dirkv 02/01/11 05:24:45 Added: src/webdav/client/src/org/apache/webdav/cmd Spool.java Log: helper class to spool in/out streams to a file Revision Changes Path 1.1 jakarta-slide/src/webdav/client/src/org/apache/webdav/cmd/Spool.java Index: Spool.java =================================================================== /* * $Header: /home/cvs/jakarta-slide/src/webdav/client/src/org/apache/webdav/cmd/Spool.java,v 1.1 2002/01/11 13:24:45 dirkv Exp $ * $Revision: 1.1 $ * $Date: 2002/01/11 13:24:45 $ * * ==================================================================== * * The Apache Software License, Version 1.1 * * Copyright (c) 1999 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR * ITS 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * * [Additional notices, if required by prior licensing conditions] * */ package org.apache.webdav.cmd; import java.io.InputStream; import java.io.OutputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.FileNotFoundException; /** * This class provides wrappers around an InputStream and * an OutputStream allowing you to spool both streams to a * shared OutputStream. * * @author Dirk Verbeeck */ public class Spool { private InputStream in = System.in; private OutputStream out = System.out; private OutputStream spool= null; private InputStream wrappedInputStream; private OutputStream wrappedOutputStream; private boolean echo=false; /** * Create a spool for these two streams */ public Spool(InputStream in, OutputStream out) { this(); this.in=in; this.out=out; } /** * Create a spool for System.in and System.out */ public Spool() { wrappedInputStream = new InputStream() { public int read(byte b[]) throws IOException { int bytesRead = in.read(b); if (echo) out.write(b,0,bytesRead); if (spool!=null) spool.write(b,0,bytesRead); return bytesRead; } public int read(byte b[], int off, int len) throws IOException { int bytesRead = in.read(b,off,len); if (echo) out.write(b,off,bytesRead); if (spool!=null) spool.write(b,off,bytesRead); return bytesRead; } public int read() throws IOException { int nextByte = in.read(); if ((nextByte!=-1) && (echo)) out.write(nextByte); if ((nextByte!=-1) && (spool!=null)) spool.write(nextByte); return nextByte; } public long skip(long n) throws IOException { return in.skip(n); } public int available() throws IOException { return in.available(); } public void close() throws IOException { in.close(); } public synchronized void mark(int readlimit) { in.mark(readlimit); } public synchronized void reset() throws IOException { in.reset(); } public boolean markSupported() { return in.markSupported(); } }; wrappedOutputStream = new OutputStream() { public void write(int b) throws IOException { out.write(b); if (spool!=null) spool.write(b); } public void write(byte b[]) throws IOException { out.write(b); if (spool!=null) spool.write(b); } public void write(byte b[], int off, int len) throws IOException { out.write(b,off,len); if (spool!=null) spool.write(b,off,len); } public void flush() throws IOException { out.flush(); if (spool!=null) spool.flush(); } public void close() throws IOException { out.close(); } }; } /** * Echo the input stream to the output stream. */ public void setEcho(boolean isEnabled) { this.echo=isEnabled; } /** * Enable spooling and spool to the given filename. */ public void enable(String filename) throws FileNotFoundException { enable(new FileOutputStream(filename)); } /** * Enable Spooling and spool to the given OutputStream. */ public void enable(OutputStream spool) { if (isEnabled()) disable(); this.spool = spool; } /** * Disable spooling */ public void disable() { try { if (spool!=null) spool.close(); } catch (IOException ex) { } spool=null; } /** * Returns if spooling is enabled. */ public boolean isEnabled() { return (spool!=null); } /** * Returns an InputStream wrapped around the real InputStream. * Use this stream to read from. */ public InputStream getInputStream() { return wrappedInputStream; } /** * Returns an OutputStream wrapped around the real OutputStream. * Use this stream to write to. */ public OutputStream getOutputStream() { return wrappedOutputStream; } }
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