/*
* 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.myfaces.extensions.cdi.core.impl.util;
import org.apache.myfaces.extensions.cdi.core.api.activation.ExpressionActivated;
import org.apache.myfaces.extensions.cdi.core.api.interpreter.ExpressionInterpreter;
import org.apache.myfaces.extensions.cdi.core.api.util.ClassUtils;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Helper methods for handling {@link ExpressionActivated}
*/
public class ActivationUtils
{
public static boolean isActivated(Class<?> annotatedClass, Class defaultExpressionInterpreterClass)
{
ExpressionActivated expressionActivated = annotatedClass.getAnnotation(ExpressionActivated.class);
if (expressionActivated == null)
{
return true;
}
String expressions = expressionActivated.value();
Class<? extends ExpressionInterpreter> interpreterClass = expressionActivated.interpreter();
if(interpreterClass.equals(ExpressionInterpreter.class))
{
interpreterClass = defaultExpressionInterpreterClass;
}
ExpressionInterpreter<String, Boolean> expressionInterpreter =
ClassUtils.tryToInstantiateClass(interpreterClass);
if(expressionInterpreter == null)
{
Logger logger = Logger.getLogger(ActivationUtils.class.getName());
if(logger.isLoggable(Level.WARNING))
{
logger.warning("can't instantiate " + interpreterClass.getClass().getName());
}
return true;
}
expressions = "configName:" + expressionActivated.configName() + ";" + expressions;
return expressionInterpreter.evaluate(expressions);
}
}