Package com.odiago.flumebase.exec

Examples of com.odiago.flumebase.exec.HashSymbolTable

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  /**
   * Main constructor.
   */
  public LocalEnvironment(Configuration conf) {
    this(conf,
        new HashSymbolTable(new BuiltInSymbolTable()),
        new HashMap<String, MemoryOutputElement>(),
        new EmbeddedFlumeConfig(conf));
  }
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    TypeChecker checker;
    Object value;

    unaryExpr = new UnaryExpr(UnaryOp.Not,
        new ConstExpr(Type.getPrimitive(Type.TypeName.BOOLEAN), Boolean.FALSE));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);

    unaryExpr = new UnaryExpr(UnaryOp.Not,
        new ConstExpr(Type.getPrimitive(Type.TypeName.BOOLEAN), Boolean.TRUE));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.FALSE, value);

    unaryExpr = new UnaryExpr(UnaryOp.Not,
        new ConstExpr(Type.getNullable(Type.TypeName.BOOLEAN), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(null, value);

    unaryExpr = new UnaryExpr(UnaryOp.Not,
        new UnaryExpr(UnaryOp.Not,
          new ConstExpr(Type.getPrimitive(Type.TypeName.BOOLEAN), Boolean.TRUE)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);

    try {
      unaryExpr = new UnaryExpr(UnaryOp.Not,
          new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(42)));
      checker = new TypeChecker(new HashSymbolTable());
      unaryExpr.accept(checker);
      fail("Expected typechecker error on NOT(INTEGER)");
    } catch (TypeCheckException tce) {
      // expected this -- ok.
    }
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    TypeChecker checker;
    Object value;

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(-10), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(0)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(0), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.BIGINT), Long.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Long.valueOf(42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.FLOAT), Float.valueOf(-42f)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Float.valueOf(42f), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.DOUBLE), Double.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Double.valueOf(42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new ConstExpr(Type.getNullable(Type.TypeName.DOUBLE), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(null, value);

    unaryExpr = new UnaryExpr(UnaryOp.Minus,
        new UnaryExpr(UnaryOp.Minus,
          new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(12))));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(12), value);

    try {
      unaryExpr = new UnaryExpr(UnaryOp.Minus,
          new ConstExpr(Type.getPrimitive(Type.TypeName.STRING), "hello"));
      checker = new TypeChecker(new HashSymbolTable());
      unaryExpr.accept(checker);
      fail("Expected typechecker error on -(STRING)");
    } catch (TypeCheckException tce) {
      // expected this -- ok.
    }
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    TypeChecker checker;
    Object value;

    unaryExpr = new UnaryExpr(UnaryOp.IsNull,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.FALSE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNull,
        new ConstExpr(Type.getNullable(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.FALSE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNull,
        new ConstExpr(Type.getNullable(Type.TypeName.INT), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNull,
        new ConstExpr(Type.getNullable(Type.TypeName.STRING), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);
  }
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    TypeChecker checker;
    Object value;

    unaryExpr = new UnaryExpr(UnaryOp.IsNotNull,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNotNull,
        new ConstExpr(Type.getNullable(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.TRUE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNotNull,
        new ConstExpr(Type.getNullable(Type.TypeName.INT), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.FALSE, value);

    unaryExpr = new UnaryExpr(UnaryOp.IsNotNull,
        new ConstExpr(Type.getNullable(Type.TypeName.STRING), null));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Boolean.FALSE, value);
  }
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    TypeChecker checker;
    Object value;

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(10)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(10), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(-42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(0)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(0), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.BIGINT), Long.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Long.valueOf(-42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.FLOAT), Float.valueOf(-42f)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Float.valueOf(-42f), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new ConstExpr(Type.getPrimitive(Type.TypeName.DOUBLE), Double.valueOf(-42)));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Double.valueOf(-42), value);

    unaryExpr = new UnaryExpr(UnaryOp.Plus,
        new UnaryExpr(UnaryOp.Plus,
          new ConstExpr(Type.getPrimitive(Type.TypeName.INT), Integer.valueOf(12))));
    checker = new TypeChecker(new HashSymbolTable());
    unaryExpr.accept(checker);
    value = unaryExpr.eval(getEmptyEventWrapper());
    assertEquals(Integer.valueOf(12), value);

