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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 complex.storages;
+
+import com.sun.star.uno.XInterface;
+import com.sun.star.lang.XMultiServiceFactory;
+import com.sun.star.lang.XSingleServiceFactory;
+
+import com.sun.star.bridge.XUnoUrlResolver;
+import com.sun.star.uno.UnoRuntime;
+import com.sun.star.uno.XInterface;
+
+import com.sun.star.io.XStream;
+import com.sun.star.io.XInputStream;
+import com.sun.star.io.XOutputStream;
+import com.sun.star.io.XTruncate;
+import com.sun.star.io.XSeekable;
+
+
+public class BorderedStream
+ implements XStream, XInputStream, XOutputStream, XTruncate, XSeekable
+{
+ int m_nMaxSize;
+ int m_nCurSize;
+ int m_nCurPos;
+ byte m_pBytes[];
+
+ public BorderedStream( int nMaxSize )
+ {
+ m_nMaxSize = nMaxSize;
+ m_nCurSize = 0;
+ m_nCurPos = 0;
+ m_pBytes = new byte[m_nMaxSize];
+ }
+
+
+ // XStream
+
+
+
+ public synchronized XInputStream getInputStream()
+ throws com.sun.star.uno.RuntimeException
+ {
+ return (XInputStream)UnoRuntime.queryInterface( XInputStream.class, this );
+ }
+
+
+ public synchronized XOutputStream getOutputStream()
+ throws com.sun.star.uno.RuntimeException
+ {
+ return (XOutputStream)UnoRuntime.queryInterface( XOutputStream.class, this );
+ }
+
+
+ // XInputStream
+
+
+
+ public synchronized int readBytes( byte[][] aData, int nBytesToRead )
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ int nRead = 0;
+ if ( m_pBytes != null && nBytesToRead > 0 )
+ {
+ int nAvailable = m_nCurSize - m_nCurPos;
+ if ( nBytesToRead > nAvailable )
+ nBytesToRead = nAvailable;
+
+ aData[0] = new byte[nBytesToRead];
+ for ( int nInd = 0; nInd < nBytesToRead; nInd++ )
+ aData[0][nInd] = m_pBytes[m_nCurPos+nInd];
+
+ nRead = nBytesToRead;
+ m_nCurPos += nRead;
+ }
+ else
+ {
+ aData[0] = new byte[0];
+ }
+
+ return nRead;
+ }
+
+
+ public synchronized int readSomeBytes( byte[][] aData, int nMaxBytesToRead )
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ return readBytes( aData, nMaxBytesToRead );
+ }
+
+
+ public synchronized void skipBytes( int nBytesToSkip )
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ if ( nBytesToSkip < 0 )
+ throw new com.sun.star.io.IOException(); // illegal argument
+
+ if ( m_nCurSize - m_nCurPos > nBytesToSkip )
+ m_nCurPos += nBytesToSkip;
+ else
+ m_nCurPos = m_nCurSize;
+ }
+
+
+ public synchronized int available()
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ return 0;
+ }
+
+
+ public synchronized void closeInput()
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ // no need to do anything
+ }
+
+
+
+ // XOutputStream
+
+
+
+ public synchronized void writeBytes( byte[] aData )
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ if ( m_pBytes != null && aData.length > 0 )
+ {
+ if ( aData.length > m_nMaxSize - m_nCurPos )
+ throw new com.sun.star.io.IOException();
+
+ for ( int nInd = 0; nInd < aData.length; nInd++ )
+ m_pBytes[m_nCurPos+nInd] = aData[nInd];
+
+ m_nCurPos += aData.length;
+ if ( m_nCurPos > m_nCurSize )
+ m_nCurSize = m_nCurPos;
+ }
+ }
+
+
+ public synchronized void flush()
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ // nothing to do
+ }
+
+
+ public synchronized void closeOutput()
+ throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ // nothing to do
+ }
+
+
+
+ // XTruncate
+
+
+
+ public synchronized void truncate()
+ throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ m_nCurSize = 0;
+ m_nCurPos = 0;
+ }
+
+
+
+ // XSeekable
+
+
+
+ public synchronized void seek( long location )
+ throws com.sun.star.lang.IllegalArgumentException, com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ if ( location > (long)m_nCurSize )
+ throw new com.sun.star.lang.IllegalArgumentException();
+
+ m_nCurPos = (int)location;
+ }
+
+
+ public synchronized long getPosition()
+ throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ return (long)m_nCurPos;
+ }
+
+
+ public synchronized long getLength()
+ throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException
+ {
+ return (long)m_nCurSize;
+ }
+};
+