/*
* Copyright 2002,2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.taskdefs.optional.extension.resolvers;
import java.io.File;
import java.net.URL;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Get;
import org.apache.tools.ant.taskdefs.optional.extension.Extension;
import org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver;
/**
* Resolver that just returns s specified location.
*
* @author <a href="mailto:peter@apache.org">Peter Donald</a>
* @author <a href="mailto:jeff@socialchange.net.au">Jeff Turner</>
* @version $Revision: 1.6.2.3 $ $Date: 2004/02/09 22:12:31 $
*/
public class URLResolver
implements ExtensionResolver {
private File m_destfile;
private File m_destdir;
private URL m_url;
public void setUrl(final URL url) {
m_url = url;
}
public void setDestfile(final File destfile) {
m_destfile = destfile;
}
public void setDestdir(final File destdir) {
m_destdir = destdir;
}
public File resolve(final Extension extension,
final Project project)
throws BuildException {
validate();
final File file = getDest();
final Get get = (Get) project.createTask("get");
get.setDest(file);
get.setSrc(m_url);
get.execute();
return file;
}
private File getDest() {
if (null != m_destfile) {
return m_destfile;
} else {
final String file = m_url.getFile();
String filename = null;
if (null == file || file.length() <= 1) {
filename = "default.file";
} else {
int index = file.lastIndexOf('/');
if (-1 == index) {
index = 0;
}
filename = file.substring(index);
}
return new File(m_destdir, filename);
}
}
private void validate() {
if (null == m_url) {
final String message = "Must specify URL";
throw new BuildException(message);
}
if (null == m_destdir && null == m_destfile) {
final String message = "Must specify destination file or directory";
throw new BuildException(message);
} else if (null != m_destdir && null != m_destfile) {
final String message = "Must not specify both destination file or directory";
throw new BuildException(message);
}
}
public String toString() {
return "URL[" + m_url + "]";
}
}