org.jboss.ejb.client.UUIDSessionID Maven / Gradle / Ivy

Go to download

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: 34.0.0.Final

Show newest version

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2017 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.ejb.client;

import java.nio.ByteBuffer;
import java.util.UUID;

/**
 * A UUID-based session ID object.
 *
 * @author David M. Lloyd
 */
public final class UUIDSessionID extends SessionID {

    private static final long serialVersionUID = -7306257085240447972L;

    private final UUID uuid;

    UUIDSessionID(final byte[] encodedForm) {
        super(encodedForm);
        if (encodedForm[0] != 0x09) {
            throw wrongFormat();
        }
        final ByteBuffer bb = ByteBuffer.wrap(encodedForm);
        bb.get();
        // big-endian
        uuid = new UUID(bb.getLong(), bb.getLong());
    }

    /**
     * Construct a new instance.
     *
     * @param uuid the UUID to use (must not be {@code null})
     */
    public UUIDSessionID(final UUID uuid) {
        super(encode(uuid));
        this.uuid = uuid;
    }

    private static byte[] encode(final UUID uuid) {
        final ByteBuffer bb = ByteBuffer.wrap(new byte[17]);
        bb.put((byte) 0x09);
        bb.putLong(uuid.getMostSignificantBits());
        bb.putLong(uuid.getLeastSignificantBits());
        return bb.array();
    }

    /**
     * Get the UUID.
     *
     * @return the UUID (must not be {@code null})
     */
    public UUID getUuid() {
        return uuid;
    }

    private static IllegalArgumentException wrongFormat() {
        return new IllegalArgumentException("Wrong session ID format");
    }

    @Override
    public String toString() {
        return String.format("%s [%s]", getClass().getSimpleName(), uuid);
    }
}