1 /* 2 * Copyright 2010 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.android.testing.mocking; 17 18 import java.io.ByteArrayOutputStream; 19 import java.io.File; 20 import java.io.FileNotFoundException; 21 import java.io.FileOutputStream; 22 import java.io.IOException; 23 import java.io.OutputStream; 24 import java.io.PrintStream; 25 import java.net.URL; 26 import java.net.URLClassLoader; 27 import java.text.SimpleDateFormat; 28 import java.util.Date; 29 30 import javax.annotation.processing.ProcessingEnvironment; 31 import javax.tools.Diagnostic.Kind; 32 33 /** 34 * @author swoodward (at) google.com (Stephen Woodward) 35 * 36 */ 37 class ProcessorLogger { 38 private final OutputStream logFile; 39 private final ProcessingEnvironment processingEnv; 40 41 ProcessorLogger(OutputStream logFile, ProcessingEnvironment processingEnv) { 42 this.logFile = logFile; 43 this.processingEnv = processingEnv; 44 } 45 46 ProcessorLogger(String logFileName, ProcessingEnvironment processingEnv) { 47 this.logFile = openLogFile(logFileName); 48 this.processingEnv = processingEnv; 49 } 50 51 void reportClasspathError(String clazz, Throwable e) { 52 printMessage(Kind.ERROR, "Could not find " + clazz); 53 printMessage(Kind.ERROR, e); 54 printMessage(Kind.NOTE, "Known Classpath: "); 55 URL[] allUrls = ((URLClassLoader) this.getClass().getClassLoader()).getURLs(); 56 for (URL url : allUrls) { 57 printMessage(Kind.NOTE, url.toString()); 58 } 59 } 60 61 void printMessage(Kind kind, String message) { 62 processingEnv.getMessager().printMessage(kind, message); 63 if (logFile != null) { 64 try { 65 logFile.write((SimpleDateFormat.getDateTimeInstance().format(new Date()) + " - " 66 + kind.toString() + " : " + message + "\n").getBytes()); 67 } catch (IOException e) { 68 // That's unfortunate, but not much to do about it. 69 processingEnv.getMessager().printMessage(Kind.WARNING, 70 "IOException logging to file" + e.toString()); 71 } 72 } 73 } 74 75 void printMessage(Kind kind, Throwable e) { 76 ByteArrayOutputStream stackTraceByteStream = new ByteArrayOutputStream(); 77 PrintStream stackTraceStream = new PrintStream(stackTraceByteStream); 78 e.printStackTrace(stackTraceStream); 79 printMessage(kind, stackTraceByteStream.toString()); 80 } 81 82 FileOutputStream openLogFile(String logFileName) { 83 try { 84 if (logFileName != null) { 85 File log = new File(logFileName); 86 if (!log.exists() && log.getParentFile() != null) { 87 log.getParentFile().mkdirs(); 88 } 89 return new FileOutputStream(log, true); 90 } 91 } catch (FileNotFoundException e) { 92 printMessage(Kind.WARNING, e); 93 } 94 return null; 95 } 96 97 void close() { 98 if (logFile != null) { 99 try { 100 logFile.close(); 101 } catch (IOException e) { 102 // That's ok 103 } 104 } 105 } 106 } 107
