Coverage Report

Coverage Report - net.sf.json.JSONSerializer

Classes in this File

Line Coverage

Branch Coverage

Complexity

JSONSerializer

0/38

0/22

3.333

 /*
  * Copyright 2002-2009 the original author or authors.
  *
  * 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 net.sf.json;
 
 import net.sf.json.util.JSONTokener;
 import net.sf.json.util.JSONUtils;
 
 /**
  * Transforms java objects into JSON and back.<br>
  * Transformation from java to JSON is pretty straightforward, but the other way
  * around needs certain configuration, otherwise the java objects produced will
  * be DynaBeans and Lists, because the JSON notation does not carry any
  * information on java classes.<br>
  *
  * @author Andres Almiray <aalmiray@users.sourceforge.net>
  */
 public class JSONSerializer {
    /**
     * Transform a JSON value to a java object.<br>
     * Depending on the configured values for conversion this will return a
     * DynaBean, a bean, a List, or and array.
     *
     * @param json a JSON value
     * @return depends on the nature of the source object (JSONObject, JSONArray,
     *         JSONNull).
     */
    public static Object toJava( JSON json ) {
       return toJava( json, new JsonConfig() );
    }
 
    /**
     * Transform a JSON value to a java object.<br>
     * Depending on the configured values for conversion this will return a
     * DynaBean, a bean, a List, or and array.
     *
     * @param json a JSON value
     * @param jsonConfig additional configuration
     * @return depends on the nature of the source object (JSONObject, JSONArray,
     *         JSONNull) and the configured rootClass, classMap and arrayMode
     */
    public static Object toJava( JSON json, JsonConfig jsonConfig ) {
       if( JSONUtils.isNull( json ) ){
          return null;
       }
 
       Object object = null;
 
       if( json instanceof JSONArray ){
          if( jsonConfig.getArrayMode() == JsonConfig.MODE_OBJECT_ARRAY ){
             object = JSONArray.toArray( (JSONArray) json, jsonConfig );
          }else{
             object = JSONArray.toCollection( (JSONArray) json, jsonConfig );
          }
       }else{
          object = JSONObject.toBean( (JSONObject) json, jsonConfig );
       }
 
       return object;
    }
 
    /**
     * Creates a JSONObject, JSONArray or a JSONNull from object.<br>
     * Accepts JSON formatted strings, Maps, arrays, Collections, DynaBeans and
     * JavaBeans.
     *
     * @param object any java Object
     * @throws JSONException if the object can not be converted
     */
    public static JSON toJSON( Object object ) {
       return toJSON( object, new JsonConfig() );
    }
 
    /**
     * Creates a JSONObject, JSONArray or a JSONNull from object.<br>
     * Accepts JSON formatted strings, Maps, arrays, Collections, DynaBeans and
     * JavaBeans.
     *
     * @param object any java Object
     * @param jsonConfig additional configuration
     * @throws JSONException if the object can not be converted
     */
    public static JSON toJSON( Object object, JsonConfig jsonConfig ) {
       JSON json = null;
       if( object == null ){
          json = JSONNull.getInstance();
       }else if( object instanceof JSONString ){
          json = toJSON( (JSONString) object, jsonConfig );
       }else if( object instanceof String ){
          json = toJSON( (String) object, jsonConfig );
       }else if( JSONUtils.isArray( object ) ){
          json = JSONArray.fromObject( object, jsonConfig );
       }else{
          try{
             json = JSONObject.fromObject( object, jsonConfig );
          }catch( JSONException e ){
             if( object instanceof JSONTokener ){
                ((JSONTokener) object).reset();
             }
             json = JSONArray.fromObject( object, jsonConfig );
          }
       }
 
       return json;
    }
 
    /**
     * Creates a JSONObject, JSONArray or a JSONNull from a JSONString.
     *
     * @throws JSONException if the string is not a valid JSON string
     */
    private static JSON toJSON( JSONString string, JsonConfig jsonConfig ) {
       return toJSON( string.toJSONString(), jsonConfig );
    }
 
    /**
     * Creates a JSONObject, JSONArray or a JSONNull from a JSONString.
     *
     * @throws JSONException if the string is not a valid JSON string
     */
    private static JSON toJSON( String string, JsonConfig jsonConfig ) {
       JSON json = null;
       if( string.startsWith( "[" ) ){
          json = JSONArray.fromObject( string, jsonConfig );
       }else if( string.startsWith( "{" ) ){
          json = JSONObject.fromObject( string, jsonConfig );
       }else if( "null".equals( string ) ){
          json = JSONNull.getInstance();
       }else{
          throw new JSONException( "Invalid JSON String" );
       }
 
