示例#1
0
  /**
   * Test concurrent reader and writer (GH-458).
   *
   * <p><b>Test case:</b>
   *
   * <ol>
   *   <li/>start a long running reader;
   *   <li/>try to start a writer: it should time out;
   *   <li/>stop the reader;
   *   <li/>start the writer again: it should succeed.
   * </ol>
   *
   * @throws Exception error during request execution
   */
  @Test
  @Ignore("There is no way to stop a query on the server!")
  public void testReaderWriter() throws Exception {
    final String readerQuery = "?query=(1%20to%20100000000000000)%5b.=1%5d";
    final String writerQuery = "/test.xml";
    final byte[] content = Token.token("<a/>");

    final Get readerAction = new Get(readerQuery);
    final Put writerAction = new Put(writerQuery, content);

    final ExecutorService exec = Executors.newFixedThreadPool(2);

    // start reader
    exec.submit(readerAction);
    Performance.sleep(TIMEOUT); // delay in order to be sure that the reader has started
    // start writer
    Future<HTTPResponse> writer = exec.submit(writerAction);

    try {
      final HTTPResponse result = writer.get(TIMEOUT, TimeUnit.MILLISECONDS);

      if (result.status.isSuccess()) fail("Database modified while a reader is running");
      throw new Exception(result.toString());
    } catch (final TimeoutException e) {
      // writer is blocked by the reader: stop it
      writerAction.stop = true;
    }

    // stop reader
    readerAction.stop = true;

    // start the writer again
    writer = exec.submit(writerAction);
    assertEquals(HTTPCode.CREATED, writer.get().status);
  }
示例#2
0
    @Override
    public void execute(final GUI gui) {
      final DialogExport dialog = new DialogExport(gui);
      if (!dialog.ok()) return;

      final IOFile root = new IOFile(dialog.path());

      // check if existing files will be overwritten
      if (root.exists()) {
        IO file = null;
        boolean overwrite = false;
        final Data d = gui.context.data();
        final IntList il = d.resources.docs();
        final int is = il.size();
        for (int i = 0; i < is; i++) {
          file = root.merge(Token.string(d.text(il.get(i), true)));
          if (file.exists()) {
            if (overwrite) {
              // more than one file will be overwritten; check remaining tests
              file = null;
              break;
            }
            overwrite = true;
          }
        }
        if (overwrite) {
          // show message for overwriting files or directories
          final String msg = file == null ? FILES_REPLACE_X : FILE_EXISTS_X;
          if (file == null) file = root;
          if (!BaseXDialog.confirm(gui, Util.info(msg, file))) return;
        }
      }
      DialogProgress.execute(gui, new Export(root.path()));
    }
示例#3
0
 @Override
 public void execute(final GUI gui) {
   final int pre = gui.context.marked.pres[0];
   final byte[] txt = ViewData.path(gui.context.data(), pre);
   // copy path to clipboard
   final Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
   clip.setContents(new StringSelection(Token.string(txt)), null);
 }
示例#4
0
  /**
   * Calculates the text offset and writes the text value.
   *
   * @param value value to be inlined
   * @param text text/attribute flag
   * @return inline value or text position
   * @throws IOException I/O exception
   */
  private long textOff(final byte[] value, final boolean text) throws IOException {
    // inline integer values...
    final long v = Token.toSimpleInt(value);
    if (v != Integer.MIN_VALUE) return v | IO.OFFNUM;

    // store text
    final DataOutput store = text ? xout : vout;
    final long off = store.size();
    final byte[] val = COMP.get().pack(value);
    store.writeToken(val);
    return val == value ? off : off | IO.OFFCOMP;
  }
示例#5
0
    @Override
    public void execute(final GUI gui) {
      final Nodes n = gui.context.marked;
      final DialogInsert insert = new DialogInsert(gui);
      if (!insert.ok()) return;

      final StringList sl = insert.result;
      final NodeType type = ANode.type(insert.kind);
      String item = Token.string(type.string()) + " { " + quote(sl.get(0)) + " }";

      if (type == NodeType.ATT || type == NodeType.PI) {
        item += " { " + quote(sl.get(1)) + " }";
      } else if (type == NodeType.ELM) {
        item += " { () }";
      }

      gui.context.copied = null;
      gui.execute(new XQuery("insert node " + item + " into " + openPre(n, 0)));
    }
示例#6
0
  /**
   * Test concurrent writers (GH-458).
   *
   * <p><b>Test case:</b>
   *
   * <ol>
   *   <li/>start several writers one after another;
   *   <li/>all writers should succeed.
   * </ol>
   *
   * @throws Exception error during request execution
   */
  @Test
  public void testMultipleWriters() throws Exception {
    final int count = 10;
    final String template =
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
            + "<command xmlns=\"http://basex.org/rest\"><text><![CDATA["
            + "ADD TO %1$d <node id=\"%1$d\"/>"
            + "]]></text></command>";

    @SuppressWarnings("unchecked")
    final Future<HTTPResponse>[] tasks = new Future[count];
    final ExecutorService exec = Executors.newFixedThreadPool(count);

    // start all writers (not at the same time, but still in parallel)
    for (int i = 0; i < count; i++) {
      final String command = String.format(template, i);
      tasks[i] = exec.submit(new Post("", Token.token(command)));
    }

    // check if all have finished successfully
    for (final Future<HTTPResponse> task : tasks) {
      assertEquals(HTTPCode.OK, task.get(TIMEOUT, TimeUnit.MILLISECONDS).status);
    }
  }