/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.server.commons.dmr;
import org.jboss.dmr.ModelNode;
import org.jboss.modules.ModuleIdentifier;
/**
* Utility methods for extracting values from a {@link ModelNode}.
* @author Paul Ferraro
*/
public class ModelNodes {
/**
* Returns the value of the node as a string, or null if the node is undefined.
* @param value a model node
* @return the value of the node as a string, or null if the node is undefined.
*/
public static String asString(ModelNode value) {
return asString(value, null);
}
/**
* Returns the value of the node as a string, or the specified default value if the node is undefined.
* @param value a model node
* @return the value of the node as a string, or the specified default value if the node is undefined.
*/
public static String asString(ModelNode value, String defaultValue) {
return value.isDefined() ? value.asString() : defaultValue;
}
/**
* Returns the value of the node as a float, or null if the node is undefined.
* @param value a model node
* @return the value of the node as a float, or null if the node is undefined.
*/
public static float asFloat(ModelNode value) {
return Double.valueOf(value.asDouble()).floatValue();
}
/**
* Returns the value of the node as a string, or the specified default value if the node is undefined.
* @param value a model node
* @return the value of the node as a string, or the specified default value if the node is undefined.
*/
public static float asFloat(ModelNode value, float defaultValue) {
return Double.valueOf(value.asDouble(defaultValue)).floatValue();
}
/**
* Returns the value of the node as an Enum value, or null if the node is undefined.
* @param value a model node
* @return the value of the node as an Enum, or null if the node is undefined.
*/
public static <E extends Enum<E>> E asEnum(ModelNode value, Class<E> targetClass) {
return asEnum(value, targetClass, null);
}
/**
* Returns the value of the node as an Enum value, or the specified default value if the node is undefined.
* @param value a model node
* @return the value of the node as an Enum, or the specified default if the node is undefined.
*/
public static <E extends Enum<E>> E asEnum(ModelNode value, Class<E> targetClass, E defaultValue) {
return value.isDefined() ? Enum.valueOf(targetClass, value.asString()) : defaultValue;
}
/**
* Returns the value of the node as a module identifier, or null if the node is undefined.
* @param value a model node
* @return the value of the node as a module identifier, or null if the node is undefined.
*/
public static ModuleIdentifier asModuleIdentifier(ModelNode value) {
return asModuleIdentifier(value, null);
}
/**
* Returns the value of the node as a module identifier, or the specified default if the node is undefined.
* @param value a model node
* @return the value of the node as a module identifier, or the specified default if the node is undefined.
*/
public static ModuleIdentifier asModuleIdentifier(ModelNode value, ModuleIdentifier defaultValue) {
return value.isDefined() ? ModuleIdentifier.fromString(value.asString()) : defaultValue;
}
private ModelNodes() {
// Hide
}
}