io.netty.util.UniqueName Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

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).

There is a newer version: 33.0.2.Final

Show newest version

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you 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 io.netty.util;

import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicInteger;

import static io.netty.util.internal.ObjectUtil.checkNotNull;

/**
 * @deprecated Known to have problems with class loaders.
 *
 * Defines a name that must be unique in the map that is provided during construction.
 */
@Deprecated
public class UniqueName implements Comparable {

    private static final AtomicInteger nextId = new AtomicInteger();

    private final int id;
    private final String name;

    /**
     * Constructs a new {@link UniqueName}
     *
     * @param map the map of names to compare with
     * @param name the name of this {@link UniqueName}
     * @param args the arguments to process
     */
    public UniqueName(ConcurrentMap map, String name, Object... args) {
        checkNotNull(map, "map");

        if (args != null && args.length > 0) {
            validateArgs(args);
        }

        if (map.putIfAbsent(name, Boolean.TRUE) != null) {
            throw new IllegalArgumentException(String.format("'%s' is already in use", name));
        }
        this.name = checkNotNull(name, "name");
        id = nextId.incrementAndGet();
    }

    protected UniqueName(String name) {
        this.name = checkNotNull(name, "name");
        id = nextId.incrementAndGet();
    }

    /**
     * Validates the given arguments.  This method does not do anything on its own, but must be
     * overridden by its subclasses.
     *
     * @param args arguments to validate
     */
    @SuppressWarnings("unused")
    protected void validateArgs(Object... args) {
        // Subclasses will override.
    }

    /**
     * Returns this {@link UniqueName}'s name
     *
     * @return the name
     */
    public final String name() {
        return name;
    }

    /**
     * Returns this {@link UniqueName}'s ID
     *
     * @return the id
     */
    public final int id() {
        return id;
    }

    @Override
    public final int hashCode() {
        return super.hashCode();
    }

    @Override
    public final boolean equals(Object o) {
        return super.equals(o);
    }

    @Override
    public int compareTo(UniqueName other) {
        if (this == other) {
            return 0;
        }

        int returnCode = name.compareTo(other.name);
        if (returnCode != 0) {
            return returnCode;
        }

        return ((Integer) id).compareTo(other.id);
    }

    @Override
    public String toString() {
        return name();
    }
}