Examples with Serializer org.apache.hadoop.hive.serde2.Serializer used on opensource projects

Example 1 with Serializer

use of org.apache.hadoop.hive.serde2.Serializer in project hive by apache.

the class CreateSequenceFile method main.

public static void main(String[] args) throws Exception {
    // Read parameters
    int lines = 10;
    List<String> extraArgs = new ArrayList<String>();
    for (int ai = 0; ai < args.length; ai++) {
        if (args[ai].equals("-line") && ai + 1 < args.length) {
            lines = Integer.parseInt(args[ai + 1]);
            ai++;
        } else {
            extraArgs.add(args[ai]);
        }
    }
    if (extraArgs.size() != 1) {
        usage();
    }
    JobConf conf = new JobConf(CreateSequenceFile.class);
    ThriftSerializer serializer = new ThriftSerializer();
    // Open files
    SequenceFile.Writer writer = new SequenceFile.Writer(FileSystem.get(conf), conf, new Path(extraArgs.get(0)), BytesWritable.class, BytesWritable.class);
    // write to file
    BytesWritable key = new BytesWritable();
    Random rand = new Random(20081215);
    for (int i = 0; i < lines; i++) {
        ArrayList<Integer> alist = new ArrayList<Integer>();
        alist.add(i);
        alist.add(i * 2);
        alist.add(i * 3);
        ArrayList<String> slist = new ArrayList<String>();
        slist.add("" + i * 10);
        slist.add("" + i * 100);
        slist.add("" + i * 1000);
        ArrayList<IntString> islist = new ArrayList<IntString>();
        islist.add(new IntString(i * i, "" + i * i * i, i));
        HashMap<String, String> hash = new HashMap<String, String>();
        hash.put("key_" + i, "value_" + i);
        Map<String, Map<String, Map<String, PropValueUnion>>> unionMap = new HashMap<String, Map<String, Map<String, PropValueUnion>>>();
        Map<String, Map<String, PropValueUnion>> erMap = new HashMap<String, Map<String, PropValueUnion>>();
        Map<String, PropValueUnion> attrMap = new HashMap<String, PropValueUnion>();
        erMap.put("erVal" + i, attrMap);
        attrMap.put("value_" + i, PropValueUnion.doubleValue(1.0));
        unionMap.put("key_" + i, erMap);
        Complex complex = new Complex(rand.nextInt(), "record_" + (new Integer(i)).toString(), alist, slist, islist, hash, unionMap, PropValueUnion.stringValue("test" + i), PropValueUnion.unionMStringString(hash), PropValueUnion.lString(slist));
        Writable value = serializer.serialize(complex);
        writer.append(key, value);
    }
    // Add an all-null record
    Complex complex = new Complex(0, null, null, null, null, null, null, null, null, null);
    Writable value = serializer.serialize(complex);
    writer.append(key, value);
    // Close files
    writer.close();
}

Example 2 with Serializer

use of org.apache.hadoop.hive.serde2.Serializer in project hive by apache.

the class TestAccumuloRowSerializer method testBufferResetBeforeUse.

@Test
public void testBufferResetBeforeUse() throws IOException {
    ByteStream.Output output = new ByteStream.Output();
    PrimitiveObjectInspector fieldObjectInspector = Mockito.mock(StringObjectInspector.class);
    ColumnMapping mapping = Mockito.mock(ColumnMapping.class);
    // Write some garbage to the buffer that should be erased
    output.write("foobar".getBytes());
    // Stub out the serializer
    AccumuloRowSerializer serializer = Mockito.mock(AccumuloRowSerializer.class);
    String object = "hello";
    Mockito.when(serializer.getSerializedValue(Mockito.any(ObjectInspector.class), Mockito.any(), Mockito.any(ByteStream.Output.class), Mockito.any(ColumnMapping.class))).thenCallRealMethod();
    Mockito.when(fieldObjectInspector.getCategory()).thenReturn(ObjectInspector.Category.PRIMITIVE);
    Mockito.when(fieldObjectInspector.getPrimitiveCategory()).thenReturn(PrimitiveCategory.STRING);
    Mockito.when(fieldObjectInspector.getPrimitiveWritableObject(Mockito.any(Object.class))).thenReturn(new Text(object));
    Mockito.when(mapping.getEncoding()).thenReturn(ColumnEncoding.STRING);
    // Invoke the method
    serializer.getSerializedValue(fieldObjectInspector, object, output, mapping);
    // Verify the buffer was reset (real output doesn't happen because it was mocked)
    Assert.assertEquals(0, output.size());
}

Example 3 with Serializer

use of org.apache.hadoop.hive.serde2.Serializer in project hive by apache.

the class TestAccumuloRowSerializer method testBinarySerialization.

