org.xnio.ObjectProperties Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2010, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.xnio;

import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;

/**
 * A Hashtable variant which keeps property names in order, for use by MBean {@code ObjectName}s.
 *
 * @author David M. Lloyd
 */
final class ObjectProperties extends Hashtable {

    private static final long serialVersionUID = -4691081844415343670L;

    private final Map realMap;

    public static Property property(String key, String value) {
        return new Property(key, value);
    }

    public static ObjectProperties properties(Property... properties) {
        return new ObjectProperties(properties);
    }

    public ObjectProperties(final int initialCapacity, final float loadFactor) {
        realMap = new LinkedHashMap(initialCapacity, loadFactor);
    }

    public ObjectProperties(final int initialCapacity) {
        realMap = new LinkedHashMap(initialCapacity);
    }

    public ObjectProperties() {
        realMap = new LinkedHashMap();
    }

    public ObjectProperties(final Map t) {
        realMap = new LinkedHashMap(t);
    }

    public ObjectProperties(Property... properties) {
        realMap = new LinkedHashMap(properties.length);
        for (Property property : properties) {
            realMap.put(property.getKey(), property.getValue());
        }
    }

    public int size() {
        return realMap.size();
    }

    public boolean isEmpty() {
        return realMap.isEmpty();
    }

    public Enumeration keys() {
        return Collections.enumeration(realMap.keySet());
    }

    public Enumeration elements() {
        return Collections.enumeration(realMap.values());
    }

    public boolean contains(final Object value) {
        return realMap.containsValue(value);
    }

    public boolean containsValue(final Object value) {
        return realMap.containsValue(value);
    }

    public boolean containsKey(final Object key) {
        return realMap.containsKey(key);
    }

    public String get(final Object key) {
        return realMap.get(key);
    }

    protected void rehash() {
    }

    public String put(final String key, final String value) {
        return realMap.put(key, value);
    }

    public String remove(final Object key) {
        return realMap.remove(key);
    }

    public void putAll(final Map t) {
        realMap.putAll(t);
    }

    public void clear() {
        realMap.clear();
    }

    public Object clone() {
        return super.clone();
    }

    public String toString() {
        return realMap.toString();
    }

    public Set keySet() {
        return realMap.keySet();
    }

    public Set> entrySet() {
        return realMap.entrySet();
    }

    public Collection values() {
        return realMap.values();
    }

    /**
     * A single property in a properties list.
     */
    public static final class Property {
        private final String key;
        private final String value;

        public Property(final String key, final String value) {
            if (key == null) {
                throw new IllegalArgumentException("key is null");
            }
            if (value == null) {
                throw new IllegalArgumentException("value is null");
            }
            this.key = key;
            this.value = value;
        }

        public String getKey() {
            return key;
        }

        public String getValue() {
            return value;
        }
    }
}