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/**
* 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.cxf.maven_plugin;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.helpers.CastUtils;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.logging.Log;
import org.apache.maven.project.MavenProject;
/**
* Manages switching to the classloader needed for creating the java sources and restoring the old classloader
* when finished
*/
public class ClassLoaderSwitcher {
private Log log; //NOPMD
private String origClassPath;
private Properties origProps;
private ClassLoader origContextClassloader;
public ClassLoaderSwitcher(Log log) { //NOPMD
this.log = log;
}
/**
* Create and set the classloader that is needed for creating the java sources from wsdl
*
* @param project
* @param useCompileClasspath
* @param classesDir
*/
public Set switchClassLoader(MavenProject project,
boolean useCompileClasspath,
File classesDir) {
List urlList = new ArrayList<>();
StringBuilder buf = new StringBuilder();
Set ret = new LinkedHashSet<>();
try {
urlList.add(classesDir.toURI().toURL());
if (!useCompileClasspath) {
urlList.add(new File(project.getBuild().getOutputDirectory()).toURI().toURL());
}
} catch (MalformedURLException e) {
// ignore
}
buf.append(classesDir.getAbsolutePath());
ret.add(classesDir.toURI());
buf.append(File.pathSeparatorChar);
if (!useCompileClasspath) {
buf.append(project.getBuild().getOutputDirectory());
ret.add(new File(project.getBuild().getOutputDirectory()).toURI());
buf.append(File.pathSeparatorChar);
}
@SuppressWarnings("deprecation")
List> artifacts = useCompileClasspath ? project.getCompileArtifacts() : project.getTestArtifacts();
for (Artifact a : CastUtils.cast(artifacts, Artifact.class)) {
try {
if (a.getFile() != null && a.getFile().exists()) {
urlList.add(a.getFile().toURI().toURL());
buf.append(a.getFile().getAbsolutePath());
ret.add(a.getFile().toURI());
buf.append(File.pathSeparatorChar);
// System.out.println(" " +
// a.getFile().getAbsolutePath());
}
} catch (MalformedURLException e) {
// ignore
}
}
origContextClassloader = Thread.currentThread().getContextClassLoader();
ClassLoader loader = ClassLoaderUtils.getURLClassLoader(urlList, origContextClassloader);
String newCp = buf.toString();
log.debug("Classpath: " + urlList.toString());
origProps = (Properties)System.getProperties().clone();
origClassPath = System.getProperty("java.class.path");
Thread.currentThread().setContextClassLoader(loader);
System.setProperty("java.class.path", newCp);
return ret;
}
/**
* Restore the old classloader
*/
public void restoreClassLoader() {
if (origContextClassloader != null) {
Thread.currentThread().setContextClassLoader(origContextClassloader);
origContextClassloader = null; // don't hold a reference.
}
if (origClassPath != null) {
System.setProperty("java.class.path", origClassPath);
}
if (origProps != null) {
System.setProperties(origProps);
}
}
}
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