Examples with StandardUnion org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.StandardUnion used on opensource projects

Example 1 with StandardUnion

use of org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.StandardUnion in project hive by apache.

the class AvroLazyObjectInspector method toLazyUnionObject.

/**
   * Convert the given object to a lazy object using the given {@link ObjectInspector}
   *
   * @param obj Object to be converted to a {@link LazyObject}
   * @param oi ObjectInspector used for the conversion
   * @return the created {@link LazyObject lazy object}
   * */
private Object toLazyUnionObject(Object obj, ObjectInspector objectInspector) {
    if (obj == null) {
        return null;
    }
    if (!(objectInspector instanceof LazyUnionObjectInspector)) {
        throw new IllegalArgumentException("Invalid objectinspector found. Expected LazyUnionObjectInspector, Found " + objectInspector.getClass());
    }
    StandardUnion standardUnion = (StandardUnion) obj;
    LazyUnionObjectInspector lazyUnionOI = (LazyUnionObjectInspector) objectInspector;
    // Grab the tag and the field
    byte tag = standardUnion.getTag();
    Object field = standardUnion.getObject();
    ObjectInspector fieldOI = lazyUnionOI.getObjectInspectors().get(tag);
    // convert to lazy object
    Object convertedObj = null;
    if (field != null) {
        convertedObj = toLazyObject(field, fieldOI);
    }
    if (convertedObj == null) {
        return null;
    }
    return new LazyUnion(lazyUnionOI, tag, convertedObj);
}

Example 2 with StandardUnion

use of org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.StandardUnion in project hive by apache.

the class BinarySortableSerDe method deserialize.

