| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| * |
| */ |
| public class URLResolver implements ExtensionResolver { |
| private File destfile; |
| private File destdir; |
| private URL url; |
| |
| /** |
| * Sets the URL |
| * @param url the url |
| */ |
| public void setUrl(final URL url) { |
| this.url = url; |
| } |
| |
| /** |
| * Sets the destination file |
| * @param destfile the destination file |
| */ |
| public void setDestfile(final File destfile) { |
| this.destfile = destfile; |
| } |
| |
| /** |
| * Sets the destination directory |
| * @param destdir the destination directory |
| */ |
| public void setDestdir(final File destdir) { |
| this.destdir = destdir; |
| } |
| |
| /** |
| * Returns the file resolved from URL and directory |
| * @param extension the extention |
| * @param project the project |
| * @return file the file resolved |
| * @throws BuildException if the URL is invalid |
| */ |
| public File resolve(final Extension extension, |
| final Project project) throws BuildException { |
| validate(); |
| |
| final File file = getDest(); |
| |
| final Get get = new Get(); |
| get.setProject(project); |
| get.setDest(file); |
| get.setSrc(url); |
| get.execute(); |
| |
| return file; |
| } |
| |
| /* |
| * Gets the destination file |
| */ |
| private File getDest() { |
| File result; |
| if (null != destfile) { |
| result = destfile; |
| } else { |
| final String file = url.getFile(); |
| String filename; |
| if (null == file || file.length() <= 1) { |
| filename = "default.file"; |
| } else { |
| int index = file.lastIndexOf('/'); |
| if (-1 == index) { |
| index = 0; |
| } |
| filename = file.substring(index); |
| } |
| result = new File(destdir, filename); |
| } |
| return result; |
| } |
| |
| /* |
| * Validates URL |
| */ |
| private void validate() { |
| if (null == url) { |
| final String message = "Must specify URL"; |
| throw new BuildException(message); |
| } |
| |
| if (null == destdir && null == destfile) { |
| final String message = "Must specify destination file or directory"; |
| throw new BuildException(message); |
| } else if (null != destdir && null != destfile) { |
| final String message = "Must not specify both destination file or directory"; |
| throw new BuildException(message); |
| } |
| } |
| |
| /** |
| * Returns a string representation of the URL |
| * @return the string representation |
| */ |
| public String toString() { |
| return "URL[" + url + "]"; |
| } |
| } |