org.codehaus.groovy.runtime.callsite.PojoMetaClassSite Maven / Gradle / Ivy
/*
* 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.codehaus.groovy.runtime.callsite;
import groovy.lang.GroovyRuntimeException;
import groovy.lang.MetaClass;
import org.codehaus.groovy.reflection.ClassInfo;
import org.codehaus.groovy.runtime.ScriptBytecodeAdapter;
/**
* POJO call site
* meta class - cached
* method - not cached
*
* @author Alex Tkachman
*/
public class PojoMetaClassSite extends MetaClassSite{
private final ClassInfo classInfo;
private final int version;
public PojoMetaClassSite(CallSite site, MetaClass metaClass) {
super(site, metaClass);
classInfo = ClassInfo.getClassInfo(metaClass.getTheClass());
version = classInfo.getVersion();
}
public Object call(Object receiver, Object[] args) throws Throwable {
if(checkCall(receiver)) {
try{
return metaClass.invokeMethod(receiver, name, args);
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
} else {
return CallSiteArray.defaultCall(this, receiver, args);
}
}
protected final boolean checkCall(Object receiver) {
return receiver!=null &&
receiver.getClass() == metaClass.getTheClass() &&
version == classInfo.getVersion(); // metaClass is still valid
}
}