Java Code Examples for io.micronaut.core.async.publisher.Publishers#map()

The following examples show how to use io.micronaut.core.async.publisher.Publishers#map() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DefaultDeleteOneReactiveInterceptor.java    From micronaut-data with Apache License 2.0 6 votes vote down vote up 
@Override
public Object intercept(RepositoryMethodKey methodKey, MethodInvocationContext<Object, Object> context) {
    Object[] parameterValues = context.getParameterValues();
    if (parameterValues.length == 1) {
        Class<Object> rootEntity = (Class<Object>) getRequiredRootEntity(context);
        Object o = parameterValues[0];
        if (o != null) {
            BatchOperation<Object> batchOperation = getBatchOperation(context, rootEntity, Collections.singletonList(o));
            Publisher<Number> publisher = Publishers.map(reactiveOperations.deleteAll(batchOperation),
                    n -> convertNumberArgumentIfNecessary(n, context.getReturnType().asArgument())
            );
            return Publishers.convertPublisher(
                    publisher,
                    context.getReturnType().getType()
            );
        } else {
            throw new IllegalArgumentException("Entity to delete cannot be null");
        }
    } else {
        throw new IllegalStateException("Expected exactly one argument");
    }
}
Example 2
Source File: DefaultUpdateReactiveInterceptor.java    From micronaut-data with Apache License 2.0 5 votes vote down vote up 
@Override
public Object intercept(RepositoryMethodKey methodKey, MethodInvocationContext<Object, Object> context) {
    PreparedQuery<?, Number> preparedQuery = (PreparedQuery<?, Number>) prepareQuery(methodKey, context);
    ReturnType<Object> returnType = context.getReturnType();
    Publisher<Number> publisher = Publishers.map(reactiveOperations.executeUpdate(preparedQuery),
            n -> convertNumberArgumentIfNecessary(n, returnType.asArgument())
    );
    return Publishers.convertPublisher(publisher, returnType.getType());
}
Example 3
Source File: DefaultFindOneReactiveInterceptor.java    From micronaut-data with Apache License 2.0 5 votes vote down vote up 
@Override
public Object intercept(RepositoryMethodKey methodKey, MethodInvocationContext<Object, Object> context) {
    PreparedQuery<Object, Object> preparedQuery = (PreparedQuery<Object, Object>) prepareQuery(methodKey, context);
    Publisher<Object> publisher = reactiveOperations.findOptional(preparedQuery);
    Argument<Object> returnType = context.getReturnType().asArgument();
    Argument<?> type = returnType.getFirstTypeVariable().orElse(Argument.OBJECT_ARGUMENT);
    Publisher<Object> mappedPublisher = Publishers.map(publisher, o -> {
        if (!type.getType().isInstance(o)) {
            return ConversionService.SHARED.convert(o, type)
                    .orElseThrow(() -> new IllegalStateException("Unexpected return type: " + o));
        }
        return o;
    });
    return Publishers.convertPublisher(mappedPublisher, returnType.getType());
}
Example 4
Source File: GraphQLController.java    From micronaut-graphql with Apache License 2.0 5 votes vote down vote up 
/**
 * Executes the GraphQL request and returns the serialized {@link GraphQLResponseBody}.
 *
 * @param query         the GraphQL query
 * @param operationName the GraphQL operation name
 * @param variables     the GraphQL variables
 * @param httpRequest   the HTTP request
 * @return the serialized GraphQL response
 */
private Publisher<String> executeRequest(
        String query,
        String operationName,
        Map<String, Object> variables,
        HttpRequest httpRequest) {
    GraphQLInvocationData invocationData = new GraphQLInvocationData(query, operationName, variables);
    Publisher<ExecutionResult> executionResult = graphQLInvocation.invoke(invocationData, httpRequest);
    Publisher<GraphQLResponseBody> responseBody = graphQLExecutionResultHandler.handleExecutionResult(executionResult);
    return Publishers.map(responseBody, graphQLJsonSerializer::serialize);
}
Example 5
Source File: DefaultGraphQLExecutionResultHandler.java    From micronaut-graphql with Apache License 2.0 4 votes vote down vote up 
/**
 * {@inheritDoc}
 */
@Override
public Publisher<GraphQLResponseBody> handleExecutionResult(Publisher<ExecutionResult> executionResultPublisher) {
    return Publishers.map(executionResultPublisher, executionResult -> new GraphQLResponseBody(executionResult.toSpecification()));
}