コード例 #1
0
  @Test
  public void canFollowLogfile() throws IOException {
    File tempFile =
        File.createTempFile("commons-io", "", new File(System.getProperty("java.io.tmpdir")));
    tempFile.deleteOnExit();
    System.out.println("Temp file = " + tempFile.getAbsolutePath());
    PrintStream log = new PrintStream(tempFile);
    LogfileFollower follower = new LogfileFollower(tempFile);
    List<String> lines;

    // Empty file:
    lines = follower.newLines();
    assertEquals(0, lines.size());

    // Write two lines:
    log.println("Line 1");
    log.println("Line 2");
    lines = follower.newLines();
    assertEquals(2, lines.size());
    assertEquals("Line 2", lines.get(1));

    // Write one more line:
    log.println("Line 3");
    lines = follower.newLines();
    assertEquals(1, lines.size());
    assertEquals("Line 3", lines.get(0));

    // Write one and a half line and finish later:
    log.println("Line 4");
    log.print("Line 5 begin");
    lines = follower.newLines();
    assertEquals(1, lines.size());

    // End last line and start a new one:
    log.println(" end");
    log.print("Line 6 begin");
    lines = follower.newLines();
    assertEquals(1, lines.size());
    assertEquals("Line 5 begin end", lines.get(0));

    // End last line:
    log.println(" end");
    lines = follower.newLines();
    assertEquals(1, lines.size());
    assertEquals("Line 6 begin end", lines.get(0));

    // A line only missing a newline:
    log.print("Line 7");
    lines = follower.newLines();
    assertEquals(0, lines.size());
    log.println();
    lines = follower.newLines();
    assertEquals(1, lines.size());
    assertEquals("Line 7", lines.get(0));

    // Delete:
    log.close();
    lines = follower.newLines();
    assertEquals(0, lines.size());
  }
 public static void writePackage(KnowledgePackage pkg, File dest) {
   dest.deleteOnExit();
   OutputStream out = null;
   try {
     out = new BufferedOutputStream(new FileOutputStream(dest));
     DroolsStreamUtils.streamOut(out, pkg);
   } catch (Exception e) {
     throw new RuntimeException(e);
   } finally {
     if (out != null) {
       try {
         out.close();
       } catch (IOException e) {
       }
     }
   }
 }