package com.jeecms.common.web;
import java.io.IOException;
import net.sf.ehcache.CacheException;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.ObjectExistsException;
import net.sf.ehcache.config.Configuration;
import net.sf.ehcache.config.ConfigurationFactory;
import net.sf.ehcache.config.DiskStoreConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.io.Resource;
/**
* 用于Web的EhCacheManagerFacotryBean。可以基于Web根目录指定diskStore地址。
*
* @author liufang
*
*/
public class WebEhCacheManagerFacotryBean implements FactoryBean<CacheManager>,
InitializingBean, DisposableBean {
private final Logger log = LoggerFactory
.getLogger(WebEhCacheManagerFacotryBean.class);
private Resource configLocation;
private Resource diskStoreLocation;
private String cacheManagerName;
private CacheManager cacheManager;
/**
* Set the location of the EHCache config file. A typical value is
* "/WEB-INF/ehcache.xml".
* <p>
* Default is "ehcache.xml" in the root of the class path, or if not found,
* "ehcache-failsafe.xml" in the EHCache jar (default EHCache
* initialization).
*
* @see net.sf.ehcache.CacheManager#create(java.io.InputStream)
* @see net.sf.ehcache.CacheManager#CacheManager(java.io.InputStream)
*/
public void setConfigLocation(Resource configLocation) {
this.configLocation = configLocation;
}
/**
* 设置ehcahce的diskStore path，例如：/WEB-INF/cache
*
* 如设置了此项，则在ehcache配置文件中不要配置<diskStore path=""/>，否则本设置无效。
*
* @param diskStoreLocation
*/
public void setdiskStoreLocation(Resource diskStoreLocation) {
this.diskStoreLocation = diskStoreLocation;
}
/**
* Set the name of the EHCache CacheManager (if a specific name is desired).
*
* @see net.sf.ehcache.CacheManager#setName(String)
*/
public void setCacheManagerName(String cacheManagerName) {
this.cacheManagerName = cacheManagerName;
}
public void afterPropertiesSet() throws IOException, CacheException {
log.info("Initializing EHCache CacheManager");
Configuration config = null;
if (this.configLocation != null) {
config = ConfigurationFactory
.parseConfiguration(this.configLocation.getInputStream());
if (this.diskStoreLocation != null) {
DiskStoreConfiguration dc = new DiskStoreConfiguration();
dc.setPath(this.diskStoreLocation.getFile().getAbsolutePath());
try {
config.addDiskStore(dc);
} catch (ObjectExistsException e) {
log.warn("if you want to config distStore in spring,"
+ " please remove diskStore in config file!", e);
}
}
}
if (config != null) {
this.cacheManager = new CacheManager(config);
} else {
this.cacheManager = new CacheManager();
}
if (this.cacheManagerName != null) {
this.cacheManager.setName(this.cacheManagerName);
}
}
public CacheManager getObject() {
return this.cacheManager;
}
public Class<? extends CacheManager> getObjectType() {
return (this.cacheManager != null ? this.cacheManager.getClass()
: CacheManager.class);
}
public boolean isSingleton() {
return true;
}
public void destroy() {
log.info("Shutting down EHCache CacheManager");
this.cacheManager.shutdown();
}
}