关系型数据同步adapter, 支持 mysql oracle postgresql sqlserver

client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/Util.java

@@ -0,0 +1,90 @@
+package com.alibaba.otter.canal.client.adapter.support;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.function.Consumer;
+import java.util.function.Function;
+
+import javax.sql.DataSource;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Util {
+
+    private static final Logger logger = LoggerFactory.getLogger(Util.class);
+
+    /**
+     * 通过DS执行sql
+     */
+    public static Object sqlRS(DataSource ds, String sql, Function<ResultSet, Object> fun) throws SQLException {
+        Connection conn = null;
+        Statement stmt = null;
+        ResultSet rs = null;
+        try {
+            conn = ds.getConnection();
+            stmt = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
+            stmt.setFetchSize(Integer.MIN_VALUE);
+            rs = stmt.executeQuery(sql);
+            return fun.apply(rs);
+        } finally {
+            if (rs != null) {
+                try {
+                    rs.close();
+                } catch (SQLException e) {
+                    logger.error(e.getMessage(), e);
+                }
+            }
+            if (stmt != null) {
+                try {
+                    stmt.close();
+                } catch (SQLException e) {
+                    logger.error(e.getMessage(), e);
+                }
+            }
+            if (conn != null) {
+                try {
+                    conn.close();
+                } catch (SQLException e) {
+                    logger.error(e.getMessage(), e);
+                }
+            }
+        }
+    }
+
+    /**
+     * sql执行获取resultSet
+     *
+     * @param conn sql connection
+     * @param sql sql
+     * @param consumer 回调方法
+     */
+    public static void sqlRS(Connection conn, String sql, Consumer<ResultSet> consumer) {
+        Statement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = conn.createStatement();
+            rs = stmt.executeQuery(sql);
+            consumer.accept(rs);
+        } catch (SQLException e) {
+            logger.error(e.getMessage(), e);
+        } finally {
+            if (rs != null) {
+                try {
+                    rs.close();
+                } catch (SQLException e) {
+                    logger.error(e.getMessage(), e);
+                }
+            }
+            if (stmt != null) {
+                try {
+                    stmt.close();
+                } catch (SQLException e) {
+                    logger.error(e.getMessage(), e);
+                }
+            }
+        }
+    }
+}