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Common library used by some SonarLint flavors
/*
* Sonar Classloader
* Copyright (C) 2015 SonarSource
* [email protected]
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.classloader;
import java.net.URL;
import java.util.Collection;
class ParentFirstStrategy implements Strategy {
static final Strategy INSTANCE = new ParentFirstStrategy();
private ParentFirstStrategy() {
}
@Override
public Class loadClass(StrategyContext context, String name) throws ClassNotFoundException {
Class clazz = context.loadClassFromSiblings(name);
if (clazz == null) {
clazz = context.loadClassFromParent(name);
if (clazz == null) {
clazz = context.loadClassFromSelf(name);
if (clazz == null) {
throw new ClassNotFoundException(name);
}
}
}
return clazz;
}
@Override
public URL getResource(StrategyContext context, String name) {
URL url = context.loadResourceFromSiblings(name);
if (url == null) {
url = context.loadResourceFromParent(name);
if (url == null) {
url = context.loadResourceFromSelf(name);
}
}
return url;
}
@Override
public void getResources(StrategyContext context, String name, Collection appendTo) {
context.loadResourcesFromSiblings(name, appendTo);
context.loadResourcesFromParent(name, appendTo);
context.loadResourcesFromSelf(name, appendTo);
}
}