Examples with MetaIndexer io.georocket.index.xml.MetaIndexer used on opensource projects

Example 1 with MetaIndexer

use of io.georocket.index.xml.MetaIndexer in project georocket by georocket.

the class IndexerVerticle method openChunkToDocument.

/**
 * Open a chunk and convert it to an Elasticsearch document. Retry operation
 * several times before failing.
 * @param path the path to the chunk to open
 * @param chunkMeta metadata about the chunk
 * @param indexMeta metadata used to index the chunk
 * @return an observable that emits the document
 */
private Observable<Map<String, Object>> openChunkToDocument(String path, ChunkMeta chunkMeta, IndexMeta indexMeta) {
    return Observable.defer(() -> store.rxGetOne(path).flatMapObservable(chunk -> {
        List<? extends IndexerFactory> factories;
        Operator<? extends StreamEvent, Buffer> parserOperator;
        // select indexers and parser depending on the mime type
        String mimeType = chunkMeta.getMimeType();
        if (belongsTo(mimeType, "application", "xml") || belongsTo(mimeType, "text", "xml")) {
            factories = xmlIndexerFactories;
            parserOperator = new XMLParserOperator();
        } else if (belongsTo(mimeType, "application", "json")) {
            factories = jsonIndexerFactories;
            parserOperator = new JsonParserOperator();
        } else {
            return Observable.error(new NoStackTraceThrowable(String.format("Unexpected mime type '%s' while trying to index " + "chunk '%s'", mimeType, path)));
        }
        // call meta indexers
        Map<String, Object> metaResults = new HashMap<>();
        for (MetaIndexerFactory metaIndexerFactory : metaIndexerFactories) {
            MetaIndexer metaIndexer = metaIndexerFactory.createIndexer();
            metaIndexer.onIndexChunk(path, chunkMeta, indexMeta);
            metaResults.putAll(metaIndexer.getResult());
        }
        // convert chunk to document and close it
        return chunkToDocument(chunk, indexMeta.getFallbackCRSString(), parserOperator, factories).doAfterTerminate(chunk::close).doOnNext(doc -> doc.putAll(metaResults));
    })).retryWhen(makeRetry());
}