Prune code migrated from sdnc/core to ccsdk
[sdnc/core.git] / sli / common / src / main / java / org / openecomp / sdnc / sli / SvcLogicJdbcStore.java
diff --git a/sli/common/src/main/java/org/openecomp/sdnc/sli/SvcLogicJdbcStore.java b/sli/common/src/main/java/org/openecomp/sdnc/sli/SvcLogicJdbcStore.java
deleted file mode 100644 (file)
index b9e7f80..0000000
+++ /dev/null
@@ -1,895 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * openECOMP : SDN-C
- * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights
- *                                             reserved.
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============LICENSE_END=========================================================
- */
-
-package org.openecomp.sdnc.sli;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.sql.Blob;
-import java.sql.Connection;
-import java.sql.DatabaseMetaData;
-import java.sql.Driver;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
-import java.util.Properties;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-
-public class SvcLogicJdbcStore implements SvcLogicStore {
-       private static final Logger LOG = LoggerFactory
-                       .getLogger(SvcLogicJdbcStore.class);
-
-       private String dbUrl = null;
-       private String dbName = null;
-       private String dbUser = null;
-       private String dbPasswd = null;
-       private String dbDriver = null;
-        
-       private Connection dbConn;
-       private PreparedStatement hasActiveGraphStmt = null;
-       private PreparedStatement hasVersionGraphStmt = null;
-       private PreparedStatement fetchActiveGraphStmt = null;
-       private PreparedStatement fetchVersionGraphStmt = null;
-       private PreparedStatement storeGraphStmt = null;
-       private PreparedStatement deleteGraphStmt = null;
-       
-       private PreparedStatement deactivateStmt = null;
-       private PreparedStatement activateStmt = null;
-       
-       private PreparedStatement registerNodeStmt = null;
-       private PreparedStatement unregisterNodeStmt = null;
-       private PreparedStatement validateNodeStmt = null;
-               
-       private void getConnection() throws ConfigurationException
-       {
-
-               Properties jdbcProps = new Properties();
-               
-               jdbcProps.setProperty("user", dbUser);
-               jdbcProps.setProperty("password", dbPasswd);
-               
-               try {
-                       Driver dvr = new com.mysql.jdbc.Driver();
-                       if (dvr.acceptsURL(dbUrl))
-                       {
-                               LOG.debug("Driver com.mysql.jdbc.Driver accepts "+dbUrl);
-                       }
-                       else
-                       {
-                               LOG.warn("Driver com.mysql.jdbc.Driver does not accept "+dbUrl);
-                       }
-               } catch (SQLException e1) {
-                       LOG.error("Caught exception trying to load com.mysql.jdbc.Driver", e1);
-
-
-               }
-               
-               
-               try
-               {
-                       this.dbConn = DriverManager.getConnection(dbUrl, jdbcProps);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("failed to get database connection ["+dbUrl+"]", e);
-               }       
-               
-       }
-       
-       private void createTable() throws ConfigurationException
-       {
-
-
-               DatabaseMetaData dbm = null;
-               
-               
-               try {
-                       dbm = dbConn.getMetaData();
-               } catch (SQLException e) {
-
-                       throw new ConfigurationException("could not get databse metadata", e);
-               }
-
-               // See if table SVC_LOGIC exists.  If not, create it.
