protected String getImageId(String imageName) {
DescribeImagesRequest describeImagesRequest = new DescribeImagesRequest();
List<Filter> filters = new ArrayList<Filter>();
Filter filter = new Filter();
filter.setName("name");
List<String> values = new ArrayList<String>();
values.add(imageName);
filter.setValues(values);
filters.add(filter);
describeImagesRequest.setFilters(filters);
DescribeImagesResult describeImagesResult =
amazonEC2Client.describeImages(describeImagesRequest);
List<Image> images = describeImagesResult.getImages();
if (images.isEmpty()) {
throw new RuntimeException("Image " + imageName + " does not exist");
}
Image image = images.get(0);
return image.getImageId();
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof DescribeImagesResult == false) return false;
DescribeImagesResult other = (DescribeImagesResult) obj;
if (other.getImages() == null ^ this.getImages() == null) return false;
if (other.getImages() != null && other.getImages().equals(this.getImages()) == false)
return false;
return true;
}
/**
* Describe a set of specific images.
*
* @param imageIds the image ids
* @return the images
*/
public List<Image> describeImages(String... imageIds) {
if (imageIds == null || imageIds.length == 0) {
LOGGER.info("Getting all AMIs.");
} else {
LOGGER.info(String.format("Getting AMIs for %d ids.", imageIds.length));
}
AmazonEC2 ec2Client = ec2Client();
DescribeImagesRequest request = new DescribeImagesRequest();
if (imageIds != null) {
request.setImageIds(Arrays.asList(imageIds));
}
DescribeImagesResult result = ec2Client.describeImages(request);
List<Image> images = result.getImages();
LOGGER.info(String.format("Got %d AMIs.", images.size()));
return images;
}
private static void putCache() throws CacheException {
if (amazon == null) amazon = JCS.getInstance("Instances");
synchronized (AmazonService.class) {
amazon.clear();
DescribeInstancesResult result = amazonClient.describeInstances();
for (Reservation r : result.getReservations()) {
for (Instance i : r.getInstances()) {
amazon.putInGroup(i.getInstanceId(), "Instances", i);
}
}
DescribeImagesRequest ir = new DescribeImagesRequest().withOwners("self");
DescribeImagesResult images = amazonClient.describeImages(ir);
for (Image r : images.getImages()) {
amazon.putInGroup(r.getImageId(), "AMIs", r);
}
log.debug("put cache finished");
}
}