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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.tuscany.core.util;
import java.io.File;
import java.net.URL;
import java.net.MalformedURLException;
import java.net.URLClassLoader;
/**
* Functions to create & manipulate classloaders.
*
* @version $$Rev$$ $$Date$$
*/
public final class ClassLoaderHelper {
/**
* Hide constructor
*/
private ClassLoaderHelper() {
}
/**
* Create a classloader for the supplied classpath.
*
* @param path a list of file/directory names separated by the platform path separator
* @param parent the parent for the new classloader
* @return a classloader that will load classes from the supplied path
*/
public static ClassLoader createClassLoader(ClassLoader parent, String path) {
String[] files = path.split(File.pathSeparator);
return createClassLoader(parent, files);
}
/**
* Create a classloader for a classpath supplied as individual file names.
*
* @param files a list of file/directory names
* @param parent the parent for the new classloader
* @return a classloader that will load classes from the supplied path
*/
public static ClassLoader createClassLoader(ClassLoader parent, String[] files) {
URL[] urls = new URL[files.length];
for (int i = 0; i < files.length; i++) {
try {
File file = new File(files[i]);
urls[i] = file.toURI().toURL();
} catch (MalformedURLException e) {
// just ignore this value
continue;
}
}
return new URLClassLoader(urls, parent);
}
/**
* Create a classloader for a classpath supplied as a list of files.
*
* @param files a list of files
* @param parent the parent for the new classloader
* @return a classloader that will load classes from the supplied path
*/
public static ClassLoader createClassLoader(ClassLoader parent, File[] files) {
URL[] urls = new URL[files.length];
for (int i = 0; i < files.length; i++) {
try {
File file = files[i];
urls[i] = file.toURI().toURL();
} catch (MalformedURLException e) {
continue;
}
}
return new URLClassLoader(urls, parent);
}
}
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