001// Copyright 2008, 2011 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry5.ioc.internal.services; 016 017import org.apache.tapestry5.ioc.services.ExceptionTracker; 018import org.apache.tapestry5.plastic.MethodAdvice; 019import org.apache.tapestry5.plastic.MethodInvocation; 020import org.slf4j.Logger; 021 022public class LoggingAdvice implements MethodAdvice 023{ 024 private final MethodLogger methodLogger; 025 026 public LoggingAdvice(Logger logger, ExceptionTracker exceptionTracker) 027 { 028 methodLogger = new MethodLogger(logger, exceptionTracker); 029 } 030 031 public void advise(MethodInvocation invocation) 032 { 033 boolean debug = methodLogger.isDebugEnabled(); 034 035 if (!debug) 036 { 037 invocation.proceed(); 038 return; 039 } 040 041 methodLogger.entry(invocation); 042 043 try 044 { 045 invocation.proceed(); 046 } 047 catch (RuntimeException ex) 048 { 049 methodLogger.fail(invocation, ex); 050 051 throw ex; 052 } 053 054 if (invocation.didThrowCheckedException()) 055 { 056 Exception thrown = invocation.getCheckedException(Exception.class); 057 058 methodLogger.fail(invocation, thrown); 059 060 return; 061 } 062 063 methodLogger.exit(invocation); 064 } 065}