Java Code Examples for org.apache.pig.ResourceSchema.ResourceFieldSchema#setName()

The following examples show how to use org.apache.pig.ResourceSchema.ResourceFieldSchema#setName() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: AegisthusLoader.java From aegisthus with Apache License 2.0

6 votes

protected ResourceSchema columnSchema() throws IOException {
	ResourceSchema schema = new ResourceSchema();
	List<ResourceFieldSchema> fields = new ArrayList<>();

	fields.add(field("name", DataType.BYTEARRAY));
	fields.add(field("value", DataType.BYTEARRAY));
	fields.add(field("ts", DataType.LONG));
	fields.add(field("status", DataType.CHARARRAY));
	fields.add(field("ttl", DataType.LONG));

	ResourceSchema tuple = new ResourceSchema();
	tuple.setFields(fields.toArray(new ResourceFieldSchema[0]));

	ResourceFieldSchema fs = new ResourceFieldSchema();
	fs.setName("column");
	fs.setType(DataType.TUPLE);

	fs.setSchema(tuple);
	fields.clear();
	fields.add(fs);
	schema.setFields(fields.toArray(new ResourceFieldSchema[0]));

	return schema;
}

Example 2

Source File: SchemaUtil.java From iceberg with Apache License 2.0

5 votes

private static ResourceFieldSchema convert(Types.NestedField field) throws IOException {
  ResourceFieldSchema result = convert(field.type());
  result.setName(field.name());
  result.setDescription(String.format("FieldId: %s", field.fieldId()));

  return result;
}

Example 3

Source File: SchemaUtil.java From iceberg with Apache License 2.0

5 votes

private static ResourceFieldSchema convert(Types.NestedField field) throws IOException {
  ResourceFieldSchema result = convert(field.type());
  result.setName(field.name());
  result.setDescription(format("FieldId: %s", field.fieldId()));

  return result;
}

Example 4

Source File: AvroStorageUtils.java From Cubert with Apache License 2.0

5 votes

/** wrap a pig schema as tuple */
public static ResourceFieldSchema wrapAsTuple(ResourceFieldSchema subFieldSchema) throws IOException {
    ResourceSchema listSchema = new ResourceSchema();
    listSchema.setFields(new ResourceFieldSchema[] { subFieldSchema });

    ResourceFieldSchema tupleWrapper = new ResourceFieldSchema();
    tupleWrapper.setType(DataType.TUPLE);
    tupleWrapper.setName(PIG_TUPLE_WRAPPER);
    tupleWrapper.setSchema(listSchema);

    return tupleWrapper;
}

Example 5

Source File: CqlNativeStorage.java From stratio-cassandra with Apache License 2.0

5 votes

/** schema: (value, value, value) where keys are in the front. */
public ResourceSchema getSchema(String location, Job job) throws IOException
{
    setLocation(location, job);
    CfInfo cfInfo = getCfInfo(loadSignature);
    CfDef cfDef = cfInfo.cfDef;
    // top-level schema, no type
    ResourceSchema schema = new ResourceSchema();

    // get default marshallers and validators
    Map<MarshallerType, AbstractType> marshallers = getDefaultMarshallers(cfDef);
    Map<ByteBuffer, AbstractType> validators = getValidatorMap(cfDef);

    // will contain all fields for this schema
    List<ResourceFieldSchema> allSchemaFields = new ArrayList<ResourceFieldSchema>();

    for (ColumnDef cdef : cfDef.column_metadata)
    {
        ResourceFieldSchema valSchema = new ResourceFieldSchema();
        AbstractType validator = validators.get(cdef.name);
        if (validator == null)
            validator = marshallers.get(MarshallerType.DEFAULT_VALIDATOR);
        valSchema.setName(new String(cdef.getName()));
        valSchema.setType(getPigType(validator));
        allSchemaFields.add(valSchema);
    }

    // top level schema contains everything
    schema.setFields(allSchemaFields.toArray(new ResourceFieldSchema[allSchemaFields.size()]));
    return schema;
}

Example 6

Source File: AvroStorageUtils.java From spork with Apache License 2.0

5 votes

/** wrap a pig schema as tuple */
public static ResourceFieldSchema wrapAsTuple(ResourceFieldSchema subFieldSchema) throws IOException {
    ResourceSchema listSchema = new ResourceSchema();
    listSchema.setFields(new ResourceFieldSchema[] { subFieldSchema });

    ResourceFieldSchema tupleWrapper = new ResourceFieldSchema();
    tupleWrapper.setType(DataType.TUPLE);
    tupleWrapper.setName(PIG_TUPLE_WRAPPER);
    tupleWrapper.setSchema(listSchema);

    return tupleWrapper;
}

Example 7

Source File: AegisthusLoader.java From aegisthus with Apache License 2.0

5 votes

protected ResourceFieldSchema subfield(String name, byte type, ResourceSchema schema) throws IOException {
	ResourceFieldSchema fs = new ResourceFieldSchema();
	fs.setName(name);
	fs.setType(type);
	fs.setSchema(schema);
	return fs;
}

