J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @summary it is new version of old test which was |
| 26 | * /src/share/test/serialization/subtest.java |
| 27 | * This test verifies of invocation |
| 28 | * annotateClass/replaceObject methods |
| 29 | */ |
| 30 | |
| 31 | import java.io.*; |
| 32 | |
| 33 | public class AnnotateClass { |
| 34 | public static void main (String argv[]) { |
| 35 | System.err.println("\nRegression test for verification " + |
| 36 | "of invocation annotateClass/replaceObject " + |
| 37 | "methods \n"); |
| 38 | try { |
| 39 | FileOutputStream ostream = new FileOutputStream("subtest1.tmp"); |
| 40 | TestOutputStream p = new TestOutputStream(ostream); |
| 41 | |
| 42 | p.writeObject(System.out); |
| 43 | p.writeObject(System.err); |
| 44 | p.writeObject(new PrintStream(ostream)); |
| 45 | p.flush(); |
| 46 | ostream.close(); |
| 47 | |
| 48 | FileInputStream istream = new FileInputStream("subtest1.tmp"); |
| 49 | TestInputStream q = new TestInputStream(istream); |
| 50 | |
| 51 | PrintStream out = (PrintStream)q.readObject(); |
| 52 | PrintStream err = (PrintStream)q.readObject(); |
| 53 | Object other = q.readObject(); |
| 54 | if (out != System.out) { |
| 55 | System.err.println( |
| 56 | "\nTEST FAILED: System.out not read correctly"); |
| 57 | throw new Error(); |
| 58 | } |
| 59 | if (err != System.err) { |
| 60 | System.err.println( |
| 61 | "\nTEST FAILED: System.err not read correctly"); |
| 62 | throw new Error(); |
| 63 | } |
| 64 | if (other != null) { |
| 65 | System.err.println( |
| 66 | "\nTEST FAILED: Non-system PrintStream should have " + |
| 67 | "been written/read as null"); |
| 68 | throw new Error(); |
| 69 | } |
| 70 | System.err.println("\nTEST PASSED"); |
| 71 | } catch (Exception e) { |
| 72 | System.err.print("TEST FAILED: "); |
| 73 | e.printStackTrace(); |
| 74 | throw new Error(); |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | |
| 80 | |
| 81 | /** ObjectOutputStream is extended to test the annotateClass() |
| 82 | * and replaceObject() subclassable methods. |
| 83 | * In annotateClass a magic string is written to the stream |
| 84 | * so that it can be verified in ObjectInputStream. |
| 85 | * replaceObject is used to subsititute a handle object for |
| 86 | * one of the standard PrintStreams (stdout or stderr). |
| 87 | */ |
| 88 | class TestOutputStream extends ObjectOutputStream { |
| 89 | /* Construct a new test stream */ |
| 90 | TestOutputStream(OutputStream out) throws IOException { |
| 91 | super(out); |
| 92 | enableReplaceObject(true); |
| 93 | } |
| 94 | |
| 95 | /* When any class is written, add a "magic" string |
| 96 | * that must be verified by the TestInputStream. |
| 97 | */ |
| 98 | protected void annotateClass(Class cl) throws IOException { |
| 99 | this.writeUTF("magic"); |
| 100 | } |
| 101 | |
| 102 | /* For each object of type PrintStream, substitute |
| 103 | * a StdStream handle object that encodes which |
| 104 | * of the standard print streams is being written. |
| 105 | * Other objects are written as themselves. |
| 106 | */ |
| 107 | protected Object replaceObject(Object obj) |
| 108 | throws IOException |
| 109 | { |
| 110 | /* For PrintStreams, like stdout and stderr, encode */ |
| 111 | if (obj instanceof PrintStream) { |
| 112 | return new StdStream((PrintStream)obj); |
| 113 | } |
| 114 | return obj; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /** Reverse the effects of TestOutputStream. |
| 119 | */ |
| 120 | class TestInputStream extends ObjectInputStream { |
| 121 | |
| 122 | TestInputStream(InputStream in) throws IOException { |
| 123 | super(in); |
| 124 | enableResolveObject(true); |
| 125 | } |
| 126 | |
| 127 | /** Verify that the magic string was written to the stream |
| 128 | * Also use the default classname->class resolution. |
| 129 | */ |
| 130 | protected Class<?> resolveClass(ObjectStreamClass classdesc) |
| 131 | throws ClassNotFoundException, IOException |
| 132 | { |
| 133 | try { |
| 134 | String s = readUTF(); |
| 135 | if (!(s.equals("magic"))) { |
| 136 | System.err.println( |
| 137 | "\nTEST FAILED: Bad magic number"); |
| 138 | throw new Error(); |
| 139 | } |
| 140 | } catch (IOException ee) { |
| 141 | System.err.println( |
| 142 | "\nTEST FAILED: I/O Exception"); |
| 143 | throw new Error(); |
| 144 | } |
| 145 | return super.resolveClass(classdesc); |
| 146 | } |
| 147 | |
| 148 | /** If the object in the stream is a StdStream, |
| 149 | * get the mapping of it to the local System printstream and |
| 150 | * return it. |
| 151 | * Other objects are returned as themselves. |
| 152 | */ |
| 153 | protected Object resolveObject(Object obj) { |
| 154 | if (obj instanceof StdStream) { |
| 155 | return ((StdStream)obj).getStream(); |
| 156 | } |
| 157 | return obj; |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | /* A holder class to map between standard print streams (stdout, stderr) |
| 162 | * and a small integer. |
| 163 | */ |
| 164 | class StdStream implements java.io.Serializable { |
| 165 | private int stream = 0; |
| 166 | |
| 167 | public StdStream(PrintStream s) { |
| 168 | if (s == System.out) { |
| 169 | stream = 1; |
| 170 | } else if (s == System.err) { |
| 171 | stream = 2; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | public PrintStream getStream() { |
| 176 | if (stream == 1) { |
| 177 | return System.out; |
| 178 | } else if (stream == 2) { |
| 179 | return System.err; |
| 180 | } else { |
| 181 | return null; |
| 182 | } |
| 183 | } |
| 184 | } |