object getkey java_Java S3Object.getKey方法代码示例
import com.amazonaws.services.s3.model.S3Object; //导入方法依赖的package包/类
private S3Object decipher(GetObjectRequest req,
long[] desiredRange, long[] cryptoRange,
S3Object retrieved) {
S3ObjectWrapper wrapped = new S3ObjectWrapper(retrieved, req.getS3ObjectId());
// Check if encryption info is in object metadata
if (wrapped.hasEncryptionInfo())
return decipherWithMetadata(req, desiredRange, cryptoRange, wrapped);
// Check if encrypted info is in an instruction file
S3ObjectWrapper ifile = fetchInstructionFile(req.getS3ObjectId(), null);
if (ifile != null) {
try {
return decipherWithInstructionFile(req, desiredRange,
cryptoRange, wrapped, ifile);
} finally {
closeQuietly(ifile, log);
}
}
if (isStrict() || !cryptoConfig.isIgnoreMissingInstructionFile()) {
closeQuietly(wrapped, log);
throw new SecurityException("Instruction file not found for S3 object with bucket name: "
+ retrieved.getBucketName() + ", key: "
+ retrieved.getKey());
}
// To keep backward compatible:
// ignore the missing instruction file and treat the object as un-encrypted.
log.warn(String.format(
"Unable to detect encryption information for object '%s' in bucket '%s'. "
+ "Returning object without decryption.",
retrieved.getKey(),
retrieved.getBucketName()));
// Adjust the output to the desired range of bytes.
S3ObjectWrapper adjusted = adjustToDesiredRange(wrapped, desiredRange, null);
return adjusted.getS3Object();
}
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