValue[i].Name.compareTo("InputStream")==0){
			xis=(com.sun.star.io.XInputStream)AnyConverter.toObject(new Type(com.sun.star.io.XInputStream.class), pValue[i].Value);
		     }
		     if (pValue[i].Name.compareTo("FileName")==0){
			 sFileName=(String)AnyConverter.toObject(new Type(java.lang.String.class), pValue[i].Value);
		     }
		    
		 }
		 catch(com.sun.star.lang.IllegalArgumentException AnyExec){
		     System.out.println("\nIllegalArgumentException "+AnyExec);
		 }


	    } 
	   
	    
	    try{
		
		Object xCfgMgrObj=xMSF.createInstance("com.sun.star.config.SpecialConfigManager");
		 XConfigManager xCfgMgr = (XConfigManager) UnoRuntime.queryInterface(
										    XConfigManager.class , xCfgMgrObj );	
		String PathString=xCfgMgr.substituteVariables("$(progurl)" );
		PathString= PathString.concat("/");
		udJarPath= PathString.concat(udJarPath);

		Object xPipeObj=xMSF.createInstance("com.sun.star.io.Pipe");
		xInStream = (XInputStream) UnoRuntime.queryInterface(
                        XInputStream.class , xPipeObj );
	        xOutStream = (XOutputStream) UnoRuntime.queryInterface(
                        XOutputStream.class , xPipeObj );
		convert (xis,xOutStream,false,udJarPath,sFileName,offMime,sdMime);
		Object xSaxParserObj=xMSF.createInstance("com.sun.star.xml.sax.Parser");
		
		XParser xParser = (XParser) UnoRuntime.queryInterface(
                        XParser.class , xSaxParserObj );
		if (xParser==null){
		    System.out.println("\nParser creation Failed");
		}
		xOutStream.closeOutput();
		InputSource aInput = new InputSource();
		if (sFileName==null){
			sFileName="";
		    }
		aInput.sSystemId = sFileName;
		aInput.aInputStream =xInStream;
                xParser.setDocumentHandler ( xDocHandler );
		
		xParser.parseStream ( aInput );
		xOutStream.closeOutput();
		xInStream.closeInput();
		
	    }
	    catch (IOException e){
		//System.out.println("XMergeBridge IO Exception "+e.getMessage());
		  return false;
	    }
	     catch (Exception e){
		//System.out.println("XMergeBridge Exception "+e+" "+e.getMessage());
		return false;
	    }
	    return true;
	}

       public boolean exporter(com.sun.star.beans.PropertyValue[] aSourceData, 
			       java.lang.String[] msUserData) throws com.sun.star.uno.RuntimeException{
				  
				   /*		   	   	   		   
	    System.out.println("\nFound the Exporter!\n");
	     
	    System.out.println("\n"+msUserData[0]);
	    System.out.println("\n"+msUserData[1]);
	    System.out.println("\n"+msUserData[2]);
	    System.out.println("\n"+msUserData[3]);
	    System.out.println("\n"+msUserData[4]);
	    System.out.println("\n"+msUserData[5]);
	    */
	    sFileName=null;		   
	    sURL=null;
	    String sDirectory = null;
	    String title=null;
	    String udConvertClass=msUserData[0];
	    udJarPath=msUserData[1];
	    String udImport =msUserData[2];
	    String udExport =msUserData[3];
	    offMime =msUserData[4];
	    sdMime = msUserData[5];
		
	    com.sun.star.beans.PropertyValue[] pValue = aSourceData;
	    for  (int  i = 0 ; i < pValue.length; i++)
	    {
		
		//System.out.println("\n"+pValue[i].Name+" "+pValue[i].Value);
		

		try{
		    //System.out.println("\n"+pValue[i].Name+" "+pValue[i].Value);
		    if (pValue[i].Name.compareTo("OutputStream")==0){
			xos=(com.sun.star.io.XOutputStream)AnyConverter.toObject(new Type(com.sun.star.io.XOutputStream.class), pValue[i].Value);
			//  System.out.println(pValue[i].Name+" "+xos); 
		    }
		    if (pValue[i].Name.compareTo("FileName")==0){
			sFileName=(String)AnyConverter.toObject(new Type(java.lang.String.class), pValue[i].Value);
			//System.out.println(pValue[i].Name+" "+sFileName); 
		    }
		    if (pValue[i].Name.compareTo("URL")==0){
			sURL=(String)AnyConverter.toObject(new Type(java.lang.String.class), pValue[i].Value);
			// System.out.println("\nMediaDescriptor url "+pValue[i].Name+" "+sURL);
			
