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Diff Revisions 511 vs 512 for /trunk/GWT_Sandbox/MultiModule/common/src/org/litesoft/sandbox/multimodule/common/client/infrastructure/PlaceRegistry.java

Diff revisions: vs.
  @@ -2,17 +2,18 @@
2 2
3 3 import java.util.*;
4 4
5 + import org.litesoft.logger.*;
5 6 import org.litesoft.sandbox.multimodule.common.client.support.*;
6 7
7 8 import com.google.gwt.place.shared.*;
8 9
9 10 /**
10 - * Supporting class that implements PlaceHistoryMapper which expect PlaceTokenizer(s) and Place(s) that implement HasPlaceId,
11 - * otherwise Class Name magic is used (The Tokenizer MUST be a static inner class of it's Place).
11 + * Supporting class that implements PlaceHistoryMapper which expects PlaceTokenizer(s) and Place(s) that implement HasPlaceId,
12 + * otherwise Class Name magic is used (See PlaceIdExtractor).
12 13 */
13 14 public class PlaceRegistry implements PlaceHistoryMapper
14 15 {
15 - public static final PlaceRegistry INSTANCE = new PlaceRegistry();
16 + private static final Logger LOGGER = LoggerFactory.getLogger( PlaceRegistry.class );
16 17
17 18 private static final PlaceTokenizerMap PLACE_TOKENIZER_MAP = new PlaceTokenizerMap();
18 19 private static IdTokenizer<Place> sDefaultTokenizer;
  @@ -36,7 +37,8 @@
36 37 {
37 38 if ( pDefaultTokenizer != null )
38 39 {
39 - if ( null != (sDefaultTokenizer = ProxyIdTokenizer.forceToIdTokenizer( PLACE_TOKENIZER_MAP.addTokenizer( pDefaultTokenizer ) )) )
40 + PlaceTokenizer<Place> zTokenizer = cast( pDefaultTokenizer );
41 + if ( null != (sDefaultTokenizer = ProxyIdTokenizer.forceToIdTokenizer( PLACE_TOKENIZER_MAP.addTokenizer( zTokenizer ), zTokenizer )) )
40 42 {
41 43 sDefaultPlace = sDefaultTokenizer.getPlace( null );
42 44 }
  @@ -48,8 +50,11 @@
48 50 return sDefaultPlace;
49 51 }
50 52
51 - private PlaceRegistry()
53 + private MessageUserSinkAccessor mMessageUserSinkAccessor;
54 +
55 + public PlaceRegistry( MessageUserSinkAccessor pMessageUserSinkAccessor )
52 56 {
57 + mMessageUserSinkAccessor = (pMessageUserSinkAccessor != null) ? pMessageUserSinkAccessor : DefaultMessageUserSink.FACTORY;
53 58 }
54 59
55 60 /**
  @@ -65,10 +70,36 @@
65 70 PlaceIdAndData zIdAndData = PlaceIdAndData.fromString( pToken );
66 71 if ( zIdAndData != null )
67 72 {
68 - PlaceTokenizer<? extends Place> zTokenizer = PLACE_TOKENIZER_MAP.getTokenizer( zIdAndData.getPlaceID() );
69 - if ( zTokenizer != null )
73 + String zPlaceId = zIdAndData.getPlaceId();
74 + PlaceTokenizer<? extends Place> zTokenizer = PLACE_TOKENIZER_MAP.getTokenizer( zPlaceId );
75 + if ( zTokenizer == null )
76 + {
77 + mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( "Unable to determine 'view' from: " + zPlaceId );
78 + }
79 + else
70 80 {
71 - return UtilsCommon.deNull( zTokenizer.getPlace( zIdAndData.getData() ), sDefaultPlace );
81 + Place zPlace;
82 +
83 + try
84 + {
85 + if ( null != (zPlace = zTokenizer.getPlace( zIdAndData.getData() )) )
86 + {
87 + return zPlace;
88 + }
89 + }
90 + catch ( RuntimeException e )
91 + {
92 + String zMessage = "Unable to create 'view' from: ";
93 + LOGGER.warn.log( e, zMessage, pToken );
94 + mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage + zPlaceId );
