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Posted to dev@ant.apache.org by st...@apache.org on 2001/12/25 07:13:41 UTC
cvs commit: jakarta-ant/src/main/org/apache/tools/ant/taskdefs LoadFile.java
stevel 01/12/24 22:13:41
Added: src/main/org/apache/tools/ant/taskdefs LoadFile.java
Log:
new loadfile task
Revision Changes Path
1.1 jakarta-ant/src/main/org/apache/tools/ant/taskdefs/LoadFile.java
Index: LoadFile.java
===================================================================
/*
* 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", "Ant", 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 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.
* ====================================================================
*
* 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.Task;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectHelper;
import org.apache.tools.ant.types.EnumeratedAttribute;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.BufferedInputStream;
/**
* Load a file into a property
*
* @author Steve Loughran
* @created 10 December 2001
*/
public class LoadFile extends Task {
/**
* source file, usually null
*/
private File srcFile = null;
/**
* what to do when it goes pear-shaped
*/
private boolean failOnError = true;
/**
* Encoding to use for filenames, defaults to the platform's default
* encoding.
*/
private String encoding = null;
/**
* name of property
*/
private String property = null;
/**
* Encoding to use for filenames, defaults to the platform's default
* encoding. <p>
*
* For a list of possible values see <a href="http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html">
* http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html
* </a>.</p>
*
* @param encoding The new Encoding value
*/
public void setEncoding(String encoding) {
this.encoding = encoding;
}
/**
* Sets the Property attribute of the LoadFile object
*
* @param property The new Property value
*/
public void setProperty(String property) {
this.property = property;
}
/**
* Sets the srcfile attribute.
*
* @param srcFile The new SrcFile value
*/
public void setSrcFile(File srcFile) {
this.srcFile = srcFile;
}
/**
* Sets the Failonerror attribute of the LoadFile object
*
* @param fail The new Failonerror value
*/
public void setFailonerror(boolean fail) {
failOnError = fail;
}
/**
* read in a source file to a property
*
* @exception BuildException if something goes wrong with the build
*/
public void execute()
throws BuildException {
//validation
if (srcFile == null) {
throw new BuildException("source file not defined");
}
if (property == null) {
throw new BuildException("output property not defined");
}
FileInputStream fis = null;
BufferedInputStream bis = null;
InputStreamReader instream = null;
log("loading "+srcFile+" into property "+property,Project.MSG_VERBOSE);
try {
long len = srcFile.length();
log("file size = "+len,Project.MSG_DEBUG);
//discard most of really big files
if (len > Integer.MAX_VALUE) {
log("this file is far to big to load completely");
}
int size=(int) len;
char[] buffer = new char[size];
//open up the file
fis = new FileInputStream(srcFile);
bis = new BufferedInputStream(fis);
if (encoding == null) {
instream = new InputStreamReader(bis);
}
else {
instream = new InputStreamReader(bis, encoding);
}
instream.read(buffer);
String text = new String(buffer);
project.setNewProperty(property, text);
log("loaded "+buffer.length+" characters",Project.MSG_VERBOSE);
log(property+" := "+text,Project.MSG_DEBUG);
} catch (IOException ioe) {
String message = "Unable to load file: " + ioe.toString();
if (failOnError) {
throw new BuildException(message, ioe, location);
}
else {
log(message, Project.MSG_ERR);
}
} finally {
try {
if (fis != null) {
fis.close();
}
} catch (IOException ioex) {
}
}
}
//end class
}
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