001/* 002 * Copyright 2002-2015 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.socket.sockjs.frame; 018 019import java.io.IOException; 020import java.io.InputStream; 021 022import com.fasterxml.jackson.core.io.JsonStringEncoder; 023import com.fasterxml.jackson.databind.DeserializationFeature; 024import com.fasterxml.jackson.databind.MapperFeature; 025import com.fasterxml.jackson.databind.ObjectMapper; 026 027import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder; 028import org.springframework.util.Assert; 029 030/** 031 * A Jackson 2.6+ codec for encoding and decoding SockJS messages. 032 * 033 * <p>It customizes Jackson's default properties with the following ones: 034 * <ul> 035 * <li>{@link MapperFeature#DEFAULT_VIEW_INCLUSION} is disabled</li> 036 * <li>{@link DeserializationFeature#FAIL_ON_UNKNOWN_PROPERTIES} is disabled</li> 037 * </ul> 038 * 039 * <p>Note that Jackson's JSR-310 and Joda-Time support modules will be registered automatically 040 * when available (and when Java 8 and Joda-Time themselves are available, respectively). 041 * 042 * @author Rossen Stoyanchev 043 * @since 4.0 044 */ 045public class Jackson2SockJsMessageCodec extends AbstractSockJsMessageCodec { 046 047 private final ObjectMapper objectMapper; 048 049 050 public Jackson2SockJsMessageCodec() { 051 this.objectMapper = Jackson2ObjectMapperBuilder.json().build(); 052 } 053 054 public Jackson2SockJsMessageCodec(ObjectMapper objectMapper) { 055 Assert.notNull(objectMapper, "ObjectMapper must not be null"); 056 this.objectMapper = objectMapper; 057 } 058 059 060 @Override 061 public String[] decode(String content) throws IOException { 062 return this.objectMapper.readValue(content, String[].class); 063 } 064 065 @Override 066 public String[] decodeInputStream(InputStream content) throws IOException { 067 return this.objectMapper.readValue(content, String[].class); 068 } 069 070 @Override 071 protected char[] applyJsonQuoting(String content) { 072 return JsonStringEncoder.getInstance().quoteAsString(content); 073 } 074 075}