/*
* Copyright 2000-2016 JetBrains s.r.o.
*
* 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 com.intellij.util;
import com.intellij.openapi.diagnostic.Logger;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class MethodInvocator {
private static final Logger LOG = Logger.getInstance("#com.intellij.util.MethodInvocator");
private Method myMethod;
public MethodInvocator(Class<?> aClass, String method, Class<?>... parameterTypes) {
try {
myMethod = aClass.getDeclaredMethod(method, parameterTypes);
if (!myMethod.isAccessible()) {
myMethod.setAccessible(true);
}
}
catch (NoSuchMethodException e) {
LOG.warn("Method not found: " + aClass.getName() + "." + method);
}
}
public boolean isAvailable() {
return myMethod != null;
}
public Object invoke(Object object, Object... arguments) {
if (!isAvailable()) {
throw new IllegalStateException("Method is not available");
}
try {
return myMethod.invoke(object, arguments);
}
catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
}