org.apache.samza.system.kinesis.KinesisAWSCredentialsProvider.java Source code

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Here is the source code for org.apache.samza.system.kinesis.KinesisAWSCredentialsProvider.java

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/*
 * 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.samza.system.kinesis;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;

/**
 * AWSCredentialsProvider implementation that takes in accessKey and secretKey directly. Requires both accessKey and
 * secretKey to be non-null for it to create a BasicAWSCredentials instance. Otherwise, it creates an AWSCredentials
 * instance with null keys.
 */
public class KinesisAWSCredentialsProvider implements AWSCredentialsProvider {
    private final AWSCredentials creds;
    private static final Logger LOG = LoggerFactory.getLogger(KinesisAWSCredentialsProvider.class.getName());

    public KinesisAWSCredentialsProvider(String accessKey, String secretKey) {
        if (StringUtils.isEmpty(accessKey) || StringUtils.isEmpty(secretKey)) {
            creds = new AWSCredentials() {
                @Override
                public String getAWSAccessKeyId() {
                    return null;
                }

                @Override
                public String getAWSSecretKey() {
                    return null;
                }
            };
            LOG.info("Could not load credentials from KinesisAWSCredentialsProvider");
        } else {
            creds = new BasicAWSCredentials(accessKey, secretKey);
            LOG.info("Loaded credentials from KinesisAWSCredentialsProvider");
        }
    }

    @Override
    public AWSCredentials getCredentials() {
        return creds;
    }

    @Override
    public void refresh() {
        //no-op
    }
}