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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 1999 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Ant", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.taskdefs; |
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import org.apache.tools.ant.Task; |
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import org.apache.tools.ant.Project; |
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import org.apache.tools.ant.BuildException; |
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import org.apache.tools.ant.ProjectHelper; |
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import org.apache.tools.ant.types.EnumeratedAttribute; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.InputStreamReader; |
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import java.io.IOException; |
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import java.io.BufferedInputStream; |
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/** |
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* Load a file into a property |
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* |
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* @author Steve Loughran |
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* @created 10 December 2001 |
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*/ |
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public class LoadFile extends Task { |
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/** |
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* source file, usually null |
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*/ |
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private File srcFile = null; |
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/** |
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* what to do when it goes pear-shaped |
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*/ |
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private boolean failOnError = true; |
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/** |
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* Encoding to use for filenames, defaults to the platform's default |
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* encoding. |
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*/ |
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private String encoding = null; |
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/** |
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* name of property |
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*/ |
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private String property = null; |
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/** |
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* Encoding to use for filenames, defaults to the platform's default |
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* encoding. <p> |
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* |
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* For a list of possible values see <a href="http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html"> |
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* http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html |
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* </a>.</p> |
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* |
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* @param encoding The new Encoding value |
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*/ |
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public void setEncoding(String encoding) { |
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this.encoding = encoding; |
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} |
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/** |
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* Sets the Property attribute of the LoadFile object |
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* |
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* @param property The new Property value |
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*/ |
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public void setProperty(String property) { |
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this.property = property; |
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} |
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/** |
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* Sets the srcfile attribute. |
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* |
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* @param srcFile The new SrcFile value |
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*/ |
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public void setSrcFile(File srcFile) { |
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this.srcFile = srcFile; |
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} |
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/** |
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* Sets the Failonerror attribute of the LoadFile object |
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* |
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* @param fail The new Failonerror value |
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*/ |
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public void setFailonerror(boolean fail) { |
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failOnError = fail; |
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} |
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/** |
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* read in a source file to a property |
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* |
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* @exception BuildException if something goes wrong with the build |
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*/ |
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public void execute() |
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throws BuildException { |
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//validation |
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if (srcFile == null) { |
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throw new BuildException("source file not defined"); |
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} |
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if (property == null) { |
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throw new BuildException("output property not defined"); |
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} |
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FileInputStream fis = null; |
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BufferedInputStream bis = null; |
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InputStreamReader instream = null; |
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log("loading "+srcFile+" into property "+property,Project.MSG_VERBOSE); |
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try { |
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long len = srcFile.length(); |
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log("file size = "+len,Project.MSG_DEBUG); |
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//discard most of really big files |
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if (len > Integer.MAX_VALUE) { |
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log("this file is far to big to load completely"); |
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} |
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int size=(int) len; |
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char[] buffer = new char[size]; |
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//open up the file |
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fis = new FileInputStream(srcFile); |
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bis = new BufferedInputStream(fis); |
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if (encoding == null) { |
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instream = new InputStreamReader(bis); |
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} |
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else { |
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instream = new InputStreamReader(bis, encoding); |
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} |
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instream.read(buffer); |
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String text = new String(buffer); |
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project.setNewProperty(property, text); |
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log("loaded "+buffer.length+" characters",Project.MSG_VERBOSE); |
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log(property+" := "+text,Project.MSG_DEBUG); |
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} catch (IOException ioe) { |
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String message = "Unable to load file: " + ioe.toString(); |
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if (failOnError) { |
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throw new BuildException(message, ioe, location); |
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} |
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else { |
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log(message, Project.MSG_ERR); |
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} |
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} finally { |
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try { |
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if (fis != null) { |
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fis.close(); |
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} |
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} catch (IOException ioex) { |
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} |
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} |
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} |
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//end class |
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} |
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Steve Loughran