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Code Issues Releases Wiki Activity

支持HA

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git-svn-id: http://code.alibabatech.com/svn/druid/trunk@466 b9813039-fb51-4c41-a8b9-e21c2acb5095
This commit is contained in:
wenshao
2011-07-17 09:40:41 +00:00
parent 0614f22b42
commit f9fabd8801
3 changed files with 14 additions and 6 deletions
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src/main/java/com/alibaba/druid/pool/ha/HADataSource.java
+12 -4
View File
@@ -20,11 +20,11 @@ public class HADataSource extends MultiDataSource implements DataSource {
private final AtomicInteger indexErrorCount = new AtomicInteger();
protected ArrayList<DruidDataSource> dataSources;
protected ArrayList<DruidDataSource> dataSources = new ArrayList<DruidDataSource>();
protected final List<DruidDataSource> notAvailableDatasources = new CopyOnWriteArrayList<DruidDataSource>();
public HADataSource(){
dataSources = new ArrayList<DruidDataSource>();
}
public List<DruidDataSource> getDataSources() {
@@ -40,7 +40,15 @@ public class HADataSource extends MultiDataSource implements DataSource {
return new MultiDataSourceConnection(this, createConnectionId());
}
public Connection getConnectionInternal(int connectionId, String sql) throws SQLException {
protected int indexFor(MultiDataSourceConnection multiDataSourceConnection, String sql) {
int size = dataSources.size();
int connectionId = (int) multiDataSourceConnection.getId();
return connectionId % size;
}
public Connection getConnectionInternal(MultiDataSourceConnection multiDataSourceConnection, String sql) throws SQLException {
int tryCount = 0;
for (;;) {
@@ -50,7 +58,7 @@ public class HADataSource extends MultiDataSource implements DataSource {
throw new SQLException("can not get connection, no availabe datasources");
}
int index = connectionId % size;
int index = indexFor(multiDataSourceConnection, sql);
DruidDataSource dataSource = null;
src/main/java/com/alibaba/druid/pool/ha/MultiDataSource.java
+1 -1
View File
@@ -40,5 +40,5 @@ public abstract class MultiDataSource extends DataSourceAdapter {
@Override
public abstract Connection getConnection() throws SQLException;
public abstract Connection getConnectionInternal(int connectionId, String sql) throws SQLException;
public abstract Connection getConnectionInternal(MultiDataSourceConnection conn, String sql) throws SQLException;
}
src/main/java/com/alibaba/druid/pool/ha/MultiDataSourceConnection.java
+1 -1
View File
@@ -54,7 +54,7 @@ public class MultiDataSourceConnection extends WrapperAdapter implements Connect
public void checkConnection(String sql) throws SQLException {
if (conn == null) {
conn = haDataSource.getConnectionInternal(id, sql);
conn = haDataSource.getConnectionInternal(this, sql);
}
if (autoCommit != null) {