Question

我能够将元数据与文档一起存储在Watson的Discovery服务中，但现在它已不再有效！发生了什么事？

CreateDocumentRequest.Builder createDocumentBuilder = new CreateDocumentRequest.Builder(environmentId, collectionId);
    JsonObject metadata = new JsonObject();
    metadata.addProperty("filename", fileName);
    createDocumentBuilder.metadata(metadata);
    createDocumentBuilder.inputStream(documentStream, applicationString);
    CreateDocumentResponse createDocumentResponse = discovery.createDocument(createDocumentBuilder.build()).execute();

https://gateway.watsonplatform.net/discovery/api/v1/environments/[environmentId]/collections/[collectionId]/query?version=2016-11-07&query=&count=&offset=&aggregation=&filter=&return=的元数据

{
"matching_results": 1,
"results": [
    {
        "id": "7c705482-9902-4976-9c77-25fbe92bf7fa",
        "score": 1
    }
]

}

为什么停止工作？我对这个开始发生的基础框架感到有些失望。把它集合在一起IBM！

Answer 1

我修正了你的错误IBM。

在com.ibm.watson.developer_cloud.discovery.v1.Discovery.createDocument（CreateDocumentRequest createRequest）中，您可以看到正在构建的Multipart请求，而从不添加所需的元数据部分（smh）。

我扩展了Discovery并添加了

% First Particle
N1 = 100;
particle1 = struct();
particle1.x = cumsum( randn(N1, 1) );
particle1.y = cumsum( randn(N1, 1) );

% Second Particle
N2 = 200;
particle2 = struct();
particle2.x = cumsum( randn(N2, 1) );
particle2.y = cumsum( randn(N2, 1) );

% Plot
figure;
hold on
plot(particle1.x, particle1.y, 'r');
plot(particle2.x, particle2.y, 'b');
ylabel('Y Position');
xlabel('X Position');
title('position versus time in 2D');

到请求...

multipartBuilder.addFormDataPart("metadata", createRequest.getMetadata().toString());

添加文档时未保存元数据

1 个答案: