Package com.google.protobuf.Descriptors

Examples of com.google.protobuf.Descriptors.FieldDescriptor

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    /**
     * Like {@link #fromReflectionType(Object)}, but if the type is a repeated
     * type, this converts a single element.
     */
    private Object singularFromReflectionType(final Object value) {
      FieldDescriptor descriptor = getDescriptor();
      switch (descriptor.getJavaType()) {
        case MESSAGE:
          if (singularType.isInstance(value)) {
            return value;
          } else {
            // It seems the copy of the embedded message stored inside the
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     * EnumValueDescriptors but the native accessors use the generated enum
     * type.
     */
    @SuppressWarnings("unchecked")
    private Object toReflectionType(final Object value) {
      FieldDescriptor descriptor = getDescriptor();
      if (descriptor.isRepeated()) {
        if (descriptor.getJavaType() == FieldDescriptor.JavaType.ENUM) {
          // Must convert the whole list.
          final List result = new ArrayList();
          for (final Object element : (List) value) {
            result.add(singularToReflectionType(element));
          }
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    /**
     * Like {@link #toReflectionType(Object)}, but if the type is a repeated
     * type, this converts a single element.
     */
    private Object singularToReflectionType(final Object value) {
      FieldDescriptor descriptor = getDescriptor();
      switch (descriptor.getJavaType()) {
        case ENUM:
          return invokeOrDie(enumGetValueDescriptor, value);
        default:
          return value;
      }
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        final Class<? extends Builder> builderClass) {
      this.descriptor = descriptor;
      fields = new FieldAccessor[descriptor.getFields().size()];

      for (int i = 0; i < fields.length; i++) {
        final FieldDescriptor field = descriptor.getFields().get(i);
        if (field.isRepeated()) {
          if (field.getJavaType() == FieldDescriptor.JavaType.MESSAGE) {
            fields[i] = new RepeatedMessageFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
          } else if (field.getJavaType() == FieldDescriptor.JavaType.ENUM) {
            fields[i] = new RepeatedEnumFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
          } else {
            fields[i] = new RepeatedFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
          }
        } else {
          if (field.getJavaType() == FieldDescriptor.JavaType.MESSAGE) {
            fields[i] = new SingularMessageFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
          } else if (field.getJavaType() == FieldDescriptor.JavaType.ENUM) {
            fields[i] = new SingularEnumFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
          } else {
            fields[i] = new SingularFieldAccessor(
              field, camelCaseNames[i], messageClass, builderClass);
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                 UnittestImport.getDescriptor().getServices());
    for (int i = 0; i < file.getServices().size(); i++) {
      assertEquals(i, file.getServices().get(i).getIndex());
    }

    FieldDescriptor extension =
      UnittestProto.optionalInt32Extension.getDescriptor();
    assertEquals(extension, file.getExtensions().get(0));
    assertEquals(extension,
                 file.findExtensionByName("optional_int32_extension"));
    assertNull(file.findExtensionByName("no_such_ext"));
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    assertEquals("protobuf_unittest.TestAllTypes.NestedMessage",
                 nestedType.getFullName());
    assertEquals(UnittestProto.getDescriptor(), nestedType.getFile());
    assertEquals(messageType, nestedType.getContainingType());

    FieldDescriptor field = messageType.getFields().get(0);
    assertEquals("optional_int32", field.getName());
    assertEquals(field, messageType.findFieldByName("optional_int32"));
    assertNull(messageType.findFieldByName("no_such_field"));
    assertEquals(field, messageType.findFieldByNumber(1));
    assertNull(messageType.findFieldByNumber(571283));
    for (int i = 0; i < messageType.getFields().size(); i++) {
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    }
  }

  public void testFieldDescriptor() throws Exception {
    Descriptor messageType = TestAllTypes.getDescriptor();
    FieldDescriptor primitiveField =
      messageType.findFieldByName("optional_int32");
    FieldDescriptor enumField =
      messageType.findFieldByName("optional_nested_enum");
    FieldDescriptor messageField =
      messageType.findFieldByName("optional_foreign_message");
    FieldDescriptor cordField =
      messageType.findFieldByName("optional_cord");
    FieldDescriptor extension =
      UnittestProto.optionalInt32Extension.getDescriptor();
    FieldDescriptor nestedExtension = TestRequired.single.getDescriptor();

    assertEquals("optional_int32", primitiveField.getName());
    assertEquals("protobuf_unittest.TestAllTypes.optional_int32",
                 primitiveField.getFullName());
    assertEquals(1, primitiveField.getNumber());
    assertEquals(messageType, primitiveField.getContainingType());
    assertEquals(UnittestProto.getDescriptor(), primitiveField.getFile());
    assertEquals(FieldDescriptor.Type.INT32, primitiveField.getType());
    assertEquals(FieldDescriptor.JavaType.INT, primitiveField.getJavaType());
    assertEquals(DescriptorProtos.FieldOptions.getDefaultInstance(),
                 primitiveField.getOptions());
    assertFalse(primitiveField.isExtension());
    assertEquals("optional_int32", primitiveField.toProto().getName());

