The attached class contains a custom task that will do the trick. The javadoc
explains how to use it.
Gerard
On Wednesday 19 January 2005 16:36, Dick, Brian E. wrote:
> I need to remove the extension from a file name. The basename task
> almost works when specifying the suffix attribute. However, I don't know
> the value of the suffix.
>
> Does anyone know how I can remove the extension (suffix) from a file
> name?
>
> Later,
> BEDick
>
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/*
* 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 GREEN
* LIGHT CONSULTANCY B.V. 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.
*
* $Lib $
*/
package nl.glc.tools.ant.classname;
import java.io.File;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
/**
* Title: ClassName<br>
* Description: This task can accept the following attributes: Sets a property to the class name of a specified
* file, optionally minus a suffix.
*
* <ul>
* <li>
* file
* </li>
* <li>
* property
* </li>
* <li>
* suffix
* </li>
* <li>
* prefix
* </li>
* <li>
* separator
* </li>
* </ul>
*
* The <b>file</b> and <b>property</b> attributes are required. The <b>suffix</b> attribute can be
* specified either with or without the ".", and the result will be the same (ie., the
* returned file name will be minus the .suffix).
*
* <p>
* When this task executes, it will set the specified property to the value of the last element in
* the specified file. If file is a directory, the classname will be the last directory element.
* If file is a full-path filename, the basename will be the simple file name. If a suffix is
* specified, and the specified file ends in that suffix, the basename will be the simple file
* name without the suffix. If a prefix is specified, and the specified file contains the prefix,
* the classname will be the file name without everything preceding and including the
* prefix. If "\"es occur in the resulting classname, they will be substituted for
* "/"es.
* If separator is specified, instead of substituting all "\"es for "/"es, all
* "\"es <b>AND</b> all "/"es will be substituted for the separator.
* </p>
* Copyright: Copyright (c) 2004<br>
* Company: GLC eProfessionals B.V.<br>
*
* @author Jan R. Zeinstra
* @version $Id $
*/
public class ClassName
extends Task
{
//~ Methods ····················································································
/**
* file or directory to get base name from
*
* @param aFile file or directory to get base name from
*/
public void setFile(File aFile)
{
this.theFile = aFile;
}
/**
* Property to set base name to.
*
* @param aProperty name of property
*/
public void setProperty(String aProperty)
{
this.theProperty = aProperty;
}
/**
* Optional suffix to remove from base name.
*
* @param aSuffix suffix to remove from base name
*/
public void setSuffix(String aSuffix)
{
this.theSuffix = aSuffix;
}
/**
* Optional prefix to remove from classname.
*
* @param aPrefix aPrefix to remove from classname
*/
public void setPrefix(String aPrefix)
{
this.thePrefix = aPrefix;
}
/**
* Optional separator to use for separating path entries in the classname.
*
* @param aSeparator separator to use
*/
public void setSeparator(String aSeparator)
{
this.theSeparator = aSeparator;
}
/**
* do the work
*
* @throws BuildException if required attributes are not supplied property and attribute are
* required attributes
*/
public void execute()
throws BuildException
{
if (theProperty == null)
{
throw new BuildException("property attribute required",
getLocation());
}
if (theFile == null)
{
throw new BuildException("file attribute required",
getLocation());
}
String myValue = null;
if(thePrefix == null)
{
myValue = theFile.getName();
}
else
{
myValue = theFile.getAbsolutePath();
int myPrefixIndex = myValue.indexOf(thePrefix);
if(myPrefixIndex!=-1)
{
myValue = myValue.substring(myPrefixIndex + thePrefix.length());
}
else
{
myValue = theFile.getName();
}
}
if ((theSuffix != null) && myValue.endsWith(theSuffix))
{
// if the suffix does not starts with a '.' and the
// char preceding the suffix is a '.', we assume the user
// wants to remove the '.' as well (see docs)
int pos = myValue.length() - theSuffix.length();
if ((pos > 0) && (theSuffix.charAt(0) != '.') && (myValue.charAt(pos - 1) == '.'))
{
pos--;
}
myValue = myValue.substring(0, pos);
if(theSeparator == null)
{
myValue = myValue.replaceAll("\\\\","/");
if(myValue.startsWith("/"))
{
myValue = myValue.substring(1);
}
}
else
{
myValue = myValue.replaceAll("\\\\",theSeparator);
myValue = myValue.replaceAll("/",theSeparator);
if(myValue.startsWith(theSeparator))
{
myValue = myValue.substring(1);
}
}
}
getProject().setNewProperty(theProperty, myValue);
}
//~ Instance variables ·········································································
private File theFile;
private String theProperty;
private String theSuffix;
private String thePrefix;
private String theSeparator;
}
/*
* Formatted according to GLC Coding Convention.
*/
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