Hi,
I am trying to harvest the data that is stored in the DSpace through a
java program. I am having a problems, the code that i wrote does work
i tried to debug and I found that the listIdentifier() method is
returning null value.
To my knowledge I think the code I wrote couldn't find where the
dspace is or i should need to add some stuff to make it work but i
dont understand how. I dont understand few methods at all
1.DSpaceOAICatalog(java.util.Properties properties) : I dont
understand what goes in the properties param.
2.java.lang.String createMetadata(java.lang.Object nativeItem) : I
dont understand this method atall..do i have to use this method on
order to harvest and what does the nativemethod take. I have read the
documentation but nothing is give about crosswalk.
I dont know whether i am
missing something. please help me if you could.
sample code that I wrote which doesn't work, please help me how to
proceed further, i am not using any servlets or jsp, it a standalone
java program:
public void harvest(){
try{
Context context=new Context();
DSpaceOAICatalog oai=null;
Map map=new HashMap();
map=oai.listIdentifiers("2007-02-07T16:32:37Z","2007-03-07T16:32:37Z",
null,null);
if(map!=null){
Set set=map.entrySet();
Iterator i=set.iterator();
while(i.hasNext()){
Map.Entry me=(Map.Entry)i.next();
System.out.println(me.getKey()+":" +me.getValue());
}
}
System.out.println("success");
} catch(Exception e){
e.printStackTrace();
}
}
Your help is highly appreciated..
thanking you
Krishna
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