/* * Copyright (C) 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.gson; import com.google.gson.annotations.SerializedName; import java.lang.reflect.Field; /** * A {@link FieldNamingStrategy} that acts as a chain of responsibility. If the * {@link com.google.gson.annotations.SerializedName} annotation is applied to a field then this * strategy will translate the name to the {@code serializedName.value()}; otherwise it delegates * to the wrapped {@link FieldNamingStrategy}. * *

NOTE: this class performs JSON field name validation for any of the fields marked with * an {@code @SerializedName} annotation.

* * @see SerializedName * * @author Joel Leitch */ class SerializedNameAnnotationInterceptingNamingPolicy implements FieldNamingStrategy { private static final JsonFieldNameValidator fieldNameValidator = new JsonFieldNameValidator(); private final FieldNamingStrategy delegate; public SerializedNameAnnotationInterceptingNamingPolicy(FieldNamingStrategy delegate) { this.delegate = delegate; } public String translateName(Field f) { Preconditions.checkNotNull(f); SerializedName serializedName = f.getAnnotation(SerializedName.class); if (serializedName != null) { return fieldNameValidator.validate(serializedName.value()); } else { return delegate.translateName(f); } } }