Spring Framework example source code file (DebugInterceptor.java)

This example Spring Framework source code file (DebugInterceptor.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

debuginterceptor, debuginterceptor, object, object, simpletraceinterceptor, simpletraceinterceptor, string, string, throwable

The Spring Framework DebugInterceptor.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * 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 org.springframework.aop.interceptor;

import org.aopalliance.intercept.MethodInvocation;

/**
 * AOP Alliance <code>MethodInterceptor that can be introduced in a chain
 * to display verbose information about intercepted invocations to the logger.
 *
 * <p>Logs full invocation details on method entry and method exit,
 * including invocation arguments and invocation count. This is only
 * intended for debugging purposes; use <code>SimpleTraceInterceptor
 * or <code>CustomizableTraceInterceptor for pure tracing purposes.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
 * @see SimpleTraceInterceptor
 * @see CustomizableTraceInterceptor
 */
public class DebugInterceptor extends SimpleTraceInterceptor {

	private volatile long count;


	/**
	 * Create a new DebugInterceptor with a static logger.
	 */
	public DebugInterceptor() {
	}

	/**
	 * Create a new DebugInterceptor with dynamic or static logger,
	 * according to the given flag.
	 * @param useDynamicLogger whether to use a dynamic logger or a static logger
	 * @see #setUseDynamicLogger
	 */
	public DebugInterceptor(boolean useDynamicLogger) {
		setUseDynamicLogger(useDynamicLogger);
	}


	public Object invoke(MethodInvocation invocation) throws Throwable {
		synchronized (this) {
			this.count++;
		}
		return super.invoke(invocation);
	}

	protected String getInvocationDescription(MethodInvocation invocation) {
		return invocation + "; count=" + this.count;
	}


	/**
	 * Return the number of times this interceptor has been invoked.
	 */
	public long getCount() {
		return this.count;
	}

	/**
	 * Reset the invocation count to zero.
	 */
	public synchronized void resetCount() {
		this.count = 0;
	}

}