001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 package org.apache.fulcrum.yaafi.interceptor.util; 021 022 /** 023 * Creates a string representation of java.lang.reflect.Method 024 * 025 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a> 026 */ 027 public class DefaultToStringBuilderImpl implements InterceptorToStringBuilder 028 { 029 /** the target object */ 030 private Object target; 031 032 /** the output for a NULL value **/ 033 private static final String NULL_STRING = "<null>"; 034 035 /** 036 * Constructor 037 */ 038 public DefaultToStringBuilderImpl() 039 { 040 // nothing to do 041 } 042 043 /** 044 * Constructor 045 * 046 * @param target the object to print 047 */ 048 public DefaultToStringBuilderImpl(Object target) 049 { 050 this.target = target; 051 } 052 053 /** 054 * @see org.apache.fulcrum.yaafi.interceptor.util.InterceptorToStringBuilder#setTarget(java.lang.Object) 055 */ 056 public void setTarget(Object target) 057 { 058 this.target = target; 059 } 060 061 /** 062 * @see org.apache.fulcrum.yaafi.interceptor.util.InterceptorToStringBuilder#setMaxArgLength(int) 063 */ 064 public void setMaxArgLength(int maxArgLength) 065 { 066 // not supported 067 } 068 069 /** 070 * @see org.apache.fulcrum.yaafi.interceptor.util.InterceptorToStringBuilder#setMode(int) 071 */ 072 public void setMode(int mode) 073 { 074 // not supported 075 } 076 077 /** 078 * @see java.lang.Object#toString() 079 */ 080 public String toString() 081 { 082 String result = null; 083 084 try 085 { 086 if( this.target == null ) 087 { 088 result = NULL_STRING; 089 } 090 else 091 { 092 result = this.target.toString(); 093 } 094 } 095 catch (Throwable t) 096 { 097 t.printStackTrace(); 098 result = "<" + t + ">"; 099 } 100 101 return result; 102 } 103 }