Package org.apache.hadoop.hive.ql.parse

Examples of org.apache.hadoop.hive.ql.parse.ASTNode

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  throws SemanticException {

    int numCh = ast.getChildCount();

    for (int num = 1; num < numCh; num++) {
      ASTNode child = (ASTNode) ast.getChild(num);

      switch (child.getToken().getType()) {

      case HiveParser.TOK_QUERY:
        throw new SemanticException("CTAS not supported.");
      }
    }
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      String[] tabColAlias = inputRR.reverseLookup(inpCInfo.getInternalName());
      if (tabColAlias != null) {
        colAlias = tabColAlias[1];
      }
      ASTNode inExpr = null;
      inExpr = PTFTranslator.getASTNode(inpCInfo, inputRR);
      if ( inExpr != null ) {
        rr.putExpression(inExpr, cInfo);
        colAlias = inExpr.toStringTree().toLowerCase();
      }
      else {
        colAlias = colAlias == null ? cInfo.getInternalName() : colAlias;
        rr.put(cInfo.getTabAlias(), colAlias, cInfo);
      }
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      ArrayList<ObjectInspector> selectListExprOIs = new ArrayList<ObjectInspector>();
      int i = 0;
      for(WindowExpressionSpec expr : selectSpec)
      {
        String selectColName = expr.getAlias();
        ASTNode selectColumnNode = expr.getExpression();
        ExprNodeDesc selectColumnExprNode =
            ResultExpressionParser.buildExprNode(selectColumnNode,
            selectListInputTypeCheckCtx);
        ExprNodeEvaluator selectColumnExprEval =
            ExprNodeEvaluatorFactory.get(selectColumnExprNode);
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  /**
   * Implements the process method for the NodeProcessor interface.
   */
  public Object process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx,
      Object... nodeOutputs) throws SemanticException {
    ASTNode pt = (ASTNode) nd;

    switch (pt.getToken().getType()) {

    case HiveParser.TOK_TAB:
      OutputTableList.add(BaseSemanticAnalyzer.getUnescapedName((ASTNode)pt.getChild(0)));
      break;

    case HiveParser.TOK_TABREF:
      ASTNode tabTree = (ASTNode) pt.getChild(0);
      String table_name = (tabTree.getChildCount() == 1) ?
          BaseSemanticAnalyzer.getUnescapedName((ASTNode)tabTree.getChild(0)) :
            BaseSemanticAnalyzer.getUnescapedName((ASTNode)tabTree.getChild(0)) + "." + tabTree.getChild(1);
      inputTableList.add(table_name);
      break;
    }
    return null;
  }
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    /*
     * Get the AST tree
     */
    ParseDriver pd = new ParseDriver();
    ASTNode tree = pd.parse(query);

    while ((tree.getToken() == null) && (tree.getChildCount() > 0)) {
      tree = (ASTNode) tree.getChild(0);
    }

    /*
     * initialize Event Processor and dispatcher.
     */
 
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      ctx.setCmd(command);
      ctx.setHDFSCleanup(true);

      perfLogger.PerfLogBegin(CLASS_NAME, PerfLogger.PARSE);
      ParseDriver pd = new ParseDriver();
      ASTNode tree = pd.parse(command, ctx);
      tree = ParseUtils.findRootNonNullToken(tree);
      perfLogger.PerfLogEnd(CLASS_NAME, PerfLogger.PARSE);

      perfLogger.PerfLogBegin(CLASS_NAME, PerfLogger.ANALYZE);
      BaseSemanticAnalyzer sem = SemanticAnalyzerFactory.get(conf, tree);
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    Context ctx;
    ParseContext subPCtx = null;
    try {
      ctx = new Context(conf);
      ParseDriver pd = new ParseDriver();
      ASTNode tree = pd.parse(command, ctx);
      tree = ParseUtils.findRootNonNullToken(tree);

      BaseSemanticAnalyzer sem = SemanticAnalyzerFactory.get(conf, tree);
      assert(sem instanceof SemanticAnalyzer);
      doSemanticAnalysis((SemanticAnalyzer) sem, tree, ctx);
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   * @throws SemanticException
   */
  private static void doSemanticAnalysis(SemanticAnalyzer sem,
      ASTNode ast, Context ctx) throws SemanticException {
    QB qb = new QB(null, null, false);
    ASTNode child = ast;
    ParseContext subPCtx = ((SemanticAnalyzer) sem).getParseContext();
    subPCtx.setContext(ctx);
    ((SemanticAnalyzer) sem).initParseCtx(subPCtx);

    LOG.info("Starting Sub-query Semantic Analysis");
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    return TaskFactory.get(new DDLWork(inputs, outputs, roleDesc), conf);
  }
  @Override
  public Task<? extends Serializable> createShowRoleGrantTask(ASTNode ast, Path resultFile,
      HashSet<ReadEntity> inputs, HashSet<WriteEntity> outputs) {
    ASTNode child = (ASTNode) ast.getChild(0);
    PrincipalType principalType = PrincipalType.USER;
    switch (child.getType()) {
    case HiveParser.TOK_USER:
      principalType = PrincipalType.USER;
      break;
    case HiveParser.TOK_GROUP:
      principalType = PrincipalType.GROUP;
      break;
    case HiveParser.TOK_ROLE:
      principalType = PrincipalType.ROLE;
      break;
    }
    String principalName = BaseSemanticAnalyzer.unescapeIdentifier(child.getChild(0).getText());
    RoleDDLDesc roleDesc = new RoleDDLDesc(principalName, principalType,
        RoleDDLDesc.RoleOperation.SHOW_ROLE_GRANT, null);
    roleDesc.setResFile(resultFile.toString());
    return TaskFactory.get(new DDLWork(inputs, outputs,  roleDesc), conf);
  }
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    boolean grantOption = false;
    PrivilegeObjectDesc privilegeObj = null;

    if (ast.getChildCount() > 2) {
      for (int i = 2; i < ast.getChildCount(); i++) {
        ASTNode astChild = (ASTNode) ast.getChild(i);
        if (astChild.getType() == HiveParser.TOK_GRANT_WITH_OPTION) {
          grantOption = true;
        } else if (astChild.getType() == HiveParser.TOK_PRIV_OBJECT) {
          privilegeObj = analyzePrivilegeObject(astChild, outputs);
        }
      }
    }
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