|
1 package com.thoughtworks.xstream.mapper;
2
3 import com.thoughtworks.xstream.alias.ClassMapper;
4
5 import java.util.*;
6
7
13 public class FieldAliasingMapper extends MapperWrapper {
14
15 protected final Map fieldToAliasMap = Collections.synchronizedMap(new HashMap());
16 protected final Map aliasToFieldMap = Collections.synchronizedMap(new HashMap());
17 protected final Set fieldsToOmit = Collections.synchronizedSet(new HashSet());
18
19 public FieldAliasingMapper(ClassMapper wrapped) {
20 super(wrapped);
21 }
22
23 public void addFieldAlias(String  alias, Class type, String fieldName) {
24 fieldToAliasMap.put(key(type, fieldName), alias);
25 aliasToFieldMap.put(key(type, alias), fieldName);
26 }
27
28 private Object key(Class type, String value) {
29 return type.getName() + '.' + value;
30 }
31
32 public String serializedMember(Class type, String memberName) {
33 String alias = (String ) fieldToAliasMap.get(key(type, memberName));
34 if (alias == null) {
35 return super.serializedMember(type, memberName);
36 } else {
37 return alias;
38 }
39 }
40
41 public String realMember(Class type, String serialized) {
42 String real = (String ) aliasToFieldMap.get(key(type, serialized));
43 if (real == null) {
44 return super.realMember(type, serialized);
45 } else {
46 return real;
47 }
48 }
49
50 public boolean shouldSerializeMember(Class definedIn, String fieldName) {
51 return !fieldsToOmit.contains(key(definedIn, fieldName));
52 }
53
54 public void omitField(Class type, String fieldName) {
55 fieldsToOmit.add(key(type, fieldName));
56 }
57 }
58 |
Popular Tags |
Java API By Example, From Geeks To Geeks.