/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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.
   */
  
  package org.apache.shardingsphere.infra.database.core.metadata.data.loader;
  
  import org.apache.shardingsphere.infra.database.core.metadata.database.DialectDatabaseMetaData;
  import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
  import org.apache.shardingsphere.infra.database.core.type.DatabaseTypeRegistry;
  
  import java.sql.Array;
  import java.sql.Blob;
  import java.sql.CallableStatement;
  import java.sql.Clob;
  import java.sql.Connection;
  import java.sql.DatabaseMetaData;
  import java.sql.NClob;
  import java.sql.PreparedStatement;
  import java.sql.SQLClientInfoException;
  import java.sql.SQLException;
  import java.sql.SQLWarning;
  import java.sql.SQLXML;
  import java.sql.Savepoint;
  import java.sql.Statement;
  import java.sql.Struct;
  import java.util.Map;
  import java.util.Properties;
  import java.util.concurrent.Executor;
  
  /**
   * Meta data loader connection.
   */
  public final class MetaDataLoaderConnection implements Connection {
      
      private final Connection connection;
      
      private final DialectDatabaseMetaData dialectDatabaseMetaData;
      
      public MetaDataLoaderConnection(final DatabaseType databaseType, final Connection connection) {
          this.connection = connection;
          dialectDatabaseMetaData = new DatabaseTypeRegistry(databaseType).getDialectDatabaseMetaData();
      }
      
      @SuppressWarnings("ReturnOfNull")
      @Override
      public String getCatalog() {
          try {
              return connection.getCatalog();
          } catch (final SQLException ignored) {
              return null;
          }
      }
      
      @Override
      public void setCatalog(final String catalog) throws SQLException {
          connection.setCatalog(catalog);
      }
      
      @Override
      public String getSchema() {
          return dialectDatabaseMetaData.getSchema(connection);
      }
      
      @Override
      public void setSchema(final String schema) throws SQLException {
          connection.setSchema(schema);
      }
      
      @Override
      public Statement createStatement() throws SQLException {
          return connection.createStatement();
      }
      
      @Override
      public Statement createStatement(final int resultSetType, final int resultSetConcurrency) throws SQLException {
          return connection.createStatement(resultSetType, resultSetConcurrency);
      }
      
      @Override
      public Statement createStatement(final int resultSetType, final int resultSetConcurrency, final int resultSetHoldability) throws SQLException {
          return connection.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability);
      }
      
      @Override
      public PreparedStatement prepareStatement(final String sql) throws SQLException {
          return connection.prepareStatement(sql);
     }
     
     @Override
     public PreparedStatement prepareStatement(final String sql, final int resultSetType, final int resultSetConcurrency) throws SQLException {
         return connection.prepareStatement(sql, resultSetType, resultSetConcurrency);
     }
     
     @Override
     public PreparedStatement prepareStatement(final String sql, final int resultSetType, final int resultSetConcurrency, final int resultSetHoldability) throws SQLException {
         return connection.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
     }
     
     @Override
     public PreparedStatement prepareStatement(final String sql, final int autoGeneratedKeys) throws SQLException {
         return connection.prepareStatement(sql, autoGeneratedKeys);
     }
     
     @Override
     public PreparedStatement prepareStatement(final String sql, final int[] columnIndexes) throws SQLException {
         return connection.prepareStatement(sql, columnIndexes);
     }
     
     @Override
     public PreparedStatement prepareStatement(final String sql, final String[] columnNames) throws SQLException {
         return connection.prepareStatement(sql, columnNames);
     }
     
     @Override
     public CallableStatement prepareCall(final String sql) throws SQLException {
         return connection.prepareCall(sql);
     }
     
     @Override
     public CallableStatement prepareCall(final String sql, final int resultSetType, final int resultSetConcurrency) throws SQLException {
         return connection.prepareCall(sql, resultSetType, resultSetConcurrency);
     }
     
     @Override
     public CallableStatement prepareCall(final String sql, final int resultSetType, final int resultSetConcurrency, final int resultSetHoldability) throws SQLException {
         return connection.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
     }
     
     @Override
     public String nativeSQL(final String sql) throws SQLException {
         return connection.nativeSQL(sql);
     }
     
     @Override
     public void setAutoCommit(final boolean autoCommit) throws SQLException {
         connection.setAutoCommit(autoCommit);
     }
     
