1 /*
   2  * Copyright (c) 2013, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.util.Arrays;
  25 import java.util.List;
  26 import java.util.Collections;
  27 import java.util.ArrayList;
  28 
  29 import java.io.File;
  30 import java.io.Writer;
  31 import java.io.FileWriter;
  32 import java.io.IOException;
  33 import java.io.BufferedReader;
  34 
  35 import java.nio.file.Files;
  36 import java.nio.file.Paths;
  37 import java.nio.file.StandardCopyOption;
  38 import java.nio.charset.Charset;
  39 
  40 import jdk.test.lib.Platform;
  41 import jdk.test.lib.JDKToolFinder;
  42 import jdk.test.lib.process.OutputAnalyzer;
  43 import jdk.test.lib.process.ProcessTools;
  44 
  45 public abstract class CtwTest {
  46     private static final String LOG_FILE = "ctw.log";
  47     private static final String[] CTW_COMMAND = {
  48         "-Xbootclasspath/a:.",
  49         "-XX:+UnlockDiagnosticVMOptions",
  50         "-XX:+WhiteBoxAPI",
  51         "-Dsun.hotspot.tools.ctw.logfile=" + LOG_FILE,
  52         "--add-exports", "java.base/jdk.internal.jimage=ALL-UNNAMED",
  53         "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED",
  54         "--add-exports", "java.base/jdk.internal.reflect=ALL-UNNAMED",
  55         sun.hotspot.tools.ctw.CompileTheWorld.class.getName(),
  56     };
  57     protected final String[] shouldContain;
  58     protected CtwTest(String[] shouldContain) {
  59         this.shouldContain = shouldContain;
  60     }
  61 
  62     public void run(String[] args) throws Exception {
  63         if (args.length == 0) {
  64             throw new Error("args is empty");
  65         }
  66         switch (args[0]) {
  67             case "prepare":
  68                 prepare();
  69                 break;
  70             case "check":
  71                 check();
  72                 break;
  73             case "compile":
  74                 compile(args);
  75                 break;
  76             default:
  77                 throw new Error("unregonized action -- " + args[0]);
  78         }
  79     }
  80 
  81     protected void prepare() throws Exception { }
  82 
  83     protected void check() throws Exception  {
  84         try (BufferedReader r = Files.newBufferedReader(Paths.get(LOG_FILE),
  85                 Charset.defaultCharset())) {
  86             OutputAnalyzer output = readOutput(r);
  87             for (String test : shouldContain) {
  88                 output.shouldContain(test);
  89             }
  90         }
  91     }
  92 
  93     protected void compile(String[] args) throws Exception {
  94         // concat CTW_COMMAND and args w/o 0th element
  95         String[] cmd = Arrays.copyOf(CTW_COMMAND, CTW_COMMAND.length + args.length - 1);
  96         System.arraycopy(args, 1, cmd, CTW_COMMAND.length, args.length - 1);
  97         if (Platform.isWindows()) {
  98             // '*' has to be escaped on windows
  99             for (int i = 0; i < cmd.length; ++i) {
 100                 cmd[i] = cmd[i].replace("*", "\"*\"");
 101             }
 102         }
 103         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, cmd);
 104         OutputAnalyzer output = new OutputAnalyzer(pb.start());
 105         dump(output, "compile");
 106         output.shouldHaveExitValue(0);
 107     }
 108 
 109     private static OutputAnalyzer readOutput(BufferedReader reader)
 110             throws IOException {
 111         StringBuilder builder = new StringBuilder();
 112         String eol = String.format("%n");
 113         String line;
 114 
 115         while ((line = reader.readLine()) != null) {
 116             builder.append(line);
 117             builder.append(eol);
 118         }
 119         return new OutputAnalyzer(builder.toString(), "");
 120     }
 121 
 122     protected void dump(OutputAnalyzer output, String name) {
 123         try (Writer w = new FileWriter(name + ".out")) {
 124             String s = output.getStdout();
 125             w.write(s, s.length(), 0);
 126         } catch (IOException io) {
 127             io.printStackTrace();
 128         }
 129         try (Writer w = new FileWriter(name + ".err")) {
 130             String s = output.getStderr();
 131             w.write(s, s.length(), 0);
 132         } catch (IOException io) {
 133             io.printStackTrace();
 134         }
 135     }
 136 
 137     protected ProcessBuilder createJarProcessBuilder(String... command)
 138             throws Exception {
 139         String javapath = JDKToolFinder.getJDKTool("jar");
 140 
 141         ArrayList<String> args = new ArrayList<>();
 142         args.add(javapath);
 143         Collections.addAll(args, command);
 144 
 145         return new ProcessBuilder(args.toArray(new String[args.size()]));
 146     }
 147 }