		    }
		    if (pValue[i].Name.compareTo("Title")==0){
		   
			title=(String)AnyConverter.toObject(new Type(java.lang.String.class), pValue[i].Value);
			//System.out.println(pValue[i].Name+" "+title); 
		    }
		} 
		catch(com.sun.star.lang.IllegalArgumentException AnyExec){
		     System.out.println("\nIllegalArgumentException "+AnyExec);
		}
	    }
	    
					 
	    if (sURL==null){
		sURL="";
	    }
	    
	     try{
	  
		 Object xCfgMgrObj=xMSF.createInstance("com.sun.star.config.SpecialConfigManager");
		 XConfigManager xCfgMgr = (XConfigManager) UnoRuntime.queryInterface(
										    XConfigManager.class , xCfgMgrObj );
		
		String PathString=xCfgMgr.substituteVariables("$(progurl)" );
		PathString= PathString.concat("/");
		udJarPath= PathString.concat(udJarPath); 

		Object xPipeObj=xMSF.createInstance("com.sun.star.io.Pipe");
		xInStream = (XInputStream) UnoRuntime.queryInterface(
                        XInputStream.class , xPipeObj );
		xOutStream = (XOutputStream) UnoRuntime.queryInterface(
                        XOutputStream.class , xPipeObj );
	       }
	      catch (Exception e){
		System.out.println("Exception "+e);
		  return false;
	    }
	     
	    return true;
       }

	public String replace(String origString, String origChar, String replaceChar){
	       String tmp="";	
	       int index=origString.indexOf(origChar);
	       if(index !=-1){
		   while (index !=-1){
		       String first =origString.substring(0,index);
		       first=first.concat(replaceChar);
		       tmp=tmp.concat(first);
		       origString=origString.substring(index+1,origString.length());
		       index=origString.indexOf(origChar);
		       if(index==-1) {
			   tmp=tmp.concat(origString);
		       }
		       
		   }
		   
	       }
	       return tmp;
	}
	   
	public String needsMask(String origString){
	    if (origString.indexOf("&")!=-1){
		origString=replace(origString,"&","&amp;");
	    }    
	     if (origString.indexOf("\"")!=-1){
		origString=replace(origString,"\"","&quot;");
	    }    
	    if (origString.indexOf("<")!=-1){
		origString=replace(origString,"<","&lt;");
	    }  
	    if (origString.indexOf(">")!=-1){
		origString=replace(origString,">","&gt;");
	    }  
	    return origString;
	  
	}

       
       public void  startDocument ()	{
	   //System.out.println("\nStart Document!");
       }
	
	public void endDocument()throws com.sun.star.uno.RuntimeException
	{	   
	    
	    try{
	    xOutStream.closeOutput();	
		convert (xInStream,xos,true,udJarPath,sURL,offMime,sdMime);
		
	    }
	    catch (IOException e){
		//System.out.println("Exception "+e);
		throw new com.sun.star.uno.RuntimeException(e.getMessage());

	    }
	     catch (Exception e){
		//System.out.println("Exception "+e);
		throw new com.sun.star.uno.RuntimeException("Xmerge Exception");

	    }
	}
	

	public void startElement (String str, com.sun.star.xml.sax.XAttributeList xattribs)
	{
	   
	    str="<".concat(str);
	    if (xattribs !=null)
	    {
		str= str.concat(" ");
		int len=xattribs.getLength();
		for (short i=0;i<len;i++)
		    {
			str=str.concat(xattribs.getNameByIndex(i));
			str=str.concat("=\"");
			str=str.concat(needsMask(xattribs.getValueByIndex(i)));
			str=str.concat("\" ");
		    }
	    }
	    str=str.concat(">");
	    // System.out.println(str); 
	    try{
		 xOutStream.writeBytes(str.getBytes("UTF-8"));
	    }
	    catch (Exception e){
		System.out.println("\n"+e);
	    }
	    
