content: package com.alimama.mdrill.jdbc;
  
  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;
  
  
  public class MdrillConnection implements java.sql.Connection {
  	private boolean isClosed = true;
  	  private SQLWarning warningChain = null;
  
  	  private String httpurl="";
  	  private static final String URI_PREFIX = "jdbc:mdrill://";
  	  private static final String URI_PREFIX_OLD = "jdbc:higo://";
  
  
  	  public MdrillConnection(String uri, Properties info) throws SQLException {
  	    if (!uri.startsWith(URI_PREFIX)&&!uri.startsWith(URI_PREFIX_OLD)) {
  	      throw new SQLException("Invalid URL: " + uri, "08S01");
  	    }
  	    if (uri.startsWith(URI_PREFIX_OLD)) {
  	    	httpurl = uri.substring(URI_PREFIX_OLD.length());
  	    }else{
  		    httpurl = uri.substring(URI_PREFIX.length());
  	    }
  	    
  	    if (httpurl.isEmpty()) {
  		      throw new SQLException("Invalid URL: " + uri, "08S01");
  	      } 
  
  	      isClosed = false;
  	  }
  
  
  	
  	public Statement createStatement() throws SQLException {
  		 if (isClosed) {
  		      throw new SQLException("Can't create Statement, connection is closed");
  		    }
  		    return new MdrillStatement(this.httpurl);
  	}
  
  	
  	public PreparedStatement prepareStatement(String sql) throws SQLException {
  		return new MdrillPreparedStatement(this.httpurl, sql);
  	}
  
  	
  	public CallableStatement prepareCall(String sql) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public String nativeSQL(String sql) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public boolean getAutoCommit() throws SQLException {
  		return true;
  	}
  
  
  	
  	public boolean isClosed() throws SQLException {
  		return isClosed;
  	}
  
  	
  	public DatabaseMetaData getMetaData() throws SQLException {
  	    return new MdrillDatabaseMetaData(this.httpurl);
  
  	}
  
  	
  	public void setReadOnly(boolean readOnly) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public boolean isReadOnly() throws SQLException {
  		return false;
  	}
  
  	
  	public void setCatalog(String catalog) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public String getCatalog() throws SQLException {
  		return "";
  	}
  
  	
  	public void setTransactionIsolation(int level) throws SQLException {
  		throw new SQLException("Method not supported");
  		
  	}
  
  	
  	public int getTransactionIsolation() throws SQLException {
  		return Connection.TRANSACTION_NONE;
  	}
  
  	
  	public SQLWarning getWarnings() throws SQLException {
  		return warningChain;
  	}
  
  	
  	public void clearWarnings() throws SQLException {
  		 warningChain = null;
  	}
  
  	
  	public Statement createStatement(int resultSetType, int resultSetConcurrency)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public PreparedStatement prepareStatement(String sql, int resultSetType,
  			int resultSetConcurrency) throws SQLException {
  		return new MdrillPreparedStatement(this.httpurl, sql);
  	}
  
  	
  	public CallableStatement prepareCall(String sql, int resultSetType,
  			int resultSetConcurrency) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public int getHoldability() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  	
  	
  	public Map<String, Class<?>> getTypeMap() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  
  	
  	public Statement createStatement(int resultSetType,
  			int resultSetConcurrency, int resultSetHoldability)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  
  	
  	public CallableStatement prepareCall(String sql, int resultSetType,
  			int resultSetConcurrency, int resultSetHoldability)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)
  			throws SQLException {
  		return new MdrillPreparedStatement(this.httpurl, sql);
  	}
  
  	
  	public PreparedStatement prepareStatement(String sql, int[] columnIndexes)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public PreparedStatement prepareStatement(String sql, String[] columnNames)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	
  	public boolean isValid(int timeout) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	
  	public String getClientInfo(String name) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public Properties getClientInfo() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	
  	public Struct createStruct(String typeName, Object[] attributes)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  	
  	
  	public Clob createClob() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public Blob createBlob() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public NClob createNClob() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public SQLXML createSQLXML() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  	
  	
  	public void setClientInfo(String name, String value)
  			throws SQLClientInfoException {
  		throw new SQLClientInfoException("Method not supported", null);
  	}
  
  	
  	public void setClientInfo(Properties properties)
  			throws SQLClientInfoException {
  		throw new SQLClientInfoException("Method not supported", null);
  	}
  	
  	
  	public Array createArrayOf(String typeName, Object[] elements)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public <T> T unwrap(Class<T> iface) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public boolean isWrapperFor(Class<?> iface) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  	
  	
  	public void setAutoCommit(boolean autoCommit) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	
  	public void commit() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public void rollback() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public void close() throws SQLException {
          isClosed = true;
  	}
  	
  	
  	public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public void setHoldability(int holdability) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public Savepoint setSavepoint() throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public Savepoint setSavepoint(String name) throws SQLException {
  		 throw new SQLException("Method not supported");
  	}
  
  	
  	public void rollback(Savepoint savepoint) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  	
  	public void releaseSavepoint(Savepoint savepoint) throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  	
  	
  	public PreparedStatement prepareStatement(String sql, int resultSetType,
  			int resultSetConcurrency, int resultSetHoldability)
  			throws SQLException {
  		throw new SQLException("Method not supported");
  	}
  
  
  	
  	public void abort(Executor arg0) throws SQLException {
  		// TODO Auto-generated method stub
  		
  	}
  
  
  	
  	public int getNetworkTimeout() throws SQLException {
  		// TODO Auto-generated method stub
  		return 0;
  	}
  
  
  	
  	public String getSchema() throws SQLException {
  		// TODO Auto-generated method stub
  		return null;
  	}
  
  
  	
  	public void setNetworkTimeout(Executor arg0, int arg1) throws SQLException {
  		// TODO Auto-generated method stub
  		
  	}
  
  
  	
  	public void setSchema(String arg0) throws SQLException {
  		// TODO Auto-generated method stub
  		
  	}
  }
  