MongoDriver.java

package io.mycat.backend.jdbc.mongodb;

import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.DriverPropertyInfo;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

import org.slf4j.LoggerFactory;

import com.mongodb.MongoClientURI;
/**  
 * 功能详细描述
 * @author sohudo[http://blog.csdn.net/wind520]
 * @create 2014年12月19日 下午6:50:23 
 * @version 0.0.1
 */
public class MongoDriver implements Driver

{
    private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(MongoDriver.class);
    static final String PREFIX = "mongodb://";
    private DriverPropertyInfoHelper propertyInfoHelper = new DriverPropertyInfoHelper();
    
	static{
		try{
			DriverManager.registerDriver(new MongoDriver());
		}catch (SQLException e){
		    LOGGER.error("initError",e);
		}
	}


	@Override
	public Connection connect(String url, Properties info) throws SQLException {
		MongoClientURI mcu = null;
		if ((mcu = parseURL(url, info)) == null) {
			return null;
		}
		
		MongoConnection result = null;
		//System.out.print(info);
		try{
			result = new MongoConnection(mcu, url);
		}catch (Exception e){
			throw new SQLException("Unexpected exception: " + e.getMessage(), e);
		}
		
		return result;
	}
	
	private MongoClientURI parseURL(String url, Properties defaults) {
		if (url == null) {
			return null;
		}
		
		if (!StringUtils.startsWithIgnoreCase(url, PREFIX)) {	
			return null;
		}
		
		//删掉开头的 jdbc:
		//url = url.replace(URL_JDBC, "");
		
		try {
			//FIXME 判断defaults中的参数,写入URL中?
			return new MongoClientURI(url);
		} catch (Exception e) {
	        LOGGER.error("parseURLError",e);
			return null;
		}
		
	}
	
	@Override
	public boolean acceptsURL(String url) throws SQLException {
		if (StringUtils.startsWithIgnoreCase(url, PREFIX)) {
			return true;
		}
		return false;
	}
	
	@Override
	public DriverPropertyInfo[] getPropertyInfo(String url, Properties info)
			throws SQLException {

		return propertyInfoHelper.getPropertyInfo();
	}	
	

	@Override
	public int getMajorVersion() {
		return 1;
	}

	@Override
	public int getMinorVersion() {
		return 0;
	}

	@Override
	public boolean jdbcCompliant() {
		return true;
	}
	@Override  
	public Logger getParentLogger() throws SQLFeatureNotSupportedException{
		return null;
	}

}