static Object deserialize(InputByteBuffer buffer, TypeInfo type, boolean invert, byte nullMarker, byte notNullMarker, Object reuse) throws IOException {
    // Is this field a null?
    byte isNull = buffer.read(invert);
    if (isNull == nullMarker) {
        return null;
    }
    assert (isNull == notNullMarker);
    switch(type.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveTypeInfo ptype = (PrimitiveTypeInfo) type;
                switch(ptype.getPrimitiveCategory()) {
                    case VOID:
                        {
                            return null;
                        }
                    case BOOLEAN:
                        {
                            BooleanWritable r = reuse == null ? new BooleanWritable() : (BooleanWritable) reuse;
                            byte b = buffer.read(invert);
                            assert (b == 1 || b == 2);
                            r.set(b == 2);
                            return r;
                        }
                    case BYTE:
                        {
                            ByteWritable r = reuse == null ? new ByteWritable() : (ByteWritable) reuse;
                            r.set((byte) (buffer.read(invert) ^ 0x80));
                            return r;
                        }
                    case SHORT:
                        {
                            ShortWritable r = reuse == null ? new ShortWritable() : (ShortWritable) reuse;
                            int v = buffer.read(invert) ^ 0x80;
                            v = (v << 8) + (buffer.read(invert) & 0xff);
                            r.set((short) v);
                            return r;
                        }
                    case INT:
                        {
                            IntWritable r = reuse == null ? new IntWritable() : (IntWritable) reuse;
                            r.set(deserializeInt(buffer, invert));
                            return r;
                        }
                    case LONG:
                        {
                            LongWritable r = reuse == null ? new LongWritable() : (LongWritable) reuse;
                            r.set(deserializeLong(buffer, invert));
                            return r;
                        }
                    case FLOAT:
                        {
                            FloatWritable r = reuse == null ? new FloatWritable() : (FloatWritable) reuse;
                            int v = 0;
                            for (int i = 0; i < 4; i++) {
                                v = (v << 8) + (buffer.read(invert) & 0xff);
                            }
                            if ((v & (1 << 31)) == 0) {
                                // negative number, flip all bits
                                v = ~v;
                            } else {
                                // positive number, flip the first bit
                                v = v ^ (1 << 31);
                            }
                            r.set(Float.intBitsToFloat(v));
                            return r;
                        }
                    case DOUBLE:
                        {
                            DoubleWritable r = reuse == null ? new DoubleWritable() : (DoubleWritable) reuse;
                            long v = 0;
                            for (int i = 0; i < 8; i++) {
                                v = (v << 8) + (buffer.read(invert) & 0xff);
                            }
                            if ((v & (1L << 63)) == 0) {
                                // negative number, flip all bits
                                v = ~v;
                            } else {
                                // positive number, flip the first bit
                                v = v ^ (1L << 63);
                            }
                            r.set(Double.longBitsToDouble(v));
                            return r;
                        }
                    case STRING:
                        {
                            Text r = reuse == null ? new Text() : (Text) reuse;
                            return deserializeText(buffer, invert, r);
                        }
                    case CHAR:
                        {
                            HiveCharWritable r = reuse == null ? new HiveCharWritable() : (HiveCharWritable) reuse;
                            // Use internal text member to read value
                            deserializeText(buffer, invert, r.getTextValue());
                            r.enforceMaxLength(getCharacterMaxLength(type));
                            return r;
                        }
                    case VARCHAR:
                        {
                            HiveVarcharWritable r = reuse == null ? new HiveVarcharWritable() : (HiveVarcharWritable) reuse;
                            // Use HiveVarchar's internal Text member to read the value.
                            deserializeText(buffer, invert, r.getTextValue());
                            // If we cache helper data for deserialization we could avoid having
                            // to call getVarcharMaxLength() on every deserialize call.
                            r.enforceMaxLength(getCharacterMaxLength(type));
                            return r;
                        }
                    case BINARY:
                        {
                            BytesWritable bw = new BytesWritable();
                            // Get the actual length first
                            int start = buffer.tell();
                            int length = 0;
                            do {
                                byte b = buffer.read(invert);
                                if (b == 0) {
                                    // end of string
                                    break;
                                }
                                if (b == 1) {
                                    // the last char is an escape char. read the actual char
                                    buffer.read(invert);
                                }
                                length++;
                            } while (true);
                            if (length == buffer.tell() - start) {
                                // No escaping happened, so we are already done.
                                bw.set(buffer.getData(), start, length);
                            } else {
                                // Escaping happened, we need to copy byte-by-byte.
                                // 1. Set the length first.
                                bw.set(buffer.getData(), start, length);
                                // 2. Reset the pointer.
                                buffer.seek(start);
                                // 3. Copy the data.
                                byte[] rdata = bw.getBytes();
                                for (int i = 0; i < length; i++) {
                                    byte b = buffer.read(invert);
                                    if (b == 1) {
                                        // The last char is an escape char, read the actual char.
                                        // The serialization format escape \0 to \1, and \1 to \2,
                                        // to make sure the string is null-terminated.
                                        b = (byte) (buffer.read(invert) - 1);
                                    }
                                    rdata[i] = b;
                                }
                                // 4. Read the null terminator.
                                byte b = buffer.read(invert);
                                assert (b == 0);
                            }
                            return bw;
                        }
