com.google.cloud.hadoop.gcsio

Class GoogleCloudStorageWriteChannel

java.lang.Object

com.google.cloud.hadoop.util.BaseAbstractGoogleAsyncWriteChannel<S>

com.google.cloud.hadoop.util.AbstractGoogleAsyncWriteChannel<com.google.api.services.storage.Storage.Objects.Insert,com.google.api.services.storage.model.StorageObject>

com.google.cloud.hadoop.gcsio.GoogleCloudStorageWriteChannel

All Implemented Interfaces:

GoogleCloudStorageItemInfo.Provider, Closeable, AutoCloseable, Channel, WritableByteChannel

public class GoogleCloudStorageWriteChannel
extends AbstractGoogleAsyncWriteChannel<com.google.api.services.storage.Storage.Objects.Insert,com.google.api.services.storage.model.StorageObject>
implements GoogleCloudStorageItemInfo.Provider

Implements WritableByteChannel to provide write access to GCS.

Field Summary

Fields inherited from class com.google.cloud.hadoop.util.BaseAbstractGoogleAsyncWriteChannel

channelOptions, logger, threadPool, uploadOperation

Constructor Summary

Constructors

Constructor and Description

GoogleCloudStorageWriteChannel(com.google.api.services.storage.Storage gcs, ClientRequestHelper<com.google.api.services.storage.model.StorageObject> requestHelper, ExecutorService uploadThreadPool, AsyncWriteChannelOptions channelOptions, StorageResourceId resourceId, CreateObjectOptions createOptions, ObjectWriteConditions writeConditions) Constructs an instance of GoogleCloudStorageWriteChannel.

Method Summary

Modifier and Type	Method and Description
com.google.api.services.storage.Storage.Objects.Insert	createRequest(com.google.api.client.http.InputStreamContent inputStream)
protected String	getContentType()
GoogleCloudStorageItemInfo	getItemInfo() Returns non-null only if close() has been called and the underlying object has been successfully committed.
protected String	getResourceString()
void	handleResponse(com.google.api.services.storage.model.StorageObject response)

Methods inherited from class com.google.cloud.hadoop.util.AbstractGoogleAsyncWriteChannel

startUpload

Methods inherited from class com.google.cloud.hadoop.util.BaseAbstractGoogleAsyncWriteChannel

close, createResponseFromException, initialize, isDirectUploadEnabled, isOpen, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GoogleCloudStorageWriteChannel

public GoogleCloudStorageWriteChannel(com.google.api.services.storage.Storage gcs,
                                      ClientRequestHelper<com.google.api.services.storage.model.StorageObject> requestHelper,
                                      ExecutorService uploadThreadPool,
                                      AsyncWriteChannelOptions channelOptions,
                                      StorageResourceId resourceId,
                                      CreateObjectOptions createOptions,
                                      ObjectWriteConditions writeConditions)

Constructs an instance of GoogleCloudStorageWriteChannel.

Parameters:

gcs - storage object instance

uploadThreadPool - thread pool to use for running the upload operation

requestHelper - a ClientRequestHelper to set extra headers

channelOptions - write channel options

resourceId - object to create

createOptions - object creation options

writeConditions - conditions on which write should be allowed to continue

Method Detail

createRequest

public com.google.api.services.storage.Storage.Objects.Insert createRequest(com.google.api.client.http.InputStreamContent inputStream)
                                                                     throws IOException

Specified by:

createRequest in class AbstractGoogleAsyncWriteChannel<com.google.api.services.storage.Storage.Objects.Insert,com.google.api.services.storage.model.StorageObject>

Throws:

IOException

handleResponse

public void handleResponse(com.google.api.services.storage.model.StorageObject response)

Overrides:

handleResponse in class BaseAbstractGoogleAsyncWriteChannel<com.google.api.services.storage.model.StorageObject>

getContentType

protected String getContentType()

Specified by:

getContentType in class AbstractGoogleAsyncWriteChannel<com.google.api.services.storage.Storage.Objects.Insert,com.google.api.services.storage.model.StorageObject>

getResourceString

protected String getResourceString()

Specified by:

getResourceString in class BaseAbstractGoogleAsyncWriteChannel<com.google.api.services.storage.model.StorageObject>

getItemInfo

public GoogleCloudStorageItemInfo getItemInfo()

Returns non-null only if close() has been called and the underlying object has been successfully committed.

Specified by:

getItemInfo in interface GoogleCloudStorageItemInfo.Provider