Merge pull request #2829 from memorylorry/add-presto-support-20180927

add presto支持

src/main/java/com/alibaba/druid/util/JdbcConstants.java

@@ -109,6 +109,7 @@ public interface JdbcConstants {
     String ALIYUN_DRDS                = "aliyun_drds";
 
     String PRESTO                     = "presto";
+    String PRESTO_DRIVER              = "com.facebook.presto.jdbc.PrestoDriver";
 
     String ELASTIC_SEARCH             = "elastic_search";
     

src/main/java/com/alibaba/druid/util/JdbcUtils.java

@@ -470,7 +470,9 @@ public final class JdbcUtils implements JdbcConstants {
             return JdbcConstants.ELASTIC_SEARCH_DRIVER;
         } else if (rawUrl.startsWith("jdbc:clickhouse:")) {
             return JdbcConstants.CLICKHOUSE_DRIVER;
-        } else {
+        } else if(rawUrl.startsWith("jdbc:presto:")) {
+            return JdbcConstants.PRESTO_DRIVER;
+        }else {
             throw new SQLException("unkow jdbc driver : " + rawUrl);
         }
     }
@@ -563,6 +565,8 @@ public final class JdbcUtils implements JdbcConstants {
             return ELASTIC_SEARCH;
         } else if (rawUrl.startsWith("jdbc:clickhouse:")) {
             return CLICKHOUSE;
+        }else if (rawUrl.startsWith("jdbc:presto:")) {
+            return PRESTO;
         } else {
             return null;
         }

src/main/java/com/alibaba/druid/wall/WallFilter.java

@@ -124,7 +124,8 @@ public class WallFilter extends FilterAdapter implements WallFilterMBean {
 
         if (JdbcUtils.MYSQL.equals(dbType) || //
             JdbcUtils.MARIADB.equals(dbType) || //
-            JdbcUtils.H2.equals(dbType)) {
+            JdbcUtils.H2.equals(dbType)||
+            JdbcUtils.PRESTO.equals(dbType)) {
             if (config == null) {
                 config = new WallConfig(MySqlWallProvider.DEFAULT_CONFIG_DIR);
             }