Re: [Neo4j] Has been blocked when i get the node's property

[iamyuanlong]

The sort code is here:

//=========================================
*//create a traversal to get all user's fans*
TraversalDescription travDesc = Traversal.description()
                                        .breadthFirst()
                                        .relationships(RelationTypes.FOLLOW, 
Direction.INCOMING)
                                        .uniqueness(Uniqueness.NODE_GLOBAL)
                                        .prune(Traversal.pruneAfterDepth(1))
                                        
.filter(Traversal.returnAllButStartNode());
long t = System.currentTimeMillis();
*//make the userNodes into a array*
UserNode[] uarr =
Neo4jUserUtils.createUserNodeListFromTraverse2(travDesc.traverse(underlyingNode));
log.info("Get all fans need:" + (System.currentTimeMillis() - t));
*//return paged result*
return Neo4jUserUtils.getUserNodePageData(uarr,
page,Neo4jUserUtils.getComparator(oType));
//======================================


*//getUserNodePageData Code*
public static List<UserNode> getUserNodePageData(UserNode[] uarray,PageInfo
pg,Comparator<UserNode> comparator){
                List<UserNode> ulist=new ArrayList<UserNode>();
                pg.setTotalCount(uarray.length);
                if(comparator!=null){
                  long t=System.currentTimeMillis();
                 * Arrays.sort(uarray,comparator);*
                 System.out.println("Sort need
Time:"+(System.currentTimeMillis()-t));
                }
                if(pg.getCurrentPageStart()&lt;pg.getTotalCount()){
                        int end = ((pg.getPageSize() + 
pg.getCurrentPageStart()) &gt; pg
                                        .getTotalCount()) ? pg.getTotalCount()
                                        : (pg.getPageSize() + 
pg.getCurrentPageStart());
                        for (int i = pg.getCurrentPageStart(); i < end; i++) {
                                ulist.add(uarray[i]);
                        }
                }
                return ulist;
}

//==============================================
*//the comparator Code*
public class UserFansNumComparator implements Comparator<UserNode>{

        @Override
        public int compare(UserNode o1, UserNode o2) {
                return o2.getFansNum()-o1.getFansNum();
        }
        
}
//===============================================

*The  getFansNum method just get node property.*

public Integer getFansNum() {
                        long t=System.currentTimeMillis();
                        int f= (Integer) underlyingNode
                                        
.getProperty(UserProperties.FANSNUM_KEY,0);
                        long t2=System.currentTimeMillis()-t;
                        if(t2>1){
                                log.info("===========GetFans Need:"+t2);
                        }
                        return f;
}


Then have 100 concurrent request one User's fans order by User's fansnum.

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