95 + return sDefaultPlace;
96 + }
97 + if ( zPlace == null )
98 + {
99 + String zMessage = "No 'view' from: ";
100 + LOGGER.warn.log( zMessage, pToken );
101 + mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage + zPlaceId );
102 + }
72 103 }
73 104 }
74 105 return sDefaultPlace;
  @@ -84,10 +115,22 @@
84 115 @Override
85 116 public String getToken( Place pPlace )
86 117 {
87 - String zPlaceId = PLACE_TOKENIZER_MAP.getPlaceId( pPlace );
118 + if ( pPlace == null )
119 + {
120 + return null;
121 + }
122 + String zPlaceId = PlaceIdExtractor.getPlaceId( pPlace );
123 + if ( zPlaceId == null )
124 + {
125 + mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( "Unable to determine 'view' from class: " + pPlace.getClass().getName() );
126 + return null;
127 + }
88 128 PlaceTokenizer<Place> zTokenizer = PLACE_TOKENIZER_MAP.getTokenizer( zPlaceId );
89 129 if ( zTokenizer == null )
90 130 {
131 + String zMessage = "No 'view' for '" + zPlaceId + "'";
132 + LOGGER.error.log( zMessage, ": ", pPlace.getClass().getName() );
133 + mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage );
91 134 if ( null == sDefaultTokenizer )
92 135 {
93 136 return null;
  @@ -96,7 +139,16 @@
96 139 pPlace = sDefaultPlace;
97 140 zPlaceId = sDefaultTokenizer.getPlaceId();
98 141 }
99 - return new PlaceIdAndData( zPlaceId, zTokenizer.getToken( pPlace ) ).toString();
142 + String zToken = null;
143 + try
144 + {
145 + zToken = zTokenizer.getToken( pPlace );
146 + }
147 + catch ( RuntimeException e )
148 + {
149 + LOGGER.error.log( e, "Unable to 'tokenize' Place: ", pPlace.getClass(), " with PlaceId '", zPlaceId, "'" );
150 + }
151 + return new PlaceIdAndData( zPlaceId, zToken ).toString();
100 152 }
101 153
102 154 @SuppressWarnings({"unchecked"})
  @@ -109,7 +161,7 @@
109 161 {
110 162 private PlaceTokenizer<T> mTokenizer;
111 163
112 - protected ProxyIdTokenizer( PlaceTokenizer<T> pTokenizer, Object pPlaceId )
164 + protected ProxyIdTokenizer( Object pPlaceId, PlaceTokenizer<T> pTokenizer )
113 165 {
114 166 super( pPlaceId );
115 167 mTokenizer = pTokenizer;
  @@ -127,42 +179,37 @@
127 179 return mTokenizer.getToken( pPlace );
128 180 }
129 181
130 - public static <T extends Place> IdTokenizer<T> forceToIdTokenizer( PlaceTokenizer<T> pTokenizer )
182 + public static <T extends Place> IdTokenizer<T> forceToIdTokenizer( String pPlaceId, PlaceTokenizer<T> pTokenizer )
131 183 {
132 - if ( pTokenizer instanceof IdTokenizer )
133 - {
134 - return (IdTokenizer<T>) pTokenizer;
135 - }
136 - if ( pTokenizer instanceof HasPlaceId )
137 - {
138 - return new ProxyIdTokenizer<T>( pTokenizer, ((HasPlaceId) pTokenizer).getPlaceId() );
139 - }
140 - return null;
184 + return (pTokenizer instanceof IdTokenizer) ? (IdTokenizer<T>) pTokenizer : new ProxyIdTokenizer<T>( pPlaceId, pTokenizer );
141 185 }
142 186 }
143 187
144 188 private static class PlaceTokenizerMap
145 189 {
146 - Map<String, PlaceTokenizer<Place>> mPlaceIdToTokenizers = new HashMap<String, PlaceTokenizer<Place>>();
190 + private final Map<String, PlaceTokenizer<Place>> mPlaceIdToTokenizers = new HashMap<String, PlaceTokenizer<Place>>();
147 191
148 - public PlaceTokenizer<Place> addTokenizer( PlaceTokenizer<? extends Place> pTokenizer )
192 + /**
