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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) 2001 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 java.io.BufferedReader; |
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import java.io.InputStreamReader; |
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import java.io.IOException; |
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import java.util.StringTokenizer; |
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import java.util.Vector; |
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import org.apache.tools.ant.*; |
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/** |
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* Ant task to read input line from console. |
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* |
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* @author Ulrich Schmidt <usch@usch.net> |
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*/ |
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public class Input extends Task { |
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private String validargs = null; |
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private String exitargs = null; |
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private String exitmessage = "Build abborted."; |
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private String message = ""; |
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private String addproperty = null; |
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private String input = null; |
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/** |
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* Defines valid input parameters as comma separated String. If set, input |
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* task will reject any input not defined as accepted and requires the user |
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* to reenter it. Validargs are case sensitive. If you want 'a' and 'A' to |
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* be accepted you need to define both values as accepted arguments. |
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* |
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* @param validargs A comma separated String defining valid input args. |
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*/ |
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public void setValidargs (String validargs) { |
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this.validargs = validargs; |
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} |
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/** |
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* Defines the name of a property to be created from input. Behaviour is |
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* according to property task which means that existing properties |
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* cannot be overriden. |
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* |
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* @param exitargs Name for the property to be created from input |
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*/ |
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public void setAddproperty (String addproperty) { |
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this.addproperty = addproperty; |
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} |
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/* |
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* Defines exit condition parameters as comma separated String. If input |
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* matches one of these input task will end build by throwing a |
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* BuildException. ExitArgs are case sensitive. If you want the build to |
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* end on 'x' and 'X' you need to define both values as exit arguments. |
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* |
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* @param exitargs A comma separated String defining exit arguments. |
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*/ |
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public void setExitargs (String exitargs) { |
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this.exitargs = exitargs; |
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} |
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/** |
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* Sets the ExitMessage which gets displayed when exiting the build run. |
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* Default is 'Build abborted.' |
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* @param exitmessage The exit message to be displayed. |
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*/ |
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public void setExitmessage (String exitmessage) { |
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this.exitmessage = exitmessage; |
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} |
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/** |
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* Sets the Message which gets displayed to the user during the build run. |
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* @param message The message to be displayed. |
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*/ |
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public void setMessage (String message) { |
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this.message = message; |
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} |
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/** |
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* Sets surrogate input to allow automated testing. |
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* @param input The surrogate input used for testing. |
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*/ |
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public void setTestinput (String testinput) { |
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this.input = testinput; |
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} |
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/** |
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* No arg constructor. |
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*/ |
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public Input () { |
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} |
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/** |
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* Actual test method executed by jakarta-ant. |
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* @exception BuildException |
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*/ |
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public void execute () throws BuildException { |
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Vector accept = null; |
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if (validargs != null) { |
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accept = new Vector(); |
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StringTokenizer stok = new StringTokenizer(validargs, ",", false); |
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while (stok.hasMoreTokens()) { |
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accept.addElement(stok.nextToken()); |
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} |
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} |
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Vector exit = null; |
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if (exitargs != null) { |
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exit = new Vector(); |
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StringTokenizer stok = new StringTokenizer(exitargs, ",", false); |
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while (stok.hasMoreTokens()) { |
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exit.addElement(stok.nextToken()); |
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} |
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} |
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log(message, Project.MSG_WARN); |
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if (input == null) { |
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try { |
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BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
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input = in.readLine(); |
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if (accept != null) { |
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while (!accept.contains(input)) { |
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log(message, Project.MSG_WARN); |
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input = in.readLine(); |
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} |
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} |
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} catch (IOException e) { |
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throw new BuildException("Failed to read input from Console.", e); |
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} |
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} |
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// not quite the original intention of this task but for the sake |
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// of testing ;-) |
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else { |
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if (accept != null && (!accept.contains(input))) { |
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throw new BuildException("Invalid input please reenter."); |
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} |
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} |
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// adopted from org.apache.tools.ant.taskdefs.Property |
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if (addproperty != null) { |
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if (project.getProperty(addproperty) == null) { |
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project.setProperty(addproperty, input); |
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} |
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else { |
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log("Override ignored for " + addproperty, Project.MSG_VERBOSE); |
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} |
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} |
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if (exit != null && exit.contains(input)) { |
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throw new BuildException(exitmessage); |
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} |
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} |
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// copied n' pasted from org.apache.tools.ant.taskdefs.Exit |
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/** |
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* Set a multiline message. |
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*/ |
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public void addText(String msg) { |
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message += |
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ProjectHelper.replaceProperties(project, msg, project.getProperties()); |
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} |
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} |
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Stefan Bodewig