Example usage for com.google.common.collect HashBiMap put

Introduction

In this page you can find the example usage for com.google.common.collect HashBiMap put.

Prototype

@Override
    public V put(@Nullable K key, @Nullable V value)

Source Link

Usage

From source file:org.apache.hadoop.hbase.extended.loadbalance.strategies.hotspot.HotSpotLoadBalancer.java

private double addRegionsToCompleteMap(Map<String, HRegionInfo> regionNameRegionInfoMap, ServerName serverName,
        NavigableMap<HotSpotServerAndLoad, List<HotSpotRegionLoad>> serversByLoad,
        Map<String, RegionLoad> regionalLoadMapforServer,
        HashBiMap<HRegionInfo, HotSpotRegionLoad> allRegionsLoadBiMap) {
    double loadAccumulator = 0.0;
    List<HotSpotRegionLoad> modRegionLoadList = new ArrayList<HotSpotRegionLoad>();
    boolean isHotspot = false;
    HRegionInfo regionInfo = null;//  www . jav a2s  .  c  o m
    TreeMap<HotSpotRegionLoad, HRegionInfo> regionLoadMap = new TreeMap<HotSpotRegionLoad, HRegionInfo>(
            HotSpotRegionLoad.DESC_LOAD);

    for (Map.Entry<String, RegionLoad> loadItem : regionalLoadMapforServer.entrySet()) {

        regionInfo = regionNameRegionInfoMap.get(loadItem.getKey());
        if (regionInfo == null) {
            String message = "######################## as regionInfo is null from regionNameRegionInfoMap for the region name ="
                    + loadItem.getKey()
                    + " determined from  regionNameRegionInfoMap. The rest of the balancing is useless. "
                    + "We need to return to the assignment manager.";
            LOG.warn(message);
        } else {
            HotSpotRegionLoad readHotSpotRegionLoad = getHotSpotRegionLoadInstance(loadItem, this.divideFactor);
            LOG.debug("######################## loadItem = " + loadItem + "\n readHotSpotRegionLoad= "
                    + readHotSpotRegionLoad);
            regionLoadMap.put(readHotSpotRegionLoad, regionInfo);
            loadAccumulator += readHotSpotRegionLoad.getLoad();
            LOG.debug("######################## current loadAccumulator=" + loadAccumulator);
            modRegionLoadList.add(readHotSpotRegionLoad);
            allRegionsLoadBiMap.put(regionInfo, readHotSpotRegionLoad);
        }

    }
    // iterate over regionLoadMap and find if the top x% have y% load
    isHotspot = isHotSpot(regionLoadMap, modRegionLoadList, loadAccumulator);
    HotSpotServerAndLoad msl = new HotSpotServerAndLoad(serverName, loadAccumulator, isHotspot);
    Collections.sort(modRegionLoadList, HotSpotRegionLoad.DESC_LOAD);
    serversByLoad.put(msl, modRegionLoadList);

    return loadAccumulator;

}