                    case DATE:
                        {
                            DateWritable d = reuse == null ? new DateWritable() : (DateWritable) reuse;
                            d.set(deserializeInt(buffer, invert));
                            return d;
                        }
                    case TIMESTAMP:
                        TimestampWritable t = (reuse == null ? new TimestampWritable() : (TimestampWritable) reuse);
                        byte[] bytes = new byte[TimestampWritable.BINARY_SORTABLE_LENGTH];
                        for (int i = 0; i < bytes.length; i++) {
                            bytes[i] = buffer.read(invert);
                        }
                        t.setBinarySortable(bytes, 0);
                        return t;
                    case INTERVAL_YEAR_MONTH:
                        {
                            HiveIntervalYearMonthWritable i = reuse == null ? new HiveIntervalYearMonthWritable() : (HiveIntervalYearMonthWritable) reuse;
                            i.set(deserializeInt(buffer, invert));
                            return i;
                        }
                    case INTERVAL_DAY_TIME:
                        {
                            HiveIntervalDayTimeWritable i = reuse == null ? new HiveIntervalDayTimeWritable() : (HiveIntervalDayTimeWritable) reuse;
                            long totalSecs = deserializeLong(buffer, invert);
                            int nanos = deserializeInt(buffer, invert);
                            i.set(totalSecs, nanos);
                            return i;
                        }
                    case DECIMAL:
                        {
                            // See serialization of decimal for explanation (below)
                            HiveDecimalWritable bdw = (reuse == null ? new HiveDecimalWritable() : (HiveDecimalWritable) reuse);
                            int b = buffer.read(invert) - 1;
                            assert (b == 1 || b == -1 || b == 0);
                            boolean positive = b != -1;
                            int factor = buffer.read(invert) ^ 0x80;
                            for (int i = 0; i < 3; i++) {
                                factor = (factor << 8) + (buffer.read(invert) & 0xff);
                            }
                            if (!positive) {
                                factor = -factor;
                            }
                            int start = buffer.tell();
                            int length = 0;
                            do {
                                b = buffer.read(positive ? invert : !invert);
                                assert (b != 1);
                                if (b == 0) {
                                    // end of digits
                                    break;
                                }
                                length++;
                            } while (true);
                            final byte[] decimalBuffer = new byte[length];
                            buffer.seek(start);
                            for (int i = 0; i < length; ++i) {
                                decimalBuffer[i] = buffer.read(positive ? invert : !invert);
                            }
                            // read the null byte again
                            buffer.read(positive ? invert : !invert);
                            String digits = new String(decimalBuffer, 0, length, decimalCharSet);
                            BigInteger bi = new BigInteger(digits);
                            HiveDecimal bd = HiveDecimal.create(bi).scaleByPowerOfTen(factor - length);
                            if (!positive) {
                                bd = bd.negate();
                            }
                            bdw.set(bd);
                            return bdw;
                        }
                    default:
                        {
                            throw new RuntimeException("Unrecognized type: " + ptype.getPrimitiveCategory());
                        }
                }
            }
        case LIST:
            {
                ListTypeInfo ltype = (ListTypeInfo) type;
                TypeInfo etype = ltype.getListElementTypeInfo();
                // Create the list if needed
                ArrayList<Object> r = reuse == null ? new ArrayList<Object>() : (ArrayList<Object>) reuse;
                // Read the list
                int size = 0;
                while (true) {
                    int more = buffer.read(invert);
                    if (more == 0) {
                        // \0 to terminate
                        break;
                    }
                    // \1 followed by each element
                    assert (more == 1);
                    if (size == r.size()) {
                        r.add(null);
                    }
                    r.set(size, deserialize(buffer, etype, invert, nullMarker, notNullMarker, r.get(size)));
                    size++;
                }
                // Remove additional elements if the list is reused
                while (r.size() > size) {
                    r.remove(r.size() - 1);
                }
                return r;
            }
        case MAP:
            {
                MapTypeInfo mtype = (MapTypeInfo) type;
                TypeInfo ktype = mtype.getMapKeyTypeInfo();
                TypeInfo vtype = mtype.getMapValueTypeInfo();
                // Create the map if needed
                Map<Object, Object> r;
                if (reuse == null) {
                    r = new HashMap<Object, Object>();
                } else {
                    r = (HashMap<Object, Object>) reuse;
                    r.clear();
                }
                while (true) {
                    int more = buffer.read(invert);
                    if (more == 0) {
                        // \0 to terminate
                        break;
                    }
                    // \1 followed by each key and then each value
                    assert (more == 1);
                    Object k = deserialize(buffer, ktype, invert, nullMarker, notNullMarker, null);
                    Object v = deserialize(buffer, vtype, invert, nullMarker, notNullMarker, null);
                    r.put(k, v);
                }
                return r;
            }
        case STRUCT:
            {
                StructTypeInfo stype = (StructTypeInfo) type;
                List<TypeInfo> fieldTypes = stype.getAllStructFieldTypeInfos();
                int size = fieldTypes.size();
                // Create the struct if needed
                ArrayList<Object> r = reuse == null ? new ArrayList<Object>(size) : (ArrayList<Object>) reuse;
                assert (r.size() <= size);
                // Set the size of the struct
                while (r.size() < size) {
                    r.add(null);
                }
                // Read one field by one field
                for (int eid = 0; eid < size; eid++) {
                    r.set(eid, deserialize(buffer, fieldTypes.get(eid), invert, nullMarker, notNullMarker, r.get(eid)));
                }
                return r;
            }
        case UNION:
            {
                UnionTypeInfo utype = (UnionTypeInfo) type;
                StandardUnion r = reuse == null ? new StandardUnion() : (StandardUnion) reuse;
                // Read the tag
                byte tag = buffer.read(invert);
                r.setTag(tag);
                r.setObject(deserialize(buffer, utype.getAllUnionObjectTypeInfos().get(tag), invert, nullMarker, notNullMarker, null));
                return r;
            }
        default:
            {
                throw new RuntimeException("Unrecognized type: " + type.getCategory());
            }
    }
}

