001    /**
002     * Implements the Cold Fusion Function len
003     */
004    package railo.runtime.functions.string;
005    
006    import java.util.Map;
007    
008    import railo.runtime.PageContext;
009    import railo.runtime.exp.FunctionException;
010    import railo.runtime.ext.function.Function;
011    import railo.runtime.op.Caster;
012    import railo.runtime.type.Collection;
013    import railo.runtime.type.Query;
014    
015    import com.lowagie.text.List;
016    
017    public final class Len implements Function {
018            public static double call(PageContext pc , String string) {
019                    return string.length();
020            }
021            public static double call(PageContext pc , Object obj) throws FunctionException {
022                    if(obj instanceof String)return ((String)obj).length();
023                    if(obj instanceof Query)return ((Query)obj).getRecordcount();
024                    if(obj instanceof Collection)return ((Collection)obj).size();
025                    if(obj instanceof Map)return ((Map)obj).size();
026                    if(obj instanceof List)return ((List)obj).size();
027                    if(obj instanceof Object[])return ((Object[])obj).length;
028                    if(obj instanceof short[])return ((short[])obj).length;
029                    if(obj instanceof int[])return ((int[])obj).length;
030                    if(obj instanceof float[])return ((float[])obj).length;
031                    if(obj instanceof double[])return ((double[])obj).length;
032                    if(obj instanceof long[])return ((long[])obj).length;
033                    if(obj instanceof char[])return ((char[])obj).length;
034                    if(obj instanceof boolean[])return ((boolean[])obj).length;
035                    if(obj instanceof StringBuffer)return ((StringBuffer)obj).length();
036                    if(obj instanceof StringBuilder)return ((StringBuilder)obj).length();
037                    throw new FunctionException(pc,"len",1,"object","this type  ["+Caster.toTypeName(obj)+"] is not supported for returning the len");
038            }
039    }