SimpleSettingsImpl.java

/*******************************************************************************
 * Copyright (c) 2004, 2013 Steve Flasby
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * <ul>
 *     <li>Redistributions of source code must retain the above copyright notice,
 *         this list of conditions and the following disclaimer.</li>
 *     <li>Redistributions in binary form must reproduce the above copyright notice,
 *         this list of conditions and the following disclaimer in the documentation
 *         and/or other materials provided with the distribution.</li>
 * </ul>
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/

package org.flasby.settings;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map.Entry;

/*
 * @author Steve Flasby
 * Oct 16, 2012
 */

public class SimpleSettingsImpl implements PersistentSettings {
	HashMap<String, String> mySettings = new HashMap<>();

	@Override
	public String get(String name) {
		return mySettings.get(name);
	}

	@Override
	public void add(String name, String value) {
		mySettings.put(name, value);
	}

	@Override
	public void remove(String name) {
		mySettings.remove(name);
	}

	@Override
	public void save() {

	}

	@Override
	public Iterator<Entry<String, String>> iterator() {
		return mySettings.entrySet().iterator();
	}

	@Override
	public boolean isEmpty() {
		return mySettings.isEmpty();
	}

	@Override
	public void doIfExists(String key, ApplyWithExistingValue ifExists) {
		if (get(key) != null) {
			ifExists.apply(key, get(key));
		}
	}

	@Override
	public void doIfExists(String key, ApplyWithExistingValue ifExists, ApplyWithMissingKey otherwise) {
		if (get(key) != null) {
			ifExists.apply(key, get(key));
		} else {
			otherwise.apply(key);
		}
	}

}