	}

	public void endElement(String str){
	   
	    str="</".concat(str);
	    str=str.concat(">");
	    try{
		 xOutStream.writeBytes(str.getBytes("UTF-8"));
		
	    }
	    catch (Exception e){
		System.out.println("\n"+e);
	    }
    
	   
	}
	public void characters(String str){
	    str=needsMask(str);
	    try{
		 xOutStream.writeBytes(str.getBytes("UTF-8"));
	    }
	   catch (Exception e){
	       System.out.println("\n"+e);
	   }
	     
	    
	}
	
	public void ignorableWhitespace(String str){
	   
	   
	}
       public void processingInstruction(String aTarget, String aData){
	  
       }
	
	public void setDocumentLocator(com.sun.star.xml.sax.XLocator xLocator){
	  
	}

     
	public void convert (com.sun.star.io.XInputStream xml,com.sun.star.io.XOutputStream device,
             boolean convertFromOffice,String pluginUrl,String FileName,String offMime,String sdMime) throws com.sun.star.uno.RuntimeException, IOException {
    
	     String jarName = pluginUrl;
	     String name= getFileName(FileName);
	  
	     ConverterInfo converterInfo = null;
	     Enumeration ciEnum= null;
	    
	     XInputStreamToInputStreamAdapter xis =new XInputStreamToInputStreamAdapter(xml);
		
	     
	     XOutputStreamToOutputStreamAdapter newxos =new XOutputStreamToOutputStreamAdapter(device);
	     try{
		 ConverterInfoReader cir = new ConverterInfoReader(jarName,false);
		 ciEnum =cir.getConverterInfoEnumeration();
	     }
	     catch (ParserConfigurationException pexc){
		  System.out.println("Error:"+pexc);
	     }
	      catch ( org.xml.sax.SAXException pexc){
		  System.out.println("Error:"+pexc);
	     }
	     catch(Exception e){
		 System.out.println("Error:"+e);
	     }
	     ConverterInfoMgr. removeByJar(jarName);
	     if (convertFromOffice)
	     {
		 
		 try {
		     
		     //Check to see if jar contains a plugin Impl 
			 
		         ConverterInfoMgr.addPlugIn(ciEnum);
			 ConverterFactory cf = new ConverterFactory();
			
			 Convert cv = cf.getConverter(ConverterInfoMgr.findConverterInfo(sdMime,offMime),false);
			 if (cv == null) {
			     System.out.println("\nNo plug-in exists to convert from <staroffice/sxw> to <specified format> ");
			   
			 }
			 else
			 {
			     cv.addInputStream(name,(InputStream)xis,false);
			     ConvertData dataOut = cv.convert();
			   
			     Enumeration docEnum = dataOut.getDocumentEnumeration();
			   
			     if (docEnum.hasMoreElements()){
				     Document docOut      = (Document)docEnum.nextElement();
				     String fileName      = docOut.getFileName();
				     docOut.write(newxos);
				     
				     newxos.flush();
				     newxos.close();
				     
				  
				     int i=1;
				     while (docEnum.hasMoreElements() && sURL.startsWith("file:")) {
					 //URI uri=new URI(sFileName);
					 URI uri=new URI(sURL);
					 String  newFileName= getPath(uri);
					 
					     
					 //System.out.println("\nURI: "+uri.getPath());
					 File newFile=null;
					 if (newFileName.lastIndexOf(".")!=-1){
					     newFile =new File(newFileName.substring(0,newFileName.lastIndexOf("."))+String.valueOf(i)+newFileName.substring(newFileName.lastIndexOf(".")));
					 }
					 else{
					    newFile =new File(newFileName.concat(String.valueOf(i)));
					 }
				       
					 FileOutputStream fos = new FileOutputStream(newFile);
					 docOut      = (Document)docEnum.nextElement();
					 fileName      = docOut.getFileName();
					 docOut.write(fos);
					 fos.flush();
					 fos.close();
					 i++;
					 
