Java tutorial
/* * Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file is distributed * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing * permissions and limitations under the License. */ package com.alertlogic.aws.analytics.poc; import com.amazonaws.ClientConfiguration; import com.amazonaws.regions.Region; import com.amazonaws.regions.RegionUtils; /** * A collection of utilities for the Amazon Kinesis sample application. */ public class Utils { /** * Creates a new client configuration with a uniquely identifiable value for this sample application. * * @param clientConfig The client configuration to copy. * @return A new client configuration based on the provided one with its user agent overridden. */ public static ClientConfiguration configureUserAgentForSample(ClientConfiguration clientConfig) { ClientConfiguration newConfig = new ClientConfiguration(clientConfig); StringBuilder userAgent = new StringBuilder(ClientConfiguration.DEFAULT_USER_AGENT); // Separate regions of the UserAgent with a space userAgent.append(" "); // Append the repository name followed by version number of the sample userAgent.append("alertlogic-aws-analytics-poc/1.0.0"); newConfig.setUserAgent(userAgent.toString()); return newConfig; } /** * Creates a Region object corresponding to the AWS Region. If an invalid region is passed in * then the JVM is terminated with an exit code of 1. * * @param regionStr the common name of the region for e.g. 'us-east-1'. * @return A Region object corresponding to regionStr. */ public static Region parseRegion(String regionStr) { Region region = RegionUtils.getRegion(regionStr); if (region == null) { System.err.println(regionStr + " is not a valid AWS region."); System.exit(1); } return region; } }