-
Notifications
You must be signed in to change notification settings - Fork 2.8k
/
ProcessSpecializedDocument.java
106 lines (93 loc) · 4.84 KB
/
ProcessSpecializedDocument.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/*
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package documentai.v1beta3;
// [START documentai_process_specialized_document]
import com.google.cloud.documentai.v1beta3.Document;
import com.google.cloud.documentai.v1beta3.DocumentProcessorServiceClient;
import com.google.cloud.documentai.v1beta3.ProcessRequest;
import com.google.cloud.documentai.v1beta3.ProcessResponse;
import com.google.cloud.documentai.v1beta3.RawDocument;
import com.google.protobuf.ByteString;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeoutException;
public class ProcessSpecializedDocument {
public static void processSpecializedDocument()
throws IOException, InterruptedException, ExecutionException, TimeoutException {
// TODO(developer): Replace these variables before running the sample.
String projectId = "your-project-id";
String location = "your-project-location"; // Format is "us" or "eu".
String processerId = "your-processor-id";
String filePath = "path/to/input/file.pdf";
processSpecializedDocument(projectId, location, processerId, filePath);
}
public static void processSpecializedDocument(
String projectId, String location, String processorId, String filePath)
throws IOException, InterruptedException, ExecutionException, TimeoutException {
// Initialize client that will be used to send requests. This client only needs to be created
// once, and can be reused for multiple requests. After completing all of your requests, call
// the "close" method on the client to safely clean up any remaining background resources.
try (DocumentProcessorServiceClient client = DocumentProcessorServiceClient.create()) {
// The full resource name of the processor, e.g.:
// projects/project-id/locations/location/processor/processor-id
// You must create new processors in the Cloud Console first
String name =
String.format("projects/%s/locations/%s/processors/%s", projectId, location, processorId);
// Read the file.
byte[] imageFileData = Files.readAllBytes(Paths.get(filePath));
// Convert the image data to a Buffer and base64 encode it.
ByteString content = ByteString.copyFrom(imageFileData);
RawDocument document =
RawDocument.newBuilder().setContent(content).setMimeType("application/pdf").build();
// Configure the process request.
ProcessRequest request =
ProcessRequest.newBuilder().setName(name).setRawDocument(document).build();
// Recognizes text entities in the PDF document
ProcessResponse result = client.processDocument(request);
Document documentResponse = result.getDocument();
System.out.println("Document processing complete.");
// Read fields specificly from the specalized US drivers license processor:
// https://cloud.google.com/document-ai/docs/processors-list#processor_us-driver-license-parser
// retriving data from other specalized processors follow a similar pattern.
// For a complete list of processors see:
// https://cloud.google.com/document-ai/docs/processors-list
//
// OCR and other data is also present in the quality processor's response.
// Please see the OCR and other samples for how to parse other data in the
// response.
for (Document.Entity entity : documentResponse.getEntitiesList()) {
// Fields detected. For a full list of fields for each processor see
// the processor documentation:
// https://cloud.google.com/document-ai/docs/processors-list
String entityType = entity.getType();
// some other value formats in addition to text are availible
// e.g. dates: `entity.getNormalizedValue().getDateValue().getYear()`
// check for normilized value with `entity.hasNormalizedValue()`
String entityTextValue = escapeNewlines(entity.getTextAnchor().getContent());
float entityConfidence = entity.getConfidence();
System.out.printf(
" * %s: %s (%.2f%% confident)\n",
entityType, entityTextValue, entityConfidence * 100.0);
}
}
}
private static String escapeNewlines(String s) {
return s.replace("\n", "\\n").replace("\r", "\\r");
}
}
// [END documentai_process_specialized_document]