Example 3 with StandardUnion

use of org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.StandardUnion in project hive by apache.

the class TestStandardObjectInspectors method testStandardUnionObjectInspector.

@SuppressWarnings("unchecked")
public void testStandardUnionObjectInspector() throws Throwable {
    try {
        ArrayList<ObjectInspector> objectInspectors = new ArrayList<ObjectInspector>();
        // add primitive types
        objectInspectors.add(PrimitiveObjectInspectorFactory.javaIntObjectInspector);
        objectInspectors.add(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
        objectInspectors.add(PrimitiveObjectInspectorFactory.javaBooleanObjectInspector);
        // add a list
        objectInspectors.add(ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaIntObjectInspector));
        // add a map
        objectInspectors.add(ObjectInspectorFactory.getStandardMapObjectInspector(PrimitiveObjectInspectorFactory.javaIntObjectInspector, PrimitiveObjectInspectorFactory.javaStringObjectInspector));
        // add a struct
        List<String> fieldNames = new ArrayList<String>();
        fieldNames.add("myDouble");
        fieldNames.add("myLong");
        ArrayList<ObjectInspector> fieldObjectInspectors = new ArrayList<ObjectInspector>();
        fieldObjectInspectors.add(PrimitiveObjectInspectorFactory.javaDoubleObjectInspector);
        fieldObjectInspectors.add(PrimitiveObjectInspectorFactory.javaLongObjectInspector);
        objectInspectors.add(ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldObjectInspectors));
        StandardUnionObjectInspector uoi1 = ObjectInspectorFactory.getStandardUnionObjectInspector(objectInspectors);
        StandardUnionObjectInspector uoi2 = ObjectInspectorFactory.getStandardUnionObjectInspector((ArrayList<ObjectInspector>) objectInspectors.clone());
        assertEquals(uoi1, uoi2);
        assertEquals(ObjectInspectorUtils.getObjectInspectorName(uoi1), ObjectInspectorUtils.getObjectInspectorName(uoi2));
        assertTrue(ObjectInspectorUtils.compareTypes(uoi1, uoi2));
        // compareSupported returns false because Union can contain
        // an object of Map
        assertFalse(ObjectInspectorUtils.compareSupported(uoi1));
        // construct unionObjectInspector without Map field.
        ArrayList<ObjectInspector> ois = (ArrayList<ObjectInspector>) objectInspectors.clone();
        ois.set(4, PrimitiveObjectInspectorFactory.javaIntObjectInspector);
        assertTrue(ObjectInspectorUtils.compareSupported(ObjectInspectorFactory.getStandardUnionObjectInspector(ois)));
        // metadata
        assertEquals(Category.UNION, uoi1.getCategory());
        List<? extends ObjectInspector> uois = uoi1.getObjectInspectors();
        assertEquals(6, uois.size());
        for (int i = 0; i < 6; i++) {
            assertEquals(objectInspectors.get(i), uois.get(i));
        }
        StringBuilder unionTypeName = new StringBuilder();
        unionTypeName.append("uniontype<");
        for (int i = 0; i < uois.size(); i++) {
            if (i > 0) {
                unionTypeName.append(",");
            }
            unionTypeName.append(uois.get(i).getTypeName());
        }
        unionTypeName.append(">");
        assertEquals(unionTypeName.toString(), uoi1.getTypeName());
        // TypeInfo
        TypeInfo typeInfo1 = TypeInfoUtils.getTypeInfoFromObjectInspector(uoi1);
        assertEquals(Category.UNION, typeInfo1.getCategory());
        assertEquals(UnionTypeInfo.class.getName(), typeInfo1.getClass().getName());
        assertEquals(typeInfo1.getTypeName(), uoi1.getTypeName());
        assertEquals(typeInfo1, TypeInfoUtils.getTypeInfoFromTypeString(uoi1.getTypeName()));
        TypeInfo typeInfo2 = TypeInfoUtils.getTypeInfoFromObjectInspector(uoi2);
        assertEquals(typeInfo1, typeInfo2);
        assertEquals(TypeInfoUtils.getStandardJavaObjectInspectorFromTypeInfo(typeInfo1), TypeInfoUtils.getStandardJavaObjectInspectorFromTypeInfo(typeInfo2));
        assertEquals(TypeInfoUtils.getStandardWritableObjectInspectorFromTypeInfo(typeInfo1), TypeInfoUtils.getStandardWritableObjectInspectorFromTypeInfo(typeInfo2));
