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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.skynet.blam;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.eclipse.osee.framework.jdk.core.type.OseeArgumentException;
/**
* @author Ryan D. Brooks
*/
public abstract class DynamicBlamOperation {
private Method mainMethod;
private BlamParameter[] parameters;
public void init() throws IllegalArgumentException, NoSuchMethodException, OseeArgumentException {
mainMethod = findMainMethod(getMainMethodName());
String[] parameterNames = getParameterNames();
Class<?>[] parameterTypes = mainMethod.getParameterTypes();
if (parameterNames.length != parameterTypes.length) {
throw new OseeArgumentException("The method [%s] has %d parameters, but %d parameter names.",
getMainMethodName(), parameterTypes.length, parameterNames.length);
}
parameters = new BlamParameter[parameterTypes.length];
for (int i = 0; i < parameterTypes.length; i++) {
parameters[i] = new BlamParameter(parameterNames[i], parameterTypes[i], null);
}
}
public void executeOperation(Object[] actualParameters) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
mainMethod.invoke(this, actualParameters);
}
private Method findMainMethod(String mainMethodName) throws IllegalArgumentException, NoSuchMethodException {
Class<? extends DynamicBlamOperation> classRep = getClass();
Method[] methods = classRep.getDeclaredMethods(); // get only the methods declared directly in the given class
for (Method method : methods) {
if (method.getName().equals(mainMethodName)) {
return method;
}
}
throw new NoSuchMethodException(mainMethodName);
}
/**
* should return user oriented names for input values in the same order that they should be passed to the operation's
* configured execution method
*
* @return array of parameter names
*/
public abstract String[] getParameterNames();
public abstract String getMainMethodName();
public BlamParameter[] getParameters() {
return parameters;
}
}
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