/*
* Copyright 2011, 2012 France Télécom
*
* 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.
*
* Author is Julien Wajsberg <julien.wajsberg@orange.com>
*/
package com.orange.wro.taglib.config;
import java.util.HashMap;
import java.util.Map;
import ro.isdc.wro.model.WroModel;
import ro.isdc.wro.model.group.Group;
/**
* This singleton keeps the minimized and unminimized files for
* each group.
*
* @author Julien Wajsberg
*/
public class WroConfig {
/* package */ static WroConfig instance;
private Map<String, FilesGroup> groups;
private WroTagLibConfig wroTagLibConfig;
private boolean initialized = false;
public static WroConfig getInstance() throws ConfigurationException {
if (instance == null) {
throw new ConfigurationException("The instance was not created.");
}
/* lazy initialization because we need to be in a request thread */
synchronized(instance) {
if (!instance.initialized) {
instance.loadConfig();
instance.initialized = true;
}
}
return instance;
}
private void loadConfig() throws ConfigurationException {
WroModel model = this.wroTagLibConfig.getModel(
this.wroTagLibConfig.getServletContextAttributeHelper()
);
groups = new HashMap<String, FilesGroup>();
for (Group group: model.getGroups()) {
String groupName = group.getName();
FilesGroup filesGroup = new FilesGroup(groupName, new GroupLoader(instance.wroTagLibConfig, group));
groups.put(groupName, filesGroup);
}
}
/* package */static synchronized void createInstance(WroTagLibConfig wroTagLibConfig) {
if (instance == null) {
instance = new WroConfig();
instance.wroTagLibConfig = wroTagLibConfig;
}
}
public FilesGroup getGroup(String groupName) {
if (initialized) {
return groups.get(groupName);
} else {
throw new ConfigurationException(
"WroConfig was not correctly initialized");
}
}
public WroTagLibConfig getWroTagLibConfig() {
return this.wroTagLibConfig;
}
}