        // null
        assertNull(uoi1.getField(null));
        assertEquals(-1, uoi1.getTag(null));
        // Union
        UnionObject union = new StandardUnion((byte) 0, 1);
        assertEquals(0, uoi1.getTag(union));
        assertEquals(1, uoi1.getField(union));
        assertEquals("{0:1}", SerDeUtils.getJSONString(union, uoi1));
        assertEquals(0, ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 0, 1), uoi2));
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals(1));
        union = new StandardUnion((byte) 1, "two");
        assertEquals(1, uoi1.getTag(union));
        assertEquals("two", uoi1.getField(union));
        assertEquals("{1:\"two\"}", SerDeUtils.getJSONString(union, uoi1));
        assertEquals(0, ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 1, "two"), uoi2));
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals("two"));
        union = new StandardUnion((byte) 2, true);
        assertEquals(2, uoi1.getTag(union));
        assertEquals(true, uoi1.getField(union));
        assertEquals("{2:true}", SerDeUtils.getJSONString(union, uoi1));
        assertEquals(0, ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 2, true), uoi2));
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals(true));
        ArrayList<Integer> iList = new ArrayList<Integer>();
        iList.add(4);
        iList.add(5);
        union = new StandardUnion((byte) 3, iList);
        assertEquals(3, uoi1.getTag(union));
        assertEquals(iList, uoi1.getField(union));
        assertEquals("{3:[4,5]}", SerDeUtils.getJSONString(union, uoi1));
        assertEquals(0, ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 3, iList.clone()), uoi2));
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals(iList));
        HashMap<Integer, String> map = new HashMap<Integer, String>();
        map.put(6, "six");
        map.put(7, "seven");
        map.put(8, "eight");
        union = new StandardUnion((byte) 4, map);
        assertEquals(4, uoi1.getTag(union));
        assertEquals(map, uoi1.getField(union));
        assertEquals("{4:{6:\"six\",7:\"seven\",8:\"eight\"}}", SerDeUtils.getJSONString(union, uoi1));
        Throwable th = null;
        try {
            ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 4, map.clone()), uoi2, null);
        } catch (Throwable t) {
            th = t;
        }
        assertNotNull(th);
        assertEquals("Compare on map type not supported!", th.getMessage());
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals(map));
        ArrayList<Object> struct = new ArrayList<Object>(2);
        struct.add(9.0);
        struct.add(10L);
        union = new StandardUnion((byte) 5, struct);
        assertEquals(5, uoi1.getTag(union));
        assertEquals(struct, uoi1.getField(union));
        assertEquals("{5:{\"mydouble\":9.0,\"mylong\":10}}", SerDeUtils.getJSONString(union, uoi1));
        assertEquals(0, ObjectInspectorUtils.compare(union, uoi1, new StandardUnion((byte) 5, struct.clone()), uoi2));
        assertTrue(ObjectInspectorUtils.copyToStandardObject(union, uoi1).equals(struct));
    } catch (Throwable e) {
        e.printStackTrace();
        throw e;
    }
}

Example 4 with StandardUnion

use of org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.StandardUnion in project hive by apache.

the class ReduceSinkOperator method populateCachedDistinctKeys.

/**
   * Populate distinct keys part of cachedKeys for a particular row.
   * @param row the row
   * @param index the cachedKeys index to write to
   */
private void populateCachedDistinctKeys(Object row, int index) throws HiveException {
    StandardUnion union;
    cachedKeys[index][numDistributionKeys] = union = new StandardUnion((byte) index, new Object[distinctColIndices.get(index).size()]);
    Object[] distinctParameters = (Object[]) union.getObject();
    for (int distinctParamI = 0; distinctParamI < distinctParameters.length; distinctParamI++) {
        distinctParameters[distinctParamI] = keyEval[distinctColIndices.get(index).get(distinctParamI)].evaluate(row);
    }
    union.setTag((byte) index);
}