Package org.apache.hadoop.hive.ql.lib

Examples of org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher

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      OpProcFactory.getReduceSinkProc());
    opRules.put(new RuleRegExp("R9", LateralViewJoinOperator.getOperatorName() + "%"),
      OpProcFactory.getLateralViewJoinProc());

    // The dispatcher fires the processor corresponding to the closest matching rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(OpProcFactory.getDefaultProc(), opRules, lCtx);
    GraphWalker ogw = new PreOrderWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
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      MapJoinOperator.getOperatorName() + "%.*" + UnionOperator.getOperatorName() + "%"),
      getMapJoinDefault());

    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(getDefault(), opRules, new MapJoinWalkerCtx(
        listMapJoinOpsNoRed, pGraphContext));

    GraphWalker ogw = new GenMapRedWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(listMapJoinOps);
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    opRules.put(new RuleRegExp("R5", HiveParser.TOK_TABLE_OR_COL + "%"),
        getColumnExprProcessor());

    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(getDefaultExprProcessor(),
        opRules, tcCtx);
    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
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        GroupByOperator.getOperatorName() + "%.*" + FileSinkOperator.getOperatorName() + "%"),
        new FileSinkProcessor());

      // The dispatcher fires the processor corresponding to the closest
      // matching rule and passes the context along
      Dispatcher disp = new DefaultRuleDispatcher(null, opRules, walkerCtx);
      GraphWalker ogw = new PreOrderWalker(disp);

      // Create a list of topOp nodes
      ArrayList<Node> topNodes = new ArrayList<Node>();
      // Get the top Nodes for this map-reduce task
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    // The dispatcher fires the processor for the matching rule and passes the
    // context along
    UnionProcContext uCtx = new UnionProcContext();
    uCtx.setParseContext(pCtx);
    Dispatcher disp = new DefaultRuleDispatcher(UnionProcFactory.getNoUnion(),
        opRules, uCtx);
    GraphWalker ogw = new PreOrderWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pCtx.getTopOps().values());
    ogw.startWalking(topNodes, null);
    pCtx.setUCtx(uCtx);

    // Walk the tree again to see if the union can be removed completely
    HiveConf conf = pCtx.getConf();
    opRules.clear();
    if (conf.getBoolVar(HiveConf.ConfVars.HIVE_OPTIMIZE_UNION_REMOVE)) {

      if (!conf.getBoolVar(HiveConf.ConfVars.HIVE_HADOOP_SUPPORTS_SUBDIRECTORIES)) {
        throw new
        SemanticException(ErrorMsg.HIVE_UNION_REMOVE_OPTIMIZATION_NEEDS_SUBDIRECTORIES.getMsg());
      }

      opRules.put(new RuleRegExp("R5", UnionOperator.getOperatorName() + "%" +
                                 ".*" + FileSinkOperator.getOperatorName() + "%"),
        UnionProcFactory.getUnionNoProcessFile());

      disp = new DefaultRuleDispatcher(UnionProcFactory.getNoUnion(), opRules, uCtx);
      ogw = new PreOrderWalker(disp);

      // Create a list of topop nodes
      topNodes.clear();
      topNodes.addAll(pCtx.getTopOps().values());
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      Map<Rule, NodeProcessor> opRules = new LinkedHashMap<Rule, NodeProcessor>();
      opRules.put(new RuleRegExp("R1", GroupByOperator.getOperatorName() + "%"),
        LocalMapJoinProcFactory.getGroupByProc());
      // The dispatcher fires the processor corresponding to the closest
      // matching rule and passes the context along
      Dispatcher disp = new DefaultRuleDispatcher(LocalMapJoinProcFactory.getDefaultProc(),
          opRules, localMapJoinProcCtx);
      GraphWalker ogw = new DefaultGraphWalker(disp);
      // iterator the reducer operator tree
      ArrayList<Node> topNodes = new ArrayList<Node>();
      topNodes.addAll(childOps);
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    // join.
    opRules.put(new RuleRegExp("R1", MapJoinOperator.getOperatorName() + "%"),
        getSortedMergeBucketMapjoinProc(pctx));
    // The dispatcher fires the processor corresponding to the closest matching
    // rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(getDefaultProc(), opRules, null);
    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
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    opRules.put(new RuleRegExp(new String("R9"), "UNION%.*MAPJOIN%"), MapJoinFactory.getUnionMapJoin());
    opRules.put(new RuleRegExp(new String("R10"), "MAPJOIN%.*MAPJOIN%"), MapJoinFactory.getMapJoinMapJoin());
    opRules.put(new RuleRegExp(new String("R11"), "MAPJOIN%SEL%"), MapJoinFactory.getMapJoin());

    // The dispatcher fires the processor corresponding to the closest matching rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(new GenMROperator(), opRules, procCtx);

    GraphWalker ogw = new GenMapRedWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(this.topOps.values());
    ogw.startWalking(topNodes, null);
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    opRules.put(new RuleRegExp("R4", HiveParser.KW_TRUE + "%|" + HiveParser.KW_FALSE + "%"),
                               TypeCheckProcFactory.getBoolExprProcessor());
    opRules.put(new RuleRegExp("R5", HiveParser.TOK_TABLE_OR_COL + "%"), TypeCheckProcFactory.getColumnExprProcessor());

    // The dispatcher fires the processor corresponding to the closest matching rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(TypeCheckProcFactory.getDefaultExprProcessor(), opRules, tcCtx);
    GraphWalker ogw = new DefaultGraphWalker(disp);
  
    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(expr);
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    exprRules.put(new RuleRegExp("R2", exprNodeFieldDesc.class.getName() + "%"), getFieldProcessor());
    exprRules.put(new RuleRegExp("R3", exprNodeFuncDesc.class.getName() + "%"), getFuncProcessor());
    exprRules.put(new RuleRegExp("R5", exprNodeGenericFuncDesc.class.getName() + "%"), getGenericFuncProcessor());
 
    // The dispatcher fires the processor corresponding to the closest matching rule and passes the context along
    Dispatcher disp = new DefaultRuleDispatcher(getDefaultExprProcessor(), exprRules, pprCtx);
    GraphWalker egw = new DefaultGraphWalker(disp);
 
    List<Node> startNodes = new ArrayList<Node>();
    startNodes.add(pred);
   
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