/*
* 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.openjpa.lib.conf.test;
import java.io.InputStream;
import java.io.IOException;
import java.net.URL;
import java.util.MissingResourceException;
import java.util.Properties;
import org.apache.openjpa.lib.conf.AbstractProductDerivation;
import org.apache.openjpa.lib.conf.Configuration;
import org.apache.openjpa.lib.conf.ConfigurationProvider;
import org.apache.openjpa.lib.conf.MapConfigurationProvider;
import org.apache.openjpa.lib.conf.ProductDerivation;
/**
* A Product Derivation to test loading of global and default configuration with
* System settings. Reads its global from a file specified by
* <code>"openjpatest.properties"</code> system property.
*
* @author Pinaki Poddar
* @author Abe White
*/
public class ConfigurationTestProductDerivation
extends AbstractProductDerivation {
public static boolean closed = false;
public int getType() {
return ProductDerivation.TYPE_PRODUCT;
}
public void beforeConfigurationClose(Configuration conf) {
closed = true;
}
public ConfigurationProvider loadGlobals(ClassLoader loader)
throws IOException {
return load(null, loader);
}
public ConfigurationProvider load(String rsrc, ClassLoader loader)
throws IOException {
if (rsrc == null)
rsrc = System.getProperty("openjpatest.properties");
if (rsrc == null || !rsrc.endsWith(".properties"))
return null;
URL url = findResource(rsrc, loader);
if (url == null)
throw new MissingResourceException(rsrc, getClass().getName(),
rsrc);
InputStream in = url.openStream();
Properties props = new Properties();
if (in != null) {
try {
props.load(in);
return new MapConfigurationProvider(props);
} finally {
try { in.close(); } catch (Exception e) {}
}
}
return null;
}
/**
* Locate the given resource.
*/
private URL findResource(String rsrc, ClassLoader loader)
throws IOException {
if (loader != null)
return loader.getResource(rsrc);
// in jbuilder the classloader can be null
URL url = null;
loader = getClass().getClassLoader();
if (loader != null)
url = loader.getResource(rsrc);
if (url == null) {
loader = Thread.currentThread().getContextClassLoader();
if (loader != null)
url = loader.getResource(rsrc);
}
if (url == null) {
loader = ClassLoader.getSystemClassLoader();
if (loader != null)
url = loader.getResource(rsrc);
}
return url;
}
}