##### Coverage Report - com.sun.grizzly.SingleProtocolChainInstanceHandler

Classes in this File | Line Coverage | Branch Coverage | Complexity
SingleProtocolChainInstanceHandler |
0 % | 0/17
0 % | 0/6
| 1.6666666666666667;1,667

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     /*
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      *
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      * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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      *
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      * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
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      *
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      * The contents of this file are subject to the terms of either the GNU
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      * General Public License Version 2 only ("GPL") or the Common Development
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      * and Distribution License("CDDL") (collectively, the "License").  You
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      * may not use this file except in compliance with the License. You can obtain
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      * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
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      * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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      * language governing permissions and limitations under the License.
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      *
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      * When distributing the software, include this License Header Notice in each
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      * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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      * Sun designates this particular file as subject to the "Classpath" exception
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      * as provided by Sun in the GPL Version 2 section of the License file that
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      * accompanied this code.  If applicable, add the following below the License
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      * Header, with the fields enclosed by brackets [] replaced by your own
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      * identifying information: "Portions Copyrighted [year]
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      * [name of copyright owner]"
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      *
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      * Contributor(s):
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      *
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      * If you wish your version of this file to be governed by only the CDDL or
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      * only the GPL Version 2, indicate your decision by adding "[Contributor]
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      * elects to include this software in this distribution under the [CDDL or GPL
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      * Version 2] license."  If you don't indicate a single choice of license, a
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      * recipient has the option to distribute your version of this file under
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      * either the CDDL, the GPL Version 2 or to extend the choice of license to
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      * its licensees as provided above.  However, if you add GPL Version 2 code
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      * and therefore, elected the GPL Version 2 license, then the option applies
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      * only if the new code is made subject to such option by the copyright
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      * holder.
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      *
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      */
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     package com.sun.grizzly;
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     /**
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      * Implementation of an {@link ProtocolChainInstanceHandler}.
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      * Contains single {@link ProtocolChain} instance, which will be returned all
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      * the time {@link ProtocolChainInstanceHandler#poll()} will be called.
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      *
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      * @author Jeanfrancois Arcand
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      */
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     public class SingleProtocolChainInstanceHandler
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                 implements ProtocolChainInstanceHandler{
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         /**
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          * Single {@link ProtocolChain} instance.
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          */
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         protected volatile ProtocolChain protocolChain;
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         public SingleProtocolChainInstanceHandler() {
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             this(null);
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         }
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         public SingleProtocolChainInstanceHandler(ProtocolChain protocolChain) {
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             this.protocolChain = protocolChain;
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         }
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         /**
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          * Return a {@link ProtocolChain} instance. If no {@link ProtocolChain} was
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          * set before, then new instance of {@link DefaultProtocolChain}
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          * will be returned.
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          *
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          * @return <tt>ProtocolChain</tt>
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          */
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         public ProtocolChain poll() {
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             if (protocolChain == null) {
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                 synchronized(this) {
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                     if (protocolChain == null) {
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                         protocolChain = new DefaultProtocolChain();
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                     }
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                 }
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             }
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             return protocolChain;
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         }
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         /**
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          * Offer (add) an instance of ProtocolChain to this instance pool.
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          * {@link StatelessProtocolChainInstanceHandler} has empty implementation
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          * of the method.
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          *
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          * @param protocolChain - <tt>ProtocolChain</tt> to offer / add to the pool
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          * @return boolean, true is always returned.
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          */
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         public boolean offer(ProtocolChain protocolChain) {
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             if (this.protocolChain != protocolChain) {
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                 throw new IllegalArgumentException("Passed protocolChain argument " +
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                         "doesn't correspond to one, holding by this handler instance");
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             }
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             return true;
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         }
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         /**
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          * Get the stateless {@link ProtocolChain} instance, which is always
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          * returned via {@link StatelessProtocolChainInstanceHandler#poll()}.
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          *
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          * @return the stateless {@link ProtocolChain} instance, which is always
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          * returned via {@link StatelessProtocolChainInstanceHandler#poll()}.
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          */
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         public ProtocolChain getProtocolChain() {
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             return protocolChain;
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         }
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         /**
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          * Set the stateless {@link ProtocolChain} instance, which will be always
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          * returned via {@link StatelessProtocolChainInstanceHandler#poll()}.
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          *
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          * @param protocolChain the stateless {@link ProtocolChain} instance,
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          * which will be always returned via
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          * {@link StatelessProtocolChainInstanceHandler#poll()}.
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          */
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         public void setProtocolChain(ProtocolChain protocolChain) {
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             this.protocolChain = protocolChain;
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         }
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     }