支持HA

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@458 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/ha/MultiDataSource.java

@@ -1,83 +1,22 @@
 package com.alibaba.druid.pool.ha;
 
-import java.io.PrintWriter;
 import java.sql.Connection;
 import java.sql.SQLException;
-import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
-
-import javax.sql.DataSource;
+import java.util.ArrayList;
 
+import com.alibaba.druid.pool.DataSourceAdapter;
 import com.alibaba.druid.pool.DruidDataSource;
 
-public abstract class MultiDataSource implements DataSource {
+public abstract class MultiDataSource extends DataSourceAdapter {
 
-    protected final List<DruidDataSource> dataSources;
+    protected ArrayList<DruidDataSource> dataSources;
 
-    private int                           loginTimeout = 0;
-    private PrintWriter                   logWriter    = new PrintWriter(System.out);
-    
-    public MultiDataSource() {
-        dataSources  = new CopyOnWriteArrayList<DruidDataSource>();
-    }
-    
-    public MultiDataSource(List<DruidDataSource> dataSources) {
-        this.dataSources  = dataSources;
-    }
-
-    public List<DruidDataSource> getDataSources() {
-        return dataSources;
+    public MultiDataSource(){
+        dataSources = new ArrayList<DruidDataSource>();
     }
 
     @Override
-    public PrintWriter getLogWriter() throws SQLException {
-        return logWriter;
-    }
-
-    @Override
-    public void setLogWriter(PrintWriter out) throws SQLException {
-        this.logWriter = out;
-    }
-
-    @Override
-    public void setLoginTimeout(int seconds) throws SQLException {
-        loginTimeout = seconds;
-    }
-
-    @Override
-    public int getLoginTimeout() throws SQLException {
-        return loginTimeout;
-    }
-
-    @Override
-    public boolean isWrapperFor(Class<?> iface) throws SQLException {
-        if (iface == null) {
-            return false;
-        }
-
-        if (iface.isInstance(this)) {
-            return true;
-        }
-
-        return false;
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    public <T> T unwrap(Class<T> iface) throws SQLException {
-        if (iface == null) {
-            return null;
-        }
-
-        if (iface.isInstance(this)) {
-            return (T) this;
-        }
-
-        return null;
-    }
-
-    @Override
-    public Connection getConnection(String username, String password) throws SQLException {
+    public Connection getConnection() throws SQLException {
         throw new UnsupportedOperationException();
     }
 }