-               try
-               {
-
-
-                       ResultSet tables = dbm.getTables(null, null, "SVC_LOGIC", null);
-                       if (tables.next()) {
-                               // Table exists
-                       }
-                       else {
-
-                               String crTableCmd = "CREATE TABLE "+dbName+".SVC_LOGIC ("
-                                               + "module varchar(80) NOT NULL,"
-                                               + "rpc varchar(80) NOT NULL,"
-                                               + "version varchar(40) NOT NULL,"
-                                               + "mode varchar(5) NOT NULL,"
-                                               + "active varchar(1) NOT NULL,"
-                                               + "graph BLOB,"
-                                               + "CONSTRAINT P_SVC_LOGIC PRIMARY KEY(module, rpc, version, mode))";
-
-                               Statement stmt = null;
-                               ConfigurationException myExc = null;
-                               try
-                               {
-                                       stmt = dbConn.createStatement();
-                                       stmt.executeUpdate(crTableCmd);
-                               }
-                               catch (SQLException e1)
-                               {
-                                       myExc = new ConfigurationException("cannot create SVC_LOGIC table", e1);
-                               }
-                               finally
-                               {
-                                       if (stmt != null)
-                                       {
-                                               stmt.close();
-                                       }
-                               }
-
-                               if (myExc != null)
-                               {
-                                       throw myExc;
-                               }
-                       }
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not create SVC_LOGIC table", e);
-               }
-               
-               // See if NODE_TYPES table exists and, if not, create it
-               
-               try
-               {
-
-
-                       ResultSet tables = dbm.getTables(null, null, "NODE_TYPES", null);
-                       if (tables.next()) {
-                               // Table exists
-                       }
-                       else {
-
-                               String crTableCmd = "CREATE TABLE "+dbName+".NODE_TYPES ("
-                                               + "nodetype varchar(80) NOT NULL,"
-                                               + "CONSTRAINT P_NODE_TYPES PRIMARY KEY(nodetype))";
-
-                               Statement stmt = null;
-                               ConfigurationException myExc = null;
-                               try
-                               {
-                                       stmt = dbConn.createStatement();
-                                       stmt.executeUpdate(crTableCmd);
-                               }
-                               catch (SQLException e1)
-                               {
-                                       myExc = new ConfigurationException("cannot create SVC_LOGIC table", e1);
-                               }
-                               finally
-                               {
-                                       if (stmt != null)
-                                       {
-                                               stmt.close();
-                                       }
-                               }
-
-                               if (myExc != null)
-                               {
-                                       throw myExc;
-                               }
-                       }
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not create SVC_LOGIC table", e);
-               }
-       }
-       
-       private void prepStatements() throws ConfigurationException
-       {
-
-               // Prepare statements
-               String hasVersionGraphSql = "SELECT count(*) FROM "+dbName+".SVC_LOGIC"
-                               + " WHERE module = ? AND rpc = ? AND mode = ? AND version = ?";
-               
-               try
-               {
-                       hasVersionGraphStmt = dbConn.prepareStatement(hasVersionGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+hasVersionGraphSql, e);
-                       
-               }
-               
-               String hasActiveGraphSql = "SELECT count(*) FROM "+dbName+".SVC_LOGIC"
-                               + " WHERE module = ? AND rpc = ? AND mode = ? AND active = 'Y'";
-               
-               try
-               {
-                       hasActiveGraphStmt = dbConn.prepareStatement(hasActiveGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+hasVersionGraphSql, e);
-                       
-               }
-               
-               String fetchVersionGraphSql = "SELECT graph FROM "+dbName+".SVC_LOGIC"
-                               + " WHERE module = ? AND rpc = ? AND mode = ? AND version = ?";
-               
-               try
-               {
-                       fetchVersionGraphStmt = dbConn.prepareStatement(fetchVersionGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+fetchVersionGraphSql, e);
-                       
-               }
-               
-               String fetchActiveGraphSql = "SELECT graph FROM "+dbName+".SVC_LOGIC"
-                               + " WHERE module = ? AND rpc = ? AND mode = ? AND active = 'Y'";
-               
-               try
-               {
-                       fetchActiveGraphStmt = dbConn.prepareStatement(fetchActiveGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+fetchVersionGraphSql, e);
-                       
-               }
-               
-               String storeGraphSql = "INSERT INTO "+dbName+".SVC_LOGIC (module, rpc, version, mode, active, graph)"
-                               + " VALUES(?, ?, ?, ?, ?, ?)";
-               
-               try
