1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.codec.marshalling;
17
18 import io.netty.channel.ChannelHandlerContext;
19
20 import org.jboss.marshalling.MarshallerFactory;
21 import org.jboss.marshalling.MarshallingConfiguration;
22 import org.jboss.marshalling.Unmarshaller;
23
24 /**
25 * Default implementation of {@link UnmarshallerProvider} which will just create a new {@link Unmarshaller}
26 * on every call to {@link #getUnmarshaller(ChannelHandlerContext)}
27 *
28 * <strong>Security:</strong> serialization can be a security liability,
29 * and should not be used without defining a list of classes that are
30 * allowed to be deserialized. This explicitly needs to be done via {@link MarshallingConfiguration},
31 * missing to do so is a security risk.
32 */
33 public class DefaultUnmarshallerProvider implements UnmarshallerProvider {
34
35 private final MarshallerFactory factory;
36 private final MarshallingConfiguration config;
37
38 /**
39 * Create a new instance of {@link DefaultMarshallerProvider}
40 *
41 * @param factory the {@link MarshallerFactory} to use to create {@link Unmarshaller}
42 * @param config the {@link MarshallingConfiguration}
43 */
44 public DefaultUnmarshallerProvider(MarshallerFactory factory, MarshallingConfiguration config) {
45 this.factory = factory;
46 this.config = config;
47 }
48
49 @Override
50 public Unmarshaller getUnmarshaller(ChannelHandlerContext ctx) throws Exception {
51 return factory.createUnmarshaller(config);
52 }
53
54 }