jvanzyl 01/10/20 18:15:08
Added: src/tdk/task/org/apache/tdk/transformer
SourceTransformer.java Transformation.java
Transformations.java TransformationsDigester.java
Log:
- working version of the source migration task.
Revision Changes Path
1.1
jakarta-turbine-tdk/src/tdk/task/org/apache/tdk/transformer/SourceTransformer.java
Index: SourceTransformer.java
===================================================================
package org.apache.tdk.task.transformer;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 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 acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Turbine" 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",
* "Apache Turbine", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* 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/>.
*/
import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import org.apache.oro.text.perl.Perl5Util;
import org.apache.velocity.util.StringUtils;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Task;
/**
* @author <a href="mailto:[EMAIL PROTECTED]";>Jason van Zyl</a>
*
* @version $Id: SourceTransformer.java,v 1.1 2001/10/21 01:15:07 jvanzyl Exp $
*/
public class SourceTransformer
extends Task
{
/**
* Source file currently being migrated.
*/
protected String originalSourceFile;
/**
* Regular expression tool
*/
protected Perl5Util perl;
/**
* Path separator property
*/
protected String pathSeparator = File.separator;
/**
* Transformations that the source files
* must undergoe.
*/
protected Transformations transformations;
/**
* File to operate on, may be a directory.
*/
private File srcDir;
private File targetDir;
private File descriptor;
public void setSrcDir(File srcDir)
{
this.srcDir = srcDir;
}
public File getSrcDir()
{
return srcDir;
}
public void setTargetDir(File targetDir)
{
this.targetDir = targetDir;
}
public File getTargetDir()
{
return targetDir;
}
public void setDescriptor(File descriptor)
{
this.descriptor = descriptor;
}
/**
* Iterate through the set of find/replace regexes
* that will convert a given source tree from one
*/
public void execute()
throws BuildException
{
if (!srcDir.exists())
{
throw new BuildException(
"The specified srcDir does not exist: " + srcDir);
}
// Retrieve the transformations to perform on source files.
TransformationsDigester td = new TransformationsDigester();
try
{
transformations = (Transformations) td.parse(descriptor);
}
catch (Exception e)
{
throw new BuildException(e);
}
DirectoryScanner ds = new DirectoryScanner();
ds.setBasedir(srcDir);
ds.addDefaultExcludes();
ds.scan();
String[] files = ds.getIncludedFiles();
for (int i = 0; i < files.length; i++)
{
writeSource(files[i], srcDir, targetDir);
}
}
/**
* Write out the converted template to the given named file
* and base directory.
*/
private void writeSource(String file, File srcDir, File targetDir)
{
log("Converting " + file + "...");
String sourceFile;
String sourceDir;
String newSourceFile;
File outputDirectory;
sourceFile = srcDir + pathSeparator + file;
sourceDir = targetDir + pathSeparator +
file.substring(0, file.lastIndexOf(pathSeparator));
outputDirectory = new File(sourceDir);
if (outputDirectory.exists() == false)
{
outputDirectory.mkdirs();
}
newSourceFile = targetDir + pathSeparator + file;
String convertedSourceFile = convertSourceFile(sourceFile);
try
{
FileWriter fw = new FileWriter(newSourceFile);
fw.write(convertedSourceFile);
fw.close();
}
catch (Exception e)
{
throw new BuildException(
"Problem transforming source file: " + sourceFile);
}
}
/**
* Apply find/replace regexes to our Turbine source file.
*
* @param String source file to migrate.
* @return String migrated source file.
*/
public String convertSourceFile(String sourceFile)
{
originalSourceFile = StringUtils.fileContentsToString(sourceFile);
perl = new Perl5Util();
Iterator i = transformations.getTransformations().iterator();
System.out.println(transformations.getTransformations().size());
while (i.hasNext())
{
Transformation t = (Transformation) i.next();
String target = t.getTarget();
String result = t.getResult();
log("Looking for " + target + " and replacing with " + result);
while (perl.match("/" + target + "/", originalSourceFile))
{
originalSourceFile = perl.substitute(
"s/" + target + "/" + result + "/", originalSourceFile);
}
}
return originalSourceFile;
}
}
1.1
jakarta-turbine-tdk/src/tdk/task/org/apache/tdk/transformer/Transformation.java
Index: Transformation.java
===================================================================
package org.apache.tdk.task.transformer;
/**
* RegexTransform represents a transformation to
* be performed based on a target regex to find in
* a source file and a regex which represents the
* transformation to make.