-               {
-                       storeGraphStmt = dbConn.prepareStatement(storeGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+storeGraphSql, e);
-               }
-               
-               String deleteGraphSql = "DELETE FROM "+dbName+".SVC_LOGIC WHERE module = ? AND rpc = ? AND version = ? AND mode = ?";
-               
-               try
-               {
-                       deleteGraphStmt = dbConn.prepareStatement(deleteGraphSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+deleteGraphSql, e);
-               }
-               
-               String deactivateSql = "UPDATE "+dbName+".SVC_LOGIC SET active = 'N' WHERE module = ? AND rpc = ? AND mode = ?";
-               
-               try
-               {
-                       deactivateStmt = dbConn.prepareStatement(deactivateSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+deactivateSql, e);
-               }
-               
-               String activateSql = "UPDATE "+dbName+".SVC_LOGIC SET active = 'Y' WHERE module = ? AND rpc = ? AND version = ? AND mode = ?";
-               
-               try
-               {
-                       activateStmt = dbConn.prepareStatement(activateSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+activateSql, e);
-               }
-               
-               String registerNodeSql = "INSERT INTO "+dbName+".NODE_TYPES (nodetype) VALUES(?)";
-               try
-               {
-                       registerNodeStmt = dbConn.prepareStatement(registerNodeSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+registerNodeSql, e);
-               }
-               
-               String unregisterNodeSql = "DELETE FROM "+dbName+".NODE_TYPES WHERE nodetype = ?";
-               try
-               {
-                       unregisterNodeStmt = dbConn.prepareStatement(unregisterNodeSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+unregisterNodeSql, e);
-               }
-               
-               String validateNodeSql = "SELECT count(*) FROM "+dbName+".NODE_TYPES WHERE nodetype = ?";
-               try
-               {
-                       validateNodeStmt = dbConn.prepareStatement(validateNodeSql);
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("could not prepare statement "+validateNodeSql, e);
-               }
-       }
-       
-       private void initDbResources() throws ConfigurationException
-       {
-               if ((dbDriver != null) && (dbDriver.length() > 0))
-               {
-               
-                   try
-                   {
-                           Class.forName(dbDriver);
-                   }
-                   catch (Exception e)
-                   {
-                       throw new ConfigurationException("could not load driver class "+dbDriver, e);
-                   }
-               }
-               getConnection();
-               createTable();
-               prepStatements();
-       }
-       
-
-       public void init(Properties props) throws ConfigurationException {
-               
-               
-               dbUrl = props.getProperty("org.openecomp.sdnc.sli.jdbc.url");
-               if ((dbUrl == null) || (dbUrl.length() == 0))
-               {
-                       throw new ConfigurationException("property org.openecomp.sdnc.sli.jdbc.url unset");
-               }
-               
-               dbName = props.getProperty("org.openecomp.sdnc.sli.jdbc.database");
-               if ((dbName == null) || (dbName.length() == 0))
-               {
-                       throw new ConfigurationException("property org.openecomp.sdnc.sli.jdbc.database unset");
-               }
-               
-               dbUser = props.getProperty("org.openecomp.sdnc.sli.jdbc.user");
-               if ((dbUser == null) || (dbUser.length() == 0))
-               {
-                       throw new ConfigurationException("property org.openecomp.sdnc.sli.jdbc.user unset");
-               }
-
-               
-               dbPasswd = props.getProperty("org.openecomp.sdnc.sli.jdbc.password");
-               if ((dbPasswd == null) || (dbPasswd.length() == 0))
-               {
-                       throw new ConfigurationException("property org.openecomp.sdnc.sli.jdbc.password unset");
-               }
-               
-               dbDriver = props.getProperty("org.openecomp.sdnc.sli.jdbc.driver");
-
-                       
-               initDbResources();
-               
-       }
-       
-       private boolean isDbConnValid()
-       {
-
-               boolean isValid = false;
-               
-               try
-               {
-                       if (dbConn != null)
-                       {
-                               isValid = dbConn.isValid(1);
-                       }
-               }
-               catch (SQLException e)
-               {}
-               
-               return(isValid);
-       }
-public boolean hasGraph(String module, String rpc, String version, String mode) throws SvcLogicException {
-
-
-               
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-
-               
-               
-               boolean retval = false;
-               ResultSet results = null;
-               
-               PreparedStatement hasGraphStmt = null;
-               if (version == null)
-               {
-                       hasGraphStmt = hasActiveGraphStmt;
-               }
-               else
-               {
-                       hasGraphStmt = hasVersionGraphStmt;
-               }
-               
-
-               
-               try
-               {
-                       hasGraphStmt.setString(1, module);
-                       hasGraphStmt.setString(2,  rpc);
-                       hasGraphStmt.setString(3,  mode);
-
-                       
-                       if (version != null)
-                       {
-                               hasGraphStmt.setString(4, version);
-                       }
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       results = hasGraphStmt.executeQuery();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-                       
-                       if (results.next())
-                       {
