Examples with Response org.apache.catalina.tribes.group.Response used on opensource projects

Example 6 with Response

use of org.apache.catalina.tribes.group.Response in project tomcat70 by apache.

the class AbstractReplicatedMap method transferState.

public void transferState() {
    try {
        Member[] members = getMapMembers();
        Member backup = members.length > 0 ? (Member) members[0] : null;
        if (backup != null) {
            MapMessage msg = new MapMessage(mapContextName, getStateMessageType(), false, null, null, null, null, null);
            Response[] resp = rpcChannel.send(new Member[] { backup }, msg, RpcChannel.FIRST_REPLY, channelSendOptions, rpcTimeout);
            if (resp.length > 0) {
                synchronized (stateMutex) {
                    msg = (MapMessage) resp[0].getMessage();
                    msg.deserialize(getExternalLoaders());
                    ArrayList<?> list = (ArrayList<?>) msg.getValue();
                    for (int i = 0; i < list.size(); i++) {
                        messageReceived((Serializable) list.get(i), resp[0].getSource());
                    }
                // for
                }
                stateTransferred = true;
            } else {
                log.warn("Transfer state, 0 replies, probably a timeout.");
            }
        }
    } catch (ChannelException x) {
        log.error("Unable to transfer AbstractReplicatedMap state.", x);
    } catch (IOException x) {
        log.error("Unable to transfer AbstractReplicatedMap state.", x);
    } catch (ClassNotFoundException x) {
        log.error("Unable to transfer AbstractReplicatedMap state.", x);
    }
    this.state = State.STATETRANSFERRED;
}

Example 7 with Response

use of org.apache.catalina.tribes.group.Response in project tomcat by apache.

the class AbstractReplicatedMap method broadcast.

/**
 * Helper method to broadcast a message to all members in a channel
 * @param msgtype int
 * @param rpc boolean
 * @throws ChannelException Send error
 */
protected void broadcast(int msgtype, boolean rpc) throws ChannelException {
    Member[] members = channel.getMembers();
    // No destination.
    if (members.length == 0) {
        return;
    }
    // send out a map membership message, only wait for the first reply
    MapMessage msg = new MapMessage(this.mapContextName, msgtype, false, null, null, null, channel.getLocalMember(false), null);
    if (rpc) {
        Response[] resp = rpcChannel.send(members, msg, RpcChannel.FIRST_REPLY, (channelSendOptions), rpcTimeout);
        if (resp.length > 0) {
            for (Response response : resp) {
                mapMemberAdded(response.getSource());
                messageReceived(response.getMessage(), response.getSource());
            }
        } else {
            log.warn(sm.getString("abstractReplicatedMap.broadcast.noReplies"));
        }
    } else {
        channel.send(channel.getMembers(), msg, channelSendOptions);
    }
}

Example 8 with Response

use of org.apache.catalina.tribes.group.Response in project tomcat by apache.

the class AbstractReplicatedMap method ping.

/**
 * Sends a ping out to all the members in the cluster, not just map members
 * that this map is alive.
 * @param timeout long
 * @throws ChannelException Send error
 */
protected void ping(long timeout) throws ChannelException {
    MapMessage msg = new MapMessage(this.mapContextName, MapMessage.MSG_PING, false, null, null, null, channel.getLocalMember(false), null);
    if (channel.getMembers().length > 0) {
        try {
            // send a ping, wait for all nodes to reply
            Response[] resp = rpcChannel.send(channel.getMembers(), msg, RpcChannel.ALL_REPLY, (channelSendOptions), (int) accessTimeout);
            for (Response response : resp) {
                MapMessage mapMsg = (MapMessage) response.getMessage();
                try {
                    mapMsg.deserialize(getExternalLoaders());
                    Member member = response.getSource();
                    State state = (State) mapMsg.getValue();
                    if (state.isAvailable()) {
                        memberAlive(member);
                    } else if (state == State.STATETRANSFERRED) {
                        synchronized (mapMembers) {
                            if (log.isInfoEnabled()) {
                                log.info(sm.getString("abstractReplicatedMap.ping.stateTransferredMember", member));
                            }
                            if (mapMembers.containsKey(member)) {
                                mapMembers.put(member, Long.valueOf(System.currentTimeMillis()));
                            }
                        }
                    } else {
                        if (log.isInfoEnabled()) {
                            log.info(sm.getString("abstractReplicatedMap.mapMember.unavailable", member));
                        }
                    }
                } catch (ClassNotFoundException | IOException e) {
                    log.error(sm.getString("abstractReplicatedMap.unable.deserialize.MapMessage"), e);
                }
            }
        } catch (ChannelException ce) {
            // Handle known failed members
            FaultyMember[] faultyMembers = ce.getFaultyMembers();
            for (FaultyMember faultyMember : faultyMembers) {
                memberDisappeared(faultyMember.getMember());
            }
            throw ce;
        }
    }
    // update our map of members, expire some if we didn't receive a ping back
    synchronized (mapMembers) {
        Member[] members = mapMembers.keySet().toArray(new Member[0]);
        long now = System.currentTimeMillis();
        for (Member member : members) {
            long access = mapMembers.get(member).longValue();
            if ((now - access) > timeout) {
                log.warn(sm.getString("abstractReplicatedMap.ping.timeout", member, mapname));
                memberDisappeared(member);
            }
        }
    }
// synch
}