public void parseEmbedded(TikaInputStream tis, ContentHandler handler, Metadata metadata,
                              boolean outputHtml) throws IOException, SAXException {
        embeddedDocumentExtractor.parseEmbedded(tis, handler, metadata, outputHtml);
    }
@return Returns a {@link TikaConfig} -- trying to find it first in the ParseContext
that was included during initialization, and then creating a new one from
via {@link TikaConfig#getDefaultConfig()} if it can't find one in the
ParseContext. This caches the default config so that it only has to be created once.
tika-core/src/main/java/org/apache/tika/extractor/EmbeddedDocumentUtil.java