jdk/test/com/sun/tools/attach/RunnerUtil.java
changeset 25182 1f6766bac82c
parent 25155 8b98011eac74
child 31454 4dba1183dc2f
equal deleted inserted replaced
25181:216e0899f503 25182:1f6766bac82c
    23 
    23 
    24 import java.io.IOException;
    24 import java.io.IOException;
    25 import java.io.File;
    25 import java.io.File;
    26 import java.nio.file.Files;
    26 import java.nio.file.Files;
    27 import java.util.Arrays;
    27 import java.util.Arrays;
    28 import java.util.regex.Pattern;
       
    29 import java.util.regex.Matcher;
       
    30 
    28 
    31 import jdk.testlibrary.OutputAnalyzer;
       
    32 import jdk.testlibrary.ProcessTools;
    29 import jdk.testlibrary.ProcessTools;
    33 import jdk.testlibrary.Utils;
    30 import jdk.testlibrary.Utils;
    34 import jdk.testlibrary.ProcessThread;
    31 import jdk.testlibrary.ProcessThread;
    35 
    32 
    36 /*
    33 /*
    47      * The Application must be started with flag "-Xshare:off" for the Retransform
    44      * The Application must be started with flag "-Xshare:off" for the Retransform
    48      * test in TestBasics to pass on all platforms.
    45      * test in TestBasics to pass on all platforms.
    49      *
    46      *
    50      * The Application will write its pid and shutdownPort in the given outFile.
    47      * The Application will write its pid and shutdownPort in the given outFile.
    51      */
    48      */
    52     public static ProcessThread startApplication(String outFile, String... additionalOpts) throws Throwable {
    49     public static ProcessThread startApplication(String... additionalOpts) throws Throwable {
    53         String classpath = System.getProperty("test.class.path", ".");
    50         String classpath = System.getProperty("test.class.path", ".");
    54         String[] myArgs = concat(additionalOpts, new String [] { "-Dattach.test=true", "-classpath", classpath, "Application", outFile });
    51         String[] myArgs = concat(additionalOpts, new String [] { "-Dattach.test=true", "-classpath", classpath, "Application" });
    55         String[] args = Utils.addTestJavaOpts(myArgs);
    52         String[] args = Utils.addTestJavaOpts(myArgs);
    56         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
    53         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
    57         ProcessThread pt = new ProcessThread("runApplication", pb);
    54         ProcessThread pt = new ProcessThread("runApplication", (line) -> line.equals(Application.READY_MSG), pb);
    58         pt.start();
    55         pt.start();
    59         return pt;
    56         return pt;
    60     }
    57     }
    61 
    58 
    62     public static String[] concat(String[] a, String[] b) {
    59     public static String[] concat(String[] a, String[] b) {
    79      * First tries to shutdown nicely by connecting to the shut down port.
    76      * First tries to shutdown nicely by connecting to the shut down port.
    80      * If that fails, the process will be killed hard with stopProcess().
    77      * If that fails, the process will be killed hard with stopProcess().
    81      *
    78      *
    82      * If the nice shutdown fails, then an Exception is thrown and the test should fail.
    79      * If the nice shutdown fails, then an Exception is thrown and the test should fail.
    83      *
    80      *
    84      * @param port The shut down port.
       
    85      * @param processThread The process to stop.
    81      * @param processThread The process to stop.
    86      */
    82      */
    87     public static void stopApplication(int port, ProcessThread processThread) throws Throwable {
    83     public static void stopApplication(ProcessThread processThread) throws Throwable {
    88         if (processThread == null) {
    84         if (processThread == null) {
    89             System.out.println("RunnerUtil.stopApplication ignored since proc is null");
    85             System.out.println("RunnerUtil.stopApplication ignored since proc is null");
    90             return;
    86             return;
    91         }
    87         }
    92         try {
    88         try {
    93             System.out.println("RunnerUtil.stopApplication waiting to for shutdown");
    89             System.out.println("RunnerUtil.stopApplication waiting for shutdown");
    94             OutputAnalyzer output = ProcessTools.executeTestJvm(
    90             processThread.sendMessage(Application.SHUTDOWN_MSG);
    95                     "-classpath",
       
    96                     System.getProperty("test.class.path", "."),
       
    97                     "Shutdown",
       
    98                     Integer.toString(port));
       
    99             // Verify that both the Shutdown command and the Application finished ok.
       