@Test
public void testBinarySerialization() throws IOException, SerDeException {
    List<String> columns = Arrays.asList("row", "cq1", "cq2", "cq3");
    List<TypeInfo> types = Arrays.<TypeInfo>asList(TypeInfoFactory.stringTypeInfo, TypeInfoFactory.intTypeInfo, TypeInfoFactory.intTypeInfo, TypeInfoFactory.stringTypeInfo);
    List<String> typeNames = new ArrayList<String>(types.size());
    for (TypeInfo type : types) {
        typeNames.add(type.getTypeName());
    }
    Properties tableProperties = new Properties();
    tableProperties.setProperty(AccumuloSerDeParameters.COLUMN_MAPPINGS, ":rowid,cf:cq1#b,cf:cq2#b,cf:cq3");
    tableProperties.setProperty(serdeConstants.FIELD_DELIM, " ");
    tableProperties.setProperty(serdeConstants.LIST_COLUMNS, Joiner.on(',').join(columns));
    tableProperties.setProperty(serdeConstants.LIST_COLUMN_TYPES, Joiner.on(',').join(typeNames));
    AccumuloSerDeParameters accumuloSerDeParams = new AccumuloSerDeParameters(new Configuration(), tableProperties, AccumuloSerDe.class.getSimpleName());
    LazySerDeParameters serDeParams = accumuloSerDeParams.getSerDeParameters();
    LazySimpleStructObjectInspector oi = (LazySimpleStructObjectInspector) LazyFactory.createLazyStructInspector(columns, types, serDeParams.getSeparators(), serDeParams.getNullSequence(), serDeParams.isLastColumnTakesRest(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    AccumuloRowSerializer serializer = new AccumuloRowSerializer(0, serDeParams, accumuloSerDeParams.getColumnMappings(), new ColumnVisibility(), accumuloSerDeParams.getRowIdFactory());
    // Create the LazyStruct from the LazyStruct...Inspector
    LazyStruct obj = (LazyStruct) LazyFactory.createLazyObject(oi);
    ByteArrayRef byteRef = new ByteArrayRef();
    byteRef.setData(new byte[] { 'r', 'o', 'w', '1', ' ', '1', '0', ' ', '2', '0', ' ', 'v', 'a', 'l', 'u', 'e' });
    obj.init(byteRef, 0, byteRef.getData().length);
    Mutation m = (Mutation) serializer.serialize(obj, oi);
    Assert.assertArrayEquals("row1".getBytes(), m.getRow());
    List<ColumnUpdate> updates = m.getUpdates();
    Assert.assertEquals(3, updates.size());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(baos);
    ColumnUpdate update = updates.get(0);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq1", new String(update.getColumnQualifier()));
    out.writeInt(10);
    Assert.assertArrayEquals(baos.toByteArray(), update.getValue());
    update = updates.get(1);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq2", new String(update.getColumnQualifier()));
    baos.reset();
    out.writeInt(20);
    Assert.assertArrayEquals(baos.toByteArray(), update.getValue());
    update = updates.get(2);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq3", new String(update.getColumnQualifier()));
    Assert.assertEquals("value", new String(update.getValue()));
}

Example 4 with Serializer

use of org.apache.hadoop.hive.serde2.Serializer in project hive by apache.

the class TestAccumuloSerDe method testStructOfMapSerialization.

