JMX增强

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@674 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -88,6 +88,20 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
 
     public DruidDataSource(){
     }
+    
+    public void resetStat() {
+        lock.lock();
+        try {
+            connectCount = 0;
+            closeCount = 0;
+            connectErrorCount = 0;
+            recycleCount = 0;
+            createConnectionCount = 0;
+            destroyCount = 0;
+        } finally {
+            lock.unlock();
+        }
+    }
 
     public boolean isEnable() {
         return enable;

src/main/java/com/alibaba/druid/pool/DruidDataSourceMBean.java

@@ -29,4 +29,6 @@ public interface DruidDataSourceMBean extends DruidAbstractDataSourceMBean {
     int getWaitThreadCount();
     
     int getLockQueueLength();
+    
+    void resetStat();
 }

src/main/java/com/alibaba/druid/stat/DruidDataSourceStatManager.java

@@ -40,6 +40,13 @@ public class DruidDataSourceStatManager implements DruidDataSourceStatManagerMBe
         return instances.keySet();
     }
 
+    public void reset() {
+        final Set<DruidDataSource> dataSources = getDruidDataSourceInstances();
+        for (DruidDataSource dataSource : dataSources) {
+            dataSource.resetStat();
+        }
+    }
+
     public TabularData getDataSourceList() throws JMException {
         CompositeType rowType = getDruidDataSourceCompositeType();
         String[] indexNames = rowType.keySet().toArray(new String[rowType.keySet().size()]);

src/main/java/com/alibaba/druid/stat/DruidDataSourceStatManagerMBean.java

@@ -5,5 +5,7 @@ import javax.management.openmbean.TabularData;
 
 public interface DruidDataSourceStatManagerMBean {
 
+    void reset();
+
     TabularData getDataSourceList() throws JMException;
 }