org.duracloud.common.rest.spring.XmlWebApplicationContext.java Source code

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Here is the source code for org.duracloud.common.rest.spring.XmlWebApplicationContext.java

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/*
 * The contents of this file are subject to the license and copyright
 * detailed in the LICENSE and NOTICE files at the root of the source
 * tree and available online at
 *
 *     http://duracloud.org/license/
 */
package org.duracloud.common.rest.spring;

import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.AmazonS3URI;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.S3Object;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;

/**
 * This class provides some enhancements to Spring's XmlWebApplicationContext such as support
 * for S3 Resource Urls.
 *
 * @author Daniel Bernstein
 */
public class XmlWebApplicationContext extends org.springframework.web.context.support.XmlWebApplicationContext {

    @Override
    protected Resource getResourceByPath(String path) {
        if (path.startsWith("s3://")) {
            AmazonS3 client = AmazonS3ClientBuilder.standard().build();
            AmazonS3URI s3Uri = new AmazonS3URI(path);
            S3Object s3Obj = client.getObject(new GetObjectRequest(s3Uri.getBucket(), s3Uri.getKey()));
            s3Obj.getObjectContent();

            return new InputStreamResource(s3Obj.getObjectContent());
        }
        return super.getResourceByPath(path);
    }
}