/**
* 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 javax.el;
class ELUtils {
private static volatile ExpressionFactory cachedExpressionFactory;
private static boolean cachedExpressionFactoryEnabled = Boolean.valueOf(System.getProperty("org.apache.geronimo.spec.el.useCachedExpressionFactory", "true"));
public static ExpressionFactory getCachedExpressionFactory() {
return cachedExpressionFactory;
}
public static boolean isCachedExpressionFactoryEnabled() {
return cachedExpressionFactoryEnabled;
}
public static void setCachedExpressionFactory(ExpressionFactory expressionFactory) {
cachedExpressionFactory = expressionFactory;
}
public static String coerceToString(Object obj) {
if (obj == null) {
return "";
} else if (obj instanceof String) {
return (String) obj;
} else if (obj instanceof Enum<?>) {
return ((Enum<?>) obj).name();
} else {
return obj.toString();
}
}
}