Examples with KeyValue herddb.network.KeyValue used on opensource projects

Example 6 with KeyValue

use of herddb.network.KeyValue in project herddb by diennea.

the class MessageUtils method writeEncodedSimpleValue.

@SuppressWarnings("rawtypes")
private static void writeEncodedSimpleValue(ByteBuf output, Object o) {
    if (o == null) {
        output.writeByte(OPCODE_NULL_VALUE);
    } else if (o instanceof String) {
        output.writeByte(OPCODE_STRING_VALUE);
        writeUTF8String(output, (String) o);
    } else if (o instanceof RawString) {
        output.writeByte(OPCODE_STRING_VALUE);
        writeUTF8String(output, (RawString) o);
    } else if (o instanceof java.sql.Timestamp) {
        output.writeByte(OPCODE_TIMESTAMP_VALUE);
        ByteBufUtils.writeVLong(output, ((java.sql.Timestamp) o).getTime());
    } else if (o instanceof java.lang.Byte) {
        output.writeByte(OPCODE_BYTE_VALUE);
        output.writeByte(((Byte) o));
    } else if (o instanceof KeyValue) {
        KeyValue kv = (KeyValue) o;
        output.writeByte(OPCODE_KEYVALUE_VALUE);
        ByteBufUtils.writeArray(output, kv.key);
        ByteBufUtils.writeArray(output, kv.value);
    } else if (o instanceof Integer) {
        int i = (int) o;
        if (i < 0) {
            if (i < WRITE_MIN_Z_INT_LIMIT) {
                output.writeByte(OPCODE_INT_VALUE);
                output.writeInt(i);
            } else {
                output.writeByte(OPCODE_Z_INT_VALUE);
                ByteBufUtils.writeZInt(output, i);
            }
        } else {
            if (i > WRITE_MAX_V_INT_LIMIT) {
                output.writeByte(OPCODE_INT_VALUE);
                output.writeInt(i);
            } else {
                output.writeByte(OPCODE_V_INT_VALUE);
                ByteBufUtils.writeVInt(output, i);
            }
        }
    } else if (o instanceof Long) {
        long l = (long) o;
        if (l < 0) {
            if (l < WRITE_MIN_Z_LONG_LIMIT) {
                output.writeByte(OPCODE_LONG_VALUE);
                output.writeLong(l);
            } else {
                output.writeByte(OPCODE_Z_LONG_VALUE);
                ByteBufUtils.writeZLong(output, l);
            }
        } else {
            if (l > WRITE_MAX_V_LONG_LIMIT) {
                output.writeByte(OPCODE_LONG_VALUE);
                output.writeLong(l);
            } else {
                output.writeByte(OPCODE_V_LONG_VALUE);
                ByteBufUtils.writeVLong(output, l);
            }
        }
    } else if (o instanceof Boolean) {
        output.writeByte(OPCODE_BOOLEAN_VALUE);
        output.writeByte(((Boolean) o).booleanValue() ? 1 : 0);
    } else if (o instanceof Double) {
        output.writeByte(OPCODE_DOUBLE_VALUE);
        ByteBufUtils.writeDouble(output, ((Double) o).doubleValue());
    } else if (o instanceof Set) {
        Set set = (Set) o;
        output.writeByte(OPCODE_SET_VALUE);
        ByteBufUtils.writeVInt(output, set.size());
        for (Object o2 : set) {
            writeEncodedSimpleValue(output, o2);
        }
    } else if (o instanceof List) {
        List set = (List) o;
        output.writeByte(OPCODE_LIST_VALUE);
        ByteBufUtils.writeVInt(output, set.size());
        for (Object o2 : set) {
            writeEncodedSimpleValue(output, o2);
        }
    } else if (o instanceof Map) {
        Map set = (Map) o;
        output.writeByte(OPCODE_MAP_VALUE);
        ByteBufUtils.writeVInt(output, set.size());
        for (Map.Entry entry : (Iterable<Map.Entry>) set.entrySet()) {
            writeEncodedSimpleValue(output, entry.getKey());
            writeEncodedSimpleValue(output, entry.getValue());
        }
    } else if (o instanceof DataAccessor) {
        DataAccessor set = (DataAccessor) o;
        output.writeByte(OPCODE_MAP2_VALUE);
        // number of entries is not known
        set.forEach((key, value) -> {
            writeEncodedSimpleValue(output, key);
            writeEncodedSimpleValue(output, value);
        });
        output.writeByte(OPCODE_MAP2_VALUE_END);
    } else if (o instanceof TuplesList) {
        TuplesList set = (TuplesList) o;
        output.writeByte(OPCODE_TUPLELIST_VALUE);
        final int numColumns = set.columnNames.length;
        ByteBufUtils.writeVInt(output, numColumns);
        for (String columnName : set.columnNames) {
            writeUTF8String(output, columnName);
        }
        ByteBufUtils.writeVInt(output, set.tuples.size());
        for (DataAccessor da : set.tuples) {
            IntHolder currentColumn = new IntHolder();
            da.forEach((String key, Object value) -> {
                String expectedColumnName = set.columnNames[currentColumn.value];
                while (!key.equals(expectedColumnName)) {
                    // nulls are not returned for some special accessors, lie DataAccessorForFullRecord
                    writeEncodedSimpleValue(output, null);
                    currentColumn.value++;
                    expectedColumnName = set.columnNames[currentColumn.value];
                }
                writeEncodedSimpleValue(output, value);
                currentColumn.value++;
            });
            // fill with nulls
            while (currentColumn.value < numColumns) {
                writeEncodedSimpleValue(output, null);
                currentColumn.value++;
            }
            if (currentColumn.value > numColumns) {
                throw new RuntimeException("unexpected number of columns " + currentColumn.value + " > " + numColumns);
            }
        }
    } else if (o instanceof byte[]) {
        byte[] set = (byte[]) o;
        output.writeByte(OPCODE_BYTEARRAY_VALUE);
        ByteBufUtils.writeArray(output, set);
    } else {
        throw new RuntimeException("unsupported class " + o.getClass());
    }
}