author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 00:15:44 +0200 | |
changeset 0 | 05da4621cfb2 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Implements ODTInputStream |
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* |
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*/ |
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|
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package com.nokia.tools.themeinstaller.odtconverter; |
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import java.io.ByteArrayOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.Enumeration; |
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/** |
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* Implements ODTInputStream |
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*/ |
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public class ODTInputStream extends InputStream |
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{ |
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/** ODTDocument */ |
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ODTDocument iODTDocument; |
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/** ByteArrayOutputStream for binary representations */ |
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ByteArrayOutputStream iBaos; |
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/** ODTDataOutputStream for writing data to stream */ |
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ODTDataOutputStream iODTDos; |
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/** byte array for read */ |
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byte[] iByteArray = null; |
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/** index for reading byte array */ |
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int iIndex = 0; |
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/* Literal delimiter is used in separation of theme header and |
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other data in ODT-streaming. */ |
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private static final char DELIM = '#'; |
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// Symbian CDirectFileStore needs these |
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private static final int WRITE_ONCE_FILE_STORE_UID = 268435511; |
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private static final int UNKNOWN_MEDIA_UID = 73066445; |
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/** |
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* Constructor |
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* @param aODTDocument |
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* @throws ODTException |
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*/ |
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public ODTInputStream( ODTDocument aODTDocument ) throws ODTException |
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{ |
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iODTDocument = aODTDocument; |
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iBaos = new ByteArrayOutputStream(); |
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iODTDos = new ODTDataOutputStream( iBaos ); |
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getBinaryRepresentations(); |
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} |
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/** |
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* gets binary representations of ODTHeader, ODTResources and DOMDocument |
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* @throws ODTException |
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*/ |
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private void getBinaryRepresentations() throws ODTException |
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{ |
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// first write stuff needed by Symbian CDirectFileStore, then |
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// get and write ODT material |
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try |
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{ |
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// write first uid |
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iODTDos.writeInt32( WRITE_ONCE_FILE_STORE_UID ); |
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// write two 0, for keeping stream valid in native side |
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iODTDos.writeInt( 0 ); |
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iODTDos.writeInt( 0 ); |
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// write second uid |
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iODTDos.writeInt32( UNKNOWN_MEDIA_UID ); |
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// write index where ODT header starts |
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iODTDos.writeInt32( 20 ); |
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// get and write ODT header |
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iBaos.write( iODTDocument.getODTHeader().getBinaryODTHeader() ); |
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// write delimiter |
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iODTDos.writeInt16( DELIM ); |
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// write resource count |
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int resCount = iODTDocument.getODTResources().size(); |
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iODTDos.writeInt32( resCount ); |
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// get and write ODTResources |
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for ( Enumeration resources = iODTDocument.getODTResources() |
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.elements(); resources.hasMoreElements(); ) |
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{ |
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ODTResource odtResource = ( ODTResource ) resources |
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.nextElement(); |
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iBaos.write( odtResource.getBinaryODTResource() ); |
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108 |
} |
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109 |
|
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// get and write DOMDocument |
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DOMExternalizer domExt = |
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new DOMExternalizer( iODTDocument.getDOMDocument() ); |
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iBaos.write( domExt.getByteArray() ); |
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114 |
} |
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catch( IOException e ) |
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116 |
{ |
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throw new ODTException( e.getMessage() ); |
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} |
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} |
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120 |
|
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121 |
/* (non-Javadoc) |
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* @see java.io.InputStream#close() |
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*/ |
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public void close() throws IOException |
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125 |
{ |
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iODTDos.close(); |
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iBaos.close(); |
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} |
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129 |
|
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/* (non-Javadoc) |
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* @see java.io.InputStream#read() |
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*/ |
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public int read() throws IOException |
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134 |
{ |
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if( iByteArray == null ) |
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136 |
{ |
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iByteArray = iBaos.toByteArray(); |
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} |
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if( iIndex >= iByteArray.length ) |
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140 |
{ |
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iByteArray = null; |
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return -1; |
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} |
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144 |
|
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byte b = iByteArray[iIndex++]; |
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// because 0xff byte is -1, which is used as end of stream value, |
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// we must return 0xff int which is 255. |
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if( b == (byte)0xff ) |
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149 |
{ |
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return 0xff; |
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} |
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return b; |
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} |
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154 |
} |