Following code is used to read blob chunk by chunk:
try (ReadChannel reader = blob.reader()) {
WritableByteChannel channel = Channels.newChannel(outputStream);
ByteBuffer bytes = ByteBuffer.allocate(64 * 1024);
while (reader.read(bytes) > 0) {
bytes.flip();
channel.write(bytes);
bytes.clear();
}
}reader.read() will throw exception:
com.google.gcloud.storage.StorageException: java.lang.NullPointerException
at com.google.gcloud.storage.StorageException.translateAndThrow(StorageException.java:74)
at com.google.gcloud.storage.BlobReadChannel.read(BlobReadChannel.java:159)
The root cause is, reader is blindly reading chunks from cloud storage, if it reaches beyond the end of the blob, then cloud storage will throw an error: 416 Requested range not satisfiable.
Following code is used to read blob chunk by chunk:
reader.read() will throw exception:
com.google.gcloud.storage.StorageException: java.lang.NullPointerException
The root cause is, reader is blindly reading chunks from cloud storage, if it reaches beyond the end of the blob, then cloud storage will throw an error: 416 Requested range not satisfiable.