Examples with GraphQLContainer com.yahoo.elide.graphql.containers.GraphQLContainer used on opensource projects

Example 1 with GraphQLContainer

use of com.yahoo.elide.graphql.containers.GraphQLContainer in project elide by yahoo.

the class PersistentResourceFetcher method get.

/**
 * Override graphql-java's {@link DataFetcher} get method to execute
 * the mutation and return some sensible output values.
 * @param environment Graphql-java's execution environment
 * @return a collection of {@link PersistentResource} objects
 */
@Override
public Object get(DataFetchingEnvironment environment) {
    /* fetch arguments in mutation/query */
    Map<String, Object> args = environment.getArguments();
    /* fetch current operation */
    RelationshipOp operation = (RelationshipOp) args.getOrDefault(ARGUMENT_OPERATION, FETCH);
    /* build environment object, extracts required fields */
    Environment context = new Environment(environment, nonEntityDictionary);
    /* safe enable debugging */
    if (log.isDebugEnabled()) {
        logContext(log, operation, context);
    }
    if (operation != FETCH) {
        /* Don't allow write operations in a non-mutation request. */
        if (environment.getOperationDefinition().getOperation() != OperationDefinition.Operation.MUTATION) {
            throw new BadRequestException("Data model writes are only allowed in mutations");
        }
        /* sanity check for pagination/filtering/sorting arguments w any operation other than FETCH */
        filterSortPaginateSanityCheck(context);
    }
    GraphQLContainer container;
    /* delegate request */
    switch(operation) {
        case FETCH:
            {
                return fetchObjects(context);
            }
        case UPSERT:
            {
                container = upsertObjects(context);
                break;
            }
        case UPDATE:
            {
                container = updateObjects(context);
                break;
            }
        case DELETE:
            {
                container = deleteObjects(context);
                break;
            }
        case REMOVE:
            {
                container = removeObjects(context);
                break;
            }
        case REPLACE:
            {
                container = replaceObjects(context);
                break;
            }
        default:
            throw new UnsupportedOperationException("Unknown operation: " + operation);
    }
    if (operation != FETCH) {
        context.requestScope.runQueuedPreSecurityTriggers();
        context.requestScope.runQueuedPreFlushTriggers();
    }
    return container;
}