de.highbyte_le.weberknecht.conf.ContextConfig.java Source code

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Here is the source code for de.highbyte_le.weberknecht.conf.ContextConfig.java

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/*
 * ContextConfig.java (weberknecht)
 *
 * Copyright 2009 Patrick Mairif.
 * The program is distributed under the terms of the Apache License (ALv2).
 * 
 * created: 2009-02-01
 * tabstop=4, charset=UTF-8
 */
package de.highbyte_le.weberknecht.conf;

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

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

/**
 * helper for accessing JNDI config
 * @author pmairif
 */
public class ContextConfig {

    private Context envCtx = null;

    /**
     * Logger for this class
     */
    private final Log logger = LogFactory.getLog(ContextConfig.class);

    public ContextConfig() throws NamingException {
        Context ctx = new InitialContext();
        envCtx = (Context) ctx.lookup("java:comp/env"); //$NON-NLS-1$
    }

    public String getValue(String key) throws NamingException {
        return (String) envCtx.lookup(key);
    }

    public String getValue(String key, String defaultValue) {
        try {
            return getValue(key);
        } catch (NamingException e) {
            logger.error("getValue() - NamingException: " + e.getMessage(), e); //$NON-NLS-1$
        }
        return defaultValue;
    }
}