/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.jboss.as.ejb3;
import java.lang.reflect.Method;
import org.jboss.invocation.proxy.MethodIdentifier;
import org.jboss.jandex.MethodInfo;
import org.jboss.jandex.Type;
/**
* Identifier for a method on a EJB and is classloader agnostic.
* <p/>
* Unlike the {@link MethodIdentifier} this {@link EJBMethodIdentifier} takes into the account the declaring class of the
* method.
* <p/>
* User: Jaikiran Pai
*/
public class EJBMethodIdentifier {
private final MethodIdentifier methodIdentifier;
private final String methodDeclaringClass;
private final int cachedHashCode;
public EJBMethodIdentifier(final MethodIdentifier methodIdentifier, final String methodDeclaringClass) {
this.methodIdentifier = methodIdentifier;
this.methodDeclaringClass = methodDeclaringClass;
this.cachedHashCode = this.generateHashCode();
}
public static EJBMethodIdentifier fromMethodInfo(final MethodInfo methodInfo) {
final String returnType = methodInfo.returnType().name().toString();
final String[] argTypes = new String[methodInfo.args().length];
int i = 0;
for (Type argType : methodInfo.args()) {
argTypes[i++] = argType.name().toString();
}
final MethodIdentifier methodIdentifier = MethodIdentifier.getIdentifier(returnType, methodInfo.name(), argTypes);
return new EJBMethodIdentifier(methodIdentifier, methodInfo.declaringClass().name().toString());
}
public static EJBMethodIdentifier fromMethod(final Method method) {
final MethodIdentifier methodIdentifier = MethodIdentifier.getIdentifierForMethod(method);
return new EJBMethodIdentifier(methodIdentifier, method.getDeclaringClass().getName());
}
private int generateHashCode() {
int result = methodIdentifier.hashCode();
result = 31 * result + methodDeclaringClass.hashCode();
return result;
}
public MethodIdentifier getMethodIdentifier() {
return methodIdentifier;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
EJBMethodIdentifier that = (EJBMethodIdentifier) o;
if (!methodDeclaringClass.equals(that.methodDeclaringClass)) return false;
if (!methodIdentifier.equals(that.methodIdentifier)) return false;
return true;
}
@Override
public int hashCode() {
return this.cachedHashCode;
}
}