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

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

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    public ASTNode visitLiteral(RexLiteral literal) {
      return ASTBuilder.literal(literal, useTypeQualInLiteral);
    }

    private ASTNode getPSpecAST(RexWindow window) {
      ASTNode pSpecAst = null;

      ASTNode dByAst = null;
      if (window.partitionKeys != null && !window.partitionKeys.isEmpty()) {
        dByAst = ASTBuilder.createAST(HiveParser.TOK_DISTRIBUTEBY, "TOK_DISTRIBUTEBY");
        for (RexNode pk : window.partitionKeys) {
          ASTNode astCol = pk.accept(this);
          dByAst.addChild(astCol);
        }
      }

      ASTNode oByAst = null;
      if (window.orderKeys != null && !window.orderKeys.isEmpty()) {
        oByAst = ASTBuilder.createAST(HiveParser.TOK_ORDERBY, "TOK_ORDERBY");
        for (RexFieldCollation ok : window.orderKeys) {
          ASTNode astNode = ok.getDirection() == RelFieldCollation.Direction.ASCENDING ? ASTBuilder
              .createAST(HiveParser.TOK_TABSORTCOLNAMEASC, "TOK_TABSORTCOLNAMEASC") : ASTBuilder
              .createAST(HiveParser.TOK_TABSORTCOLNAMEDESC, "TOK_TABSORTCOLNAMEDESC");
          ASTNode astCol = ok.left.accept(this);
          astNode.addChild(astCol);
          oByAst.addChild(astNode);
        }
      }
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      return pSpecAst;
    }

    private ASTNode getWindowBound(RexWindowBound wb) {
      ASTNode wbAST = null;

      if (wb.isCurrentRow()) {
        wbAST = ASTBuilder.createAST(HiveParser.KW_CURRENT, "CURRENT");
      } else {
        if (wb.isPreceding())
          wbAST = ASTBuilder.createAST(HiveParser.KW_PRECEDING, "PRECEDING");
        else
          wbAST = ASTBuilder.createAST(HiveParser.KW_FOLLOWING, "FOLLOWING");
        if (wb.isUnbounded()) {
          wbAST.addChild(ASTBuilder.createAST(HiveParser.KW_UNBOUNDED, "UNBOUNDED"));
        } else {
          ASTNode offset = wb.getOffset().accept(this);
          wbAST.addChild(offset);
        }
      }

      return wbAST;
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      return wbAST;
    }

    private ASTNode getWindowRangeAST(RexWindow window) {
      ASTNode wRangeAst = null;

      ASTNode startAST = null;
      RexWindowBound ub = window.getUpperBound();
      if (ub != null) {
        startAST = getWindowBound(ub);
      }

      ASTNode endAST = null;
      RexWindowBound lb = window.getLowerBound();
      if (lb != null) {
        endAST = getWindowBound(lb);
      }
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      if (!deep) {
        return null;
      }

      // 1. Translate the UDAF
      final ASTNode wUDAFAst = visitCall(over);

      // 2. Add TOK_WINDOW as child of UDAF
      ASTNode wSpec = ASTBuilder.createAST(HiveParser.TOK_WINDOWSPEC, "TOK_WINDOWSPEC");
      wUDAFAst.addChild(wSpec);

      // 3. Add Part Spec & Range Spec as child of TOK_WINDOW
      final RexWindow window = over.getWindow();
      final ASTNode wPSpecAst = getPSpecAST(window);
      final ASTNode wRangeAst = getWindowRangeAST(window);
      if (wPSpecAst != null)
        wSpec.addChild(wPSpecAst);
      if (wRangeAst != null)
        wSpec.addChild(wRangeAst);
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  // TODO: 1) handle Agg Func Name translation 2) is it correct to add func args
  // as child of func?
  public static ASTNode buildAST(SqlOperator op, List<ASTNode> children) {
    HiveToken hToken = optiqToHiveToken.get(op);
    ASTNode node;
    if (hToken != null) {
      node = (ASTNode) ParseDriver.adaptor.create(hToken.type, hToken.text);
    } else {
      node = (ASTNode) ParseDriver.adaptor.create(HiveParser.TOK_FUNCTION, "TOK_FUNCTION");
      if (op.kind != SqlKind.CAST) {
        if (op.kind == SqlKind.MINUS_PREFIX) {
          node = (ASTNode) ParseDriver.adaptor.create(HiveParser.MINUS, "MINUS");
        } else if (op.kind == SqlKind.PLUS_PREFIX) {
          node = (ASTNode) ParseDriver.adaptor.create(HiveParser.PLUS, "PLUS");
        } else {
          if (op.getName().toUpperCase().equals(SqlStdOperatorTable.COUNT.getName())
              && children.size() == 0) {
            node = (ASTNode) ParseDriver.adaptor.create(HiveParser.TOK_FUNCTIONSTAR,
                "TOK_FUNCTIONSTAR");
          }
          node.addChild((ASTNode) ParseDriver.adaptor.create(HiveParser.Identifier, op.getName()));
        }
      }
    }

    for (ASTNode c : children) {
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   * "or[x, or[y, z]]".
   */
  public static ASTNode buildAST(SqlOperator op, List<ASTNode> children, int i) {
    if (i + 1 < children.size()) {
      HiveToken hToken = optiqToHiveToken.get(op);
      ASTNode curNode = ((ASTNode) ParseDriver.adaptor.create(hToken.type, hToken.text));
      ParseDriver.adaptor.addChild(curNode, children.get(i));
      ParseDriver.adaptor.addChild(curNode, buildAST(op, children, i + 1));
      return curNode;
    } else {
      return children.get(i);
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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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    List<PrivilegeDesc> privilegeDesc = analyzePrivilegeListDef((ASTNode) ast.getChild(0));
    List<PrincipalDesc> principalDesc = AuthorizationParseUtils.analyzePrincipalListDef((ASTNode) ast.getChild(1));
    PrivilegeObjectDesc hiveObj = null;
    boolean grantOption = false;
    if (ast.getChildCount() > 2) {
      ASTNode astChild = (ASTNode) ast.getChild(2);
      hiveObj = analyzePrivilegeObject(astChild, outputs);

      if (null != ast.getFirstChildWithType(HiveParser.TOK_GRANT_OPTION_FOR)) {
        grantOption = true;
      }
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      HashSet<WriteEntity> outputs) throws SemanticException {

    PrincipalDesc principalDesc = null;
    PrivilegeObjectDesc privHiveObj = null;

    ASTNode param = null;
    if (ast.getChildCount() > 0) {
      param = (ASTNode) ast.getChild(0);
      principalDesc = AuthorizationParseUtils.getPrincipalDesc(param);
      if (principalDesc != null) {
        param = (ASTNode) ast.getChild(1);  // shift one
      }
    }

    if (param != null) {
      if (param.getType() == HiveParser.TOK_RESOURCE_ALL) {
        privHiveObj = new PrivilegeObjectDesc();
      } else if (param.getType() == HiveParser.TOK_PRIV_OBJECT_COL) {
        privHiveObj = parsePrivObject(param);
      }
    }

    ShowGrantDesc showGrant = new ShowGrantDesc(resultFile.toString(),
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