Example usage for com.amazonaws.services.ec2.model VolumeAttachmentState fromValue

Introduction

In this page you can find the example usage for com.amazonaws.services.ec2.model VolumeAttachmentState fromValue.

Prototype

public static VolumeAttachmentState fromValue(String value) 

Source Link

Document

Use this in place of valueOf.

Usage

From source file:com.cloudera.director.aws.ec2.ebs.EBSAllocator.java

License:Apache License

/**
 * Wait for the specified list of volumes to be attached within a timeout.
 *
 * @param volumeIds collection of volume ids to wait for
 * @return collection of volumes that were successfully attached
 * @throws InterruptedException if the operation is interrupted
 *///from ww w .  jav  a 2s  . co m
private Collection<String> waitUntilVolumesAttached(Collection<String> volumeIds) throws InterruptedException {
    checkNotNull(volumeIds);
    if (volumeIds.isEmpty()) {
        LOG.info("No volumes are being attached, skipping wait");
        return Collections.emptySet();
    }

    Set<String> unattachedVolumes = Sets.newHashSet(volumeIds);
    Set<String> attachedVolumes = Sets.newHashSet();

    LOG.info("Waiting for a maximum of {} seconds for volumes to be attached", attachTimeoutSeconds);

    Stopwatch watch = Stopwatch.createStarted();
    while (watch.elapsed(TimeUnit.SECONDS) < attachTimeoutSeconds) {
        DescribeVolumesRequest volumeRequest = new DescribeVolumesRequest().withVolumeIds(unattachedVolumes);
        List<Volume> volumes = client.describeVolumes(volumeRequest).getVolumes();

        for (Volume volume : volumes) {
            VolumeAttachment attachment = Iterables.getOnlyElement(volume.getAttachments());
            VolumeAttachmentState state = VolumeAttachmentState.fromValue(attachment.getState());

            if (state == VolumeAttachmentState.Attached) {
                unattachedVolumes.remove(volume.getVolumeId());
                attachedVolumes.add(volume.getVolumeId());
            }
        }

        if (unattachedVolumes.isEmpty()) {
            return attachedVolumes;
        }

        LOG.info("Waiting on {} out of {} volumes to be attached, next check in {} seconds",
                unattachedVolumes.size(), volumeIds.size(), WAIT_UNTIL_ATTACHED_INTERVAL_SECONDS);
        TimeUnit.SECONDS.sleep(WAIT_UNTIL_ATTACHED_INTERVAL_SECONDS);
    }

    LOG.error("Timed out while waiting for all volumes to be attached, {} out of {} volumes were attached",
            attachedVolumes.size(), volumeIds.size());
    return attachedVolumes;
}

---