Example 8

Source File: Loader.java From logparser with Apache License 2.0

5 votes

@Override
public ResourceSchema getSchema(String location, Job job) throws IOException {
    ResourceSchema rs = new ResourceSchema();
    List<ResourceFieldSchema> fieldSchemaList = new ArrayList<>();

    for (String fieldName : requestedFields) {
        ResourceFieldSchema rfs = new ResourceFieldSchema();
        rfs.setName(fieldName);
        rfs.setDescription(fieldName);

        if(fieldName.endsWith(".*")) {
            rfs.setType(DataType.MAP);
        } else {
            EnumSet<Casts> casts = theInputFormat.getRecordReader().getCasts(fieldName);
            if (casts != null) {
                if (casts.contains(Casts.LONG)) {
                    rfs.setType(DataType.LONG);
                } else {
                    if (casts.contains(Casts.DOUBLE)) {
                        rfs.setType(DataType.DOUBLE);
                    } else {
                        rfs.setType(DataType.CHARARRAY);
                    }
                }
            } else {
                rfs.setType(DataType.BYTEARRAY);
            }
        }
        fieldSchemaList.add(rfs);
    }

    rs.setFields(fieldSchemaList.toArray(new ResourceFieldSchema[fieldSchemaList.size()]));
    return rs;
}

Example 9

Source File: AvroSchema2Pig.java From spork with Apache License 2.0

4 votes

/**
 * Convert a schema with field name to a pig schema
 */
 private static ResourceFieldSchema inconvert(Schema in, String fieldName, Set<Schema> visitedRecords)
         throws IOException {

    AvroStorageLog.details("InConvert avro schema with field name " + fieldName);

    Schema.Type avroType = in.getType();
    ResourceFieldSchema fieldSchema = new ResourceFieldSchema();
    fieldSchema.setName(fieldName);

    if (avroType.equals(Schema.Type.RECORD)) {

        AvroStorageLog.details("convert to a pig tuple");

        if (visitedRecords.contains(in)) {
            fieldSchema.setType(DataType.BYTEARRAY);
        } else {
            visitedRecords.add(in);
            fieldSchema.setType(DataType.TUPLE);
            ResourceSchema tupleSchema = new ResourceSchema();
            List<Schema.Field> fields = in.getFields();
            ResourceFieldSchema[] childFields = new ResourceFieldSchema[fields.size()];
            int index = 0;
            for (Schema.Field field : fields) {
                childFields[index++] = inconvert(field.schema(), field.name(), visitedRecords);
            }

            tupleSchema.setFields(childFields);
            fieldSchema.setSchema(tupleSchema);
            visitedRecords.remove(in);
        }

    } else if (avroType.equals(Schema.Type.ARRAY)) {

        AvroStorageLog.details("convert array to a pig bag");
        fieldSchema.setType(DataType.BAG);
        Schema elemSchema = in.getElementType();
        ResourceFieldSchema subFieldSchema = inconvert(elemSchema, ARRAY_FIELD, visitedRecords);
        add2BagSchema(fieldSchema, subFieldSchema);

    } else if (avroType.equals(Schema.Type.MAP)) {

        AvroStorageLog.details("convert map to a pig map");
        fieldSchema.setType(DataType.MAP);

    } else if (avroType.equals(Schema.Type.UNION)) {

        if (AvroStorageUtils.isAcceptableUnion(in)) {
            Schema acceptSchema = AvroStorageUtils.getAcceptedType(in);
            ResourceFieldSchema realFieldSchema = inconvert(acceptSchema, null, visitedRecords);
            fieldSchema.setType(realFieldSchema.getType());
            fieldSchema.setSchema(realFieldSchema.getSchema());
        } else
            throw new IOException("Do not support generic union:" + in);

    } else if (avroType.equals(Schema.Type.FIXED)) {
         fieldSchema.setType(DataType.BYTEARRAY);
    } else if (avroType.equals(Schema.Type.BOOLEAN)) {
        fieldSchema.setType(DataType.BOOLEAN);
    } else if (avroType.equals(Schema.Type.BYTES)) {
        fieldSchema.setType(DataType.BYTEARRAY);
    } else if (avroType.equals(Schema.Type.DOUBLE)) {
        fieldSchema.setType(DataType.DOUBLE);
    } else if (avroType.equals(Schema.Type.ENUM)) {
        fieldSchema.setType(DataType.CHARARRAY);
    } else if (avroType.equals(Schema.Type.FLOAT)) {
        fieldSchema.setType(DataType.FLOAT);
    } else if (avroType.equals(Schema.Type.INT)) {
        fieldSchema.setType(DataType.INTEGER);
    } else if (avroType.equals(Schema.Type.LONG)) {
        fieldSchema.setType(DataType.LONG);
    } else if (avroType.equals(Schema.Type.STRING)) {
        fieldSchema.setType(DataType.CHARARRAY);
    } else if (avroType.equals(Schema.Type.NULL)) {
        // value of NULL is always NULL
        fieldSchema.setType(DataType.INTEGER);
    } else {
        throw new IOException("Unsupported avro type:" + avroType);
    }
    return fieldSchema;
}

Example 10

Source File: AegisthusLoader.java From aegisthus with Apache License 2.0

4 votes

protected ResourceFieldSchema field(String name, byte type) {
	ResourceFieldSchema fs = new ResourceFieldSchema();
	fs.setName(name);
	fs.setType(type);
	return fs;
}