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package tsukuba_bunko.peko.resource; |
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import java.io.InputStream; |
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import java.io.IOException; |
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import java.util.Properties; |
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import tsukuba_bunko.peko.InitializationError; |
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import tsukuba_bunko.peko.Logger; |
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import tsukuba_bunko.resource.DeserializerMapping; |
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import tsukuba_bunko.resource.ResourceDeserializer; |
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public class TypeMapping { |
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private static TypeMapping _instance = null; |
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private Properties _typeMapping = null; |
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private DeserializerMapping _deserializerMapping = null; |
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protected TypeMapping() |
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{ |
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super(); |
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} |
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public String getDataType( String resourceID ) |
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{ |
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return _typeMapping.getProperty( resourceID ); |
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} |
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public ResourceDeserializer getResourceDeserializer( String resourceID ) |
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{ |
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String type = _typeMapping.getProperty( resourceID ); |
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if( type != null ) { |
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return _deserializerMapping.getResourceDeserializer( type ); |
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} |
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else { |
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return null; |
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} |
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} |
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public DeserializerMapping getDeserializerMapping() |
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{ |
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return _deserializerMapping; |
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} |
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protected void initialize() |
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{ |
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ClassLoader cl = getClass().getClassLoader(); |
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InputStream is = cl.getResourceAsStream( "resources.def" ); |
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if( is == null ) { |
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throw new InitializationError( "resources.def not found." ); |
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} |
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Properties props = new Properties(); |
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try { |
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props.load( is ); |
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} |
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catch( IOException ioe ) { |
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Logger.fatal( "[resource] fail to initialize TypeMapping.", ioe ); |
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throw new InitializationError( "fail to initialize TypeMapping.", ioe ); |
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} |
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finally { |
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try { |
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is.close(); |
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} |
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catch( IOException ioe ) { |
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Logger.fatal( "[resource] fail to initialize TypeMapping.", ioe ); |
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} |
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} |
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_typeMapping = props; |
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_deserializerMapping = DeserializerMapping.newInstance( "tsukuba_bunko.peko.resource.mapping" ); |
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} |
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public static TypeMapping getInstance() |
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{ |
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if( _instance == null ) { |
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synchronized( TypeMapping.class ) { |
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if( _instance == null ) { |
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_instance = new TypeMapping(); |
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_instance.initialize(); |
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} |
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} |
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} |
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return _instance; |
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} |
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} |