C# Class GoogleCloudSamples.Services.BookDetailLookup

A library for the background task of looking up a book in Google's books API.

Public Methods

Method	Description
BookDetailLookup ( string projectId, Options options = null, ISimpleLogger logger = null ) : Google.Api.Gax
CreateTopicAndSubscription ( ) : void	Creates the topic and subscription, if they don't already exist. You should call this once at the beginning of your app.
EnqueueBook ( long bookId ) : void	Publish a message asking for a book to be processed.
ParseDate ( string dateString ) : DateTime?	Parse a date time. Return null if it can't be parsed. A single number will be interpreted as a year, and the date returned will be YEAR-01-01.
ProcessBook ( IBookStore bookStore, long bookId ) : void	Look up a book in Google's Books API. Update the book in the book store.
PullLoop ( Action callback, CancellationToken cancellationToken ) : void	Pulls books from the queue and invokes your callback for each book.
StartPullLoop ( IBookStore bookStore, CancellationToken cancellationToken ) : Task
UpdateBookFromJson ( string json, Book book ) : void	Updates book with information parsed from a json response from Google's Books API.

Method	Description
PullOnce ( Action callback, CancellationToken cancellationToken ) : void	Makes one call to PubSub.Pull to pull some books from the subscription.

public BookDetailLookup ( string projectId, Options options = null, ISimpleLogger logger = null ) : Google.Api.Gax
projectId	string
options	Options
logger	ISimpleLogger
return	Google.Api.Gax

Creates the topic and subscription, if they don't already exist. You should call this once at the beginning of your app.

public CreateTopicAndSubscription ( ) : void
return	void

Publish a message asking for a book to be processed.

public EnqueueBook ( long bookId ) : void
bookId	long
return	void

Parse a date time. Return null if it can't be parsed. A single number will be interpreted as a year, and the date returned will be YEAR-01-01.

public static ParseDate ( string dateString ) : DateTime?
dateString	string	A string representation of the date.
return	DateTime?

Look up a book in Google's Books API. Update the book in the book store.

public ProcessBook ( IBookStore bookStore, long bookId ) : void
bookStore	IBookStore	Where the book is stored.
bookId	long	The id of the book to look up.
return	void

Pulls books from the queue and invokes your callback for each book.

public PullLoop ( Action callback, CancellationToken cancellationToken ) : void
callback	Action	This callback will be invoked for every book. /// Must be thread safe.
cancellationToken	System.Threading.CancellationToken	Stop looking by cancelling this token. /// Must not be null.
return	void

public StartPullLoop ( IBookStore bookStore, CancellationToken cancellationToken ) : Task
bookStore	IBookStore
cancellationToken	System.Threading.CancellationToken
return	Task

Updates book with information parsed from a json response from Google's Books API.

public static UpdateBookFromJson ( string json, Book book ) : void
json	string	A response from Google's Books API.
book	GoogleCloudSamples.Models.Book	Fields in book will be overwritten.
return	void