Exemple de journalisation Ehcache
Ehcache estusing SLF4j logging, pour consigner les choses, placez une implémentation de slf4j dans le chemin de classe du projet, dans cet exemple, nous utilisons logback.
Les outils utilisés :
-
Ehcache 2.9
-
Maven 3
-
logback 1.0.13
1. Structure du répertoire du projet
2. Dépendances du projet
pom.xml
net.sf.ehcache ehcache 2.9.0 ch.qos.logback logback-classic 1.0.13
3. Logback.xml
Créez un fichierlogback.xml et placez-le dans le dossiersrc/main/resources.
logback.xml
//Log everything to console %d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
4. Enregistrement
Un exemple simple de Java Ehcache.
HelloEhCache.java
package com.example.cache;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HelloEhCache{
private final static Logger logger = LoggerFactory.getLogger(HelloEhCache.class);
public static void main(String[] args) {
logger.debug("Starting Ehcache...");
CacheManager cm = CacheManager.getInstance();
cm.addCache("cache1");
Cache cache = cm.getCache("cache1");
cache.put(new Element("1","Jan"));
cache.put(new Element("2","Feb"));
cache.put(new Element("3","Mar"));
logger.debug("cache : {}", cache);
Element ele = cache.get("2");
String output = (ele == null ? null : ele.getObjectValue().toString());
System.out.println(output);
logger.debug("element : {}", ele);
cm.shutdown();
logger.debug("Shutting down Ehcache...");
}
}
Sortie
2015-01-20 07:35:13 [main] DEBUG com.example.cache.HelloEhCache - Starting Ehcache... 2015-01-20 07:35:14 [main] DEBUG com.example.cache.HelloEhCache - cache : [ name = cache1 status = STATUS_ALIVE eternal = false overflowToDisk = true maxEntriesLocalHeap = 10000 maxEntriesLocalDisk = 10000000 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 persistence = LOCALTEMPSWAP diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: ; orderedCacheEventListeners: maxBytesLocalHeap = 0 overflowToOffHeap = false maxBytesLocalOffHeap = 0 maxBytesLocalDisk = 0 pinned = false ] Feb 2015-01-20 07:35:14 [main] DEBUG com.example.cache.HelloEhCache - element : [ key = 2, value=Feb, version=1, hitCount=1, CreationTime = 1421710514063, LastAccessTime = 1421710514063 ] 2015-01-20 07:35:14 [main] DEBUG com.example.cache.HelloEhCache - Shutting down Ehcache...
Passé en mode de débogage total:
logback.xml
Sortie
07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy] 07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml] 07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/C:/Users/example/workspace2/JavaCache/target/classes/logback.xml] 07:34:38,939 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set 07:34:38,939 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender] 07:34:38,955 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT] 07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - This appender no longer admits a layout as a sub-component, set an encoder instead. 07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - To ensure compatibility, wrapping your layout in LayoutWrappingEncoder. 07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - See also http://logback.qos.ch/codes.html#layoutInsteadOfEncoder for details 07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.example.cache] to DEBUG 07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting additivity of logger [com.example.cache] to false 07:34:39,001 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[com.example.cache] 07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to DEBUG 07:34:39,001 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT] 07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration. 07:34:39,001 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@6ede1f90 - Registering current configuration as safe fallback point 2015-01-20 07:34:39 [main] DEBUG com.example.cache.HelloEhCache - Starting Ehcache... 2015-01-20 07:34:39 [main] WARN n.s.e.config.ConfigurationFactory - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/G:/maven/repo/net/sf/ehcache/ehcache/2.9.0/ehcache-2.9.0.jar!/ehcache-failsafe.xml 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationFactory - Configuring ehcache from URL: jar:file:/G:/maven/repo/net/sf/ehcache/ehcache/2.9.0/ehcache-2.9.0.jar!/ehcache-failsafe.xml 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationFactory - Configuring ehcache from InputStream 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.config.BeanHandler - Ignoring ehcache attribute xmlns:xsi 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.config.BeanHandler - Ignoring ehcache attribute xsi:noNamespaceSchemaLocation 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.DiskStoreConfiguration - Disk Store Path: C:\Users\example\AppData\Local\Temp\ 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.CacheManager - Creating new CacheManager with default config 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.util.PropertyUtil - propertiesString is null. 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - No CacheManagerEventListenerFactory class specified. Skipping... 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - No BootstrapCacheLoaderFactory class specified. Skipping... 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - CacheWriter factory not configured. Skipping... 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - No CacheExceptionHandlerFactory class specified. Skipping... 2015-01-20 07:34:39 [main] WARN net.sf.ehcache.DiskStorePathManager - diskStorePath 'C:\Users\example\AppData\Local\Temp' is already used by an existing CacheManager either in the same VM or in a different process. The diskStore path for this CacheManager will be set to C:\Users\example\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore. To avoid this warning consider using the CacheManager factory methods to create a singleton CacheManager or specifying a separate ehcache configuration (ehcache.xml) for each CacheManager instance. 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Using diskstore path C:\Users\example\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Holding exclusive lock on C:\Users\example\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore\.ehcache-diskstore.lock 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.data 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Matching data file missing (or empty) for index file. Deleting index file C:\Users\example\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore\cache1.index 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LOCAL_OFFHEAP_SIZE 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LOCAL_OFFHEAP_SIZE_BYTES 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: WRITER_QUEUE_LENGTH 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: REMOTE_SIZE 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LAST_REJOIN_TIMESTAMP 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_GET 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_PUT 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_REMOVE 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_COMMIT 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_ROLLBACK 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_RECOVERY 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: CLUSTER_EVENT 2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: NONSTOP 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - Initialised cache: cache1 2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - CacheDecoratorFactory not configured for defaultCache. Skipping for 'cache1'. 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap 2015-01-20 07:34:39 [main] DEBUG com.example.cache.HelloEhCache - cache : [ name = cache1 status = STATUS_ALIVE eternal = false overflowToDisk = true maxEntriesLocalHeap = 10000 maxEntriesLocalDisk = 10000000 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 persistence = LOCALTEMPSWAP diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: ; orderedCacheEventListeners: maxBytesLocalHeap = 0 overflowToOffHeap = false maxBytesLocalOffHeap = 0 maxBytesLocalDisk = 0 pinned = false ] Feb 2015-01-20 07:34:39 [main] DEBUG com.example.cache.HelloEhCache - element : [ key = 2, value=Feb, version=1, hitCount=1, CreationTime = 1421710479220, LastAccessTime = 1421710479220 ] 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap 2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index 2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.data 2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Deleted directory ehcache_auto_created8095047663436693875diskstore 2015-01-20 07:34:39 [main] DEBUG com.example.cache.HelloEhCache - Shutting down Ehcache...
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Téléchargez-le -Java-Ehcache-logging.zip (9 Ko)