HostListHolder.java

HostListHolder hostListHolder = HostListHolder.getInstance();
    Collection<String> hostList = hostListHolder.getHostList(HostListHolder.PRODUCTION);
    if (hostList.size() > 0) {
        addKeys(keys, hostList);
 
        Result<List<DataEntry>> result = tairManager.mget(NAMESPACE, keys);
        if ((ResultCode.PARTSUCC.equals(result.getRc()) || ResultCode.SUCCESS.equals(result.getRc()))
                && null != result.getValue()) {
            doMerge(result.getValue(), unsortedHashmap);
        }
        else {
            // 尝试daily环境
            hostList = hostListHolder.getHostList(HostListHolder.DAILY);
            addKeys(keys, hostList);
 
            Result<List<DataEntry>> dailyResult = tairManager.mget(NAMESPACE, keys);
            if ((ResultCode.PARTSUCC.equals(dailyResult.getRc()) || ResultCode.SUCCESS.equals(dailyResult.getRc()))
                    && null != result.getValue()) {
                doMerge(dailyResult.getValue(), unsortedHashmap);
            }
        }
    }
 
    Map.Entry[] sortedHashTable = getSortedHashtableByValue(unsortedHashmap);
 
    private void doMerge(List entryList,
        Map unsortedHashmap) {
        for(DataEntry de: entryList){
            Map top10Maper = new HashMap();
            String top10 = (String) de.getValue();
            String[] top10Items = StringUtils.split(top10, ';');
            for (int idx = 0; idx < top10Items.length; idx ++) {                     String[] itemKV = StringUtils.split(top10Items[idx],':');                   long itemId = Long.parseLong(itemKV[0]);                    int counter = Integer.parseInt(itemKV[1]);                  Integer amount = top10Maper.get(itemId);                    if (amount == null || counter > amount) {
                    top10Maper.put(itemId, counter);
                }
            }
            unsortedHashmap.putAll(top10Maper);
        }
}