Examples of org.apache.hadoop.hive.ql.exec.ExplainTask.initialize()

Class org.apache.hadoop.hive.ql.exec.ExplainTask

Examples of org.apache.hadoop.hive.ql.exec.ExplainTask.initialize()

org.apache.hadoop.hive.ql.exec.ExplainTask.initialize()

            }


            switch(hookContext.getHookType()) {
            case PRE_EXEC_HOOK:
              ExplainTask explain = new ExplainTask();
              explain.initialize(conf, plan, null);
              String query = plan.getQueryStr();
              List<Task<?>> rootTasks = plan.getRootTasks();
              JSONObject explainPlan = explain.getJSONPlan(null, null, rootTasks,
                   plan.getFetchTask(), true, false, false);
              fireAndForget(conf, createPreHookEvent(queryId, query,

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   */
  private String getExplainOutput(BaseSemanticAnalyzer sem, QueryPlan plan,
      String astStringTree) throws IOException {
    String ret = null;
    ExplainTask task = new ExplainTask();
    task.initialize(conf, plan, null);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PrintStream ps = new PrintStream(baos);
    try {
      task.getJSONPlan(ps, astStringTree, sem.getRootTasks(), sem.getFetchTask(),
          false, true, true);

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    fs.deleteOnExit(tmp);
    ExplainWork work = new ExplainWork(tmp, sem.getParseContext(), sem.getRootTasks(),
        sem.getFetchTask(), astStringTree, sem, true, false, false, false, false);
    ExplainTask task = new ExplainTask();
    task.setWork(work);
    task.initialize(conf, plan, null);
    task.execute(null);
    FSDataInputStream in = fs.open(tmp);
    StringBuilder builder = new StringBuilder();
    final int bufSz = 4096;
    byte[] buf = new byte[bufSz];

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