DocumentAnalysisAsyncClient Class

Package:

com.azure.ai.formrecognizer.documentanalysis

Maven Artifact:

com.azure:azure-ai-formrecognizer:4.1.12

• java.lang.Object
• • com.azure.ai.formrecognizer.documentanalysis.DocumentAnalysisAsyncClient

public final class DocumentAnalysisAsyncClient

This class provides an asynchronous client to connect to the Form Recognizer Azure Cognitive Service.

This client provides asynchronous methods to perform:

1. Custom Document Analysis: Classification, extraction and analysis of data from forms and documents specific to distinct business data and use cases. Use the custom trained model by passing its modelId into the beginAnalyzeDocument(String modelId, BinaryData document) method.
2. General Document Analysis: Extract text, tables, structure, and key-value pairs. Use general document model provided by the Form Recognizer service by passing modelId="rebuilt-document" into the beginAnalyzeDocument(String modelId, BinaryData document) method.
3. Prebuilt Model Analysis: Analyze receipts, business cards, invoices, ID's, W2's and other documents with supported prebuilt models. Use the prebuilt receipt model provided by passing modelId="prebuilt-receipt" into the beginAnalyzeDocument(String modelId, BinaryData document) method.
4. Layout Analysis: Extract text, selection marks, and tables structures, along with their bounding box coordinates, from forms and documents. Use the layout analysis model provided the service by passing modelId="prebuilt-layout" into the beginAnalyzeDocument(String modelId, BinaryData document) method.
5. Polling and Callbacks: It includes mechanisms for polling the service to check the status of an analysis operation or registering callbacks to receive notifications when the analysis is complete.

This client also provides different methods based on inputs from a URL and inputs from a stream.

Note: This client only supports V2022_08_31 and newer. To use an older service version, FormRecognizerClient and FormTrainingClient.

Service clients are the point of interaction for developers to use Azure Form Recognizer. DocumentAnalysisClient is the synchronous service client and DocumentAnalysisAsyncClient is the asynchronous service client. The examples shown in this document use a credential object named DefaultAzureCredential for authentication, which is appropriate for most scenarios, including local development and production environments. Additionally, we recommend using managed identity for authentication in production environments. You can find more information on different ways of authenticating and their corresponding credential types in the Azure Identity documentation".

Sample: Construct a DocumentAnalysisAsyncClient with DefaultAzureCredential

The following code sample demonstrates the creation of a DocumentAnalysisAsyncClient, using the `DefaultAzureCredentialBuilder` to configure it.

DocumentAnalysisAsyncClient documentAnalysisAsyncClient = new DocumentAnalysisClientBuilder()
     .endpoint("{endpoint}")
     .credential(new DefaultAzureCredentialBuilder().build())
     .buildAsyncClient();

Further, see the code sample below to use AzureKeyCredential for client creation.

DocumentAnalysisAsyncClient documentAnalysisAsyncClient = new DocumentAnalysisClientBuilder()
     .credential(new AzureKeyCredential("{key}"))
     .endpoint("{endpoint}")
     .buildAsyncClient();

Method Summary

Modifier and Type	Method and Description
PollerFlux<OperationResult,AnalyzeResult>	beginAnalyzeDocument(String modelId, BinaryData document) Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.
PollerFlux<OperationResult,AnalyzeResult>	beginAnalyzeDocument(String modelId, BinaryData document, AnalyzeDocumentOptions analyzeDocumentOptions) Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.
PollerFlux<OperationResult,AnalyzeResult>	beginAnalyzeDocumentFromUrl(String modelId, String documentUrl) Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.
PollerFlux<OperationResult,AnalyzeResult>	beginAnalyzeDocumentFromUrl(String modelId, String documentUrl, AnalyzeDocumentOptions analyzeDocumentOptions) Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.
PollerFlux<OperationResult,AnalyzeResult>	beginClassifyDocument(String classifierId, BinaryData document) Classify a given document using a document classifier.
PollerFlux<OperationResult,AnalyzeResult>	beginClassifyDocumentFromUrl(String classifierId, String documentUrl) Classify a given document using a document classifier.

