Revision 44924 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/function/programming/FileFunction.java

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FileFunction.java
2 2 

  		




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import java.io.File;


  		




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import java.net.URI;


  		




  
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import java.net.URL;


  		




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import org.apache.commons.lang3.Range;


  		




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import org.gvsig.expressionevaluator.ExpressionRuntimeException;


  		




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import org.gvsig.expressionevaluator.Function;


  		




  ......




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            NAME, 


  		




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            Range.is(1),


  		




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            null,


  		




  
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            NAME+"({{expression}})",


  		




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            null,


  		




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            null,


  		




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            "Object",


  		




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            false


  		




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        );


  		




  ......




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    @Override


  		




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    public Object call(Interpreter interpreter, Object[] args) throws Exception {


  		




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        Object value;


  		




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        Object obj = getObject(args, 0);


  		




  
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        File value = toFile(obj);


  		




  
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        return value;


  		




  
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    }


  		




  
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    public static File toFile(Object obj) {


  		




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        if( obj == null ) {


  		




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            return 0;


  		




  
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            return null;


  		




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        }        


  		




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        if( obj instanceof File ) {


  		




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            return obj;


  		




  
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            return (File) obj;


  		




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        } else if( obj instanceof CharSequence ) {


  		




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            value = new File(((CharSequence)obj).toString());


  		




  
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            return new File(((CharSequence)obj).toString());


  		




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        } else if( obj instanceof URI ) {


  		




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            value = new File(((URI)obj));


  		




  
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            return new File(((URI)obj));


  		




  
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        } else if( obj instanceof URL ) {


  		




  
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            return new File(((URL)obj).getPath());


  		




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        } else {


  		




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            throw new ExpressionRuntimeException("The "+NAME+" function require a File or a String and a received a '"+obj.getClass().getSimpleName()+"'.");


  		




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        }


  		




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        return value;


  		




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    }


  		




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}


  		












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