@Test
public void testStructOfMapSerialization() throws IOException, SerDeException {
    List<String> columns = Arrays.asList("row", "col");
    List<String> structColNames = Arrays.asList("map1", "map2");
    TypeInfo mapTypeInfo = TypeInfoFactory.getMapTypeInfo(TypeInfoFactory.stringTypeInfo, TypeInfoFactory.stringTypeInfo);
    // struct<map1:map<string,string>,map2:map<string,string>>,string
    List<TypeInfo> types = Arrays.<TypeInfo>asList(TypeInfoFactory.getStructTypeInfo(structColNames, Arrays.asList(mapTypeInfo, mapTypeInfo)), TypeInfoFactory.stringTypeInfo);
    Properties tableProperties = new Properties();
    tableProperties.setProperty(AccumuloSerDeParameters.COLUMN_MAPPINGS, ":rowid,cf:cq");
    // Use the default separators [0, 1, 2, 3, ..., 7]
    tableProperties.setProperty(serdeConstants.LIST_COLUMNS, Joiner.on(',').join(columns));
    tableProperties.setProperty(serdeConstants.LIST_COLUMN_TYPES, Joiner.on(',').join(types));
    AccumuloSerDeParameters accumuloSerDeParams = new AccumuloSerDeParameters(new Configuration(), tableProperties, AccumuloSerDe.class.getSimpleName());
    LazySerDeParameters serDeParams = accumuloSerDeParams.getSerDeParameters();
    byte[] seps = serDeParams.getSeparators();
    // struct<map<k:v,k:v>_map<k:v,k:v>>>
    TypeInfo stringTypeInfo = TypeInfoFactory.getPrimitiveTypeInfo(serdeConstants.STRING_TYPE_NAME);
    LazyStringObjectInspector stringOI = (LazyStringObjectInspector) LazyFactory.createLazyObjectInspector(stringTypeInfo, new byte[] { 0 }, 0, serDeParams.getNullSequence(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    LazyMapObjectInspector mapOI = LazyObjectInspectorFactory.getLazySimpleMapObjectInspector(stringOI, stringOI, seps[3], seps[4], serDeParams.getNullSequence(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    LazySimpleStructObjectInspector rowStructOI = (LazySimpleStructObjectInspector) LazyObjectInspectorFactory.getLazySimpleStructObjectInspector(structColNames, Arrays.<ObjectInspector>asList(mapOI, mapOI), (byte) seps[2], serDeParams.getNullSequence(), serDeParams.isLastColumnTakesRest(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    LazySimpleStructObjectInspector structOI = (LazySimpleStructObjectInspector) LazyObjectInspectorFactory.getLazySimpleStructObjectInspector(columns, Arrays.asList(rowStructOI, stringOI), seps[1], serDeParams.getNullSequence(), serDeParams.isLastColumnTakesRest(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    AccumuloRowSerializer serializer = new AccumuloRowSerializer(0, serDeParams, accumuloSerDeParams.getColumnMappings(), new ColumnVisibility(), accumuloSerDeParams.getRowIdFactory());
    Map<String, String> map1 = new HashMap<String, String>(), map2 = new HashMap<String, String>();
    map1.put("key10", "value10");
    map1.put("key11", "value11");
    map2.put("key20", "value20");
    map2.put("key21", "value21");
    ByteArrayRef byteRef = new ByteArrayRef();
    // Default separators are 1-indexed (instead of 0-indexed), thus the separator at offset 1 is
    // (byte) 2
    // The separator for the hive row is \x02, for the row Id struct, \x03, and the maps \x04 and
    // \x05
    String accumuloRow = "key10\5value10\4key11\5value11\3key20\5value20\4key21\5value21";
    LazyStruct entireStruct = (LazyStruct) LazyFactory.createLazyObject(structOI);
    byteRef.setData((accumuloRow + "\2foo").getBytes());
    entireStruct.init(byteRef, 0, byteRef.getData().length);
    Mutation m = serializer.serialize(entireStruct, structOI);
    Assert.assertArrayEquals(accumuloRow.getBytes(), m.getRow());
    Assert.assertEquals(1, m.getUpdates().size());
    ColumnUpdate update = m.getUpdates().get(0);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq", new String(update.getColumnQualifier()));
    Assert.assertEquals("foo", new String(update.getValue()));
    AccumuloHiveRow haRow = new AccumuloHiveRow(new String(m.getRow()));
    haRow.add("cf", "cq", "foo".getBytes());
    LazyAccumuloRow lazyAccumuloRow = new LazyAccumuloRow(structOI);
    lazyAccumuloRow.init(haRow, accumuloSerDeParams.getColumnMappings(), accumuloSerDeParams.getRowIdFactory());
    List<Object> objects = lazyAccumuloRow.getFieldsAsList();
    Assert.assertEquals(2, objects.size());
    Assert.assertEquals("foo", objects.get(1).toString());
    LazyStruct rowStruct = (LazyStruct) objects.get(0);
    List<Object> rowObjects = rowStruct.getFieldsAsList();
    Assert.assertEquals(2, rowObjects.size());
    LazyMap rowMap = (LazyMap) rowObjects.get(0);
    Map<?, ?> actualMap = rowMap.getMap();
    System.out.println("Actual map 1: " + actualMap);
    Map<String, String> actualStringMap = new HashMap<String, String>();
    for (Entry<?, ?> entry : actualMap.entrySet()) {
        actualStringMap.put(entry.getKey().toString(), entry.getValue().toString());
    }
    Assert.assertEquals(map1, actualStringMap);
    rowMap = (LazyMap) rowObjects.get(1);
    actualMap = rowMap.getMap();
    System.out.println("Actual map 2: " + actualMap);
    actualStringMap = new HashMap<String, String>();
    for (Entry<?, ?> entry : actualMap.entrySet()) {
        actualStringMap.put(entry.getKey().toString(), entry.getValue().toString());
    }
    Assert.assertEquals(map2, actualStringMap);
}

Example 5 with Serializer

use of org.apache.hadoop.hive.serde2.Serializer in project hive by apache.

the class TestAccumuloRowSerializer method testMapSerialization.

