org.jboss.marshalling.util.FlatNavigableMap 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 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 org.jboss.marshalling.util;

import java.util.AbstractMap;
import java.util.AbstractSet;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.NavigableMap;
import java.util.NavigableSet;
import java.util.Set;
import java.util.SortedMap;

/**
 * @author David M. Lloyd
 */
public final class FlatNavigableMap extends AbstractMap implements NavigableMap {
    private final Comparator comparator;
    private final List> entries = new ArrayList>();
    private final Set> entrySet = new AbstractSet>() {
        public Iterator> iterator() {
            return entries.iterator();
        }

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

    public V put(final K key, final V value) {
        entries.add(new EntryImpl(key, value));
        return null;
    }

    public FlatNavigableMap(final Comparator comparator) {
        this.comparator = comparator;
    }

    public Comparator comparator() {
        return comparator;
    }

    public Set> entrySet() {
        return entrySet;
    }

    public Entry lowerEntry(final K key) {
        throw new UnsupportedOperationException();
    }

    public K lowerKey(final K key) {
        throw new UnsupportedOperationException();
    }

    public Entry floorEntry(final K key) {
        throw new UnsupportedOperationException();
    }

    public K floorKey(final K key) {
        throw new UnsupportedOperationException();
    }

    public Entry ceilingEntry(final K key) {
        throw new UnsupportedOperationException();
    }

    public K ceilingKey(final K key) {
        throw new UnsupportedOperationException();
    }

    public Entry higherEntry(final K key) {
        throw new UnsupportedOperationException();
    }

    public K higherKey(final K key) {
        throw new UnsupportedOperationException();
    }

    public Entry firstEntry() {
        throw new UnsupportedOperationException();
    }

    public Entry lastEntry() {
        throw new UnsupportedOperationException();
    }

    public Entry pollFirstEntry() {
        throw new UnsupportedOperationException();
    }

    public Entry pollLastEntry() {
        throw new UnsupportedOperationException();
    }

    public NavigableMap descendingMap() {
        throw new UnsupportedOperationException();
    }

    public NavigableSet navigableKeySet() {
        throw new UnsupportedOperationException();
    }

    public NavigableSet descendingKeySet() {
        throw new UnsupportedOperationException();
    }

    public NavigableMap subMap(final K fromKey, final boolean fromInclusive, final K toKey, final boolean toInclusive) {
        throw new UnsupportedOperationException();
    }

    public NavigableMap headMap(final K toKey, final boolean inclusive) {
        throw new UnsupportedOperationException();
    }

    public NavigableMap tailMap(final K fromKey, final boolean inclusive) {
        throw new UnsupportedOperationException();
    }

    public SortedMap subMap(final K fromKey, final K toKey) {
        throw new UnsupportedOperationException();
    }

    public SortedMap headMap(final K toKey) {
        throw new UnsupportedOperationException();
    }

    public SortedMap tailMap(final K fromKey) {
        throw new UnsupportedOperationException();
    }

    public K firstKey() {
        throw new UnsupportedOperationException();
    }

    public K lastKey() {
        throw new UnsupportedOperationException();
    }

    static final class EntryImpl implements Entry {
        private final K key;
        private V value;

        EntryImpl(final K key, final V value) {
            this.key = key;
            this.value = value;
        }

        public K getKey() {
            return key;
        }

        public V getValue() {
            return value;
        }

        public V setValue(final V value) {
            try {
                return this.value;
            } finally {
                this.value = value;
            }
        }

        private static int hashOf(Object obj) {
            return obj == null ? 0 : obj.hashCode();
        }

        private static boolean equals(Object a, Object b) {
            return a == null ? b == null : a.equals(b);
        }

        public final int hashCode() {
            return hashOf(getKey()) ^ hashOf(getValue());
        }

        public final boolean equals(final Object obj) {
            return obj instanceof Entry && equals((Entry) obj);
        }

        public final boolean equals(final Entry obj) {
            return obj != null && equals(getKey(), obj.getKey()) && equals(getValue(), obj.getValue());
        }

        public String toString() {
            return String.format("{%s=>%s}", getKey(), getValue());
        }
    }
}