				     }
				
			     }   
			 }
			 ConverterInfoMgr.removeByJar(jarName);
		 } 
		 catch (StackOverflowError sOE){
		     System.out.println("\nERROR : Stack OverFlow. \n Increase of the JRE by adding the following line to the end of the javarc file \n \"-Xss1m\"\n");
		 
		 }
		 catch (Exception e) {
		     System.out.println("Error:"+e);
		      throw new IOException("Xmerge Exception");
		     }
	     }
	     else{
		
		 try {
		      //Check to see if jar contains a plugin Impl 
		         ConverterInfoMgr.addPlugIn(ciEnum);
		         ConverterFactory cf = new ConverterFactory();
			 Convert cv = cf.getConverter(ConverterInfoMgr.findConverterInfo(sdMime,offMime),true);
			 if (cv == null) {
			     System.out.println("\nNo plug-in exists to convert to <staroffice/sxw> from <specified format>");
			 }
			 else
			 {
                             /*
                             ByteArrayOutputStream bout = new ByteArrayOutputStream();
                             byte[][] buf = new byte[1][4096];
                             int n=0;
                             while ((n=xml.readSomeBytes(buf, 4096))>0)
                                 bout.write(buf[0], 0, n);
                             ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
                             cv.addInputStream(name, bin, false);
                            */
			     cv.addInputStream(name,(InputStream)xis,false);
			     //System.out.println("\nConverting");
			     ConvertData dataIn = cv.convert();
			     //System.out.println("\nFinished Converting");
			     Enumeration docEnum = dataIn.getDocumentEnumeration();
			     while (docEnum.hasMoreElements()) {
				 OfficeDocument docIn      = (OfficeDocument)docEnum.nextElement();		   
				
				 docIn.write(newxos,false);
			     }
			     //newxos.write(-1); //EOF character
						       //newxos.flush();
			     newxos.close();
			 }
			 ConverterInfoMgr.removeByJar(jarName);
		 } 
		 catch (StackOverflowError sOE){
		      System.out.println("\nERROR : Stack OverFlow. \n Increase of the JRE by adding the following line to the end of the javarc file \n \"-Xss1m\"\n");
		 }
		 catch (Exception e) {
		     System.out.println("Error:"+e);
		     throw new IOException("Xmerge Exception");
		 } 
	    
		 
	     }
	   
	}

        private String getPath(URI uri){
	    String path = uri.getPath();
	    String opSys=System.getProperty("os.name");
	    if(opSys.indexOf("Windows")!=-1){
		path= path.replace('/','\\');
		path = path.substring(1);
	    }
	    return path;
	}
	    

        // Implement methods from interface XTypeProvider
        public byte[] getImplementationId() {
            byte[] byteReturn = {};

            byteReturn = new String( "" + this.hashCode() ).getBytes();

            return( byteReturn );
        }

        // Implement method from interface XServiceName
        public String getServiceName() {
            return( __serviceName );
        }
    
        // Implement methods from interface XServiceInfo
        public boolean supportsService(String stringServiceName) {
            return( stringServiceName.equals( __serviceName ) );
        }
    
        public String getImplementationName() {
            return( _XMergeBridge.class.getName() );
        }
    
        public String[] getSupportedServiceNames() {
            String[] stringSupportedServiceNames = { __serviceName };
            return( stringSupportedServiceNames );
        }
    }
   
    /**
     * Returns a factory for creating the service.
     * This method is called by the <code>JavaLoader</code>
     *
     * @return  returns a <code>XSingleServiceFactory</code> for creating the
     *          component
     *
     * @param   implName     the name of the implementation for which a
     *                       service is desired
     * @param   multiFactory the service manager to be used if needed
     * @param   regKey       the registryKey
     *
     * @see                  com.sun.star.comp.loader.JavaLoader
     */
    public static XSingleServiceFactory __getServiceFactory(String implName,
    XMultiServiceFactory multiFactory,
    XRegistryKey regKey) {
	xMSF= multiFactory;
        XSingleServiceFactory xSingleServiceFactory = null;
        if (implName.equals(_XMergeBridge.class.getName()) ) {
            xSingleServiceFactory = FactoryHelper.getServiceFactory(_XMergeBridge.class,
            _XMergeBridge.__serviceName,
            multiFactory,						    
            regKey);
        }
        
        return xSingleServiceFactory;
    }
}