org.apache.xbean.classpath.SunURLClassPath Maven / Gradle / Ivy
/**
* 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.xbean.classpath;
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
public abstract class SunURLClassPath implements ClassPath {
public static ClassLoader getContextClassLoader() {
return Thread.currentThread().getContextClassLoader();
}
private java.lang.reflect.Field ucpField;
protected void addJarToPath(final URL jar, final URLClassLoader loader) throws Exception {
this.getURLClassPath(loader).addURL(jar);
}
protected void addJarsToPath(final File dir, final URLClassLoader loader) throws Exception {
if (dir == null || !dir.exists()) return;
//System.out.println("DIR "+dir);
// Get the list of jars and zips
String[] jarNames = dir.list(new java.io.FilenameFilter() {
public boolean accept(File dir, String name) {
//System.out.println("FILE "+name);
return (name.endsWith(".jar") || name.endsWith(".zip"));
}
});
// Create URLs from them
final URL[] jars = new URL[jarNames.length];
for (int j = 0; j < jarNames.length; j++) {
jars[j] = new File(dir, jarNames[j]).toURI().toURL();
}
sun.misc.URLClassPath path = getURLClassPath(loader);
for (int i = 0; i < jars.length; i++) {
//System.out.println("URL "+jars[i]);
path.addURL(jars[i]);
}
}
protected sun.misc.URLClassPath getURLClassPath(URLClassLoader loader) throws Exception {
return (sun.misc.URLClassPath) getUcpField().get(loader);
}
private java.lang.reflect.Field getUcpField() throws Exception {
if (ucpField == null) {
// Add them to the URLClassLoader's classpath
ucpField = URLClassLoader.class.getDeclaredField("ucp");
ucpField.setAccessible(true);
}
return ucpField;
}
}