Examples with ArrayType org.apache.carbondata.core.metadata.datatype.ArrayType used on opensource projects

Example 1 with ArrayType

use of org.apache.carbondata.core.metadata.datatype.ArrayType in project carbondata by apache.

the class CSVCarbonWriterTest method testWritingAndReadingArrayStruct.

@Test
public void testWritingAndReadingArrayStruct() throws IOException {
    String path = "./testWriteFilesArrayStruct";
    FileUtils.deleteDirectory(new File(path));
    Field[] fields = new Field[4];
    fields[0] = new Field("id", DataTypes.STRING);
    fields[1] = new Field("source", DataTypes.STRING);
    fields[2] = new Field("usage", DataTypes.STRING);
    List<StructField> structFieldsList = new ArrayList<>();
    structFieldsList.add(new StructField("name", DataTypes.STRING));
    structFieldsList.add(new StructField("type", DataTypes.STRING));
    structFieldsList.add(new StructField("creation-time", DataTypes.STRING));
    structFieldsList.add(new StructField("property", DataTypes.STRING));
    StructField structTypeByList = new StructField("annotation", DataTypes.createStructType(structFieldsList), structFieldsList);
    List<StructField> list = new ArrayList<>();
    list.add(structTypeByList);
    Field arrayType = new Field("annotations", "array", list);
    fields[3] = arrayType;
    try {
        CarbonWriterBuilder builder = CarbonWriter.builder().taskNo(5).outputPath(path);
        CarbonWriter writer = builder.withCsvInput(new Schema(fields)).writtenBy("CSVCarbonWriterTest").build();
        for (int i = 0; i < 15; i++) {
            String[] row = new String[] { "robot" + (i % 10), String.valueOf(i), i + "." + i, "sunflowers" + (i % 10) + "\002" + "modelarts/image_classification" + "\002" + "2019-03-30 17:22:31" + "\002" + "{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}" + "\001" + "roses" + (i % 10) + "\002" + "modelarts/image_classification" + "\002" + "2019-03-30 17:22:32" + "\002" + "{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}" };
            writer.write(row);
        }
        writer.close();
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail();
    }
    Schema schema = CarbonSchemaReader.readSchema(path).asOriginOrder();
    assert (4 == schema.getFieldsLength());
    Field[] fields1 = schema.getFields();
    boolean flag = false;
    for (int i = 0; i < fields1.length; i++) {
        if (DataTypes.isArrayType(fields1[i].getDataType())) {
            ArrayType arrayType1 = (ArrayType) fields1[i].getDataType();
            assert ("annotations.annotation".equalsIgnoreCase(arrayType1.getElementName()));
            assert (DataTypes.isStructType(fields1[i].getChildren().get(0).getDataType()));
            assert (4 == (((StructType) fields1[i].getChildren().get(0).getDataType()).getFields()).size());
            flag = true;
        }
    }
    assert (flag);
    // Read again
    CarbonReader reader = null;
    try {
        reader = CarbonReader.builder(path).projection(new String[] { "id", "source", "usage", "annotations" }).build();
        int i = 0;
        while (reader.hasNext()) {
            Object[] row = (Object[]) reader.readNextRow();
            assert (4 == row.length);
            assert (((String) row[0]).contains("robot"));
            int value = Integer.valueOf((String) row[1]);
            Float value2 = Float.valueOf((String) row[2]);
            assert (value > -1 || value < 15);
            assert (value2 > -1 || value2 < 15);
            Object[] annotations = (Object[]) row[3];
            for (int j = 0; j < annotations.length; j++) {
                Object[] annotation = (Object[]) annotations[j];
                assert (((String) annotation[0]).contains("sunflowers") || ((String) annotation[0]).contains("roses"));
                assert (((String) annotation[1]).contains("modelarts/image_classification"));
                assert (((String) annotation[2]).contains("2019-03-30 17:22:3"));
                assert (((String) annotation[3]).contains("{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}"));
                Object[] annotation1 = readObjects(annotations, j);
                assert (((String) annotation1[0]).contains("sunflowers") || ((String) annotation1[0]).contains("roses"));
                assert (((String) annotation1[1]).contains("modelarts/image_classification"));
                assert (((String) annotation1[2]).contains("2019-03-30 17:22:3"));
                assert (((String) annotation1[3]).contains("{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}"));
            }
            i++;
        }
        assert (15 == i);
        reader.close();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        FileUtils.deleteDirectory(new File(path));
    }
}

Example 2 with ArrayType

use of org.apache.carbondata.core.metadata.datatype.ArrayType in project carbondata by apache.

the class CSVCarbonWriterTest method testWritingAndReadingArrayString.