Methods inherited from java.lang.Object

clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Method Details

beginAnalyzeDocument

public PollerFlux beginAnalyzeDocument(String modelId, BinaryData document)

Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

Code sample

Analyze a document.

File document = new File("{local/file_path/fileName.jpg}");
 String modelId = "{model_id}";
 // Utility method to convert input stream to Binary Data
 BinaryData buffer = BinaryData.fromStream(new ByteArrayInputStream(Files.readAllBytes(document.toPath())));

 documentAnalysisAsyncClient.beginAnalyzeDocument(modelId, buffer)
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult ->
         analyzeResult.getDocuments()
             .forEach(analyzedDocument ->
                 analyzedDocument.getFields()
                     .forEach((key, documentField) -> {
                         System.out.printf("Field text: %s%n", key);
                         System.out.printf("Field value data content: %s%n", documentField.getContent());
                         System.out.printf("Confidence score: %.2f%n", documentField.getConfidence());
                     })));

Parameters:

modelId - The unique model ID to be used. Use this to specify the custom model ID or prebuilt model ID. Prebuilt model IDs supported can be found here

document - The data of the document to analyze information from.

Returns:

A PollerFlux<T,U> that polls the progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.

beginAnalyzeDocument

public PollerFlux beginAnalyzeDocument(String modelId, BinaryData document, AnalyzeDocumentOptions analyzeDocumentOptions)

Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

Code sample

Analyze a document with configurable options. .

File document = new File("{local/file_path/fileName.jpg}");
 String modelId = "{model_id}";
 final AnalyzeDocumentOptions analyzeDocumentOptions =
     new AnalyzeDocumentOptions().setPages(Arrays.asList("1", "3")).setDocumentAnalysisFeatures(
         Collections.singletonList(
             DocumentAnalysisFeature.FORMULAS));

 // Utility method to convert input stream to Binary Data
 BinaryData buffer = BinaryData.fromStream(new ByteArrayInputStream(Files.readAllBytes(document.toPath())));

 documentAnalysisAsyncClient.beginAnalyzeDocument(modelId, buffer, analyzeDocumentOptions)
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult -> {
         System.out.println(analyzeResult.getModelId());
         analyzeResult.getDocuments()
             .forEach(analyzedDocument ->
                 analyzedDocument.getFields()
                     .forEach((key, documentField) -> {
                         System.out.printf("Field text: %s%n", key);
                         System.out.printf("Field value data content: %s%n", documentField.getContent());
                         System.out.printf("Confidence score: %.2f%n", documentField.getConfidence());
                     }));
     });

Parameters:

modelId - The unique model ID to be used. Use this to specify the custom model ID or prebuilt model ID. Prebuilt model IDs supported can be found here

document - The data of the document to analyze information from.

analyzeDocumentOptions - The additional configurable AnalyzeDocumentOptions that may be passed when analyzing documents.

Returns:

A PollerFlux<T,U> that polls the progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.

beginAnalyzeDocumentFromUrl

public PollerFlux beginAnalyzeDocumentFromUrl(String modelId, String documentUrl)

Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Code sample

Analyze a document using the URL of the document.

String documentUrl = "{document_url}";
 String modelId = "{model_id}";
 documentAnalysisAsyncClient.beginAnalyzeDocumentFromUrl(modelId, documentUrl)
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult ->
         analyzeResult.getDocuments()
             .forEach(document ->
                 document.getFields()
                     .forEach((key, documentField) -> {
                         System.out.printf("Field text: %s%n", key);
                         System.out.printf("Field value data content: %s%n", documentField.getContent());
                         System.out.printf("Confidence score: %.2f%n", documentField.getConfidence());
                     })));

Parameters:

modelId - The unique model ID to be used. Use this to specify the custom model ID or prebuilt model ID. Prebuilt model IDs supported can be found here

documentUrl - The URL of the document to analyze.

