Java Any.newBuilder方法代码示例

import com.google.protobuf.Any; //导入方法依赖的package包/类
@Test
public void parserUnexpectedTypeUrl() throws Exception {
  Any.Builder builder = Any.newBuilder();
  assertThatThrownBy(
          () ->
              mergeFromJson(
                  "{\n"
                      + "  \"@type\": \"type.googleapis.com/json_test.TestAllTypes\",\n"
                      + "  \"optionalInt32\": 12345\n"
                      + "}",
                  builder))
      .isInstanceOf(InvalidProtocolBufferException.class);
}
 

import com.google.protobuf.Any; //导入方法依赖的package包/类
@Test
public void emptyWrapperTypesInAny() throws Exception {
  Any.Builder builder = Any.newBuilder();
  mergeFromJson(
      "{\n"
          + "  \"@type\": \"type.googleapis.com/google.protobuf.BoolValue\",\n"
          + "  \"value\": false\n"
          + "}\n",
      builder,
      TestAllTypes.getDefaultInstance());
  Any any = builder.build();
  assertEquals(0, any.getValue().size());
}
 

import com.google.protobuf.Any; //导入方法依赖的package包/类
@Test
public void parserMissingTypeUrl() throws Exception {
  Any.Builder builder = Any.newBuilder();
  assertThatThrownBy(() -> mergeFromJson("{\n" + "  \"optionalInt32\": 1234\n" + "}", builder))
      .isInstanceOf(InvalidProtocolBufferException.class);
}
 

import com.google.protobuf.Any; //导入方法依赖的package包/类
/**
 * Convert a protocol buffer field value to {@link Any} with the below rule:
 * <ul>
 *    <li> If the field is a primitive type and can be mapped to a wrapper message type
 *    defined in //tech/type/proto/wrappers.proto, its value is boxed into a wrapper
 *     and goes to Any.value, the type name of the wrapper goes to Any.type_url.
 *    <li> If the field is already a message, its type name goes to Any.type_url,
 *    its value directly goes to Any.value
 *    <li> If the field is an enum value, the name of the enum value is boxed into
 *    tech.type.String and put into Any.value, and tech.type.String goes to Any.type_url.
 */
private static Any toAnyType(FieldDescriptor.Type protobufType, Object value) {
  Any.Builder builder = Any.newBuilder();
  java.lang.String typeFullName;
  Message wrapperMessage;
  switch (protobufType) {
    case MESSAGE:
      wrapperMessage = (Message) value;
      typeFullName = wrapperMessage.getDescriptorForType().getFullName();
      break;
    case ENUM:
      // NOTE: Erasing the enum type to the String wrapper is currently intentional, to avoid
      // the need to add an enum wrapper type.  This may change in the future.
      typeFullName = StringValue.getDescriptor().getFullName();
      wrapperMessage =
          StringValue.newBuilder().setValue(((EnumValueDescriptor) value).getName()).build();
      break;
    case BOOL:
      typeFullName = BoolValue.getDescriptor().getFullName();
      wrapperMessage = BoolValue.newBuilder().setValue((Boolean) value).build();
      break;
    case DOUBLE:
      typeFullName = DoubleValue.getDescriptor().getFullName();
      wrapperMessage = DoubleValue.newBuilder().setValue((java.lang.Double) value).build();
      break;
    case FLOAT:
      typeFullName = FloatValue.getDescriptor().getFullName();
      wrapperMessage = FloatValue.newBuilder().setValue((java.lang.Float) value).build();
      break;
    case STRING:
      typeFullName = StringValue.getDescriptor().getFullName();
      wrapperMessage = StringValue.newBuilder().setValue((java.lang.String) value).build();
      break;
    case SINT32:
    case SFIXED32:
    case INT32:
      typeFullName = Int32Value.getDescriptor().getFullName();
      wrapperMessage = Int32Value.newBuilder().setValue((Integer) value).build();
      break;
    case SINT64:
    case SFIXED64:
    case INT64:
      typeFullName = Int64Value.getDescriptor().getFullName();
      wrapperMessage = Int64Value.newBuilder().setValue((Long) value).build();
      break;
    case UINT32:
    case FIXED32:
      typeFullName = UInt32Value.getDescriptor().getFullName();
      wrapperMessage = UInt32Value.newBuilder().setValue((Integer) value).build();
      break;
    case UINT64:
    case FIXED64:
      typeFullName = UInt64Value.getDescriptor().getFullName();
      wrapperMessage = UInt64Value.newBuilder().setValue((Long) value).build();
      break;
    case BYTES:
      typeFullName = BytesValue.getDescriptor().getFullName();
      wrapperMessage = BytesValue.newBuilder().setValue(ByteString.copyFrom((byte[]) value))
          .build();
      break;
    default:
      throw new IllegalArgumentException("Type " + protobufType.name()
          + " cannot be converted to Any type.");
  }
  return builder.setTypeUrl(TYPE_SERVICE_BASE_URL + "/" + typeFullName)
      .setValue(wrapperMessage.toByteString()).build();
}