예제 #1
0
    /**
     * Executes a query.
     *
     * @param cmd HiveQL query to execute
     */
    public void execute(String cmd) throws HiveServerException, TException {
      HiveServerHandler.LOG.info("Running the query: " + cmd);
      SessionState ss = SessionState.get();

      String cmd_trimmed = cmd.trim();
      String[] tokens = cmd_trimmed.split("\\s");
      String cmd_1 = cmd_trimmed.substring(tokens[0].length()).trim();

      int ret = 0;
      try {
        CommandProcessor proc = CommandProcessorFactory.get(tokens[0]);
        if (proc != null) {
          if (proc instanceof Driver) {
            isHiveQuery = true;
            ret = driver.run(cmd);
          } else {
            isHiveQuery = false;
            ret = proc.run(cmd_1);
          }
        }
      } catch (Exception e) {
        throw new HiveServerException("Error running query: " + e.toString());
      }

      if (ret != 0) {
        throw new HiveServerException("Query returned non-zero code: " + ret);
      }
    }
예제 #2
0
    private void checkedCompile() throws BeeswaxException {
      // Run through configuration commands
      for (String cmd : query.configuration) {
        // This is pretty whacky; SET and ADD get treated differently
        // than CREATE TEMPORARY FUNCTION...  The trimming logic
        // here is borrowed from CliDriver; oy.
        String cmd_trimmed = cmd.trim();
        String[] tokens = cmd_trimmed.split("\\s+");
        String cmd1 = cmd_trimmed.substring(tokens[0].length()).trim();
        CommandProcessor p = CommandProcessorFactory.get(tokens[0]);
        int res;
        if (p instanceof Driver) {
          res = p.run(cmd).getResponseCode();
        } else {
          res = p.run(cmd1).getResponseCode();
        }
        if (res != 0) {
          throwException(new RuntimeException(getErrorStreamAsString()));
        }
      }

      // Note that driver.compile() talks to HDFS, so it's
      // not as quick as one might think.
      int compileRes = driver.compile(query.query);
      if (compileRes != 0) {
        throwException(
            new BeeswaxException(getErrorStreamAsString(), this.logContext.getName(), this.handle));
      }
    }
예제 #3
0
  public int processCmd(String cmd) throws TException, HiveException {
    SessionState ss = SessionState.get();
    ss.setiscli(true);

    String cmd_trimmed = cmd.trim();
    String[] tokens = cmd_trimmed.split("\\s+");
    String cmd_1 = cmd_trimmed.substring(tokens[0].length()).trim();
    int ret = 0;

    if (tokens[0].equalsIgnoreCase("delete")) {
      Vector<String> nexttoken = new Vector<String>();
      nexttoken.add("jar");
      nexttoken.add("file");
      nexttoken.add("from");
      if (tokens.length < 2 || !nexttoken.contains(tokens[1].toLowerCase())) {
        String errorMessage =
            "\nif delete resource:\n"
                + "Usage: delete [FILE|JAR] <value> [<value>]*\n"
                + "if delete table rows:\n"
                + "Usage: delete from tableName [where searchCondition]";
        console.printError(errorMessage);
        ret = 1;

        return ret;
      }
    }

    if (tokens[0].equalsIgnoreCase("dfs") || tokens[0].equalsIgnoreCase("zktest")) {
      String errorMessage = "\ntdw hive do not support " + tokens[0].toLowerCase() + " operation\n";
      throw new HiveException(errorMessage);
    }

    if (cmd_trimmed.toLowerCase().equals("quit") || cmd_trimmed.toLowerCase().equals("exit")) {

      System.exit(0);

    } else if (cmd_trimmed.startsWith("!")) {

      String shell_cmd = cmd_trimmed.substring(1);

      try {
        Process executor = Runtime.getRuntime().exec(shell_cmd);
        StreamPrinter outPrinter = new StreamPrinter(executor.getInputStream(), null, ss.out);
        StreamPrinter errPrinter = new StreamPrinter(executor.getErrorStream(), null, ss.err);

        outPrinter.start();
        errPrinter.start();

        ret = executor.waitFor();
        if (ret != 0) {
          console.printError("Command failed with exit code = " + ret);
        }
      } catch (Exception e) {
        console.printError(
            "Exception raised from Shell command " + e.getLocalizedMessage(),
            org.apache.hadoop.util.StringUtils.stringifyException(e));
        ret = 1;
      }

    } else if (tokens[0].toLowerCase().equals("list")) {

      SessionState.ResourceType t;
      if (tokens.length < 2 || (t = SessionState.find_resource_type(tokens[1])) == null) {
        console.printError(
            "Usage: list ["
                + StringUtils.join(SessionState.ResourceType.values(), "|")
                + "] [<value> [<value>]*]");
        ret = 1;
      } else {
        List<String> filter = null;
        if (tokens.length >= 3) {
          System.arraycopy(tokens, 2, tokens, 0, tokens.length - 2);
          filter = Arrays.asList(tokens);
        }
        Set<String> s = ss.list_resource(t, filter);
        if (s != null && !s.isEmpty()) ss.out.println(StringUtils.join(s, "\n"));
      }

    } else {
      CommandProcessor proc = CommandProcessorFactory.get(tokens);
      if (proc != null) {
        if (proc instanceof Driver) {
          Driver qp = (Driver) proc;
          PrintStream out = ss.out;
          long start = System.currentTimeMillis();

          try {
            ret = qp.run(cmd);
          } catch (Exception e1) {
            e1.printStackTrace();
          }
          if (ret != 0) {
            qp.close();
            return ret;
          }

          Vector<String> res = new Vector<String>();
          try {
            while (qp.getResults(res)) {
              for (String r : res) {
                out.println(r);
              }
              res.clear();
              if (out.checkError()) {
                break;
              }
            }
          } catch (IOException e) {
            console.printError(
                "Failed with exception " + e.getClass().getName() + ":" + e.getMessage(),
                "\n" + org.apache.hadoop.util.StringUtils.stringifyException(e));
            ret = 1;
          }

          int cret = qp.close();
          if (ret == 0) {
            ret = cret;
          }

          long end = System.currentTimeMillis();
          if (end > start) {
            double timeTaken = (double) (end - start) / 1000.0;
            console.printInfo("Time taken: " + timeTaken + " seconds", null);
          }

        } else {
          try {
            ret = proc.run(cmd_1);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
      }
    }

    return ret;
  }