001// Licensed under the Apache License, Version 2.0 (the "License"); 002// you may not use this file except in compliance with the License. 003// You may obtain a copy of the License at 004// 005// http://www.apache.org/licenses/LICENSE-2.0 006// 007// Unless required by applicable law or agreed to in writing, software 008// distributed under the License is distributed on an "AS IS" BASIS, 009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 010// See the License for the specific language governing permissions and 011// limitations under the License. 012 013package org.apache.tapestry5.internal.services.exceptions; 014 015import org.apache.tapestry5.SymbolConstants; 016import org.apache.tapestry5.ioc.annotations.Inject; 017import org.apache.tapestry5.ioc.annotations.Symbol; 018import org.apache.tapestry5.ioc.internal.util.InternalUtils; 019import org.apache.tapestry5.ioc.util.ExceptionUtils; 020import org.apache.tapestry5.services.ExceptionReportWriter; 021import org.apache.tapestry5.services.ExceptionReporter; 022import org.slf4j.Logger; 023 024import java.io.File; 025import java.io.IOException; 026import java.io.PrintWriter; 027import java.util.Date; 028import java.util.concurrent.atomic.AtomicInteger; 029 030@SuppressWarnings("ResultOfMethodCallIgnored") 031public class ExceptionReporterImpl implements ExceptionReporter 032{ 033 034 @Inject 035 @Symbol(SymbolConstants.EXCEPTION_REPORTS_DIR) 036 private File logDir; 037 038 @Inject 039 @Symbol(SymbolConstants.RESTRICTIVE_ENVIRONMENT) 040 private boolean restrictive; 041 042 private final AtomicInteger uid = new AtomicInteger(); 043 044 @Inject 045 private Logger logger; 046 047 048 @Inject 049 private ExceptionReportWriter exceptionReportWriter; 050 051 @Override 052 public void reportException(Throwable exception) 053 { 054 Date date = new Date(); 055 String fileName = String.format( 056 "exception-%tY%<tm%<td-%<tH%<tM%<tS-%<tL.%d.txt", date, 057 uid.getAndIncrement()); 058 059 File folder; 060 061 try 062 { 063 if (restrictive) 064 { 065 // Good luck with this; all exceptions written to a single folder. 066 folder = logDir; 067 } else 068 { 069 String folderName = String.format("%tY-%<tm-%<td/%<tH/%<tM", date); 070 folder = new File(logDir, folderName); 071 072 folder.mkdirs(); 073 } 074 075 File log = new File(folder, fileName); 076 077 writeExceptionToFile(exception, log); 078 079 logger.warn(String.format("Wrote exception report to %s", toURI(log))); 080 } catch (Exception ex) 081 { 082 logger.error(String.format("Unable to write exception report %s: %s", 083 fileName, ExceptionUtils.toMessage(ex))); 084 085 logger.error("Original exception:", exception); 086 } 087 } 088 089 private String toURI(File file) 090 { 091 try 092 { 093 return file.toURI().toString(); 094 } catch (Exception e) 095 { 096 return file.toString(); 097 } 098 } 099 100 private void writeExceptionToFile(Throwable exception, File log) throws IOException 101 { 102 log.createNewFile(); 103 104 PrintWriter writer = null; 105 106 try 107 { 108 writer = new PrintWriter(log); 109 exceptionReportWriter.writeReport(writer, exception); 110 } finally 111 { 112 InternalUtils.close(writer); 113 } 114 } 115 116 117}