hudson.util.ClockDifference Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of hudson-core Show documentation

Contains the core Hudson code and view files to render HTML.

The newest version!

/*******************************************************************************
 *
 * Copyright (c) 2004-2009 Oracle Corporation.
 *
 * 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: 
*
*    Kohsuke Kawaguchi, Seiji Sogabe, Thomas J. Black
 *     
 *
 *******************************************************************************/ 

package hudson.util;

import hudson.Util;
import hudson.model.Node;

import java.io.IOException;

import org.kohsuke.stapler.export.ExportedBean;
import org.kohsuke.stapler.export.Exported;

/**
 * Represents a clock difference. Immutable.
 *
 * @author Kohsuke Kawaguchi
 */
@ExportedBean
public final class ClockDifference {
    /**
     * The difference in milliseconds.
     *
     * Positive value means the slave is behind the master,
     * negative value means the slave is ahead of the master.
     */
    @Exported
    public final long diff;

    public ClockDifference(long value) {
        this.diff = value;
    }

    /**
     * Returns true if the difference is big enough to be considered dangerous.
     */
    public boolean isDangerous() {
        return Math.abs(diff)>5000;
    }

    /**
     * Gets the absolute value of {@link #diff}.
     */
    public long abs() {
        return Math.abs(diff);
    }

    /**
     * Gets the clock difference in HTML string.
     */
    @Override
    public String toString() {
        if(-1000";
}