Examples with FrontendException org.apache.pig.impl.logicalLayer.FrontendException used on opensource projects

Example 1 with FrontendException

use of org.apache.pig.impl.logicalLayer.FrontendException in project sketches-pig by DataSketches.

the class SketchToEstimateAndErrorBounds method outputSchema.

/**
 * The output is a Sketch Result Tuple Schema.
 */
@Override
public Schema outputSchema(final Schema input) {
    if (input == null) {
        return null;
    }
    try {
        final Schema tupleSchema = new Schema();
        tupleSchema.add(new Schema.FieldSchema("Estimate", DataType.DOUBLE));
        tupleSchema.add(new Schema.FieldSchema("LowerBound", DataType.DOUBLE));
        tupleSchema.add(new Schema.FieldSchema("UpperBound", DataType.DOUBLE));
        return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), tupleSchema, DataType.TUPLE));
    } catch (final FrontendException e) {
        throw new RuntimeException(e);
    }
}

Example 2 with FrontendException

use of org.apache.pig.impl.logicalLayer.FrontendException in project sketches-pig by DataSketches.

the class DataToDoublesSketch method outputSchema.

@Override
public Schema outputSchema(final Schema input) {
    if (input == null) {
        return null;
    }
    try {
        final Schema tupleSchema = new Schema();
        tupleSchema.add(new Schema.FieldSchema("Sketch", DataType.BYTEARRAY));
        return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), tupleSchema, DataType.TUPLE));
    } catch (final FrontendException e) {
        throw new RuntimeException(e);
    }
}

Example 3 with FrontendException

use of org.apache.pig.impl.logicalLayer.FrontendException in project sketches-pig by DataSketches.

the class MurmurHash3 method outputSchema.

/**
 * The output consists of two longs, or 128 bits, plus the result of the modulo division if
 * specified.
 */
@Override
public Schema outputSchema(final Schema input) {
    if (input != null) {
        try {
            final Schema tupleSchema = new Schema();
            tupleSchema.add(new Schema.FieldSchema("Hash0", DataType.LONG));
            tupleSchema.add(new Schema.FieldSchema("Hash1", DataType.LONG));
            tupleSchema.add(new Schema.FieldSchema("ModuloResult", DataType.INTEGER));
            return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), tupleSchema, DataType.TUPLE));
        } catch (final FrontendException e) {
        // fall through
        }
    }
    return null;
}

Example 4 with FrontendException

use of org.apache.pig.impl.logicalLayer.FrontendException in project sketches-pig by DataSketches.

the class AexcludeB method outputSchema.

@Override
public Schema outputSchema(final Schema input) {
    if (input != null) {
        try {
            final Schema tupleSchema = new Schema();
            tupleSchema.add(new Schema.FieldSchema("Sketch", DataType.BYTEARRAY));
            return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), tupleSchema, DataType.TUPLE));
        } catch (final FrontendException e) {
        // fall through
        }
    }
    return null;
}

Example 5 with FrontendException

use of org.apache.pig.impl.logicalLayer.FrontendException in project sketches-pig by DataSketches.

the class Intersect method outputSchema.

@Override
public Schema outputSchema(final Schema input) {
    if (input != null) {
        try {
            final Schema tupleSchema = new Schema();
            tupleSchema.add(new Schema.FieldSchema("Sketch", DataType.BYTEARRAY));
            return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), tupleSchema, DataType.TUPLE));
        } catch (final FrontendException e) {
        // fall through
        }
    }
    return null;
}