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/project이름/src/main/java/test/cmm/util/RefreshableSqlSessionFactoryBean.java
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package test.cmm.util;
import java.io.IOException;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.core.io.Resource;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/* mybatis mapper 자동 감지 후 자동으로 서버 재시작이 필요 없이 반영 */
public class RefreshableSqlSessionFactoryBean extends SqlSessionFactoryBean implements DisposableBean {
private static final Log log = LogFactory.getLog(RefreshableSqlSessionFactoryBean.class);
private SqlSessionFactory proxy;
private int interval = 500;
private Timer timer;
private TimerTask task;
private Resource[] mapperLocations;
/** * 파일 감시 쓰레드가 실행중인지 여부. */
private boolean running = false;
private final ReentrantReadWriteLock rwl = new ReentrantReadWriteLock();
private final Lock r = rwl.readLock();
private final Lock w = rwl.writeLock();
public void setMapperLocations(Resource[] mapperLocations) {
super.setMapperLocations(mapperLocations);
this.mapperLocations = mapperLocations;
}
public void setInterval(int interval) {
this.interval = interval;
}
/** * @throws Exception */
public void refresh() throws Exception {
if (log.isInfoEnabled()) {
log.info("refreshing sqlMapClient.");
}
w.lock();
try {
super.afterPropertiesSet();
} finally {
w.unlock();
}
}
/** * 싱글톤 멤버로 SqlMapClient 원본 대신 프록시로 설정하도록 오버라이드. */
public void afterPropertiesSet() throws Exception { super.afterPropertiesSet(); setRefreshable(); }
private void setRefreshable() {
proxy = (SqlSessionFactory) Proxy.newProxyInstance(SqlSessionFactory.class.getClassLoader(),
new Class[] { SqlSessionFactory.class }, new InvocationHandler() {
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
// log.debug("method.getName() : " + method.getName());
return method.invoke(getParentObject(), args);
}
});
task = new TimerTask() {
private Map<Resource, Long> map = new HashMap<Resource, Long>();
public void run() {
if (isModified()) {
try {
refresh();
} catch (Exception e) {
log.error("caught exception", e);
}
}
}
private boolean isModified() {
boolean retVal = false;
if (mapperLocations != null) {
for (int i = 0; i < mapperLocations.length; i++) {
Resource mappingLocation = mapperLocations[i];
retVal |= findModifiedResource(mappingLocation);
}
}
return retVal;
}
private boolean findModifiedResource(Resource resource) {
boolean retVal = false;
List<String> modifiedResources = new ArrayList<String>();
try {
long modified = resource.lastModified();
if (map.containsKey(resource)) {
long lastModified = ((Long) map.get(resource)).longValue();
if (lastModified != modified) {
map.put(resource, new Long(modified));
modifiedResources.add(resource.getDescription());
retVal = true;
}
} else {
map.put(resource, new Long(modified));
}
} catch (IOException e) {
log.error("caught exception", e);
}
if (retVal) {
if (log.isInfoEnabled()) {
log.info("modified files : " + modifiedResources);
}
}
return retVal;
}
};
timer = new Timer(true);
resetInterval();
}
private Object getParentObject() throws Exception {
r.lock();
try {
return super.getObject();
} finally {
r.unlock();
}
}
public SqlSessionFactory getObject() {
return this.proxy;
}
public Class<? extends SqlSessionFactory> getObjectType() {
return (this.proxy != null ? this.proxy.getClass() : SqlSessionFactory.class);
}
public boolean isSingleton() {
return true;
}
public void setCheckInterval(int ms) {
interval = ms;
if (timer != null) {
resetInterval();
}
}
private void resetInterval() {
if (running) {
timer.cancel();
running = false;
}
if (interval > 0) {
timer.schedule(task, 0, interval);
running = true;
}
}
public void destroy() throws Exception {
timer.cancel();
}
}
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@
#
/test/src/main/resources/egovframework/spring/com/context-mapper.xml
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
<!-- 실행환경에서 빈이름 참조(EgovAbstractDAO) -->
<bean id="egov.lobHandler" class="org.springframework.jdbc.support.lob.DefaultLobHandler" lazy-init="true" />
<!-- Mybatis setup for Mybatis Database Layer -->
<!--20210908 주석 S -->
<!-- <bean id="egov.sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean"> -->
<!--20210908 주석 E -->
<!--20210908 추가 S -->
<!-- <property name="interval" value="1000" /> -->
<!--20210908 추가 E -->
<bean id="egov.sqlSession" class="test.cmm.util.RefreshableSqlSessionFactoryBean">
<property name="dataSource" ref="egov.dataSource" />
<property name="configLocation" value="classpath:/egovframework/mapper/config/mapper-config.xml" />
<property name="interval" value="1000" />
<property name="mapperLocations">
<list>
<value>classpath:/egovframework/mapper/test/**/*_SQL.xml</value>
</list>
</property>
</bean>
<!-- Mybatis Session Template -->
<bean id="egov.sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg ref="egov.sqlSession"/>
</bean>
</beans>
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#
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