@Test
public void testMapSerialization() throws IOException, SerDeException {
    List<String> columns = Arrays.asList("row", "col");
    List<TypeInfo> types = Arrays.<TypeInfo>asList(TypeInfoFactory.stringTypeInfo, TypeInfoFactory.getMapTypeInfo(TypeInfoFactory.stringTypeInfo, TypeInfoFactory.stringTypeInfo));
    List<String> typeNames = new ArrayList<String>(types.size());
    for (TypeInfo type : types) {
        typeNames.add(type.getTypeName());
    }
    Properties tableProperties = new Properties();
    tableProperties.setProperty(AccumuloSerDeParameters.COLUMN_MAPPINGS, ":rowid,cf:*");
    tableProperties.setProperty(serdeConstants.FIELD_DELIM, " ");
    tableProperties.setProperty(serdeConstants.COLLECTION_DELIM, ",");
    tableProperties.setProperty(serdeConstants.MAPKEY_DELIM, ":");
    tableProperties.setProperty(serdeConstants.LIST_COLUMNS, Joiner.on(',').join(columns));
    tableProperties.setProperty(serdeConstants.LIST_COLUMN_TYPES, Joiner.on(',').join(typeNames));
    AccumuloSerDeParameters accumuloSerDeParams = new AccumuloSerDeParameters(new Configuration(), tableProperties, AccumuloSerDe.class.getSimpleName());
    LazySerDeParameters serDeParams = accumuloSerDeParams.getSerDeParameters();
    TypeInfo stringTypeInfo = TypeInfoFactory.getPrimitiveTypeInfo(serdeConstants.STRING_TYPE_NAME);
    LazyStringObjectInspector stringOI = (LazyStringObjectInspector) LazyFactory.createLazyObjectInspector(stringTypeInfo, new byte[] { 0 }, 0, serDeParams.getNullSequence(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    LazyMapObjectInspector mapOI = LazyObjectInspectorFactory.getLazySimpleMapObjectInspector(stringOI, stringOI, (byte) ',', (byte) ':', serDeParams.getNullSequence(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    LazySimpleStructObjectInspector structOI = (LazySimpleStructObjectInspector) LazyObjectInspectorFactory.getLazySimpleStructObjectInspector(columns, Arrays.asList(stringOI, mapOI), (byte) ' ', serDeParams.getNullSequence(), serDeParams.isLastColumnTakesRest(), serDeParams.isEscaped(), serDeParams.getEscapeChar());
    AccumuloRowSerializer serializer = new AccumuloRowSerializer(0, serDeParams, accumuloSerDeParams.getColumnMappings(), new ColumnVisibility(), accumuloSerDeParams.getRowIdFactory());
    // Create the LazyStruct from the LazyStruct...Inspector
    LazyStruct obj = (LazyStruct) LazyFactory.createLazyObject(structOI);
    ByteArrayRef byteRef = new ByteArrayRef();
    byteRef.setData("row1 cq1:10,cq2:20,cq3:value".getBytes());
    obj.init(byteRef, 0, byteRef.getData().length);
    Mutation m = (Mutation) serializer.serialize(obj, structOI);
    Assert.assertArrayEquals("row1".getBytes(), m.getRow());
    List<ColumnUpdate> updates = m.getUpdates();
    Assert.assertEquals(3, updates.size());
    ColumnUpdate update = updates.get(0);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq1", new String(update.getColumnQualifier()));
    Assert.assertEquals("10", new String(update.getValue()));
    update = updates.get(1);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq2", new String(update.getColumnQualifier()));
    Assert.assertEquals("20", new String(update.getValue()));
    update = updates.get(2);
    Assert.assertEquals("cf", new String(update.getColumnFamily()));
    Assert.assertEquals("cq3", new String(update.getColumnQualifier()));
    Assert.assertEquals("value", new String(update.getValue()));
}