com.meltmedia.cadmium.core.commands.ExternalIpCommandAction.java Source code

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Here is the source code for com.meltmedia.cadmium.core.commands.ExternalIpCommandAction.java

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/**
 *    Copyright 2012 meltmedia
 *
 *    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 com.meltmedia.cadmium.core.commands;

import javax.inject.Inject;

import org.apache.commons.lang3.StringUtils;

import com.meltmedia.cadmium.core.CommandAction;
import com.meltmedia.cadmium.core.CommandContext;
import com.meltmedia.cadmium.core.messaging.MembershipTracker;
import com.meltmedia.cadmium.core.messaging.ProtocolMessage;

/**
 * This command action will process messages to update the external ip address of a member of this cluster.
 * 
 * @author John McEntire
 *
 */
public class ExternalIpCommandAction implements CommandAction<ExternalIpMessage> {

    @Inject
    protected MembershipTracker membershipTracker;

    @Override
    public String getName() {
        return ProtocolMessage.EXTERNAL_IP_MESSAGE;
    }

    @Override
    public boolean execute(CommandContext<ExternalIpMessage> ctx) throws Exception {
        if (StringUtils.isNotBlank(ctx.getMessage().getBody().getIp())) {
            membershipTracker.updateMembersIp(ctx.getSource(), ctx.getMessage().getBody().getIp());
        }
        return true;
    }

    @Override
    public void handleFailure(CommandContext<ExternalIpMessage> ctx, Exception e) {
    }

}