public RepositoryConnector newRepositoryConnector()

in maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultRepositoryConnectorProvider.java [63:126]
52 lines of code
10 McCabe index (conditional complexity)

    public RepositoryConnector newRepositoryConnector(RepositorySystemSession session, RemoteRepository repository)
            throws NoRepositoryConnectorException {
        requireNonNull(repository, "remote repository cannot be null");

        if (repository.isBlocked()) {
            if (repository.getMirroredRepositories().isEmpty()) {
                throw new NoRepositoryConnectorException(repository, "Blocked repository: " + repository);
            } else {
                throw new NoRepositoryConnectorException(
                        repository, "Blocked mirror for repositories: " + repository.getMirroredRepositories());
            }
        }

        PrioritizedComponents<RepositoryConnectorFactory> factories = PrioritizedComponents.reuseOrCreate(
                session, RepositoryConnectorFactory.class, connectorFactories, RepositoryConnectorFactory::getPriority);

        List<NoRepositoryConnectorException> errors = new ArrayList<>();
        for (PrioritizedComponent<RepositoryConnectorFactory> factory : factories.getEnabled()) {
            try {
                RepositoryConnector connector = factory.getComponent().newInstance(session, repository);

                if (LOGGER.isDebugEnabled()) {
                    StringBuilder buffer = new StringBuilder(256);
                    buffer.append("Using connector ")
                            .append(connector.getClass().getSimpleName());
                    Utils.appendClassLoader(buffer, connector);
                    buffer.append(" with priority ").append(factory.getPriority());
                    buffer.append(" for ").append(repository.getUrl());
                    LOGGER.debug(buffer.toString());
                }

                connector = pipelineConnector(session, repository, connector);

                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("Final pipeline: {}", connector);
                }

                return connector;
            } catch (NoRepositoryConnectorException e) {
                // continue and try next factory
                LOGGER.debug("Could not obtain connector factory for {}", repository, e);
                errors.add(e);
            }
        }

        StringBuilder buffer = new StringBuilder(256);
        if (factories.isEmpty()) {
            buffer.append("No connector factories available");
        } else {
            buffer.append("Cannot access ").append(repository.getUrl());
            buffer.append(" with type ").append(repository.getContentType());
            buffer.append(" using the available connector factories: ");
            factories.list(buffer);
        }

        // create exception: if one error, make it cause
        NoRepositoryConnectorException ex = new NoRepositoryConnectorException(
                repository, buffer.toString(), errors.size() == 1 ? errors.get(0) : null);
        // if more errors, make them all suppressed
        if (errors.size() > 1) {
            errors.forEach(ex::addSuppressed);
        }
        throw ex;
    }