     @Override
     public boolean getAutoCommit() throws SQLException {
         return connection.getAutoCommit();
     }
     
     @Override
     public void commit() throws SQLException {
         connection.commit();
     }
     
     @Override
     public void close() throws SQLException {
         connection.close();
     }
     
     @Override
     public boolean isClosed() throws SQLException {
         return connection.isClosed();
     }
     
     @Override
     public DatabaseMetaData getMetaData() throws SQLException {
         return connection.getMetaData();
     }
     
     @Override
     public void setReadOnly(final boolean readOnly) throws SQLException {
         connection.setReadOnly(readOnly);
     }
     
     @Override
     public boolean isReadOnly() throws SQLException {
         return connection.isReadOnly();
     }
     
     @Override
     public void setTransactionIsolation(final int level) throws SQLException {
         connection.setTransactionIsolation(level);
     }
     
     @Override
     public int getTransactionIsolation() throws SQLException {
         return connection.getTransactionIsolation();
     }
     
     @Override
     public SQLWarning getWarnings() throws SQLException {
         return connection.getWarnings();
     }
     
     @Override
     public void clearWarnings() throws SQLException {
         connection.clearWarnings();
     }
     
     @Override
     public Map<String, Class<?>> getTypeMap() throws SQLException {
         return connection.getTypeMap();
     }
     
     @Override
     public void setTypeMap(final Map<String, Class<?>> map) throws SQLException {
         connection.setTypeMap(map);
     }
     
     @Override
     public void setHoldability(final int holdability) throws SQLException {
         connection.setHoldability(holdability);
     }
     
     @Override
     public int getHoldability() throws SQLException {
         return connection.getHoldability();
     }
     
     @Override
     public Savepoint setSavepoint() throws SQLException {
         return connection.setSavepoint();
     }
     
     @Override
     public Savepoint setSavepoint(final String name) throws SQLException {
         return connection.setSavepoint(name);
     }
     
     @Override
     public void rollback() throws SQLException {
         connection.rollback();
     }
     
     @Override
     public void rollback(final Savepoint savepoint) throws SQLException {
         connection.rollback(savepoint);
     }
     
     @Override
     public void releaseSavepoint(final Savepoint savepoint) throws SQLException {
         connection.releaseSavepoint(savepoint);
     }
     
     @Override
     public Clob createClob() throws SQLException {
         return connection.createClob();
     }
     
     @Override
     public Blob createBlob() throws SQLException {
         return connection.createBlob();
     }
     
     @Override
     public NClob createNClob() throws SQLException {
         return connection.createNClob();
     }
     
     @Override
     public SQLXML createSQLXML() throws SQLException {
         return connection.createSQLXML();
     }
     
     @Override
     public boolean isValid(final int timeout) throws SQLException {
         return connection.isValid(timeout);
     }
     
     @Override
     public void setClientInfo(final String name, final String value) throws SQLClientInfoException {
         connection.setClientInfo(name, value);
     }
     
     @Override
     public void setClientInfo(final Properties props) throws SQLClientInfoException {
         connection.setClientInfo(props);
     }
     
     @Override
     public String getClientInfo(final String name) throws SQLException {
         return connection.getClientInfo(name);
     }
     
     @Override
     public Properties getClientInfo() throws SQLException {
         return connection.getClientInfo();
     }
     
     @Override
     public Array createArrayOf(final String typeName, final Object[] elements) throws SQLException {
         return connection.createArrayOf(typeName, elements);
     }
     
     @Override
     public Struct createStruct(final String typeName, final Object[] attributes) throws SQLException {
         return connection.createStruct(typeName, attributes);
     }
     
     @Override
     public void abort(final Executor executor) throws SQLException {
         connection.abort(executor);
     }
     
     @Override
     public void setNetworkTimeout(final Executor executor, final int milliseconds) throws SQLException {
         connection.setNetworkTimeout(executor, milliseconds);
     }
     
     @Override
     public int getNetworkTimeout() throws SQLException {
         return connection.getNetworkTimeout();
     }
     
     @Override
     public <T> T unwrap(final Class<T> iface) throws SQLException {
         return connection.unwrap(iface);
     }
     
     @Override
     public boolean isWrapperFor(final Class<?> iface) throws SQLException {
         return connection.isWrapperFor(iface);
     }
 }