litesoft
@ 950
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package org.litesoft.GWT.client.pavsupport; import org.litesoft.GWT.client.pavsupport.internal.*; import org.litesoft.GWT.client.util.*; import org.litesoft.commonfoundation.base.*; import org.litesoft.logger.*; import com.google.gwt.place.shared.*; import java.util.*; /** * Supporting class that implements PlaceHistoryMapper which expects PlaceTokenizer(s) and Place(s) that implement HasPlaceId, * otherwise Class Name magic is used (See PlaceIdExtractor). */ public class PlaceRegistry implements PlaceHistoryMapper { private static final Logger LOGGER = LoggerFactory.getLogger( PlaceRegistry.class ); private static final PlaceTokenizerMap PLACE_TOKENIZER_MAP = new PlaceTokenizerMap(); private static IdTokenizer<Place> sDefaultTokenizer; private static Place sDefaultPlace; public static void add( PlaceTokenizer<? extends Place>... pTokenizers ) { if ( pTokenizers != null ) { for ( PlaceTokenizer<? extends Place> zTokenizer : pTokenizers ) { if ( zTokenizer != null ) { PLACE_TOKENIZER_MAP.addTokenizer( zTokenizer ); } } } } public static void setDefaultTokenizer( PlaceTokenizer<? extends Place> pDefaultTokenizer ) { if ( pDefaultTokenizer != null ) { PlaceTokenizer<Place> zTokenizer = Cast.it( pDefaultTokenizer ); if ( null != (sDefaultTokenizer = ProxyIdTokenizer.forceToIdTokenizer( PLACE_TOKENIZER_MAP.addTokenizer( zTokenizer ), zTokenizer )) ) { sDefaultPlace = sDefaultTokenizer.getPlace( null ); } } } public static Place getDefaultPlace() { return sDefaultPlace; } private MessageUserSinkAccessor mMessageUserSinkAccessor; public PlaceRegistry( MessageUserSinkAccessor pMessageUserSinkAccessor ) { mMessageUserSinkAccessor = (pMessageUserSinkAccessor != null) ? pMessageUserSinkAccessor : DefaultMessageUserSink.FACTORY; } /** * Convert the full Token (URL Fragment) to a Place * * @param pToken the full URL Fragment * * @return a Place, generated by one of the Registered Tokenizers, or the Default if not found, or NULL if no Default! */ @Override public Place getPlace( String pToken ) { PlaceIdAndData zIdAndData = PlaceIdAndData.fromString( pToken ); if ( zIdAndData != null ) { String zPlaceId = zIdAndData.getPlaceId(); PlaceTokenizer<? extends Place> zTokenizer = PLACE_TOKENIZER_MAP.getTokenizer( zPlaceId ); if ( zTokenizer == null ) { mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( "Unable to determine 'view' from: " + zPlaceId ); } else { Place zPlace; try { if ( null != (zPlace = zTokenizer.getPlace( zIdAndData.getData() )) ) { return zPlace; } } catch ( RuntimeException e ) { String zMessage = "Unable to create 'view' from: "; LOGGER.warn.log( e, zMessage, pToken ); mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage + zPlaceId ); return sDefaultPlace; } if ( zPlace == null ) { String zMessage = "No 'view' from: "; LOGGER.warn.log( zMessage, pToken ); mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage + zPlaceId ); } } } return sDefaultPlace; } /** * Convert a Place into the full Token (URL Fragment) * * @param pPlace place to convert (null ok) * * @return the full URL Fragment (null if Place was null & there was NO Default Tokenizer) */ @Override public String getToken( Place pPlace ) { if ( pPlace == null ) { return null; } String zPlaceId = PlaceIdExtractor.getPlaceId( pPlace ); if ( zPlaceId == null ) { mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( "Unable to determine 'view' from class: " + pPlace.getClass().getName() ); return null; } PlaceTokenizer<Place> zTokenizer = PLACE_TOKENIZER_MAP.getTokenizer( zPlaceId ); if ( zTokenizer == null ) { String zMessage = "No 'view' for '" + zPlaceId + "'"; LOGGER.error.log( zMessage, ": ", pPlace.getClass().getName() ); mMessageUserSinkAccessor.getMessageUserSink().setErrorMessage( zMessage ); if ( null == sDefaultTokenizer ) { return null; } zTokenizer = sDefaultTokenizer; pPlace = sDefaultPlace; zPlaceId = sDefaultTokenizer.getPlaceId(); } String zToken = null; try { zToken = zTokenizer.getToken( pPlace ); } catch ( RuntimeException e ) { LOGGER.error.log( e, "Unable to 'tokenize' Place: ", pPlace.getClass(), " with PlaceId '", zPlaceId, "'" ); } return new PlaceIdAndData( zPlaceId, zToken ).toString(); } private static class ProxyIdTokenizer<T extends Place> extends IdTokenizer<T> { private PlaceTokenizer<T> mTokenizer; protected ProxyIdTokenizer( Object pPlaceId, PlaceTokenizer<T> pTokenizer ) { super( pPlaceId ); mTokenizer = pTokenizer; } @Override public T getPlace( String pToken ) { return mTokenizer.getPlace( pToken ); } @Override public String getToken( T pPlace ) { return mTokenizer.getToken( pPlace ); } public static <T extends Place> IdTokenizer<T> forceToIdTokenizer( String pPlaceId, PlaceTokenizer<T> pTokenizer ) { return (pTokenizer instanceof IdTokenizer) ? (IdTokenizer<T>) pTokenizer : new ProxyIdTokenizer<T>( pPlaceId, pTokenizer ); } } private static class PlaceTokenizerMap { private final Map<String, PlaceTokenizer<Place>> mPlaceIdToTokenizers = new HashMap<String, PlaceTokenizer<Place>>(); /** * @param pTokenizer !null * * @return PlaceId */ public String addTokenizer( PlaceTokenizer<? extends Place> pTokenizer ) { PlaceTokenizer<Place> zTokenizer = Cast.it( pTokenizer ); String zPlaceId = PlaceIdExtractor.getPlaceId( zTokenizer ); if ( null == zPlaceId ) { throw new IllegalStateException( "Unable to determine PlaceId from Tokenizer: " + pTokenizer.getClass().getName() ); } PlaceTokenizer<Place> zPreviousTokenizer = mPlaceIdToTokenizers.put( zPlaceId, zTokenizer ); if ( (zPreviousTokenizer != null) && (zPreviousTokenizer != zTokenizer) ) { throw new IllegalStateException( "Duplicate registration for PlaceId '':" + // "\n " + zPreviousTokenizer.getClass().getName() + // "\n " + pTokenizer.getClass().getName() ); } return zPlaceId; } public PlaceTokenizer<Place> getTokenizer( String pPlaceId ) { return mPlaceIdToTokenizers.get( pPlaceId ); } } private static class PlaceIdAndData { private String mPlaceId, mData; public PlaceIdAndData( String pPlaceId, String pData ) { mPlaceId = Confirm.significant( "PlaceID", pPlaceId ); mData = ConstrainTo.significantOrNull( pData ); } public String getPlaceId() { return mPlaceId; } public String getData() { return mData; } @Override public String toString() { return (mData == null) ? mPlaceId : mPlaceId + ':' + mData; } public static PlaceIdAndData fromString( String pURLfragment ) { if ( pURLfragment != null ) { if ( (pURLfragment = pURLfragment.trim()).length() != 0 ) { int at = pURLfragment.indexOf( ':' ); if ( at == 0 ) { LOGGER.error.log( "Invalid URLfragment: '", pURLfragment, "'" ); } else { String zData = null; String zPlaceID = pURLfragment; if ( at != -1 ) { zPlaceID = pURLfragment.substring( 0, at ).trim(); zData = pURLfragment.substring( at + 1 ); } return new PlaceIdAndData( zPlaceID, zData ); } } } return null; } } } |
Commits for litesoft/trunk/Java/GWT/Client/src/org/litesoft/GWT/client/pavsupport/PlaceRegistry.java
Revision | Author | Commited | Message |
---|---|---|---|
950 Diff | GeorgeS | Thu 19 Jun, 2014 17:57:04 +0000 | New Lines |
948 Diff | GeorgeS | Sat 07 Jun, 2014 23:42:39 +0000 | Jusefuls Formatter Updated to New Code Format |
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
822 Diff | GeorgeS | Sun 19 Aug, 2012 01:03:51 +0000 | |
821 Diff | GeorgeS | Sun 19 Aug, 2012 00:08:41 +0000 | |
801 Diff | GeorgeS | Wed 15 Aug, 2012 03:59:02 +0000 | |
726 Diff | GeorgeS | Thu 14 Jun, 2012 13:33:38 +0000 | |
720 Diff | GeorgeS | Sun 10 Jun, 2012 16:20:42 +0000 | |
712 | GeorgeS | Sat 09 Jun, 2012 22:46:04 +0000 | Move PAV stuff into LiteSoft |