    assertEquals("optional_nested_enum", enumField.getName());
    assertEquals(FieldDescriptor.Type.ENUM, enumField.getType());
    assertEquals(FieldDescriptor.JavaType.ENUM, enumField.getJavaType());
    assertEquals(TestAllTypes.NestedEnum.getDescriptor(),
                 enumField.getEnumType());

    assertEquals("optional_foreign_message", messageField.getName());
    assertEquals(FieldDescriptor.Type.MESSAGE, messageField.getType());
    assertEquals(FieldDescriptor.JavaType.MESSAGE, messageField.getJavaType());
    assertEquals(ForeignMessage.getDescriptor(), messageField.getMessageType());

    assertEquals("optional_cord", cordField.getName());
    assertEquals(FieldDescriptor.Type.STRING, cordField.getType());
    assertEquals(FieldDescriptor.JavaType.STRING, cordField.getJavaType());
    assertEquals(DescriptorProtos.FieldOptions.CType.CORD,
                 cordField.getOptions().getCtype());

    assertEquals("optional_int32_extension", extension.getName());
    assertEquals("protobuf_unittest.optional_int32_extension",
                 extension.getFullName());
    assertEquals(1, extension.getNumber());
    assertEquals(TestAllExtensions.getDescriptor(),
                 extension.getContainingType());
    assertEquals(UnittestProto.getDescriptor(), extension.getFile());
    assertEquals(FieldDescriptor.Type.INT32, extension.getType());
    assertEquals(FieldDescriptor.JavaType.INT, extension.getJavaType());
    assertEquals(DescriptorProtos.FieldOptions.getDefaultInstance(),
                 extension.getOptions());
    assertTrue(extension.isExtension());
    assertEquals(null, extension.getExtensionScope());
    assertEquals("optional_int32_extension", extension.toProto().getName());

    assertEquals("single", nestedExtension.getName());
    assertEquals("protobuf_unittest.TestRequired.single",
                 nestedExtension.getFullName());
    assertEquals(TestRequired.getDescriptor(),
                 nestedExtension.getExtensionScope());
  }
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    assertEquals(TestRequired.getDescriptor(),
                 nestedExtension.getExtensionScope());
  }

  public void testFieldDescriptorLabel() throws Exception {
    FieldDescriptor requiredField =
      TestRequired.getDescriptor().findFieldByName("a");
    FieldDescriptor optionalField =
      TestAllTypes.getDescriptor().findFieldByName("optional_int32");
    FieldDescriptor repeatedField =
      TestAllTypes.getDescriptor().findFieldByName("repeated_int32");

    assertTrue(requiredField.isRequired());
    assertFalse(requiredField.isRepeated());
    assertFalse(optionalField.isRequired());
    assertFalse(optionalField.isRepeated());
    assertFalse(repeatedField.isRequired());
    assertTrue(repeatedField.isRepeated());
  }
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    assertTrue(
      descriptor.getOptions().hasExtension(UnittestCustomOptions.messageOpt1));
    assertEquals(Integer.valueOf(-56),
      descriptor.getOptions().getExtension(UnittestCustomOptions.messageOpt1));

    FieldDescriptor field = descriptor.findFieldByName("field1");
    assertNotNull(field);

    assertTrue(
      field.getOptions().hasExtension(UnittestCustomOptions.fieldOpt1));
    assertEquals(Long.valueOf(8765432109L),
      field.getOptions().getExtension(UnittestCustomOptions.fieldOpt1));

    EnumDescriptor enumType =
      UnittestCustomOptions.TestMessageWithCustomOptions.AnEnum.getDescriptor();

    assertTrue(
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      "15: 0xabcdef1234567890\n",
      TextFormat.printToString(message));
  }

  public void testPrintField() throws Exception {
    final FieldDescriptor dataField =
      OneString.getDescriptor().findFieldByName("data");
    assertEquals(
      "data: \"test data\"\n",
      TextFormat.printFieldToString(dataField, "test data"));

    final FieldDescriptor optionalField =
      TestAllTypes.getDescriptor().findFieldByName("optional_nested_message");
    final Object value = NestedMessage.newBuilder().setBb(42).build();

    assertEquals(
      "optional_nested_message {\n  bb: 42\n}\n",
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Related Classes of com.google.protobuf.Descriptors.FieldDescriptor

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  • com.foundationdb.server.store.ChangeSetHelper
  • com.foundationdb.server.store.format.protobuf.ProtobufRowDataConverter$TableConverter
  • com.google.appengine.api.datastore.UnknownFieldChecker
  • com.google.k2crypto.keyversions.KeyVersionRegistryTest
  • com.google.k2crypto.keyversions.RegisteredKeyVersionTest
  • com.google.nigori.common.TypeAdapterProtobuf
  • com.google.protobuf.AbstractMessage
  • com.google.protobuf.AbstractMessage$Builder
  • com.google.protobuf.DescriptorsTest
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