/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.jboss.seam.faces.projectstage;
import javax.faces.application.ProjectStage;
import javax.naming.InitialContext;
import javax.naming.NamingException;
/**
* Implementation of {@link ProjectStageDetector} that performs a JNDI lookup to get the current project stage.
*
* @author Christian Kaltepoth <christian@kaltepoth.de>
*
*/
public class JNDIProjectStageDetector implements ProjectStageDetector {
@Override
public int getPrecedence() {
return 50;
}
@Override
public ProjectStage getProjectStage() {
// try to get the name of the project stage from JNDI
String projectStageName = getProjectStageNameFromJNDI();
// lookup the correct enum for the value found via JNDI
if (projectStageName != null && projectStageName.length() > 0) {
for (ProjectStage stage : ProjectStage.values()) {
if (stage.name().equalsIgnoreCase(projectStageName)) {
return stage;
}
}
}
// no result
return null;
}
/**
* Performs a JNDI lookup to obtain the current project stage. The method use the standard JNDI name for the JSF project
* stage for the lookup
*
* @return name bound to JNDI or <code>null</code>
*/
private String getProjectStageNameFromJNDI() {
try {
InitialContext context = new InitialContext();
Object obj = context.lookup(ProjectStage.PROJECT_STAGE_JNDI_NAME);
if (obj != null) {
return obj.toString().trim();
}
} catch (NamingException e) {
// ignore
}
return null;
}
}