Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License 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 org.apache.usergrid.persistence.queue.impl; import java.util.Properties; import org.apache.commons.lang.StringUtils; import com.amazonaws.AmazonClientException; import com.amazonaws.SDKGlobalConfiguration; import com.amazonaws.auth.AWSCredentials; import com.amazonaws.auth.AWSCredentialsProvider; /** * Pulls the aws keys from system properties. */ public class UsergridAwsCredentialsProvider implements AWSCredentialsProvider { private AWSCredentials creds = new UsergridAwsCredentials(); public UsergridAwsCredentialsProvider() { init(); } private void init() { if (StringUtils.isEmpty(creds.getAWSAccessKeyId())) { throw new AmazonClientException("could not get aws access key from system properties"); } if (StringUtils.isEmpty(creds.getAWSSecretKey())) { throw new AmazonClientException("could not get aws secret key from system properties"); } } @Override public AWSCredentials getCredentials() { return creds; } @Override public void refresh() { init(); } }