org.exem.flamingo.web.filesystem.s3.AwsS3Factory.java Source code

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Here is the source code for org.exem.flamingo.web.filesystem.s3.AwsS3Factory.java

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/*
 * Copyright 2012-2016 the Flamingo Community.
 *
 * Licensed 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.exem.flamingo.web.filesystem.s3;

import com.amazonaws.ClientConfiguration;
import com.amazonaws.Protocol;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;

import java.io.IOException;
import java.io.InputStream;

class AwsS3Factory {

    /**
     * Classpath? <tt>aws.properties</tt> ??  .
     * <tt>aws.properties</tt> ?? <tt>accessKey</tt> <tt>secretKey</tt>? ?? .
     *
     * @return {@link AmazonS3}
     * @throws IOException Classpath? <tt>aws.properties</tt> ??    
     */
    public static AmazonS3 createS3Client() throws IOException {
        InputStream is = AwsS3Factory.class.getResourceAsStream("/aws.properties");
        return createS3Client(is);
    }

    /**
     * Properties? Input Stream? ? .
     * Properties? <tt>accessKey</tt> <tt>secretKey</tt>? ?? .
     *
     * @return {@link AmazonS3}
     * @throws IOException Properties ?? Input Stream?    
     */
    private static AmazonS3 createS3Client(InputStream is) throws IOException {
        AWSCredentials credentials = new PropertiesCredentials(is);
        ClientConfiguration clientConfig = new ClientConfiguration();
        clientConfig.setProtocol(Protocol.HTTP);
        return new AmazonS3Client(credentials, clientConfig);
    }
}