PluginManagementLink.java

package org.jvnet.hudson.plugins.monitoring;

import hudson.Extension;
import hudson.model.ManagementLink;
import org.kohsuke.stapler.Stapler;
import org.kohsuke.stapler.StaplerRequest;

/**
 * ManagementLink of the plugin to add a link in the "/manage" page.
 * @author Emeric Vernat
 */
@Extension
public class PluginManagementLink extends ManagementLink {
    /**
     * Mostly works like {@link hudson.model.Action#getIconFileName()}, except that
     * the expected icon size is 48x48, not 24x24. So if you give
     * just a file name, "/images/48x48" will be assumed.
     *
     * @return
     *      As a special case, return null to exclude this object from the management link.
     *      This is useful for defining {@link ManagementLink} that only shows up under
     *      certain circumstances.
     */
    public String getIconFileName() {
		return "monitor.gif";
	}

    /**
     * Returns a short description of what this link does. This text
     * is the one that's displayed in grey. This can include HTML,
     * although the use of block tags is highly discouraged.
     *
     * Optional.
     */
    public String getDescription() {
        return "Monitoring of memory, cpu, http requests and more in Hudson";
    }

	/**
     * Gets the string to be displayed.
     *
     * The convention is to capitalize the first letter of each word,
     * such as "Test Result". 
     */
    public String getDisplayName() {
		return "Monitoring of Hudson";
	}

    /**
     * {@inheritDoc}
     *
     * <p>
     * In case of {@link ManagementLink}, this value is put straight into the href attribute,
     * so relative paths are interpreted against the root {@link hudson.model.Hudson} object.
     */
    public String getUrlName() {
		StaplerRequest req = Stapler.getCurrentRequest();
        if (req != null) {
			return req.getContextPath() + "/monitoring";
		}
		return "/monitoring";
	}
}