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From: "Conor MacNeill" <conor@cognet.com.au>
To: <ant-dev@jakarta.apache.org>
Subject: RE: multiple files with Replace task
Date: Fri, 23 Jun 2000 02:07:37 +1000
Message-ID: <001c01bfdc63$fbf147b0$80dc1fcb@cognet.com.au>
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Todd,

Charles Tewksbury posted a task for this (which I have attached below). I'll
try to have a look at committing it this weekend. Charles' posting is copied
below:

Conor


> -----Original Message-----
> From: Charles Tewksbury [mailto:tewks@adhesive.com]
> Sent: Wednesday, 17 May 2000 2:32
> To: ant-dev@jakarta.apache.org
> Subject: ReplaceMultiple Task
>
>
> Greetings,
>
> I have included a new taskdef for replacing a string in all files in a
> directory and subdirectories.  It is generally based on the Replace task.
>
> Usage:
>     <replacemultiple
> 	basedir="${some.dir}"
> 	token="lookForTerm"
> 	value="replaceWithTerm"
>      />
>
> It actually extends MatchingTask vice Task and the default.properties file
> would be modified by adding:
> 	replacemultiple=org.apache.tools.ant.taskdefs.ReplaceMultiple
>
> Being relatively new to ANT, I'm not sure if this taskdef has already been
> built and is awaiting inclusion but since I can't find one in the
> repository, I am sending this out for review.
>
> - Charles W. Tewksbury
>
>
>




> -----Original Message-----
> From: Todd McGrath [mailto:toddmcgrath@yahoo.com]
> Sent: Friday, 23 June 2000 1:31
> To: ant-dev@jakarta.apache.org
> Subject: multiple files with Replace task
>
>
> Hi everybody-
>
> I need replace multiple strings in *multiple* .java
> files, but unable to use the Replace task.  It seems
> as if I need to specify each individual file and
> cannot work on a directory tree of files?
>
> Has anyone else ran into this?
>
> Any thoughts?
>
> (I don't think KeySubst task will work, because file
> name needs ot remain the same)
>
> I'll be happy to try to write a new task for this type
> of functionality, but wanted to check with the list
> first.
>
> -Todd
>
> __________________________________________________
> Do You Yahoo!?
> Send instant messages with Yahoo! Messenger.
> http://im.yahoo.com/
>

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/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights=20
 * 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.=20
 *
 * 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: =20
 *       "This product includes software developed by the=20
 *        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=20
 *    permission, please contact apache@apache.org.
 *
 * 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.
 * =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
 *
 * 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/>.
 */

package org.apache.tools.ant.taskdefs;

import org.apache.tools.ant.*;
import java.io.*;
import java.util.*;

/**
 * Replaces all the occurrences of the given string token with the given
 * string value of the files within the directory paths.
 *
 * @author Charles Tewksbury <a =
href=3D"mailto:tewks@adhesive.com">tewks@adhesive.com</a>
 */
public class ReplaceMultiple extends MatchingTask {
   =20
    private String token =3D null;
    private String value =3D "";
    private File baseDir =3D null;

   =20
    /**
     * Do the execution.
     */
    public void execute() throws BuildException {
       =20
        project.log("Replacing " + token + " --> " + value);


        if (baseDir =3D=3D null) {
            throw new BuildException("basedir attribute must be set!");
        }
        if (!baseDir.exists()) {
            throw new BuildException("basedir does not exist!");
        }


	DirectoryScanner ds =3D super.getDirectoryScanner(baseDir);
        String[] srcs =3D ds.getIncludedFiles();


        if (srcs =3D=3D null || token =3D=3D null ) {
            project.log("File and token must not be null");
            return;           =20
        }
       =20
        try {
	   for(int i=3D0; i<srcs.length; i++) {
            File inFile =3D new File(baseDir,srcs[i]);=20
	    File outFile =3D new File(baseDir,srcs[i]+".temp");
            BufferedReader br =3D new BufferedReader(new =
FileReader(inFile));
            BufferedWriter bw =3D new BufferedWriter(new =
FileWriter(outFile));

            String line;
           =20
            while (true) {
                line =3D br.readLine();
                if (line =3D=3D null) break;
                if (line.length() !=3D 0) bw.write(replace(line));
                bw.newLine();
            }
            =20
            bw.flush();
            bw.close();
            br.close();
            inFile.delete();
            outFile.renameTo(inFile);
	  }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }      =20
    }
   =20
    /**
     * Set the source files path.
     */
    public void setBaseDir(String baseDirname) {
        baseDir =3D project.resolveFile(baseDirname);
    }



    /**
     * Set the string token to replace.
     */
    public void setToken(String token) {
        this.token =3D token;
    }

    /**
     * Set the string value to use as token replacement.
     */
    public void setValue(String value) {
        this.value =3D value;
    }

    /**
     * Perform the token substitution.
     */   =20
    private String replace (String orig) {
        StringBuffer buffer =3D new StringBuffer();
        int start =3D 0, end =3D 0;
       =20
        while ((end =3D orig.indexOf(token, start)) > -1) {
            buffer.append(orig.substring(start, end));
            buffer.append(value);
            start =3D end + token.length();
        }
       =20
        buffer.append(orig.substring(start));
       =20
        return buffer.toString();           =20
    }
}

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