org.springframework.boot.autoconfigure.jndi.TestableInitialContextFactory.java Source code

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Here is the source code for org.springframework.boot.autoconfigure.jndi.TestableInitialContextFactory.java

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/*
 * Copyright 2012-2019 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
 *
 *      https://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.springframework.boot.autoconfigure.jndi;

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;

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

/**
 * An {@code InitialContextFactory} implementation to be used for testing JNDI.
 *
 * @author Stephane Nicoll
 */
public class TestableInitialContextFactory implements InitialContextFactory {

    private static TestableContext context;

    @Override
    public Context getInitialContext(Hashtable<?, ?> environment) throws NamingException {
        return getContext();
    }

    public static void bind(String name, Object obj) {
        try {
            getContext().bind(name, obj);
        } catch (NamingException ex) {
            throw new IllegalStateException(ex);
        }
    }

    public static void clearAll() {
        getContext().clearAll();
    }

    private static TestableContext getContext() {
        if (context == null) {
            try {
                context = new TestableContext();
            } catch (NamingException ex) {
                throw new IllegalStateException(ex);
            }
        }
        return context;
    }

    private static final class TestableContext extends InitialContext {

        private final Map<String, Object> bindings = new HashMap<>();

        private TestableContext() throws NamingException {
            super(true);
        }

        @Override
        public void bind(String name, Object obj) throws NamingException {
            this.bindings.put(name, obj);
        }

        @Override
        public Object lookup(String name) throws NamingException {
            return this.bindings.get(name);
        }

        @Override
        public Hashtable<?, ?> getEnvironment() throws NamingException {
            return new Hashtable<>(); // Used to detect if JNDI is
            // available
        }

        void clearAll() {
            this.bindings.clear();
        }

    }

}