Tika Parser:排除 PDF 附件 [英] Tika Parser: Exclude PDF Attachments

问题描述

有一个 PDF 文档包含不应由 Tika 提取的附件(此处:joboptions).不应将内容发送到 Solr.有没有办法在 Tika 配置中排除某些(或全部)PDF 附件?

There is a PDF documents that has attachments (here: joboptions) that should not be extracted by Tika. The contents should not be sent to Solr. Is there any way to exclude certain (or all) PDF attachments in the Tika config?

推荐答案

实现自定义 org.apache.tika.extractor.DocumentSelector 并将其设置在 ParseContext.使用嵌入文档的元数据调用 DocumentSelector 以决定是否应解析嵌入文档.

Implement a custom org.apache.tika.extractor.DocumentSelector and set it at the ParseContext. The DocumentSelector is called with metadata of the embedded document to decide whether the embedded document should be parsed.

示例文档选择器:

public class CustomDocumentSelector implements DocumentSelector {

  @Override
  public boolean select(Metadata metadata) {
    String resourceName = metadata.get(Metadata.RESOURCE_NAME_KEY);
    return resourceName == null || !resourceName.endsWith(".joboptions");
  }
}

在 ParseContext 注册它:

parseContext.set(DocumentSelector.class, new CustomDocumentSelector());

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