@Test
public void testWritingAndReadingArrayString() throws IOException {
    String path = "./testWriteFilesArrayString";
    FileUtils.deleteDirectory(new File(path));
    Field[] fields = new Field[4];
    fields[0] = new Field("id", DataTypes.STRING);
    fields[1] = new Field("source", DataTypes.STRING);
    fields[2] = new Field("usage", DataTypes.STRING);
    StructField[] stringFields = new StructField[1];
    stringFields[0] = new StructField("stringField", DataTypes.STRING);
    Field arrayType = new Field("annotations", "array", Arrays.asList(stringFields));
    fields[3] = arrayType;
    try {
        CarbonWriterBuilder builder = CarbonWriter.builder().taskNo(5).outputPath(path);
        CarbonWriter writer = builder.withCsvInput(new Schema(fields)).writtenBy("CSVCarbonWriterTest").build();
        for (int i = 0; i < 15; i++) {
            String[] row = new String[] { "robot" + (i % 10), String.valueOf(i), i + "." + i, "sunflowers" + (i % 10) + "\002" + "modelarts/image_classification" + "\002" + "2019-03-30 17:22:31" + "\002" + "{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}" + "\001" + "roses" + (i % 10) + "\002" + "modelarts/image_classification" + "\002" + "2019-03-30 17:22:32" + "\002" + "{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}" };
            writer.write(row);
        }
        writer.close();
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail();
    }
    Schema schema = CarbonSchemaReader.readSchema(path).asOriginOrder();
    assert (4 == schema.getFieldsLength());
    Field[] fields1 = schema.getFields();
    boolean flag = false;
    for (int i = 0; i < fields1.length; i++) {
        if (DataTypes.isArrayType(fields1[i].getDataType())) {
            ArrayType arrayType1 = (ArrayType) fields1[i].getDataType();
            assert ("annotations.stringField".equalsIgnoreCase(arrayType1.getElementName()));
            assert (DataTypes.STRING.equals(fields1[i].getChildren().get(0).getDataType()));
            flag = true;
        }
    }
    assert (flag);
    // Read again
    CarbonReader reader = null;
    try {
        reader = CarbonReader.builder(path).projection(new String[] { "id", "source", "usage", "annotations" }).build();
        int i = 0;
        while (reader.hasNext()) {
            Object[] row = (Object[]) reader.readNextRow();
            assert (4 == row.length);
            assert (((String) row[0]).contains("robot"));
            int value = Integer.valueOf((String) row[1]);
            Float value2 = Float.valueOf((String) row[2]);
            assert (value > -1 || value < 15);
            assert (value2 > -1 || value2 < 15);
            Object[] annotations = (Object[]) row[3];
            for (int j = 0; j < annotations.length; j++) {
                assert (((String) annotations[j]).contains("\u0002modelarts/image_classification\u00022019-03-30 17:22:31\u0002{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}") || ((String) annotations[j]).contains("\u0002modelarts/image_classification\u00022019-03-30 17:22:32\u0002{\"@modelarts:start_index\":0,\"@modelarts:end_index\":5}"));
            }
            i++;
        }
        assert (15 == i);
        reader.close();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        FileUtils.deleteDirectory(new File(path));
    }
}

Example 3 with ArrayType

use of org.apache.carbondata.core.metadata.datatype.ArrayType in project carbondata by apache.

the class ArrowUtils method toArrowField.

public static org.apache.arrow.vector.types.pojo.Field toArrowField(String name, DataType dataType, String timeZoneId) {
    if (dataType instanceof ArrayType) {
        // instance of check is for findbugs, instead of datatypes check
        FieldType fieldType = new FieldType(true, ArrowType.List.INSTANCE, null);
        List<org.apache.arrow.vector.types.pojo.Field> structFields = new ArrayList<>();
        DataType elementType = ((ArrayType) dataType).getElementType();
        structFields.add(toArrowField("element", elementType, timeZoneId));
        return new org.apache.arrow.vector.types.pojo.Field(name, fieldType, structFields);
    } else if (dataType instanceof StructType) {
        // instance of check is for findbugs, instead of datatypes check
        StructType dataType1 = (StructType) dataType;
        FieldType fieldType = new FieldType(true, ArrowType.Struct.INSTANCE, null);
        List<StructField> fields = dataType1.getFields();
        List<org.apache.arrow.vector.types.pojo.Field> structFields = new ArrayList<>();
        for (int i = 0; i < fields.size(); i++) {
            structFields.add(toArrowField(fields.get(i).getFieldName(), fields.get(i).getDataType(), timeZoneId));
        }
        return new org.apache.arrow.vector.types.pojo.Field(name, fieldType, structFields);
    } else {
        FieldType fieldType = new FieldType(true, toArrowType(dataType, timeZoneId), null);
        return new org.apache.arrow.vector.types.pojo.Field(name, fieldType, new ArrayList<org.apache.arrow.vector.types.pojo.Field>());
    }
}