com.wabacus.config.database.datasource.DriverManagerDataSource.java Source code

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Here is the source code for com.wabacus.config.database.datasource.DriverManagerDataSource.java

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/* 
 * Copyright (C) 2010---2014 (wuweixing)<349446658@qq.com>
 * 
 * This file is part of Wabacus 
 * 
 * Wabacus is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.wabacus.config.database.datasource;

import java.sql.Connection;
import java.sql.DriverManager;
import java.util.List;

import javax.sql.DataSource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dom4j.Element;

import com.wabacus.exception.WabacusConfigLoadingException;
import com.wabacus.exception.WabacusRuntimeException;
import com.wabacus.util.DesEncryptTools;

public class DriverManagerDataSource extends AbsDataSource {
    private static Log log = LogFactory.getLog(DriverManagerDataSource.class);

    private String driver;

    private String url;

    private String user;

    private String password;

    public String getDriver() {
        return driver;
    }

    public void setDriver(String driver) {
        this.driver = driver;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getUser() {
        return user;
    }

    public void setUser(String user) {
        this.user = user;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Connection getConnection() {
        try {
            log.debug("??" + this.getName() + "??");
            Class.forName(this.driver).newInstance();
            return DriverManager.getConnection(url, user, password);
        } catch (Exception e) {
            log.error("??", e);
        }
        return null;
    }

    public DataSource getDataSource() {
        throw new WabacusRuntimeException(
                "?DriverManagerDataSource???javax.sql.DataSource");
    }

    public void loadConfig(Element eleDataSource) {
        super.loadConfig(eleDataSource);
        List lstEleProperties = eleDataSource.elements("property");
        if (lstEleProperties == null || lstEleProperties.size() == 0) {
            throw new WabacusConfigLoadingException(
                    "??" + this.getName() + "?driver?url?user?");
        }
        Element eleChild;
        String name;
        String value;
        for (int i = 0; i < lstEleProperties.size(); i++) {
            eleChild = (Element) lstEleProperties.get(i);
            name = eleChild.attributeValue("name");
            value = eleChild.getText();
            name = name == null ? "" : name.trim();
            value = value == null ? "" : value.trim();
            if (name.equals("driver")) {
                driver = value;
            } else if (name.equals("url")) {
                url = value;
            } else if (name.equals("user")) {
                user = value;
            } else if (name.equals("password")) {
                password = value;
            }
        }
        driver = driver == null ? "" : driver.trim();
        url = url == null ? "" : url.trim();
        user = user == null ? "" : user.trim();
        password = password == null ? "" : password.trim();
        if (password.startsWith("{3DES}")) {
            password = password.substring("{3DES}".length());
            if (DesEncryptTools.KEY_OBJ == null) {
                throw new WabacusConfigLoadingException(
                        "?????");
            }
            password = DesEncryptTools.decrypt(password);
        }
        if (driver.equals("") || url.equals("") || user.equals("")) {
            throw new WabacusConfigLoadingException("??" + this.getName()
                    + "????driver,url,user?");
        }
    }

}