| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.log4j.util; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.util.zip.GZIPInputStream; |
| |
| |
| public class Compare { |
| static final int B1_NULL = -1; |
| static final int B2_NULL = -2; |
| |
| private static final InputStream open( |
| final Class testClass, |
| final String fileName) throws IOException { |
| String resourceName = fileName; |
| if (fileName.startsWith("witness/")) { |
| resourceName = fileName.substring(fileName.lastIndexOf('/') + 1); |
| } |
| InputStream is = testClass.getResourceAsStream(resourceName); |
| if (is == null) { |
| File file = new File(fileName); |
| if (file.exists()) { |
| is = new FileInputStream(file); |
| } else { |
| throw new FileNotFoundException("Resource " |
| + resourceName + " not found"); |
| } |
| } |
| return is; |
| } |
| |
| public static boolean compare(Class testClass, |
| final String file1, |
| final String file2) |
| throws IOException { |
| BufferedReader in1 = new BufferedReader(new FileReader(file1)); |
| BufferedReader in2 = new BufferedReader(new InputStreamReader( |
| open(testClass, file2))); |
| try { |
| return compare(testClass, file1, file2, in1, in2); |
| } finally { |
| in1.close(); |
| in2.close(); |
| } |
| } |
| |
| public static boolean compare( |
| Class testClass, String file1, String file2, BufferedReader in1, BufferedReader in2) throws IOException { |
| |
| String s1; |
| int lineCounter = 0; |
| |
| while ((s1 = in1.readLine()) != null) { |
| lineCounter++; |
| |
| String s2 = in2.readLine(); |
| |
| if (!s1.equals(s2)) { |
| System.out.println( |
| "Files [" + file1 + "] and [" + file2 + "] differ on line " |
| + lineCounter); |
| System.out.println("One reads: [" + s1 + "]."); |
| System.out.println("Other reads:[" + s2 + "]."); |
| outputFile(testClass, file1); |
| outputFile(testClass, file2); |
| |
| return false; |
| } |
| } |
| |
| // the second file is longer |
| if (in2.read() != -1) { |
| System.out.println( |
| "File [" + file2 + "] longer than file [" + file1 + "]."); |
| outputFile(testClass, file1); |
| outputFile(testClass, file2); |
| |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** |
| * |
| * Prints file on the console. |
| * |
| */ |
| private static void outputFile(Class testClass, String file) |
| throws IOException { |
| InputStream is = open(testClass, file); |
| BufferedReader in1 = new BufferedReader(new InputStreamReader(is)); |
| |
| String s1; |
| int lineCounter = 0; |
| System.out.println("--------------------------------"); |
| System.out.println("Contents of " + file + ":"); |
| |
| while ((s1 = in1.readLine()) != null) { |
| lineCounter++; |
| System.out.print(lineCounter); |
| |
| if (lineCounter < 10) { |
| System.out.print(" : "); |
| } else if (lineCounter < 100) { |
| System.out.print(" : "); |
| } else if (lineCounter < 1000) { |
| System.out.print(" : "); |
| } else { |
| System.out.print(": "); |
| } |
| |
| System.out.println(s1); |
| } |
| in1.close(); |
| } |
| |
| |
| public static boolean gzCompare(final Class testClass, |
| final String actual, |
| final String expected) |
| throws FileNotFoundException, IOException { |
| String resourceName = expected; |
| int lastSlash = expected.lastIndexOf("/"); |
| if (lastSlash >= 0) { |
| resourceName = expected.substring(lastSlash + 1); |
| } |
| InputStream resourceStream = testClass.getResourceAsStream(resourceName); |
| if (resourceStream == null) { |
| throw new FileNotFoundException("Could not locate resource " + resourceName); |
| } |
| |
| BufferedReader in1 = new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream(actual)))); |
| BufferedReader in2 = new BufferedReader(new InputStreamReader(new GZIPInputStream(resourceStream))); |
| try { |
| return gzCompare(testClass, actual, expected, in1, in2); |
| } finally { |
| in1.close(); |
| in2.close(); |
| } |
| } |
| |
| public static boolean gzCompare(Class testClass, String file1, String file2, BufferedReader in1, BufferedReader in2) throws IOException { |
| |
| String s1; |
| int lineCounter = 0; |
| |
| while ((s1 = in1.readLine()) != null) { |
| lineCounter++; |
| |
| String s2 = in2.readLine(); |
| |
| if (!s1.equals(s2)) { |
| System.out.println( |
| "Files [" + file1 + "] and [" + file2 + "] differ on line " |
| + lineCounter); |
| System.out.println("One reads: [" + s1 + "]."); |
| System.out.println("Other reads:[" + s2 + "]."); |
| outputFile(testClass, file1); |
| outputFile(testClass, file2); |
| |
| return false; |
| } |
| } |
| |
| // the second file is longer |
| if (in2.read() != -1) { |
| System.out.println( |
| "File [" + file2 + "] longer than file [" + file1 + "]."); |
| outputFile(testClass, file1); |
| outputFile(testClass, file2); |
| |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } |