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vikas |
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/**
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*
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*/
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package in.shop2020.serving.controllers;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import net.sf.ehcache.Cache;
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import net.sf.ehcache.CacheManager;
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import net.sf.ehcache.Statistics;
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import org.apache.log4j.Logger;
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import org.apache.struts2.convention.annotation.InterceptorRef;
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import org.apache.struts2.convention.annotation.InterceptorRefs;
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/**
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* @author vikas
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*
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*/
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@InterceptorRefs({
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@InterceptorRef("defaultStack")
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})
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public class CacheAdminController {
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private static final long serialVersionUID = -6730428402950686583L;
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public static final String NAME_KEY = "name";
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public static final String DISK_STORE_KEY = "disk_store_size";
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public static final String EVICTION_POLICY_KEY = "eviction_policy";
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public static final String MEMORY_STORE_KEY = "memory_store_size";
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public static final String OFF_HEAP_STORE_KEY = "off_heap_store_size";
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public static final String SEARCHES_PER_SEC_KEY = "searches_per_second";
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public static final String STATUS_KEY = "status";
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public static final String AVG_GET_TIME_KEY = "avg_get_time";
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public static final String AVG_SEARCH_TIME_KEY = "avg_search_time";
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public static final String CACHE_HITS_KEY = "cache_hits";
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public static final String CACHE_MISSES_KEY = "cache_misses";
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public static final String EVICTION_COUNT_KEY = "eviction_count";
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private static Logger log = Logger.getLogger(CacheAdminController.class);
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private List<Map<String, String>> cacheStats;
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private String cacheName;
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public String index() {
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CacheManager cacheManager = CacheManager.create();
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String[] cacheNames = cacheManager.getCacheNames();
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cacheStats = new ArrayList<Map<String,String>>();
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for (String cacheName : cacheNames) {
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Map<String, String> cacheStat = new HashMap<String, String>();
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Cache cache = cacheManager.getCache(cacheName);
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cacheStat.put(NAME_KEY, cache.getName());
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cacheStat.put(EVICTION_POLICY_KEY, cache.getMemoryStoreEvictionPolicy().getName());
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cacheStat.put(MEMORY_STORE_KEY, Long.toString(cache.getMemoryStoreSize()));
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cacheStat.put(OFF_HEAP_STORE_KEY, Long.toString(cache.getOffHeapStoreSize()));
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cacheStat.put(DISK_STORE_KEY, Integer.toString(cache.getDiskStoreSize()));
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cacheStat.put(SEARCHES_PER_SEC_KEY, Long.toString(cache.getSearchesPerSecond()));
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cacheStat.put(STATUS_KEY, cache.getStatus().toString());
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Statistics stat = cache.getStatistics();
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cacheStat.put(AVG_GET_TIME_KEY, Float.toString(stat.getAverageGetTime()));
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cacheStat.put(AVG_SEARCH_TIME_KEY, Float.toString(stat.getAverageSearchTime()));
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cacheStat.put(CACHE_HITS_KEY, Long.toString(stat.getCacheHits()));
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cacheStat.put(CACHE_MISSES_KEY, Long.toString(stat.getCacheMisses()));
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cacheStat.put(EVICTION_COUNT_KEY, Long.toString(stat.getEvictionCount()));
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cacheStats.add(cacheStat);
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log.info(stat);
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}
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return "index";
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}
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public void destroy() {
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CacheManager cacheManager = CacheManager.create();
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for (String name : cacheManager.getCacheNames()) {
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if (name.equals(cacheName)) {
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cacheManager.getCache(name).removeAll();
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}
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}
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}
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public List<Map<String, String>> getCacheStats() {
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return cacheStats;
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}
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public void setId(String name) {
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cacheName = name;
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}
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}
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