gradle-master/subprojects/core/src/main/java/org/gradle/api/internal/plugins/ClassloaderBackedPluginDescriptorLocator.java
/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed 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.gradle.api.internal.plugins;

import java.net.URL;

public class ClassloaderBackedPluginDescriptorLocator implements PluginDescriptorLocator {

    private final ClassLoader classLoader;

    public ClassloaderBackedPluginDescriptorLocator(ClassLoader classLoader) {
        this.classLoader = classLoader;
    }

    @Override
    public PluginDescriptor findPluginDescriptor(String pluginId) {
        URL resource = classLoader.getResource("META-INF/gradle-plugins/" + pluginId + ".properties");
        if (resource == null) {
            return null;
        } else {
            return new PluginDescriptor(resource);
        }
    }

}
