Examples of eu.stratosphere.api.common.InvalidProgramException

eu.stratosphere.api.common.InvalidProgramException
An exception thrown to indicate that the composed program is invalid. Examples of invalid programs are operations where crucial parameters are omitted, or functions where the input type and the type signature do not match.

   *        FileDataSink that is checked.
   */
  private void checkFileDataSink(FileDataSinkBase<?> fileSink) {
    String path = fileSink.getFilePath();
    if (path == null) {
      throw new InvalidProgramException("File path of FileDataSink is null.");
    }
    if (path.length() == 0) {
      throw new InvalidProgramException("File path of FileDataSink is empty string.");
    }
    
    try {
      Path p = new Path(path);
      String scheme = p.toUri().getScheme();
      
      if (scheme == null) {
        throw new InvalidProgramException("File path \"" + path + "\" of FileDataSink has no file system scheme (like 'file:// or hdfs://').");
      }
    } catch (Exception e) {
      throw new InvalidProgramException("File path \"" + path + "\" of FileDataSink is an invalid path: " + e.getMessage());
    }
    checkDataSink(fileSink);
  }

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   *        FileDataSource that is checked.
   */
  private void checkFileDataSource(FileDataSourceBase<?> fileSource) {
    String path = fileSource.getFilePath();
    if (path == null) {
      throw new InvalidProgramException("File path of FileDataSource is null.");
    }
    if (path.length() == 0) {
      throw new InvalidProgramException("File path of FileDataSource is empty string.");
    }
    
    try {
      Path p = new Path(path);
      String scheme = p.toUri().getScheme();
      
      if (scheme == null) {
        throw new InvalidProgramException("File path \"" + path + "\" of FileDataSource has no file system scheme (like 'file:// or hdfs://').");
      }
    } catch (Exception e) {
      throw new InvalidProgramException("File path \"" + path + "\" of FileDataSource is an invalid path: " + e.getMessage());
    }
  }

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    }


    Matcher matcher = PATTERN_ANNOTATION.matcher(s);


    if (!matcher.matches()) {
      throw new InvalidProgramException("Unrecognized annotation string format.");
    }


    Matcher forwardMatcher = PATTERN_FORWARD.matcher(s);
    while (forwardMatcher.find()) {
      int sourceField = Integer.valueOf(forwardMatcher.group(2));

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  private static FieldSet readFieldSetFromString(String s, TypeInformation<?> inType, TypeInformation<?> outType) {
    Matcher matcher = PATTERN_LIST.matcher(s);


    if (!matcher.matches()) {
      throw new InvalidProgramException("Unrecognized annotation string format.");
    }


    matcher = PATTERN_DIGIT.matcher(s);
    FieldSet fs = new FieldSet();

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        if (keys1 == null) {
          throw new NullPointerException();
        }


        if (keys1.isEmpty()) {
          throw new InvalidProgramException("The join keys must not be empty.");
        }


        this.keys1 = keys1;
      }

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        if (keys2 == null) {
          throw new NullPointerException();
        }


        if (keys2.isEmpty()) {
          throw new InvalidProgramException("The join keys must not be empty.");
        }


        if (!keys1.areCompatibale(keys2)) {
          throw new InvalidProgramException("The pair of join keys are not compatible with each other.");
        }


        return new CoGroupOperatorWithoutFunction(keys2);
      }

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          if (keys2 == null) {
            throw new NullPointerException();
          }


          if (keys2.isEmpty()) {
            throw new InvalidProgramException("The join keys must not be empty.");
          }


          this.keys2 = keys2;
        }

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      this(groupingFields, type, false);
    }
    
    public FieldPositionKeys(int[] groupingFields, TypeInformation<T> type, boolean allowEmpty) {
      if (!type.isTupleType()) {
        throw new InvalidProgramException("Specifying keys via field positions is only valid for tuple data types");
      }
      
      if (!allowEmpty && (groupingFields == null || groupingFields.length == 0)) {
        throw new IllegalArgumentException("The grouping fields must not be empty.");
      }

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    }
    
    public void checkJoinKeyFields(int[] keyFields) {
      int[] ssKeys = deltaIteration.keys.computeLogicalKeyPositions();
      if (!Arrays.equals(ssKeys, keyFields)) {
        throw new InvalidProgramException("The solution set must be joind with using the keys with which elements are identified.");
      }
    }

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    try {
      return createInput(inputFormat, TypeExtractor.getInputFormatTypes(inputFormat));
    }
    catch (Exception e) {
      throw new InvalidProgramException("The type returned by the input format could not be automatically determined. " +
          "Please specify the TypeInformation of the produced type explicitly.");
    }
  }

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Related Classes of eu.stratosphere.api.common.InvalidProgramException

eu.stratosphere.api.common.operators.base.BulkIterationBase

eu.stratosphere.api.java.DeltaIteration$SolutionSetPlaceHolder

eu.stratosphere.api.java.ExecutionEnvironment

eu.stratosphere.api.java.functions.FunctionAnnotation

eu.stratosphere.api.java.functions.SemanticPropUtil

eu.stratosphere.api.java.io.CollectionInputFormat

eu.stratosphere.api.java.io.CsvOutputFormat

eu.stratosphere.api.java.LocalEnvironment

eu.stratosphere.api.java.operators.AggregateOperator

eu.stratosphere.api.java.operators.CoGroupOperator$CoGroupOperatorSets$CoGroupOperatorSetsPredicate

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