org.codehaus.groovy.vmplugin.VMPluginFactory Maven / Gradle / Ivy
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Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2007 the original author or authors.
*
* 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.codehaus.groovy.vmplugin;
import org.codehaus.groovy.vmplugin.v4.Java4;
/**
* factory class to get functionlity based on the VM version.
* The usage of this class is not for public use, only for the
* runtime.
* @author Jochen Theodorou
*/
public class VMPluginFactory {
private static final String JDK5_CLASSNAME_CHECK = "java.lang.annotation.Annotation";
private static final String JDK5_PLUGIN_NAME = "org.codehaus.groovy.vmplugin.v5.Java5";
private static VMPlugin plugin;
static {
try {
ClassLoader.getSystemClassLoader().loadClass(JDK5_CLASSNAME_CHECK);
plugin = (VMPlugin) VMPluginFactory.class.getClassLoader()
.loadClass(JDK5_PLUGIN_NAME).newInstance();
} catch(Exception ex) {
plugin = new Java4();
}
}
public static VMPlugin getPlugin() {
return plugin;
}
}