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HudsonHomeDiskUsageMonitor.java
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HudsonHomeDiskUsageMonitor.java
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/*
* The MIT License
*
* Copyright (c) 2004-2009, Sun Microsystems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.diagnosis;
import hudson.model.AdministrativeMonitor;
import hudson.model.AbstractModelObject;
import hudson.Extension;
import hudson.ExtensionPoint;
import hudson.ExtensionList;
import org.jenkinsci.Symbol;
import org.kohsuke.stapler.HttpResponse;
import org.kohsuke.stapler.HttpResponses;
import org.kohsuke.stapler.QueryParameter;
import java.io.IOException;
import java.util.List;
/**
* Monitors the disk usage of <tt>JENKINS_HOME</tt>, and if it's almost filled up, warn the user.
*
* @author Kohsuke Kawaguchi
*/
@Extension @Symbol("diskUsageCheck")
public final class HudsonHomeDiskUsageMonitor extends AdministrativeMonitor {
/**
* Value updated by {@link HudsonHomeDiskUsageChecker}.
*/
/*package*/ boolean activated;
public HudsonHomeDiskUsageMonitor() {
super("hudsonHomeIsFull");
}
public boolean isActivated() {
return activated;
}
@Override
public String getDisplayName() {
return Messages.HudsonHomeDiskUsageMonitor_DisplayName();
}
/**
* Depending on whether the user said "yes" or "no", send him to the right place.
*/
public HttpResponse doAct(@QueryParameter String no) throws IOException {
if(no!=null) {
disable(true);
return HttpResponses.redirectViaContextPath("/manage");
} else {
return HttpResponses.redirectToDot();
}
}
public List<Solution> getSolutions() {
return Solution.all();
}
/**
* Binds a solution to the URL.
*/
public Solution getSolution(String id) {
for( Solution s : Solution.all() )
if(s.id.equals(id))
return s;
return null;
}
/**
* Short cut for getting the singleton instance.
*/
public static HudsonHomeDiskUsageMonitor get() {
return all().get(HudsonHomeDiskUsageMonitor.class);
}
/**
* Extension point for suggesting solutions for full JENKINS_HOME.
*
* <h3>Views</h3>
* <dl>
* <dt>message.jelly</dt>
* <dd>
* This view is rendered inside an LI tag as a possible solution to the full JENKINS_HOME problem.
* </dd>
* </dl>
*/
public static abstract class Solution extends AbstractModelObject implements ExtensionPoint {
/**
* Human-readable ID of this monitor, which needs to be unique within the system.
*
* <p>
* This ID is used to remember persisted setting for this monitor,
* so the ID should remain consistent beyond the Hudson JVM lifespan.
*/
public final String id;
protected Solution(String id) {
this.id = id;
}
protected Solution() {
this.id = this.getClass().getName();
}
/**
* Returns the URL of this monitor, relative to the context path.
*/
public String getUrl() {
return HudsonHomeDiskUsageMonitor.get().getUrl()+"/solution/"+id;
}
/**
* All registered {@link Solution}s.
*/
public static ExtensionList<Solution> all() {
return ExtensionList.lookup(Solution.class);
}
}
}