Double retrieveSchemaVersion(String collectionName) {
try {
SolrJsonResponse response =
SolrSchemaRequest.version().process(factory.getSolrClient(collectionName));
JsonNode node = response.getNode("version");
return node != null ? node.asDouble() : Double.NaN;
} catch (SolrServerException e) {
EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
} catch (IOException e) {
EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
} catch (SolrException e) {
EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
}
return Double.NaN;
}
SchemaDefinition loadExistingSchema(String collectionName) {
try {
SolrJsonResponse response =
SolrSchemaRequest.schema().process(factory.getSolrClient(collectionName));
if (response != null && response.getNode("schema") != null) {
ObjectMapper mapper = new ObjectMapper();
mapper.enable(MapperFeature.AUTO_DETECT_CREATORS);
mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
return mapper.readValue(response.getNode("schema").toString(), SchemaDefinition.class);
}
return null;
} catch (SolrServerException e) {
throw EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
} catch (IOException e) {
throw new InvalidDataAccessResourceUsageException("Failed to load schema definition.", e);
} catch (SolrException e) {
throw EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
}
}
private void writeFieldDefinitions(
Collection<FieldDefinition> definitions, String collectionName) {
if (!CollectionUtils.isEmpty(definitions)) {
try {
SolrSchemaRequest.create()
.fields(definitions)
.build()
.process(factory.getSolrClient(collectionName));
} catch (SolrServerException e) {
throw EXCEPTION_TRANSLATOR.translateExceptionIfPossible(new RuntimeException(e));
} catch (IOException e) {
throw new InvalidDataAccessResourceUsageException(
"Failed to write schema field definitions.", e);
}
}
}