org.apache.tajo.storage.s3.BasicAWSCredentialsProvider.java Source code

Introduction

Here is the source code for org.apache.tajo.storage.s3.BasicAWSCredentialsProvider.java

Source

/**
 * 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.tajo.storage.s3;

import com.amazonaws.AmazonClientException;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import org.apache.commons.lang.StringUtils;

/**
 * Borrow from org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider.
 *
 */
public class BasicAWSCredentialsProvider implements AWSCredentialsProvider {
    private final String accessKey;
    private final String secretKey;

    public BasicAWSCredentialsProvider(String accessKey, String secretKey) {
        this.accessKey = accessKey;
        this.secretKey = secretKey;
    }

    public AWSCredentials getCredentials() {
        if (!StringUtils.isEmpty(accessKey) && !StringUtils.isEmpty(secretKey)) {
            return new BasicAWSCredentials(accessKey, secretKey);
        }
        throw new AmazonClientException("Access key or secret key is null");
    }

    public void refresh() {
    }

    @Override
    public String toString() {
        return getClass().getSimpleName();
    }

}