    try {
      unaryExpr = new UnaryExpr(UnaryOp.Plus,
          new ConstExpr(Type.getPrimitive(Type.TypeName.STRING), "hello"));
      checker = new TypeChecker(new HashSymbolTable());
      unaryExpr.accept(checker);
      fail("Expected typechecker error on +(STRING)");
    } catch (TypeCheckException tce) {
      // expected this -- ok.
    }
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  @Test
  public void testLengthFn() throws Exception {
    FnCallExpr fnCallExpr;
    TypeChecker checker;
    Object value;
    SymbolTable symbols = new HashSymbolTable(new BuiltInSymbolTable());

    // This is expected to succeed.
    fnCallExpr = new FnCallExpr("length");
    fnCallExpr.addArg(new ConstExpr(Type.getPrimitive(Type.TypeName.STRING), "meep"));
    checker = new TypeChecker(symbols);
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   * <p>Modifies nextFieldId to contain the next id after applying ids to all
   * fields of this stream.</p>
   */
  public SymbolTable getFieldsSymbolTable(SymbolTable inTable, Ref<Integer> nextFieldId) {
    int nextId = nextFieldId.item.intValue();
    SymbolTable outTable = new HashSymbolTable(inTable);

    // Guaranteed non-null by our typechecker.
    StreamSymbol streamSym = (StreamSymbol) inTable.resolve(getName()).resolveAliases();

    String streamAlias = getAlias();
    if (null == streamAlias) {
      streamAlias = getName();
    }

    for (TypedField field : streamSym.getFields()) {
      String fieldName = field.getUserAlias();

      // This field is available as 'streamName.fieldName'.
      String fullName = streamAlias + "." + fieldName;
      AssignedSymbol sym = new AssignedSymbol(fullName, field.getType(), "__f_" + nextId + "_",
          IdentifierExpr.AccessType.FIELD);
      sym.setParentName(streamAlias);
      nextId++;
      outTable.addSymbol(sym);

      // And also as an alias of just the fieldName.
      outTable.addSymbol(new AliasSymbol(fieldName, sym));
    }

    nextFieldId.item = Integer.valueOf(nextId);
    mSymbols = outTable;
    return outTable;
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  public PlanContext() {
    mConf = new Configuration();
    mMsgBuilder = new StringBuilder();
    mFlowSpec = new FlowSpecification(mConf);
    mSymTable = new HashSymbolTable();
    mIsRoot = true;
    mSchema = null;
    mIsExplain = false;
    mOutFields = new ArrayList<TypedField>();
  }
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      // symbol table that contains the fields we expose through projection.
      // We also need to set the output field names and output schema in our
      // returned context.
      outContext = new PlanContext(planContext);
      SymbolTable inTable = planContext.getSymbolTable();
      SymbolTable outTable = new HashSymbolTable(inTable);
      outputFields = distinctFields(outputFields);
      outTable.addAll(mFieldSymbols);
      Schema outputSchema = createFieldSchema(outputFields);
      ProjectionNode cleanupProjection = new ProjectionNode(outputFields, outputFields);
      cleanupProjection.setAttr(PlanNode.OUTPUT_SCHEMA_ATTR, outputSchema);
      flowSpec.attachToLastLayer(cleanupProjection);
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Related Classes of com.odiago.flumebase.exec.HashSymbolTable

  • com.odiago.flumebase.exec.local.LocalEnvironment
  • com.odiago.flumebase.lang.TestTypeChecker
  • com.odiago.flumebase.lang.TypeChecker
  • com.odiago.flumebase.parser.LiteralSource
  • com.odiago.flumebase.parser.SelectStmt
  • com.odiago.flumebase.parser.TestBinExpr
  • com.odiago.flumebase.parser.TestFnCallExpr
  • com.odiago.flumebase.parser.TestIdentifierExpr
  • com.odiago.flumebase.parser.TestUnaryExpr
  • com.odiago.flumebase.plan.PlanContext
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