Example usage for com.amazonaws.services.s3.model ObjectMetadata setContentMD5

Introduction

In this page you can find the example usage for com.amazonaws.services.s3.model ObjectMetadata setContentMD5.

Prototype

public void setContentMD5(String md5Base64)

Source Link

Document

Sets the base64 encoded 128-bit MD5 digest of the associated object (content - not including headers) according to RFC 1864.

Usage

From source file:org.springframework.integration.aws.s3.core.DefaultAmazonS3Operations.java

License:Apache License

/**
 * The implementation puts the given {@link File} instance to the provided bucket against
 * the given key.// w  ww .  j  a  v a 2 s .c om
 *
 * @param bucketName The bucket on S3 where this object is to be put
 * @param key The key against which this Object is to be stored in S3
 * @param file resource to be uploaded to S3
 * @param objectACL the Object's Access controls for the object to be uploaded
 * @param userMetadata The user's metadata to be associated with the object uploaded
 * @param stringContentMD5 The MD5 sum of the contents of the file to be uploaded
 */
@Override
public void doPut(String bucketName, String key, File file, AmazonS3ObjectACL objectACL,
        Map<String, String> userMetadata, String stringContentMD5) {

    ObjectMetadata metadata = new ObjectMetadata();
    PutObjectRequest request = new PutObjectRequest(bucketName, key, file);

    request.withMetadata(metadata);

    if (stringContentMD5 != null) {
        metadata.setContentMD5(stringContentMD5);
    }

    if (userMetadata != null) {
        metadata.setUserMetadata(userMetadata);
    }

    Upload upload;
    try {
        upload = transferManager.upload(request);
    } catch (Exception e) {
        throw new AmazonS3OperationException(credentials.getAccessKey(), bucketName, key,
                "Encountered Exception while invoking upload on multipart/single thread file, "
                        + "see nested exceptions for more details",
                e);
    }
    //Wait till the upload completes, the call to putObject is synchronous
    try {
        if (logger.isInfoEnabled()) {
            logger.info("Waiting for Upload to complete");
        }
        upload.waitForCompletion();
        if (logger.isInfoEnabled()) {
            logger.info("Upload completed");
        }
    } catch (Exception e) {
        throw new AmazonS3OperationException(credentials.getAccessKey(), bucketName, key,
                "Encountered Exception while uploading the multipart/single thread file, "
                        + "see nested exceptions for more details",
                e);
    }
    //Now since the object is present on S3, set the AccessControl list on it
    //Please note that it is not possible to set the object ACL with the
    //put object request, and hence both these operations cannot be atomic
    //it is possible the objects is uploaded and the ACl not set due to some
    //failure

    if (objectACL != null) {
        if (logger.isInfoEnabled()) {
            logger.info("Setting Access control list for key " + key);
        }
        try {
            client.setObjectAcl(bucketName, key, getAccessControlList(bucketName, key, objectACL));
        } catch (Exception e) {
            throw new AmazonS3OperationException(credentials.getAccessKey(), bucketName, key,
                    "Encountered Exception while setting the Object ACL for key , " + key
                            + "see nested exceptions for more details",
                    e);
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Successfully set the object ACL");
        }
    }
}