org.apache.openejb.resource.jdbc.BasicDataSource.java Source code

Introduction

Here is the source code for org.apache.openejb.resource.jdbc.BasicDataSource.java

Source

/*
 * 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.openejb.resource.jdbc;

import java.io.File;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

import javax.sql.DataSource;

import org.apache.openejb.loader.SystemInstance;

public class BasicDataSource extends org.apache.commons.dbcp.BasicDataSource {

    /**
     * The password codec to be used to retrieve the plain text password from a
     * ciphered value.
     * 
     * <em>The default is no codec.</em>. In other words, it means password is
     * not ciphered. The {@link PlainTextPasswordCipher} can also be used.
     */
    private String passwordCipher = null;

    /**
     * Returns the password codec class name to use to retrieve plain text
     * password.
     * 
     * @return the password codec class
     */
    public synchronized String getPasswordCipher() {
        return this.passwordCipher;
    }

    /**
     * <p>
     * Sets the {@link #passwordCipher}.
     * </p>
     * 
     * @param passwordCipher
     *            password codec value
     */
    public synchronized void setPasswordCipher(String passwordCipher) {
        this.passwordCipher = passwordCipher;
    }

    public synchronized String getUserName() {
        return super.getUsername();
    }

    public synchronized void setUserName(String string) {
        super.setUsername(string);
    }

    public synchronized String getJdbcDriver() {
        return super.getDriverClassName();
    }

    public synchronized void setJdbcDriver(String string) {
        super.setDriverClassName(string);
    }

    public synchronized String getJdbcUrl() {
        return super.getUrl();
    }

    public synchronized void setJdbcUrl(String string) {
        super.setUrl(string);
    }

    public synchronized void setDefaultTransactionIsolation(String s) {
        if (s == null || s.equals(""))
            return;
        int level = IsolationLevels.getIsolationLevel(s);
        super.setDefaultTransactionIsolation(level);
    }

    public synchronized void setMaxWait(final int maxWait) {
        super.setMaxWait((long) maxWait);
    }

    protected synchronized DataSource createDataSource() throws SQLException {
        if (dataSource != null) {
            return dataSource;
        }

        // check password codec if available
        if (null != passwordCipher) {
            PasswordCipher cipher = BasicDataSourceUtil.getPasswordCipher(passwordCipher);
            String plainPwd = cipher.decrypt(password.toCharArray());

            // override previous password value
            super.setPassword(plainPwd);
        }

        // get the plugin
        DataSourcePlugin helper = BasicDataSourceUtil.getDataSourcePlugin(getUrl());

        // configure this
        if (helper != null) {
            helper.configure(this);
        }

        // creat the data source
        if (helper == null || !helper.enableUserDirHack()) {
            return super.createDataSource();
        } else {
            // wrap super call with code that sets user.dir to openejb.base and then resets it
            Properties systemProperties = System.getProperties();
            synchronized (systemProperties) {
                String userDir = systemProperties.getProperty("user.dir");
                try {
                    File base = SystemInstance.get().getBase().getDirectory();
                    systemProperties.setProperty("user.dir", base.getAbsolutePath());
                    return super.createDataSource();
                } finally {
                    systemProperties.setProperty("user.dir", userDir);
                }
            }
        }
    }

    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        try {
            return (Logger) DataSource.class.getDeclaredMethod("getParentLogger").invoke(dataSource);
        } catch (Throwable e) {
            throw new SQLFeatureNotSupportedException();
        }
    }

}