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+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * The Contents of this file are made available subject to the terms of
+ * the BSD license.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Sun Microsystems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *************************************************************************/
+
+import com.sun.star.ucb.OpenCommandArgument2;
+import com.sun.star.ucb.OpenMode;
+import com.sun.star.ucb.XContent;
+import com.sun.star.io.XActiveDataSink;
+import com.sun.star.io.XInputStream;
+
+/**
+ * Accessing (Loading) the Content Data Stream of a UCB Document Content
+ */
+public class DataStreamRetriever {
+
+ /**
+ * Member properties
+ */
+ private Helper m_helper;
+ private XContent m_content;
+ private String m_contenturl = "";
+
+ /**
+ * Constructor.
+ *
+ *@param args This constructor requires the arguments:
+ * -url=... (optional)
+ * See Help (method printCmdLineUsage()).
+ * Without the arguments a new connection to a
+ * running office cannot created.
+ */
+ public DataStreamRetriever( String args[] ) throws java.lang.Exception {
+
+ // Parse arguments
+ parseArguments( args );
+
+ // Init
+ m_helper = new Helper( getContentURL() );
+
+ // Create UCB content
+ m_content = m_helper.createUCBContent();
+ }
+
+ /**
+ * Read the document data stream of a document content using a
+ * XActiveDataSink implementation as data sink...
+ *
+ *@return XInputStream Returns input stream if stream successfully retrieved,
+ * null otherwise
+ */
+ public XInputStream getDataStream()
+ throws com.sun.star.ucb.CommandAbortedException, com.sun.star.uno.Exception {
+
+ XInputStream data = null;
+ if ( m_content != null ) {
+
+ // Fill argument structure...
+ OpenCommandArgument2 arg = new OpenCommandArgument2();
+ arg.Mode = OpenMode.DOCUMENT;
+ arg.Priority = 32768; // static final for 32768
+
+ // Create data sink implementation object.
+ XActiveDataSink dataSink = new MyActiveDataSink();
+ arg.Sink = dataSink;
+
+ // Execute command "open". The implementation of the command will
+ // supply an XInputStream implementation to the data sink.
+ m_helper.executeCommand( m_content, "open", arg );
+
+ // Get input stream supplied by the open command implementation.
+ data = dataSink.getInputStream();
+ }
+ return data;
+ }
+
+ /**
+ * Get connect URL.
+ *
+ *@return String That contains the connect URL
+ */
+ public String getContentURL() {
+ return m_contenturl;
+ }
+
+ /**
+ * Parse arguments
+ *
+ *@param args Arguments
+ */
+ private void parseArguments( String[] args ) throws java.lang.Exception {
+
+ for ( int i = 0; i < args.length; i++ ) {
+ if ( args[i].startsWith( "-url=" )) {
+ m_contenturl = args[i].substring( 5 );
+ } else if ( args[i].startsWith( "-help" ) ||
+ args[i].startsWith( "-?" )) {
+ printCmdLineUsage();
+ System.exit( 0 );
+ }
+ }
+
+ if ( m_contenturl == null || m_contenturl.equals( "" )) {
+ m_contenturl = Helper.prependCurrentDirAsAbsoluteFileURL( "data/data.txt" );
+ }
+ }
+
+ /**
+ * Print the commands options
+ */
+ private void printCmdLineUsage() {
+ System.out.println(
+ "Usage : DataStreamRetriever -url=..." );
+ System.out.println(
+ "Defaults: -url=<currentdir>/data/data.txt" );
+ System.out.println(
+ "\nExample : -url=file:///temp/my.txt" );
+ }
+
+ /**
+ * Print Stream content.
+ */
+ private void printStream( XInputStream data )
+ throws com.sun.star.uno.Exception {
+
+
+ // Read data from input stream...65536
+
+
+ // Data buffer. Will be allocated by input stream implementation!
+ byte[][] buffer = new byte[ 1 ][ 65536 ];
+ int read = data.readSomeBytes( buffer, 65536 );
+ System.out.println( "Read bytes : " + read );
+ System.out.println( "Read data (only first 64K displayed): ");
+ while ( read > 0 ) {
+ byte[] bytes = new byte[ read ];
+ for( int i = 0; i < read; i++ ) {
+ bytes[ i ] = buffer[ 0 ][ i ];
+ }
+ System.out.println( new String(bytes) );
+
+ // Process data contained in buffer.
+ read = data.readSomeBytes( buffer, 65536 );
+ }
+ }
+
+ /**
+ * Create a new connection with the specific args to a running office and
+ * access (Load) the content data stream of a UCB document content.
+ */
+ public static void main ( String args[] ) {
+ System.out.println( "\n" );
+ System.out.println(
+ "-----------------------------------------------------------------------" );
+ System.out.println(
+ "DataStreamRetriever - obtains the data stream from a document resource." );
+ System.out.println(
+ "-----------------------------------------------------------------------" );
+
+ try {
+
+ DataStreamRetriever access = new DataStreamRetriever( args );
+ XInputStream data = access.getDataStream();
+ String url = access.getContentURL();
+ if ( data != null ) {
+ String tempPrint = "\nGetting data stream for resource " + url +
+ " succeeded.";
+ int size = tempPrint.length();
+ System.out.println( tempPrint );
+ tempPrint = "";
+ for( int i = 0; i < size; i++ ) {
+ tempPrint += "-";
+ }
+ System.out.println( tempPrint );
+ access.printStream( data );
+ } else {
+ System.out.println(
+ "Getting data stream for resource " + url + " failed." );
+ }
+ } catch ( com.sun.star.io.NotConnectedException e ) {
+ System.out.println( "Error: " + e );
+ } catch ( com.sun.star.io.BufferSizeExceededException e ) {
+ System.out.println( "Error: " + e );
+ } catch ( com.sun.star.io.IOException e ) {
+ System.out.println( "Error: " + e );
+ } catch ( com.sun.star.ucb.CommandAbortedException e ) {
+ System.out.println( "Error: " + e );
+ } catch ( com.sun.star.uno.Exception e ) {
+ System.out.println( "Error: " + e );
+ } catch ( java.lang.Exception e ) {
+ System.out.println( "Error: " + e );
+ }
+ System.exit( 0 );
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */