org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl Class Reference

Inheritance diagram for org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl:

Collaboration diagram for org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl:

Public Member Functions
	HeavyDBRelWriterImpl (PrintWriter pw)
	HeavyDBRelWriterImpl (PrintWriter pw, SqlExplainLevel detailLevel, boolean withIdPrefix)
Set< String >	collectRelColumnOrigin (RelMetadataQuery mq, RelNode rel, int targetColumnIndex)
final void	explain (RelNode rel, List< Pair< String,@Nullable Object >> valueList)
SqlExplainLevel	getDetailLevel ()
RelWriter	item (String term,@Nullable Object value)
RelWriter	done (RelNode node)
String	simple ()

Protected Member Functions
void	explain_ (RelNode rel, List< Pair< String,@Nullable Object >> values)

Protected Attributes
final PrintWriter	pw
final SqlExplainLevel	detailLevel
final boolean	withIdPrefix
final Spacer	spacer = new Spacer()

Private Member Functions
void	explainInputs (List< RelNode > inputs)
boolean	checkInputsPresentInExplain (RelNode node)

Private Attributes
final List< Pair< String,@Nullable Object > >	values = new ArrayList<>()

Detailed Description

Implementation of org.apache.calcite.rel.RelWriter.

Definition at line 43 of file HeavyDBRelWriterImpl.java.

Constructor & Destructor Documentation

org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.HeavyDBRelWriterImpl ( PrintWriter  pw )

inline

Definition at line 54 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.pw.

                                              {
    this(pw, SqlExplainLevel.EXPPLAN_ATTRIBUTES, true);
  }

org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.HeavyDBRelWriterImpl ( PrintWriter  pw, SqlExplainLevel  detailLevel, boolean  withIdPrefix  )

inline

Definition at line 58 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.detailLevel, org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.pw, and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.withIdPrefix.

                                                                             {
    this.pw = pw;
    this.detailLevel = detailLevel;
    this.withIdPrefix = withIdPrefix;
  }

Member Function Documentation

boolean org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.checkInputsPresentInExplain ( RelNode  node )

inlineprivate

Definition at line 234 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.values.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.done().

                                                            {
    int i = 0;
    if (values.size() > 0 && values.get(0).left.equals("subset")) {
      ++i;
    }
    for (RelNode input : node.getInputs()) {
      assert values.get(i).right == input;
      ++i;
    }
    return true;
  }

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Set<String> org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.collectRelColumnOrigin ( RelMetadataQuery  mq, RelNode  rel, int  targetColumnIndex  )

inline

Definition at line 67 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_().

                                                                   {
    Set<RelColumnOrigin> columnOrigins = new HashSet<>();
    Map<String, Set<String>> originInfoMap = new HashMap<>();
    Set<String> originInfo = new HashSet<>();
    try {
      if (!rel.getInputs().isEmpty()) {
        RelNode sourceNode = rel.getInputs().size() == 1 ? rel.getInput(0) : rel;
        columnOrigins = mq.getColumnOrigins(sourceNode, targetColumnIndex);
      }
      for (RelColumnOrigin rco : columnOrigins) {
        RelOptTable relOptTable = rco.getOriginTable();
        String dbName = relOptTable.getQualifiedName().get(0);
        String tableName = relOptTable.getQualifiedName().get(1);
        String colName = relOptTable.getRowType()
                                 .getFieldList()
                                 .get(rco.getOriginColumnOrdinal())
                                 .getName();
        String key = "$" + targetColumnIndex;
        String info = "db:" + dbName + ",tableName:" + tableName + ",colName:" + colName;
        if (originInfoMap.containsKey(key)) {
          originInfoMap.get(key).add(info);
        } else {
          Set<String> originList = new HashSet<>();
          originList.add(info);
          originInfoMap.put(key, originList);
        }
      }
    } catch (Exception ex) {
      throw new RuntimeException("EXPLAIN CALCITE DETAILED error: " + ex.getMessage());
    }

    for (Map.Entry<String, Set<String>> entry : originInfoMap.entrySet()) {
      int index = 1;
      for (String colInfo : entry.getValue()) {
        if (entry.getValue().size() > 1) {
          originInfo.add(entry.getKey() + "-" + index + "->" + colInfo);
        } else {
          originInfo.add(entry.getKey() + "->" + colInfo);
        }
        index++;
      }
    }
    return originInfo;
  }

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RelWriter org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.done ( RelNode  node )

inline

Definition at line 225 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.checkInputsPresentInExplain(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.values.

                                      {
    assert checkInputsPresentInExplain(node);
    final List<Pair<String, @Nullable Object>> valuesCopy = ImmutableList.copyOf(values);
    values.clear();
    explain_(node, valuesCopy);
    pw.flush();
    return this;
  }

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final void org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain ( RelNode  rel, List< Pair< String,@Nullable Object >>  valueList  )

inline

Definition at line 209 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_().

                                                                                         {
    explain_(rel, valueList);
  }

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void org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_ ( RelNode  rel, List< Pair< String,@Nullable Object >>  values  )

inlineprotected

Definition at line 113 of file HeavyDBRelWriterImpl.java.

References File_Namespace.append(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.collectRelColumnOrigin(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.detailLevel, org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explainInputs(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.values, and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.withIdPrefix.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.done(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain().

                                                                                    {
    List<RelNode> inputs = rel.getInputs();
    final RelMetadataQuery mq = rel.getCluster().getMetadataQuery();
    if (!mq.isVisibleInExplain(rel, detailLevel)) {
      // render children in place of this, at same level
      explainInputs(inputs);
      return;
    }

    StringBuilder s = new StringBuilder();
    spacer.spaces(s);
    if (withIdPrefix) {
      s.append(rel.getId()).append(":");
    }
    s.append(rel.getRelTypeName());
    if (detailLevel != SqlExplainLevel.NO_ATTRIBUTES) {
      int j = 0;
      for (Pair<String, @Nullable Object> value : values) {
        if (value.right instanceof RelNode) {
          continue;
        }
        if (j++ == 0) {
          s.append("(");
        } else {
          s.append(", ");
        }
        s.append(value.left).append("=[").append(value.right).append("]");
      }
      if (j > 0) {
        s.append(")");
      }
    }
    switch (detailLevel) {
      case ALL_ATTRIBUTES:
        s.append(": rowcount = ")
                .append(mq.getRowCount(rel))
                .append(", cumulative cost = ")
                .append(mq.getCumulativeCost(rel));
        break;
      default:
        break;
    }
    switch (detailLevel) {
      case NON_COST_ATTRIBUTES:
      case ALL_ATTRIBUTES:
        if (!withIdPrefix) {
          // If we didn't print the rel id at the start of the line, print
          // it at the end.
          s.append(", id = ").append(rel.getId());
        }
        break;
      default:
        break;
    }
    Set<String> originInfo = new HashSet<>();
    if (rel instanceof LogicalAggregate) {
      LogicalAggregate aggregate = (LogicalAggregate) rel;
      for (AggregateCall aggCall : aggregate.getAggCallList()) {
        for (int expressionIndex : aggCall.getArgList()) {
          originInfo.addAll(collectRelColumnOrigin(mq, rel, expressionIndex));
        }
      }
    } else {
      rel.accept(new RexShuttle() {
        @Override
        public RexNode visitInputRef(final RexInputRef inputRef) {
          originInfo.addAll(collectRelColumnOrigin(mq, rel, inputRef.getIndex()));
          return inputRef;
        }
      });
    }
    if (!originInfo.isEmpty()) {
      s.append("\t{");
      int index = 1;
      for (String info : originInfo) {
        s.append("[").append(info).append("]");
        if (index < originInfo.size()) {
          s.append(", ");
        }
        index++;
      }
      s.append("}");
    }
    pw.println(s);
    spacer.add(2);
    explainInputs(inputs);
    spacer.subtract(2);
  }

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void org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explainInputs ( List< RelNode >  inputs )

inlineprivate

Definition at line 202 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_().

                                                   {
    for (RelNode input : inputs) {
      input.explain(this);
    }
  }

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SqlExplainLevel org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.getDetailLevel ( )

inline

Definition at line 214 of file HeavyDBRelWriterImpl.java.

References org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.detailLevel.

                                          {
    return detailLevel;
  }

RelWriter org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.item ( String  term, @Nullable Object  value  )

inline

Definition at line 219 of file HeavyDBRelWriterImpl.java.

                                                             {
    values.add(Pair.of(term, value));
    return this;
  }

String org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.simple ( )

inline

Converts the collected terms and values to a string. Does not write to the parent writer.

Definition at line 250 of file HeavyDBRelWriterImpl.java.

References File_Namespace.append(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.values.

                         {
    final StringBuilder buf = new StringBuilder("(");
    for (Ord<Pair<String, @Nullable Object>> ord : Ord.zip(values)) {
      if (ord.i > 0) {
        buf.append(", ");
      }
      buf.append(ord.e.left).append("=[").append(ord.e.right).append("]");
    }
    buf.append(")");
    return buf.toString();
  }

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Member Data Documentation

final SqlExplainLevel org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.detailLevel

protected

Definition at line 47 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.getDetailLevel(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.HeavyDBRelWriterImpl().

final PrintWriter org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.pw

protected

Definition at line 46 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.HeavyDBRelWriterImpl().

final Spacer org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.spacer = new Spacer()

protected

Definition at line 49 of file HeavyDBRelWriterImpl.java.

final List<Pair<String, @Nullable Object> > org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.values = new ArrayList<>()

private

Definition at line 50 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.checkInputsPresentInExplain(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.done(), org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.simple().

final boolean org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.withIdPrefix

protected

Definition at line 48 of file HeavyDBRelWriterImpl.java.

Referenced by org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.explain_(), and org.apache.calcite.rel.externalize.HeavyDBRelWriterImpl.HeavyDBRelWriterImpl().

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/java/calcite/src/main/java/org/apache/calcite/rel/externalize/HeavyDBRelWriterImpl.java