/*
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.exoplatform.management.invocation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Map;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
* @version $Revision$
*/
public abstract class SimpleMethodInvoker implements MethodInvoker {
/** The method we invoke. */
private final Method method;
public SimpleMethodInvoker(Method method) {
if (method == null) {
throw new NullPointerException();
}
//
this.method = method;
}
public Object invoke(Object o, Map<String, List<String>> argMap) throws IllegalAccessException, InvocationTargetException {
Class[] paramTypes = method.getParameterTypes();
Object[] args = new Object[paramTypes.length];
for (int i = 0; i < paramTypes.length; i++) {
String argName = getArgumentName(i);
List<String> argValues = argMap.get(argName);
Class paramType = paramTypes[i];
Object arg;
if (paramType.isPrimitive()) {
throw new UnsupportedOperationException("Todo " + paramType);
} else if (paramType.isArray()) {
throw new UnsupportedOperationException("Todo " + paramType);
} else if (paramType == String.class) {
arg = (argValues != null && argValues.size() > 0) ? argValues.get(0) : null;
} else {
throw new UnsupportedOperationException("Todo " + paramType);
}
args[i] = arg;
}
//
return method.invoke(o, args);
}
protected abstract String getArgumentName(int index);
}