001 /** 002 * Implements the CFML Function arraysort 003 */ 004 package railo.runtime.functions.arrays; 005 006 import java.util.Comparator; 007 008 import railo.runtime.PageContext; 009 import railo.runtime.exp.CasterException; 010 import railo.runtime.exp.ExpressionException; 011 import railo.runtime.exp.FunctionException; 012 import railo.runtime.exp.PageException; 013 import railo.runtime.exp.PageRuntimeException; 014 import railo.runtime.functions.BIF; 015 import railo.runtime.op.Caster; 016 import railo.runtime.type.Array; 017 import railo.runtime.type.Closure; 018 import railo.runtime.type.UDF; 019 import railo.runtime.type.util.ArrayUtil; 020 021 public final class ArraySort extends BIF { 022 023 private static final long serialVersionUID = -747941236369495141L; 024 025 public static boolean call(PageContext pc , Array array, Object sortTypeOrClosure) throws PageException { 026 return call(pc , array, sortTypeOrClosure, "asc",false); 027 } 028 public static boolean call(PageContext pc , Array array, Object sortTypeOrClosure, String sortorder) throws PageException { 029 return call(pc , array, sortTypeOrClosure, sortorder,false); 030 } 031 032 public static boolean call(PageContext pc , Array array, Object sortTypeOrClosure, String sortorder, boolean localeSensitive) throws PageException { 033 if(array.getDimension()>1) 034 throw new ExpressionException("only 1 dimensional arrays can be sorted"); 035 036 if(sortTypeOrClosure instanceof UDF){ 037 UDFComparator comp=new UDFComparator(pc, (UDF)sortTypeOrClosure); 038 array.sort(comp); 039 } 040 else { 041 array.sort(ArrayUtil.toComparator(pc,Caster.toString(sortTypeOrClosure), sortorder,localeSensitive)); 042 } 043 return true; 044 } 045 046 @Override 047 public Object invoke(PageContext pc, Object[] args) throws PageException { 048 if(args.length==2)return call(pc,Caster.toArray(args[0]),args[1]); 049 if(args.length==3)return call(pc,Caster.toArray(args[0]),args[1],Caster.toString(args[2])); 050 return call(pc,Caster.toArray(args[0]),args[1],Caster.toString(args[2]),Caster.toBooleanValue(args[3])); 051 } 052 } 053 054 class UDFComparator implements Comparator<Object> { 055 056 private UDF udf; 057 private Object[] args=new Object[2]; 058 private PageContext pc; 059 060 public UDFComparator(PageContext pc,UDF udf){ 061 this.pc=pc; 062 this.udf=udf; 063 } 064 065 @Override 066 public int compare(Object oLeft, Object oRight) { 067 try { 068 args[0]=oLeft; 069 args[1]=oRight; 070 Object res = udf.call(pc, args, false); 071 Integer i = Caster.toInteger(res,null); 072 if(i==null) throw new FunctionException(pc,"ArraySort",2,"function","return value of the "+(udf instanceof Closure?"closure":"function ["+udf.getFunctionName()+"]")+" cannot be casted to a integer.",CasterException.createMessage(res, "integer")); 073 return i.intValue(); 074 } 075 catch (PageException pe) { 076 throw new PageRuntimeException(pe); 077 } 078 } 079 080 }