/**
* Returns the fully configured {@link OAuthService}
*
* @return fully configured {@link OAuthService}
*/
public OAuthService build() {
Preconditions.checkNotNull(api, "You must specify a valid api through the provider() method");
Preconditions.checkEmptyString(apiKey, "You must provide an api key");
Preconditions.checkEmptyString(apiSecret, "You must provide an api secret");
return api.createService(
new OAuthConfig(apiKey, apiSecret, callback, signatureType, scope, grantType, debugStream));
}
private Api createApi(Class<? extends Api> apiClass) {
Preconditions.checkNotNull(apiClass, "Api class cannot be null");
Api api;
try {
api = apiClass.newInstance();
} catch (Exception e) {
throw new OAuthException("Error while creating the Api object", e);
}
return api;
}
/**
* Adds an OAuth callback url
*
* @param callback callback url. Must be a valid url or 'oob' for out of band OAuth
* @return the {@link ServiceBuilder} instance for method chaining
*/
public ServiceBuilder callback(String callback) {
Preconditions.checkNotNull(callback, "Callback can't be null");
this.callback = callback;
return this;
}
/**
* Configures the {@link Api}
*
* <p>Overloaded version. Let's you use an instance instead of a class.
*
* @param api instance of {@link Api}s
* @return the {@link ServiceBuilder} instance for method chaining
*/
public ServiceBuilder provider(Api api) {
Preconditions.checkNotNull(api, "Api cannot be null");
this.api = api;
return this;
}
public ServiceBuilder debugStream(OutputStream stream) {
Preconditions.checkNotNull(stream, "debug stream can't be null");
this.debugStream = stream;
return this;
}
/**
* Configures the signature type, choose between header, querystring, etc. Defaults to Header
*
* @param scope The OAuth scope
* @return the {@link ServiceBuilder} instance for method chaining
*/
public ServiceBuilder signatureType(SignatureType type) {
Preconditions.checkNotNull(type, "Signature type can't be null");
this.signatureType = type;
return this;
}