-                               int cnt = results.getInt(1);
-                               
-                               if (cnt > 0)
-                               {
-                                       retval = true;
-                               }
-
-                       }
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("SQL query failed", e);
-               }
-               finally
-               {
-                       if (results != null)
-                       {
-                               try
-                               {
-                                       
-                                       results.close();
-                               }
-                               catch (SQLException x)
-                               {}
-                       }
-                       
-               }
-               
-               
-               return(retval);
-               
-               
-       }
-
-       public SvcLogicGraph fetch(String module, String rpc, String version, String mode) throws SvcLogicException {
-
-
-               
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-
-               
-               
-               SvcLogicGraph retval = null;
-               ResultSet results = null;
-               
-               PreparedStatement fetchGraphStmt = null;
-               if (version == null)
-               {
-                       fetchGraphStmt = fetchActiveGraphStmt;
-               }
-               else
-               {
-                       fetchGraphStmt = fetchVersionGraphStmt;
-               }
-               try
-               {
-                       fetchGraphStmt.setString(1, module);
-                       fetchGraphStmt.setString(2,  rpc);
-                       fetchGraphStmt.setString(3,  mode);
-
-                       
-                       if (version != null)
-                       {
-                               fetchGraphStmt.setString(4, version);
-                       }
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       results = fetchGraphStmt.executeQuery();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-                       
-                       if (results.next())
-                       {
-                               Blob graphBlob = results.getBlob("graph");
-                               
-                               ObjectInputStream gStream = new ObjectInputStream(graphBlob.getBinaryStream());
-                               
-                               Object graphObj = gStream.readObject();
-                               gStream.close();
-                               
-                               if (graphObj instanceof SvcLogicGraph)
-                               {
-                                       retval = (SvcLogicGraph) graphObj;
-                               }
-                               else
-                               {
-                                       throw new ConfigurationException("invalid type for graph ("+graphObj.getClass().getName());
-                                       
-                               }
-                               
-                       }
-                       else
-                       {
-                               return(null);
-                       }
-               }
-               catch (Exception e)
-               {
-                       throw new ConfigurationException("SQL query failed", e);
-               }
-               finally
-               {
-                       if (results != null)
-                       {
-                               try
-                               {
-                                       results.close();
-                               }
-                               catch (SQLException x)
-                               {}
-                       }
-                       
-               }
-               
-               
-               return(retval);
-               
-               
-       }
-
-       public void store(SvcLogicGraph graph) throws SvcLogicException {
-               
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-
-               if (graph == null)
-               {
-                       throw new SvcLogicException("graph cannot be null");
-               }
-               
-               byte[] graphBytes = null;
-               
-               ByteArrayOutputStream byteStr = null;
-               ObjectOutputStream goutStr = null;
-               
-               try
-               {
-                       byteStr = new ByteArrayOutputStream();
-                       goutStr = new ObjectOutputStream(byteStr);
-                       goutStr.writeObject(graph);
-                       
-                       graphBytes = byteStr.toByteArray();
-                       
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("could not serialize graph", e);
-               }
-               finally
-               {
-                       
-                       if (goutStr != null)
-                       {
-                               try {
-                                       goutStr.close();
-                               } catch (IOException e) {
-       
-                               }
-                       }
-                       
-                       if (byteStr != null)
-                       {
-                               try {
-                                       byteStr.close();
-                               } catch (IOException e) {
-       
-                               }
-                       }
-               }
-               
-               
-               // If object already stored in database, delete it
-               if (hasGraph(graph.getModule(), graph.getRpc(), graph.getVersion(), graph.getMode()))
-               {
-                       delete(graph.getModule(), graph.getRpc(), graph.getVersion(), graph.getMode());
-               }
-               
-               try
-               {
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       storeGraphStmt.setString(1,  graph.getModule());
-                       storeGraphStmt.setString(2,  graph.getRpc());
