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PatternTesting Runtime (patterntesting-rt) is the runtime component for the PatternTesting framework. It provides the annotations and base classes for the PatternTesting testing framework (e.g. patterntesting-check, patterntesting-concurrent or patterntesting-exception) but can be also used standalone for classpath monitoring or profiling. It uses AOP and AspectJ to perform this feat.

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/**
 * $Id: UnsupportedOperationAspect.aj,v 1.1 2011/12/22 16:32:26 oboehm Exp $
 *
 * Copyright (c) 2008 by Oliver Boehm
 *
 * 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 orimplied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * (c)reated 19.10.2008 by oliver ([email protected])
 */
package patterntesting.runtime;

import java.text.MessageFormat;
import org.aspectj.lang.*;
import org.aspectj.lang.annotation.SuppressAjWarnings;

import patterntesting.runtime.annotation.*;

/**
 * Method with an @UnsupportedOperation will throw an
 * UnsupportedOperationException.
 *
 * @author oliver
 * @since 0.8
 */
public aspect UnsupportedOperationAspect {
	
	pointcut applicationCode() :
		execution(@UnsupportedOperation * *..*.*(..));
	
    /**
     * Throw an UnsupportedOpertionExcpeption for each method annotated with
     * @UnsupportedOperation.
     * 
     * @param a the annotation with the message for the exception
     */
    @SuppressAjWarnings({"adviceDidNotMatch"})
	after(UnsupportedOperation a) : applicationCode() && @annotation(a) {
		throwUnsupportedOperationException(a.value(), thisJoinPoint);
	}
	
	/**
	 * Helper method to throw an UnsupportedOperationException.
	 * 
	 * @param fmt the format string
	 * @param jp the joinpoint
	 */
	protected static void throwUnsupportedOperationException(String fmt,
            JoinPoint jp) {
	    String sig = jp.getSignature().getName() + "()";
        String msg = MessageFormat.format(fmt, sig);
        throw new UnsupportedOperationException(msg);
    }

}