Example usage for org.apache.solr.request SolrQueryRequest updateSchemaToLatest

Introduction

In this page you can find the example usage for org.apache.solr.request SolrQueryRequest updateSchemaToLatest.

Prototype

public void updateSchemaToLatest();

Source Link

Document

Replaces the current schema snapshot with the latest from the core.

Usage

From source file:com.sindicetech.siren.solr.handler.JsonLoader.java

License:Open Source License

@Override
public void load(final SolrQueryRequest req, final SolrQueryResponse rsp, final ContentStream stream,
        final UpdateRequestProcessor processor) throws Exception {
    Reader reader = null;/*from w w  w  .  j  av  a2s .  c o  m*/
    try {
        reader = stream.getReader();
        // keep a copy of the body for the source entry
        // TODO: instead of reading the stream to make a copy, try to create a copy of the json
        // while parsing it in the JsonReader
        String body = IOUtils.toString(reader);

        FieldMappersHandler mappersHandler = new FieldMappersHandler(fieldMappers, req.getCore());
        DocumentBuilder docBuilder = new DocumentBuilder();

        // Add the source field entry
        FieldEntry source = new FieldEntry(SOURCE_FIELDNAME, body);
        docBuilder.add(mappersHandler.map(source));

        // Add the id field initialised with a UUID. It will be overwritten if an id field exist in the JSON document.
        FieldEntry id = new FieldEntry(IdFieldMapper.INPUT_FIELD,
                UUID.randomUUID().toString().toLowerCase(Locale.ROOT));
        docBuilder.add(mappersHandler.map(id));

        JsonParser parser = mapper.getJsonFactory().createJsonParser(new StringReader(body));
        JsonReader jreader = new JsonReader(parser);

        FieldEntry entry;
        while ((entry = jreader.next()) != null) {
            docBuilder.add(mappersHandler.map(entry));
        }

        // the index schema might have changed
        req.updateSchemaToLatest();

        // check that we have seen all the required field mappers
        Set<String> missingRequiredMappers = mappersHandler.getMissingRequiredMappers();
        if (!missingRequiredMappers.isEmpty()) {
            throw new SolrException(BAD_REQUEST,
                    "Document is missing the following required fields: " + missingRequiredMappers);
        }

        // Create and process the Add command
        AddUpdateCommand cmd = new AddUpdateCommand(req);
        cmd.solrDoc = docBuilder.getSolrInputDocument();
        processor.processAdd(cmd);
    } finally {
        IOUtils.closeQuietly(reader);
    }
}

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