org.apache.ibatis.datasource.jndi.JndiDataSourceFactory.java Source code

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Here is the source code for org.apache.ibatis.datasource.jndi.JndiDataSourceFactory.java

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/**
 *    Copyright 2009-2016 the original author or authors.
 *
 *    Licensed 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.ibatis.datasource.jndi;

import java.util.Map.Entry;
import java.util.Properties;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;

import org.apache.ibatis.datasource.DataSourceException;
import org.apache.ibatis.datasource.DataSourceFactory;

/**
 * @author Clinton Begin
 */
public class JndiDataSourceFactory implements DataSourceFactory {

    public static final String INITIAL_CONTEXT = "initial_context";
    public static final String DATA_SOURCE = "data_source";
    public static final String ENV_PREFIX = "env.";

    private DataSource dataSource;

    @Override
    public void setProperties(Properties properties) {
        try {
            InitialContext initCtx;
            Properties env = getEnvProperties(properties);
            if (env == null) {
                initCtx = new InitialContext();
            } else {
                initCtx = new InitialContext(env);
            }

            if (properties.containsKey(INITIAL_CONTEXT) && properties.containsKey(DATA_SOURCE)) {
                Context ctx = (Context) initCtx.lookup(properties.getProperty(INITIAL_CONTEXT));
                dataSource = (DataSource) ctx.lookup(properties.getProperty(DATA_SOURCE));
            } else if (properties.containsKey(DATA_SOURCE)) {
                dataSource = (DataSource) initCtx.lookup(properties.getProperty(DATA_SOURCE));
            }

        } catch (NamingException e) {
            throw new DataSourceException(
                    "There was an error configuring JndiDataSourceTransactionPool. Cause: " + e, e);
        }
    }

    @Override
    public DataSource getDataSource() {
        return dataSource;
    }

    private static Properties getEnvProperties(Properties allProps) {
        final String PREFIX = ENV_PREFIX;
        Properties contextProperties = null;
        for (Entry<Object, Object> entry : allProps.entrySet()) {
            String key = (String) entry.getKey();
            String value = (String) entry.getValue();
            if (key.startsWith(PREFIX)) {
                if (contextProperties == null) {
                    contextProperties = new Properties();
                }
                contextProperties.put(key.substring(PREFIX.length()), value);
            }
        }
        return contextProperties;
    }

}