org.eclipse.gyrex.cloud.internal.zk.console.GateStatusCmd.java Source code

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/*******************************************************************************
 * Copyright (c) 2011, 2013 AGETO Service GmbH and others.
 * All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors:
 *     Gunnar Wagenknecht - initial API and implementation
 *******************************************************************************/
package org.eclipse.gyrex.cloud.internal.zk.console;

import org.eclipse.gyrex.cloud.internal.zk.GateDownException;
import org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate;
import org.eclipse.gyrex.common.console.Command;

import org.apache.commons.lang.time.DateFormatUtils;
import org.apache.zookeeper.ZooKeeper;

public class GateStatusCmd extends Command {

    /**
     * Creates a new instance.
     */
    public GateStatusCmd() {
        super("prints the ZooKeeper gate status");
    }

    @Override
    protected void doExecute() throws Exception {
        try {
            final ZooKeeperGate gate = ZooKeeperGate.get();
            final ZooKeeper zk = gate.getZooKeeper();
            printf("Connect String: %s", gate.getConnectString());
            printf("       Timeout: %dms", gate.getSessionTimeout());
            if (gate.getLastStateChangeTimestamp() > 0L) {
                printf("         State: %s (since %s)", zk.getState(),
                        DateFormatUtils.SMTP_DATETIME_FORMAT.format(gate.getLastStateChangeTimestamp()));
            } else {
                printf("         State: %s (initial state)", zk.getState());
            }
            printf("       Session: 0x%s", Long.toHexString(zk.getSessionId()));
            printf("    Connection: %s", gate.getConnectedServerInfo());
        } catch (final GateDownException e) {
            printf("Gate is down.");
        }
    }
}