Returns:

A PollerFlux<T,U> that polls the progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.

beginAnalyzeDocumentFromUrl

public PollerFlux beginAnalyzeDocumentFromUrl(String modelId, String documentUrl, AnalyzeDocumentOptions analyzeDocumentOptions)

Analyzes data from documents with optical character recognition (OCR) and semantic values from a given document using any of the prebuilt models or a custom-built analysis model.

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Code sample

Analyze a document using the URL of the document with configurable options.

String documentUrl = "{document_url}";
 // analyze a receipt using prebuilt model
 String modelId = "prebuilt-receipt";

 documentAnalysisAsyncClient.beginAnalyzeDocumentFromUrl(modelId, documentUrl,
         new AnalyzeDocumentOptions().setPages(Arrays.asList("1", "3")))
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult -> {
         System.out.println(analyzeResult.getModelId());
         analyzeResult.getDocuments()
             .forEach(document ->
                 document.getFields()
                     .forEach((key, documentField) -> {
                         System.out.printf("Field text: %s%n", key);
                         System.out.printf("Field value data content: %s%n", documentField.getContent());
                         System.out.printf("Confidence score: %.2f%n", documentField.getConfidence());
                     }));
     });

Parameters:

modelId - The unique model ID to be used. Use this to specify the custom model ID or prebuilt model ID. Prebuilt model IDs supported can be found here

documentUrl - The source URL to the input form.

analyzeDocumentOptions - The additional configurable AnalyzeDocumentOptions that may be passed when analyzing documents.

Returns:

A PollerFlux<T,U> that polls progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.

beginClassifyDocument

public PollerFlux beginClassifyDocument(String classifierId, BinaryData document)

Classify a given document using a document classifier. For more information on how to build a custom classifier model, see

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

Code sample

Analyze a document with configurable options.

File document = new File("{local/file_path/fileName.jpg}");
 String classifierId = "{model_id}";

 // Utility method to convert input stream to Binary Data
 BinaryData buffer = BinaryData.fromStream(new ByteArrayInputStream(Files.readAllBytes(document.toPath())));

 documentAnalysisAsyncClient.beginClassifyDocument(classifierId, buffer)
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult -> {
         System.out.println(analyzeResult.getModelId());
         analyzeResult.getDocuments()
             .forEach(analyzedDocument -> System.out.printf("Doc Type: %s%n", analyzedDocument.getDocType()));
     });

Parameters:

classifierId - The unique classifier ID to be used. Use this to specify the custom classifier ID.

document - The data of the document to analyze information from. For service supported file types, see:

Returns:

A PollerFlux<T,U> that polls the progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.

beginClassifyDocumentFromUrl

public PollerFlux beginClassifyDocumentFromUrl(String classifierId, String documentUrl)

Classify a given document using a document classifier. For more information on how to build a custom classifier model, see

The service does not support cancellation of the long running operation and returns with an error message indicating absence of cancellation support.

Code sample

Analyze a document using the URL of the document.

String documentUrl = "{document_url}";
 String classifierId = "custom-trained-classifier-id";

 documentAnalysisAsyncClient.beginClassifyDocumentFromUrl(classifierId, documentUrl)
     // if polling operation completed, retrieve the final result.
     .flatMap(AsyncPollResponse::getFinalResult)
     .subscribe(analyzeResult -> {
         System.out.println(analyzeResult.getModelId());
         analyzeResult.getDocuments()
             .forEach(analyzedDocument -> System.out.printf("Doc Type: %s%n", analyzedDocument.getDocType()));
     });

Parameters:

classifierId - The unique classifier ID to be used. Use this to specify the custom classifier ID.

documentUrl - The URL of the document to analyze.

Returns:

A PollerFlux<T,U> that polls the progress of the analyze document operation until it has completed, has failed, or has been cancelled. The completed operation returns an AnalyzeResult.