-                       storeGraphStmt.setString(3, graph.getVersion());
-                       storeGraphStmt.setString(4, graph.getMode());
-                       storeGraphStmt.setString(5, "N");
-                       storeGraphStmt.setBlob(6,  new ByteArrayInputStream(graphBytes));
-                       
-                       storeGraphStmt.executeUpdate();
-                       dbConn.commit();
-                       
-                       dbConn.setAutoCommit(oldAutoCommit);
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Could not write object to database", e);
-               }       
-       }
-       
-       public void delete(String module, String rpc, String version, String mode) throws SvcLogicException
-       {               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-
-               try
-               {
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       deleteGraphStmt.setString(1,  module);
-                       deleteGraphStmt.setString(2,  rpc);
-                       deleteGraphStmt.setString(3, version);
-                       deleteGraphStmt.setString(4,  mode);
-
-                       
-                       deleteGraphStmt.executeUpdate();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Could not delete object from database", e);
-               }       
-       }
-
-       public void activate(SvcLogicGraph graph) throws SvcLogicException
-       {
-               try
-               {
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       
-                       dbConn.setAutoCommit(false);
-                       
-                       // Deactivate any current active version
-                       deactivateStmt.setString(1,  graph.getModule());
-                       deactivateStmt.setString(2, graph.getRpc());
-                       deactivateStmt.setString(3, graph.getMode());
-                       deactivateStmt.executeUpdate();
-                       
-                       // Activate this version
-                       activateStmt.setString(1,  graph.getModule());
-                       activateStmt.setString(2, graph.getRpc());
-                       activateStmt.setString(3, graph.getVersion());
-                       activateStmt.setString(4, graph.getMode());
-                       activateStmt.executeUpdate();
-                       
-                       dbConn.commit();
-                       
-                       dbConn.setAutoCommit(oldAutoCommit);
-                       
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Could not activate graph", e);
-               }
-       }
-
-       @Override
-       public void registerNodeType(String nodeType) throws SvcLogicException {
-               
-               if (isValidNodeType(nodeType))
-               {
-                       return;
-               }
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-               
-               try
-               {
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       registerNodeStmt.setString(1,  nodeType);
-                       registerNodeStmt.executeUpdate();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Could not add node type to database", e);
-               }
-               
-       }
-
-       @Override
-       public void unregisterNodeType(String nodeType) throws SvcLogicException {
-               
-               if (!isValidNodeType(nodeType))
-               {
-                       return;
-               }
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-               
-               try
-               {
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       unregisterNodeStmt.setString(1,  nodeType);
-                       unregisterNodeStmt.executeUpdate();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Could not delete node type from database", e);
-               }
-               
-       }
-
-       @Override
-       public boolean isValidNodeType(String nodeType) throws SvcLogicException {
-               
-               boolean isValid = false;
-               
-               if (!isDbConnValid())
-               {
-                       
-                       // Try reinitializing
-                       initDbResources();
-                       
-                       if (!isDbConnValid())
-                       {
-                               throw new ConfigurationException("no jdbc connection");
-                       }
-               }
-               
-               ResultSet results = null;
-               try
-               {
-                       validateNodeStmt.setString(1, nodeType);
-                       
-                       boolean oldAutoCommit = dbConn.getAutoCommit();
-                       dbConn.setAutoCommit(false);
-                       results = validateNodeStmt.executeQuery();
-                       dbConn.commit();
-                       dbConn.setAutoCommit(oldAutoCommit);
-                       
-                       if (results != null)
-                       {
-                               if (results.next())
-                               {
-                                       int cnt = results.getInt(1);
-                                       
-                                       if (cnt > 0)
-                                       {
-                                               isValid = true;
-                                       }
-                               }
-                       }
-                       
-               }
-               catch (Exception e)
-               {
-                       throw new SvcLogicException("Cannot select node type from database", e);
-               }
-               finally
-               {
-                       if (results != null)
-                       {
-                               try
-                               {
-                                       results.close();
-                               }
-                               catch (SQLException x)
-                               {}
-                       }
-                       
-               }
-               
-               return(isValid);
-       }
-       
-       
-}