   100             output.shouldHaveExitValue(0);
       
   101             processThread.joinAndThrow();
    91             processThread.joinAndThrow();
   102             processThread.getOutput().shouldHaveExitValue(0);
    92             processThread.getOutput().shouldHaveExitValue(0);
   103         } catch (Throwable t) {
    93         } catch (Throwable t) {
   104             System.out.println("RunnerUtil.stopApplication failed. Will kill it hard: " + t);
    94             System.out.println("RunnerUtil.stopApplication failed. Will kill it hard: " + t);
   105             processThread.stopProcess();
    95             processThread.stopProcess();
   118             throw new RuntimeException("jar failed: args=" + Arrays.toString(args));
   108             throw new RuntimeException("jar failed: args=" + Arrays.toString(args));
   119         }
   109         }
   120     }
   110     }
   121 
   111 
   122     /**
   112     /**
   123      * Read process info for the running Application.
       
   124      * The Application writes its info to a file with this format:
       
   125      * shutdownPort=42994
       
   126      * pid=19597
       
   127      * done
       
   128      *
       
   129      * The final "done" is used to make sure the complete file has been written
       
   130      * before we try to read it.
       
   131      * This function will wait until the file is available.
       
   132      *
       
   133      * @param filename Path to file to read.
       
   134      * @return The ProcessInfo containing pid and shutdownPort.
       
   135      */
       
   136     public static ProcessInfo readProcessInfo(String filename) throws Throwable {
       
   137         System.out.println("Reading port and pid from file: " + filename);
       
   138         File file = new File(filename);
       
   139         String content = null;
       
   140 
       
   141         // Read file or wait for it to be created.
       
   142         long startTime = System.currentTimeMillis();
       
   143         long lastWarningTime = 0;
       
   144         while (true) {
       
   145             content = readFile(file);
       
   146             if (content != null && content.indexOf("done") >= 0) {
       
   147                 break;
       
   148             }
       
   149             Thread.sleep(100);
       
   150             long elapsedTime = (System.currentTimeMillis() - startTime) / 1000;
       
   151             if (elapsedTime > lastWarningTime) {
       
   152                 lastWarningTime = elapsedTime;
       
   153                 System.out.println("Waited " + elapsedTime + " seconds for file.");
       
   154             }
       
   155         }
       
   156 
       
   157         ProcessInfo info = new ProcessInfo();
       
   158         // search for a line with format: key=nnn
       
   159         Pattern pattern = Pattern.compile("(\\w*)=([0-9]+)\\r?\\n");
       
   160         Matcher matcher = pattern.matcher(content);
       
   161         while (matcher.find()) {
       
   162             String key = matcher.group(1);
       
   163             int value  = Integer.parseInt(matcher.group(2));
       
   164             if ("pid".equals(key)) {
       
   165                 info.pid = value;
       
   166             } else if ("shutdownPort".equals(key)) {
       
   167                 info.shutdownPort = value;
       
   168             }
       
   169         }
       
   170         System.out.println("processInfo.pid:" + info.pid);
       
   171         System.out.println("processInfo.shutdownPort:" + info.shutdownPort);
       
   172         return info;
       
   173     }
       
   174 
       
   175     /**
       
   176      * Read the content of a file.
   113      * Read the content of a file.
   177      * @param file The file to read.
   114      * @param file The file to read.
   178      * @return The file content or null if file does not exists.
   115      * @return The file content or null if file does not exists.
   179      */
   116      */
   180     public static String readFile(File file) throws IOException {
   117     public static String readFile(File file) throws IOException {
   188         } catch (IOException e) {
   125         } catch (IOException e) {
   189             e.printStackTrace();
   126             e.printStackTrace();
   190             throw e;
   127             throw e;
   191         }
   128         }
   192     }
   129     }
   193 
       
   194     /**
       
   195      * Helper class with info of the running Application.
       
   196      */
       
   197     public static class ProcessInfo {
       
   198         public int pid = -1;
       
   199         public int shutdownPort = -1;
       
   200     }
       
   201 
       
   202 }
   130 }