001    package railo.runtime.functions.image;
002    
003    import java.util.Iterator;
004    import java.util.List;
005    import java.util.Map;
006    import java.util.Map.Entry;
007    
008    import railo.runtime.PageContext;
009    import railo.runtime.exp.PageException;
010    import railo.runtime.img.Image;
011    import railo.runtime.op.Caster;
012    import railo.runtime.type.Struct;
013    import railo.runtime.type.StructImpl;
014    
015    public class ImageGetEXIFMetadata {
016    
017            public static Struct call(PageContext pc, Object name) throws PageException {
018                    if(name instanceof String) name=pc.getVariable(Caster.toString(name));
019                    Image img = Image.toImage(name);
020                    return getData(img);
021            }
022    
023            public static Struct getData(Image img) throws PageException {
024                    Struct sct = img.info(),data=new StructImpl();
025                    Iterator it = sct.entrySet().iterator();
026                    Map.Entry entry;
027                    while(it.hasNext()){
028                            entry=(Entry) it.next();
029                            if(entry.getValue() instanceof Map) 
030                                    fill(data,(Map)entry.getValue());
031                            else if(entry.getValue() instanceof List) 
032                                    fill(data,entry.getKey(),(List)entry.getValue());
033                            else
034                                    data.put(entry.getKey(),entry.getValue());
035                    }
036                    
037                    return data;
038            }
039    
040            private static void fill(Struct data, Map map) throws PageException {
041                    Iterator it = map.entrySet().iterator();
042                    Map.Entry entry;
043                    while(it.hasNext()){
044                            entry=(Entry) it.next();
045                            if(entry.getValue() instanceof Map) 
046                                    fill(data,(Map)entry.getValue());
047                            else if(entry.getValue() instanceof List) 
048                                    fill(data,entry.getKey(),(List)entry.getValue());
049                            else
050                                    data.put(entry.getKey(),entry.getValue());
051                    }
052            }
053    
054            private static void fill(Struct data, Object key, List list) throws PageException {
055                    data.put(
056                                    key,
057                                    railo.runtime.type.util.ListUtil.listToList(list, ","));
058            }
059    }