| /* |
| * Copyright 2007 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.gwt.user.client.rpc.core.java.util; |
| |
| import com.google.gwt.core.client.GWT; |
| import com.google.gwt.user.client.rpc.SerializationException; |
| import com.google.gwt.user.client.rpc.SerializationStreamReader; |
| import com.google.gwt.user.client.rpc.SerializationStreamWriter; |
| |
| import java.util.List; |
| |
| /** |
| * Dummy class for nesting the custom serializer. |
| */ |
| public final class Arrays { |
| |
| /** |
| * Custom field serializer for {@link java.util.Arrays$ArrayList}. |
| */ |
| public static final class ArrayList_CustomFieldSerializer { |
| |
| public static Class<?> concreteType() { |
| return java.util.Arrays.asList().getClass(); |
| } |
| |
| /* |
| * Note: the reason this implementation differs from that of a standard List |
| * (which serializes a number and then each element) is the requirement that |
| * the underlying array retain its correct type across the wire. This gives |
| * toArray() results the correct type, and can generate internal |
| * ArrayStoreExceptions. |
| */ |
| @SuppressWarnings("unused") |
| public static void deserialize(SerializationStreamReader streamReader, |
| List<?> instance) throws SerializationException { |
| // Handled in instantiate. |
| } |
| |
| public static List<?> instantiate(SerializationStreamReader streamReader) |
| throws SerializationException { |
| Object[] array = (Object[]) streamReader.readObject(); |
| return java.util.Arrays.asList(array); |
| } |
| |
| public static void serialize(SerializationStreamWriter streamWriter, |
| List<?> instance) throws SerializationException { |
| Object[] array; |
| if (GWT.isScript()) { |
| // Violator pattern. |
| array = getArray0(instance); |
| } else { |
| // Clone the underlying array. |
| array = instance.toArray(); |
| } |
| streamWriter.writeObject(array); |
| } |
| |
| private static native Object[] getArray0(List<?> instance) /*-{ |
| return instance.@java.util.Arrays$ArrayList::array; |
| }-*/; |
| } |
| } |