/*
* 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.node_monitors;
import hudson.Extension;
import hudson.FilePath;
import jenkins.MasterToSlaveFileCallable;
import hudson.model.Computer;
import hudson.model.Node;
import hudson.remoting.Callable;
import jenkins.model.Jenkins;
import hudson.node_monitors.DiskSpaceMonitorDescriptor.DiskSpace;
import hudson.remoting.VirtualChannel;
import org.jenkinsci.Symbol;
import org.kohsuke.stapler.DataBoundConstructor;
import java.io.File;
import java.io.IOException;
import java.text.ParseException;
/**
* Monitors the disk space of "/tmp".
*
* @author Kohsuke Kawaguchi
*/
public class TemporarySpaceMonitor extends AbstractDiskSpaceMonitor {
@DataBoundConstructor
public TemporarySpaceMonitor(String freeSpaceThreshold) throws ParseException {
super(freeSpaceThreshold);
}
public TemporarySpaceMonitor() {}
public DiskSpace getFreeSpace(Computer c) {
return DESCRIPTOR.get(c);
}
@Override
public String getColumnCaption() {
// Hide this column from non-admins
return Jenkins.getInstance().hasPermission(Jenkins.ADMINISTER) ? super.getColumnCaption() : null;
}
/**
* @deprecated as of 2.0
* Use injection
*/
public static /*almost final*/ DiskSpaceMonitorDescriptor DESCRIPTOR;
@Extension @Symbol("tmpSpace")
public static class DescriptorImpl extends DiskSpaceMonitorDescriptor {
public DescriptorImpl() {
DESCRIPTOR = this;
}
public String getDisplayName() {
return Messages.TemporarySpaceMonitor_DisplayName();
}
@Override
protected Callable<DiskSpace,IOException> createCallable(Computer c) {
Node node = c.getNode();
if (node == null) return null;
FilePath p = node.getRootPath();
if(p==null) return null;
return p.asCallableWith(new GetTempSpace());
}
}
/**
* @deprecated as of 2.0
*/
public static DiskSpaceMonitorDescriptor install() {
return DESCRIPTOR;
}
protected static final class GetTempSpace extends MasterToSlaveFileCallable<DiskSpace> {
public DiskSpace invoke(File f, VirtualChannel channel) throws IOException {
// if the disk is really filled up we can't even create a single file,
// so calling File.createTempFile and figuring out the directory won't reliably work.
f = new File(System.getProperty("java.io.tmpdir"));
long s = f.getUsableSpace();
if(s<=0) return null;
return new DiskSpace(f.getCanonicalPath(), s);
}
private static final long serialVersionUID = 1L;
}
}