// Copyright 2010 Google Inc. // // 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 com.google.enterprise.connector.util.database.testing; import com.google.enterprise.connector.spi.DatabaseResourceBundle; import java.io.File; import java.net.MalformedURLException; import java.net.URL; /** * A {@code ClassLoader} that looks for resources relative to the * specified resources directory, or the current working directory, * if none is specified. * <p> * <strong>Note:</strong> This only overrides the one method used to locate * {@link DatabaseResourceBundle DatabaseResourceBundles}, so it is not a * good candidate to stand on its own. * <p> * Connector developers may want to use this to implement unit tests. * * @since 2.8 */ public class TestResourceClassLoader extends ClassLoader { private final File resourceDir; public TestResourceClassLoader(File resourceDir) { this.resourceDir = (resourceDir == null) ? new File(System.getProperty("user.dir")) : resourceDir; } @Override public URL getResource(String name) { try { File file = new File(resourceDir, name); if (file.exists() && file.isFile()) { return file.toURI().toURL(); } } catch (MalformedURLException e) { // Fall through and look on classpath. } return this.getClass().getClassLoader().getResource(name); } }