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/*
 * Copyright (C) FuseSource, Inc.
 *   http://fusesource.com
 *
 *   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.fusesource.fabric.commands;

import java.util.ArrayList;
import java.util.List;
import org.apache.felix.gogo.commands.Argument;
import org.apache.felix.gogo.commands.Command;
import org.fusesource.fabric.api.Container;
import org.fusesource.fabric.boot.commands.support.FabricCommand;

@Command(name = "container-resolver-list", scope = "fabric", description = "List the resolver policy and the host data for each container in the fabric", detailedDescription = "classpath:containerResolverList.txt")
public class ContainerResolverList extends FabricCommand {

    static final String FORMAT = "%-16s %-16s %-16s %-16s %-32s %-16s %-32s";
    static final String[] HEADERS = {"[id]", "[resolver]", "[local hostname]", "[local ip]" ,"[public hostname]", "[public ip]", "[manual ip]"};

    @Argument(index = 0, name = "container", description = "The list of containers to display. Empty list assumes current container only.", required = false, multiValued = true)
    private List containerIds;

    @Override
    protected Object doExecute() throws Exception {
        checkFabricAvailable();

        if (containerIds == null || containerIds.isEmpty()) {
            containerIds = new ArrayList();
            for (Container container : fabricService.getContainers()) {
                containerIds.add(container.getId());
            }
        }
        System.out.println(String.format(FORMAT, HEADERS));
        for (String containerId:containerIds) {
            Container container = fabricService.getContainer(containerId);
            String localHostName = container.getLocalHostname();
            String localIp = container.getLocalIp();
            String publicHostName = container.getPublicHostname();
            String publicIp = container.getPublicIp();
            String manualIp = container.getManulIp();

            localHostName = localHostName != null ? localHostName : "";
            localIp = localIp != null ? localIp : "";
            publicHostName = publicHostName != null ? publicHostName : "";
            publicIp = publicIp != null ? publicIp : "";
            manualIp = manualIp != null ? manualIp : "";

            String resolver = container.getResolver();
            System.out.println(String.format(FORMAT, containerId, resolver, localHostName,localIp,publicHostName,publicIp,manualIp));
        }
        return null;
    }
}