193 + * @param pTokenizer !null
194 + *
195 + * @return PlaceId
196 + */
197 + public String addTokenizer( PlaceTokenizer<? extends Place> pTokenizer )
149 198 {
150 199 PlaceTokenizer<Place> zTokenizer = cast( pTokenizer );
151 - if ( !(zTokenizer instanceof HasPlaceId) )
200 + String zPlaceId = PlaceIdExtractor.getPlaceId( zTokenizer );
201 + if ( null == zPlaceId )
152 202 {
153 - throw new IllegalStateException( "Attempt to add PlaceTokenizer that does NOT implement HasPlaceId: " + pTokenizer );
203 + throw new IllegalStateException( "Unable to determine PlaceId from Tokenizer: " + pTokenizer.getClass().getName() );
154 204 }
155 - mPlaceIdToTokenizers.put( ((HasPlaceId) zTokenizer).getPlaceId(), zTokenizer );
156 - return zTokenizer;
157 - }
158 -
159 - public String getPlaceId( Place pPlace )
160 - {
161 - if ( pPlace instanceof HasPlaceId )
205 + PlaceTokenizer<Place> zPreviousTokenizer = mPlaceIdToTokenizers.put( zPlaceId, zTokenizer );
206 + if ( (zPreviousTokenizer != null) && (zPreviousTokenizer != zTokenizer) )
162 207 {
163 - return ((HasPlaceId) pPlace).getPlaceId();
208 + throw new IllegalStateException( "Duplicate registration for PlaceId '':" + //
209 + "\n " + zPreviousTokenizer.getClass().getName() + //
210 + "\n " + pTokenizer.getClass().getName() );
164 211 }
165 - throw new IllegalStateException( "Attempt to fetch PlaceTokenizer with a Place that does NOT implement HasPlaceId: " + pPlace );
212 + return zPlaceId;
166 213 }
167 214
168 215 public PlaceTokenizer<Place> getTokenizer( String pPlaceId )
  @@ -173,17 +220,17 @@
173 220
174 221 private static class PlaceIdAndData
175 222 {
176 - private String mPlaceID, mData;
223 + private String mPlaceId, mData;
177 224
178 - public PlaceIdAndData( String pPlaceID, String pData )
225 + public PlaceIdAndData( String pPlaceId, String pData )
179 226 {
180 - mPlaceID = UtilsCommon.assertNotEmpty( "PlaceID", pPlaceID );
227 + mPlaceId = UtilsCommon.assertNotEmpty( "PlaceID", pPlaceId );
181 228 mData = UtilsCommon.noEmpty( pData );
182 229 }
183 230
184 - public String getPlaceID()
231 + public String getPlaceId()
185 232 {
186 - return mPlaceID;
233 + return mPlaceId;
187 234 }
188 235
189 236 public String getData()
  @@ -194,7 +241,7 @@
194 241 @Override
195 242 public String toString()
196 243 {
197 - return (mData == null) ? mPlaceID : mPlaceID + ':' + mData;
244 + return (mData == null) ? mPlaceId : mPlaceId + ':' + mData;
198 245 }
199 246
200 247 public static PlaceIdAndData fromString( String pURLfragment )
  @@ -204,14 +251,18 @@
204 251 if ( (pURLfragment = pURLfragment.trim()).length() != 0 )
205 252 {
206 253 int at = pURLfragment.indexOf( ':' );
207 - if ( at != 0 )
254 + if ( at == 0 )
255 + {
256 + LOGGER.error.log( "Invalid URLfragment: '", pURLfragment, "'" );
257 + }
258 + else
208 259 {
209 260 String zData = null;
210 261 String zPlaceID = pURLfragment;
211 262 if ( at != -1 )
212 263 {
213 264 zPlaceID = pURLfragment.substring( 0, at ).trim();
214 - zData = UtilsCommon.noEmpty( pURLfragment.substring( at + 1 ) );
265 + zData = pURLfragment.substring( at + 1 );
215 266 }
216 267 return new PlaceIdAndData( zPlaceID, zData );
217 268 }

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