jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/api/ha/HaInfo.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.ws.api.ha;

    28 import com.sun.xml.internal.ws.api.message.Packet;

    30 /**

    31  * This class has HA information

    32  * <p>

    33  *

    34  * This would help a loadbalancer to put the request(in case of a fail-over)

    35  * on a replica instance that has all the related data. Even if there is no

    36  * loadbalancer, a backing store could locate the information by directly

    37  * going to the correct replica instance. This would also help any part of

    38  * the runtime to know about failover case(and in-turn may invalidate

    39  * local caches).

    40  *

    41  * <p>

    42  * To achieve this functionality, it carries two pieces of information:

    43  * <ol>

    44  * <li>key - Related {@link com.sun.org.glassfish.ha.store.api.BackingStore} keys can

    45  * use this info for their HashableKey impl. First store creates this object,

    46  * and subsequent related stores use the same key.

    47  * <li>replicaInstance - where the related info is replicated

    48  * </ol>

    49  *

    50  * <p>

    51  * This can be accessed from {@link Packet} using {@link Packet#HA_INFO}

    52  * property by the runtime. This object is created typically

    53  * <ul>

    54  * <li> When a store happens for the first time

    55  * <li> A subsequent inbound transport creates from cookies

    56  * <li> A fail-over request stores the data to a different replica

    57  * </ul>

    58  *

    59  * @author Jitendra Kotamraju

    60  * @since JAX-WS RI 2.2.2

    61  */

    62 public class HaInfo {

    63     private final String replicaInstance;

    64     private final String key;

    65     private final boolean failOver;

    67     public HaInfo(String key, String replicaInstance, boolean failOver) {

    68         this.key = key;

    69         this.replicaInstance = replicaInstance;

    70         this.failOver = failOver;

    71     }

    73     public String getReplicaInstance() {

    74         return replicaInstance;

    75     }

    77     public String getKey() {

    78         return key;

    79     }

    81     public boolean isFailOver() {

    82         return failOver;

    83     }

    84 }

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