/*
* © Copyright IBM Corp. 2012
*
* 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.ibm.commons.runtime.beans;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import com.ibm.commons.runtime.Application;
import com.ibm.commons.util.StringUtil;
/**
* SBT ManagedBean Factory.
*
* This class creates the managed beans when necessary.
*
* @author Mark Wallace
*/
public class MetaResourceBeanFactory extends AbstractXmlConfigBeanFactory {
public static final String DEFAULT_FILENAME = "META-INF/"+ EnvironmentConfig.INSTANCE.getEnvironmentConfigFile();
public MetaResourceBeanFactory() {
this(DEFAULT_FILENAME);
}
public MetaResourceBeanFactory(String fileName) {
setFactories(readFactoriesFromWebResource(fileName));
}
public Factory[] readFactoriesFromWebResource(String fileName) {
if(StringUtil.isEmpty(fileName)) {
return null;
}
// We read the resource
Application app = Application.getUnchecked();
if(app==null) {
return null;
}
ClassLoader loader = app.getClassLoader();
List<Factory> list = new ArrayList<Factory>();
try {
Enumeration<URL> resources = loader.getResources(fileName);
while (resources.hasMoreElements()) {
URL url = resources.nextElement();
Factory[] factories = readFactories(url.openStream());
for (Factory factory : factories) {
list.add(factory);
}
}
} catch (IOException ioe) {
}
return list.toArray(new Factory[list.size()]);
}
}