*/
public class Transformation
{
/**
* Target regex to look for.
*/
private String target;
/**
* Regex to used to result the target.
*/
private String result;
/**
* Set the target regex.
*
* @param String targetRegex
*/
public void setTarget(String target)
{
this.target = target;
}
/**
* Get the target .
*
* @return String target
*/
public String getTarget()
{
return target;
}
/**
* Set the result .
*
* @param String result
*/
public void setResult(String result)
{
this.result = result;
}
/**
* Get the result .
*
* @return String result .
*/
public String getResult()
{
return result;
}
}
1.1
jakarta-turbine-tdk/src/tdk/task/org/apache/tdk/transformer/Transformations.java
Index: Transformations.java
===================================================================
package org.apache.tdk.task.transformer;
import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
/**
*/
public class Transformations
{
private ArrayList transformations = new ArrayList();
public void addTransformation(Transformation t)
{
transformations.add(t);
}
public List getTransformations()
{
return transformations;
}
}
1.1
jakarta-turbine-tdk/src/tdk/task/org/apache/tdk/transformer/TransformationsDigester.java
Index: TransformationsDigester.java
===================================================================
package org.apache.tdk.task.transformer;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.apache.commons.digester.Digester;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* @author <a href="mailto:[EMAIL PROTECTED]";>Jason van Zyl</a>
* @version $Id: TransformationsDigester.java,v 1.1 2001/10/21 01:15:07 jvanzyl Exp $
*/
public class TransformationsDigester
extends Digester
{
/**
* Have we been configured yet?
*/
protected boolean configured = false;
protected String transformationsClass =
"org.apache.tdk.task.transformer.Transformations";
protected String transformationClass =
"org.apache.tdk.task.transformer.Transformation";
/**
* Parse the content of the specified file using this Digester. Returns
* the root element from the object stack.
*
* @param file File containing the XML data to be parsed
*
* @exception IOException if an input/output error occurs
* @exception SAXException if a parsing exception occurs
*/
public Object parse(File file)
throws IOException, SAXException
{
configure();
return (super.parse(file));
}
/**
* Parse the content of the specified input source using this Digester.
* Returns the root element from the object stack.
*
* @param input Input source containing the XML data to be parsed
*
* @exception IOException if an input/output error occurs
* @exception SAXException if a parsing exception occurs
*/
public Object parse(InputSource input)
throws IOException, SAXException
{
configure();
return (super.parse(input));
}
/**
* Parse the content of the specified input stream using this Digester.
* Returns the root element from the object stack.
*
* @param input Input stream containing the XML data to be parsed
*
* @exception IOException if an input/output error occurs
* @exception SAXException if a parsing exception occurs
*/
public Object parse(InputStream input)
throws IOException, SAXException
{
configure();
return (super.parse(input));
}
/**
* Parse the content of the specified URI using this Digester.
* Returns the root element from the object stack.
*
* @param uri URI containing the XML data to be parsed
*
* @exception IOException if an input/output error occurs
* @exception SAXException if a parsing exception occurs
*/
public Object parse(String uri) throws IOException, SAXException
{
configure();
return (super.parse(uri));
}
/**
* Configure the parsing rules that will be used to process RSS input.
*/
protected void configure()
{
if (configured)
{
return;
}
// Deal with the parent transformations class.
addObjectCreate("transformations", transformationsClass);
addSetProperties("transformations");
// Deal with each child transformation.
addObjectCreate("transformations/transformation", transformationClass);
addSetNext("transformations/transformation", "addTransformation",
transformationClass);
addSetProperties("transformations/transformation");
// Mark this digester as having been configured
configured = true;
}
}
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