Java Code Examples for com.google.protobuf.CodedOutputStream#writeSInt64NoTag()

@Override
public byte[] serialize(Object obj) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CodedOutputStream output = CodedOutputStream.newInstance(baos);
    output.writeBoolNoTag(obj == null);
    if (obj == null) {
        output.flush();
        return baos.toByteArray();
    }

    Class<?> clazz = obj.getClass();
    if (clazz == int.class || clazz == Integer.class) {
        output.writeSInt32NoTag((Integer) obj);
    } else if (clazz == long.class || clazz == Long.class) {
        output.writeSInt64NoTag((Long) obj);
    } else if (clazz == boolean.class || clazz == Boolean.class) {
        output.writeBoolNoTag((Boolean) obj);
    } else if (clazz == byte.class || clazz == Byte.class) {
        output.writeRawByte((Byte) obj);
    } else if (clazz == char.class || clazz == Character.class) {
        output.writeSInt32NoTag((Character) obj);
    } else if (clazz == short.class || clazz == Short.class) {
        output.writeSInt32NoTag((Short) obj);
    } else if (clazz == double.class || clazz == Double.class) {
        output.writeDoubleNoTag((Double) obj);
    } else if (clazz == float.class || clazz == Float.class) {
        output.writeFloatNoTag((Float) obj);
    } else if (clazz == String.class) {
        output.writeStringNoTag(obj.toString());
    } else if (MessageLite.class.isAssignableFrom(clazz)) {
        output.writeMessageNoTag((MessageLite) obj);
    } else if (Throwable.class.isAssignableFrom(clazz)) {
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(obj);
        oos.flush();
    } else {
        throw new IllegalArgumentException("can't serialization " + clazz);
    }

    output.flush();
    return baos.toByteArray();
}
 

/**
 * Write a field of arbitrary type, without its tag, to the stream.
 *
 * @param output The output stream.
 * @param type The field's type.
 * @param value Object representing the field's value. Must be of the exact type which would be returned by
 *            {@link Message#getField(Descriptors.FieldDescriptor)} for this field.
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void writeElementNoTag(final CodedOutputStream output, final WireFormat.FieldType type,
        final Object value) throws IOException {
    switch (type) {
        case DOUBLE:
            output.writeDoubleNoTag((Double) value);
            break;
        case FLOAT:
            output.writeFloatNoTag((Float) value);
            break;
        case INT64:
            output.writeInt64NoTag((Long) value);
            break;
        case UINT64:
            output.writeUInt64NoTag((Long) value);
            break;
        case INT32:
            output.writeInt32NoTag((Integer) value);
            break;
        case FIXED64:
            output.writeFixed64NoTag((Long) value);
            break;
        case FIXED32:
            output.writeFixed32NoTag((Integer) value);
            break;
        case BOOL:
            output.writeBoolNoTag((Boolean) value);
            break;
        case STRING:
            output.writeStringNoTag((String) value);
            break;
        // group not support yet
        // case GROUP : output.writeGroupNoTag ((MessageLite) value); break;
        case MESSAGE:
            writeObject(output, 0, FieldType.OBJECT, value, false, false);
            break;
        case BYTES:
            if (value instanceof ByteString) {
                output.writeBytesNoTag((ByteString) value);
            } else {
                byte[] v;
                if (value instanceof Byte[]) {
                    v = toByteArray((Byte[]) value);
                } else {
                    v = (byte[]) value;
                }
                output.writeByteArrayNoTag(v);
            }
            break;
        case UINT32:
            output.writeUInt32NoTag((Integer) value);
            break;
        case SFIXED32:
            output.writeSFixed32NoTag((Integer) value);
            break;
        case SFIXED64:
            output.writeSFixed64NoTag((Long) value);
            break;
        case SINT32:
            output.writeSInt32NoTag((Integer) value);
            break;
        case SINT64:
            output.writeSInt64NoTag((Long) value);
            break;

        case ENUM:
            if (value instanceof Internal.EnumLite) {
                output.writeEnumNoTag(((Internal.EnumLite) value).getNumber());
            } else {

                if (value instanceof EnumReadable) {
                    output.writeEnumNoTag(((EnumReadable) value).value());
                } else if (value instanceof Enum) {
                    output.writeEnumNoTag(((Enum) value).ordinal());
                } else {
                    output.writeEnumNoTag(((Integer) value).intValue());
                }

            }
            break;
    }
}