support sharePreparedStatements option

src/test/java/com/alibaba/druid/bvt/pool/TestSharePreparedStatements.java

@@ -0,0 +1,91 @@
+package com.alibaba.druid.bvt.pool;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.mock.MockPreparedStatement;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.stat.DruidDataSourceStatManager;
+
+public class TestSharePreparedStatements extends TestCase {
+
+    protected void setUp() throws Exception {
+        Assert.assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
+    }
+
+    protected void tearDown() throws Exception {
+        Assert.assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
+    }
+
+    public void test_sharePreparedStatements() throws Exception {
+
+        // sharePreparedStatements
+
+        DruidDataSource dataSource = new DruidDataSource();
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setMaxPoolPreparedStatementPerConnectionSize(30);
+
+        String sql = "SELECT 1";
+
+        MockPreparedStatement mockStmt = null;
+        {
+            Connection conn = dataSource.getConnection();
+
+            PreparedStatement stmt = conn.prepareStatement(sql);
+            mockStmt = stmt.unwrap(MockPreparedStatement.class);
+            ResultSet rs = stmt.executeQuery();
+            rs.next();
+            rs.close();
+            stmt.close();
+
+            conn.close();
+        }
+        
+        {
+            Connection conn = dataSource.getConnection();
+
+            PreparedStatement stmt = conn.prepareStatement(sql);
+            Assert.assertEquals(mockStmt, stmt.unwrap(MockPreparedStatement.class));
+            ResultSet rs = stmt.executeQuery();
+            rs.next();
+            rs.close();
+            stmt.close();
+
+            conn.close();
+        }
+
+        {
+            Connection conn = dataSource.getConnection();
+            conn.setAutoCommit(false);
+
+            PreparedStatement stmt = conn.prepareStatement(sql);
+            Assert.assertEquals(true, mockStmt != stmt.unwrap(MockPreparedStatement.class));
+            ResultSet rs = stmt.executeQuery();
+            rs.next();
+            rs.close();
+            stmt.close();
+
+            conn.close();
+        }
+        
+        {
+            Connection conn = dataSource.getConnection();
+            conn.setAutoCommit(false);
+            
+            PreparedStatement stmt = conn.prepareStatement(sql);
+            Assert.assertEquals(true, mockStmt != stmt.unwrap(MockPreparedStatement.class));
+            ResultSet rs = stmt.executeQuery();
+            rs.next();
+            rs.close();
+            stmt.close();
+            
+            conn.close();
+        }
+
+        dataSource.close();
+    }
+}

src/test/java/com/alibaba/druid/sql/parser/PerfTest.java

@@ -19,8 +19,8 @@ public class PerfTest extends TestCase {
     public void test_perf() throws Exception {
         for (int i = 0; i < 10; ++i) {
             // perf("SELECT * FROM my_table WHERE TRUNC(SYSDATE) = DATE '2002-10-03';");
-            perfOracle("SELECT * FROM T");
-            perfMySql("SELECT * FROM T");
+            perfOracle("SELECT a.ID, a.GMT_CREATE, a.GMT_MODIFIED, a.COMPANY_NAME, a.BIZ_TYPE , b.SERVICE_TYPE, b.SERVICE_LEVEL, b.BUSINESS_ROLE, a.STATUS, a.RECOMMENDED , a.COUNTRY, a.PROVINCE, a.CITY, a.ADDRESS, a.ZIP , a.LOGO_FILE, a.EMAIL, a.BRIEF_PROFILE, a.DOMAIN_ID, a.IS_PASS_AV , a.KEYWORDS, a.PROVIDE_PRODUCTS, a.PURCHASE_PRODUCTS, a.BRAND_NAME, a.PROMOTION_VALUE , a.OWNER_MEMBER_ID, a.OWNER_SEQ, a.EMPLOYEES_COUNT, a.ANNUAL_REVENUE, a.HOMEPAGE_URL , a.REG_ADDRESS, a.TRADE_REGION, a.TRADE_REGION_USER, a.REG_CAPITAL, a.OWNERSHIP_TYPE , a.ESTABLISHED_YEAR, a.PRINCIPAL, a.ANNUAL_PURCHASE, a.CERTIFICATION, a.CERTIFICATION_2 , a.CONTACT_MANUFACTURING, a.YEARS_OEM, b.STAGE, a.VIDEO_PATH, a.ABOUTUS_IMAGE_PATH , a.ABOUTUS_IMAGE_TITLE, a.CHINESE_NAME, a.IMAGE_VERSION FROM COMPANY a, VACCOUNT b WHERE a.ID = b.ID AND a.id IN (?)");
+            perfMySql("SELECT a.ID, a.GMT_CREATE, a.GMT_MODIFIED, a.COMPANY_NAME, a.BIZ_TYPE , b.SERVICE_TYPE, b.SERVICE_LEVEL, b.BUSINESS_ROLE, a.STATUS, a.RECOMMENDED , a.COUNTRY, a.PROVINCE, a.CITY, a.ADDRESS, a.ZIP , a.LOGO_FILE, a.EMAIL, a.BRIEF_PROFILE, a.DOMAIN_ID, a.IS_PASS_AV , a.KEYWORDS, a.PROVIDE_PRODUCTS, a.PURCHASE_PRODUCTS, a.BRAND_NAME, a.PROMOTION_VALUE , a.OWNER_MEMBER_ID, a.OWNER_SEQ, a.EMPLOYEES_COUNT, a.ANNUAL_REVENUE, a.HOMEPAGE_URL , a.REG_ADDRESS, a.TRADE_REGION, a.TRADE_REGION_USER, a.REG_CAPITAL, a.OWNERSHIP_TYPE , a.ESTABLISHED_YEAR, a.PRINCIPAL, a.ANNUAL_PURCHASE, a.CERTIFICATION, a.CERTIFICATION_2 , a.CONTACT_MANUFACTURING, a.YEARS_OEM, b.STAGE, a.VIDEO_PATH, a.ABOUTUS_IMAGE_PATH , a.ABOUTUS_IMAGE_TITLE, a.CHINESE_NAME, a.IMAGE_VERSION FROM COMPANY a, VACCOUNT b WHERE a.ID = b.ID AND a.id IN (?)");
             // perf(loadSql("bvt/parser/oracle-23.txt"));
         }
     }