       return json;
    }
 }

1		/*
2		* Copyright 2002-2009 the original author or authors.
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License");
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://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,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16
17		package net.sf.json;
18
19		import net.sf.json.util.JSONTokener;
20		import net.sf.json.util.JSONUtils;
21
22		/**
23		* Transforms java objects into JSON and back.<br>
24		* Transformation from java to JSON is pretty straightforward, but the other way
25		* around needs certain configuration, otherwise the java objects produced will
26		* be DynaBeans and Lists, because the JSON notation does not carry any
27		* information on java classes.<br>
28		*
29		* @author Andres Almiray <aalmiray@users.sourceforge.net>
30		*/
31	0	public class JSONSerializer {
32		/**
33		* Transform a JSON value to a java object.<br>
34		* Depending on the configured values for conversion this will return a
35		* DynaBean, a bean, a List, or and array.
36		*
37		* @param json a JSON value
38		* @return depends on the nature of the source object (JSONObject, JSONArray,
39		* JSONNull).
40		*/
41		public static Object toJava( JSON json ) {
42	0	return toJava( json, new JsonConfig() );
43		}
44
45		/**
46		* Transform a JSON value to a java object.<br>
47		* Depending on the configured values for conversion this will return a
48		* DynaBean, a bean, a List, or and array.
49		*
50		* @param json a JSON value
51		* @param jsonConfig additional configuration
52		* @return depends on the nature of the source object (JSONObject, JSONArray,
53		* JSONNull) and the configured rootClass, classMap and arrayMode
54		*/
55		public static Object toJava( JSON json, JsonConfig jsonConfig ) {
56	0	if( JSONUtils.isNull( json ) ){
57	0	return null;
58		}
59
60	0	Object object = null;
61
62	0	if( json instanceof JSONArray ){
63	0	if( jsonConfig.getArrayMode() == JsonConfig.MODE_OBJECT_ARRAY ){
64	0	object = JSONArray.toArray( (JSONArray) json, jsonConfig );
65		}else{
66	0	object = JSONArray.toCollection( (JSONArray) json, jsonConfig );
67		}
68		}else{
69	0	object = JSONObject.toBean( (JSONObject) json, jsonConfig );
70		}
71
72	0	return object;
73		}
74
75		/**
76		* Creates a JSONObject, JSONArray or a JSONNull from object.<br>
77		* Accepts JSON formatted strings, Maps, arrays, Collections, DynaBeans and
78		* JavaBeans.
79		*
80		* @param object any java Object
81		* @throws JSONException if the object can not be converted
82		*/
83		public static JSON toJSON( Object object ) {
84	0	return toJSON( object, new JsonConfig() );
85		}
86
87		/**
88		* Creates a JSONObject, JSONArray or a JSONNull from object.<br>
89		* Accepts JSON formatted strings, Maps, arrays, Collections, DynaBeans and
90		* JavaBeans.
91		*
92		* @param object any java Object
93		* @param jsonConfig additional configuration
94		* @throws JSONException if the object can not be converted
95		*/
96		public static JSON toJSON( Object object, JsonConfig jsonConfig ) {
97	0	JSON json = null;
98	0	if( object == null ){
99	0	json = JSONNull.getInstance();
100	0	}else if( object instanceof JSONString ){
101	0	json = toJSON( (JSONString) object, jsonConfig );
102	0	}else if( object instanceof String ){
103	0	json = toJSON( (String) object, jsonConfig );
104	0	}else if( JSONUtils.isArray( object ) ){
105	0	json = JSONArray.fromObject( object, jsonConfig );
106		}else{
107		try{
108	0	json = JSONObject.fromObject( object, jsonConfig );
109	0	}catch( JSONException e ){
110	0	if( object instanceof JSONTokener ){
111	0	((JSONTokener) object).reset();
112		}
113	0	json = JSONArray.fromObject( object, jsonConfig );
114	0	}
115		}
116
117	0	return json;
118		}
119
120		/**
121		* Creates a JSONObject, JSONArray or a JSONNull from a JSONString.
122		*
123		* @throws JSONException if the string is not a valid JSON string
124		*/
125		private static JSON toJSON( JSONString string, JsonConfig jsonConfig ) {
126	0	return toJSON( string.toJSONString(), jsonConfig );
127		}
128
129		/**
130		* Creates a JSONObject, JSONArray or a JSONNull from a JSONString.
131		*
132		* @throws JSONException if the string is not a valid JSON string
133		*/
134		private static JSON toJSON( String string, JsonConfig jsonConfig ) {
135	0	JSON json = null;
136	0	if( string.startsWith( "[" ) ){
137	0	json = JSONArray.fromObject( string, jsonConfig );
138	0	}else if( string.startsWith( "{" ) ){
139	0	json = JSONObject.fromObject( string, jsonConfig );
140	0	}else if( "null".equals( string ) ){
141	0	json = JSONNull.getInstance();
142		}else{
143	0	throw new JSONException( "Invalid JSON String" );
144		}
145
146	0	return json;
147		}
148		}