de.micromata.genome.util.runtime.jndi.SimpleJndiContext.java Source code

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Here is the source code for de.micromata.genome.util.runtime.jndi.SimpleJndiContext.java

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//
// Copyright (C) 2010-2016 Micromata GmbH
//
// 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 de.micromata.genome.util.runtime.jndi;

import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NameNotFoundException;
import javax.naming.NameParser;
import javax.naming.NamingException;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

import de.micromata.genome.util.bean.PrivateBeanUtils;

/**
 * Mockup implementation for JNDI context.
 * 
 * Hibernate needs to support Names. So extends SimpleNamingContext for basic Name support.
 * 
 * @author roger
 * 
 */
public class SimpleJndiContext extends SimpleNamingContext {
    public static final Logger LOG = Logger.getLogger(SimpleJndiContext.class);

    public SimpleJndiContext() {
        super();
    }

    public SimpleJndiContext(String root, Hashtable<String, Object> boundObjects, Hashtable<String, Object> env) {
        super(root, boundObjects, env);
    }

    public SimpleJndiContext(String root) {
        super(root);
    }

    @Override
    public NameParser getNameParser(String name) throws NamingException {
        return new JndiMockupParser();
    }

    protected String toString(Name name) {
        return name.toString();
    }

    @Override
    public Object lookup(Name name) throws NamingException {
        return super.lookup(toString(name));
    }

    protected String getRoot() {
        return PrivateBeanUtils.readField(this, "root", String.class);
    }

    protected Hashtable<String, Object> getBoundObjects() {
        return PrivateBeanUtils.readField(this, "boundObjects", Hashtable.class);
    }

    @Override
    public Context createSubcontext(String name) {
        String subcontextName = getRoot() + name;
        if (!subcontextName.endsWith("/")) {
            subcontextName += "/";
        }
        Context subcontext = new SimpleJndiContext(subcontextName, getBoundObjects(), getEnvironment());
        bind(name, subcontext);
        return subcontext;
    }

    @Override
    public Object lookup(String lookupName) throws NameNotFoundException {
        try {
            return super.lookup(lookupName);
        } catch (NameNotFoundException ex) {
            String prefix = "java:comp/env/";
            if (StringUtils.startsWith(lookupName, prefix) == false) {
                return super.lookup(prefix + lookupName);
            }
            throw ex;
        }
    }

}