Examples with Cacheable com.jcabi.aspects.Cacheable used on opensource projects

Example 1 with Cacheable

use of com.jcabi.aspects.Cacheable in project jcabi-dynamo by jcabi.

the class AwsTable method keys.

/**
 * Get names of keys.
 * @return Names of attributes, which are primary keys
 * @throws IOException If DynamoDB fails
 */
@Cacheable(forever = true)
public Collection<String> keys() throws IOException {
    final AmazonDynamoDB aws = this.credentials.aws();
    try {
        final long start = System.currentTimeMillis();
        final DescribeTableResult result = aws.describeTable(new DescribeTableRequest().withTableName(this.self));
        final Collection<String> keys = new LinkedList<String>();
        for (final KeySchemaElement key : result.getTable().getKeySchema()) {
            keys.add(key.getAttributeName());
        }
        Logger.info(this, "#keys(): table %s described, in %[ms]s", this.self, System.currentTimeMillis() - start);
        return keys;
    } catch (final AmazonClientException ex) {
        throw new IOException(String.format("Failed to describe \"%s\"", this.self), ex);
    } finally {
        aws.shutdown();
    }
}