Examples with ResponseHandler org.qi4j.library.rest.client.spi.ResponseHandler used on opensource projects

Example 1 with ResponseHandler

use of org.qi4j.library.rest.client.spi.ResponseHandler in project qi4j-sdk by Qi4j.

the class ContextResourceClientFactoryTest method testQueryListAndCommand.

@Test
public void testQueryListAndCommand() {
    // START SNIPPET: query-list-and-command
    crc.onResource(new ResultHandler<Resource>() {

        @Override
        public HandlerCommand handleResult(Resource result, ContextResourceClient client) {
            return query("commandwithvalue");
        }
    }).onQuery("commandwithvalue", new ResultHandler<Links>() {

        @Override
        public HandlerCommand handleResult(Links result, ContextResourceClient client) {
            Link link = LinksUtil.withId("right", result);
            return command(link);
        }
    }).onCommand("commandwithvalue", new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            System.out.println("Done");
            return null;
        }
    });
    crc.start();
// END SNIPPET: query-list-and-command
}

Example 2 with ResponseHandler

use of org.qi4j.library.rest.client.spi.ResponseHandler in project qi4j-sdk by Qi4j.

the class ContextResourceClientFactoryTest method startWebServer.

@Before
public void startWebServer() throws Exception {
    server = new Server(Protocol.HTTP, 8888);
    ContextRestlet restlet = module.newObject(ContextRestlet.class, new org.restlet.Context());
    ChallengeAuthenticator guard = new ChallengeAuthenticator(null, ChallengeScheme.HTTP_BASIC, "testRealm");
    MapVerifier mapVerifier = new MapVerifier();
    mapVerifier.getLocalSecrets().put("rickard", "secret".toCharArray());
    guard.setVerifier(mapVerifier);
    guard.setNext(restlet);
    server.setNext(guard);
    server.start();
    // START SNIPPET: client-create1
    Client client = new Client(Protocol.HTTP);
    ContextResourceClientFactory contextResourceClientFactory = module.newObject(ContextResourceClientFactory.class, client);
    contextResourceClientFactory.setAcceptedMediaTypes(MediaType.APPLICATION_JSON);
    // END SNIPPET: client-create1
    // START SNIPPET: client-create2
    contextResourceClientFactory.setErrorHandler(new ErrorHandler().onError(ErrorHandler.AUTHENTICATION_REQUIRED, new ResponseHandler() {

        boolean tried = false;

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            if (tried)
                throw new ResourceException(response.getStatus());
            tried = true;
            client.getContextResourceClientFactory().getInfo().setUser(new User("rickard", "secret"));
            // Try again
            return refresh();
        }
    }).onError(ErrorHandler.RECOVERABLE_ERROR, new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            // Try to restart
            return refresh();
        }
    }));
    // END SNIPPET: client-create2
    // START SNIPPET: client-create3
    Reference ref = new Reference("http://localhost:8888/");
    crc = contextResourceClientFactory.newClient(ref);
// END SNIPPET: client-create3
}

Example 3 with ResponseHandler

use of org.qi4j.library.rest.client.spi.ResponseHandler in project qi4j-sdk by Qi4j.

the class RssReaderTest method testReadRssFeed.

@Test
public void testReadRssFeed() {
    Client client = new Client(Protocol.HTTPS);
    Reference ref = new Reference("https://github.com/Qi4j/qi4j-sdk/commits/develop.atom");
    ContextResourceClientFactory contextResourceClientFactory = module.newObject(ContextResourceClientFactory.class, client);
    contextResourceClientFactory.registerResponseReader(new ResponseReader() {

        @Override
        public Object readResponse(Response response, Class<?> resultType) throws ResourceException {
            if (resultType.equals(Document.class)) {
                try {
                    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
                    documentBuilderFactory.setNamespaceAware(false);
                    return documentBuilderFactory.newDocumentBuilder().parse(response.getEntity().getStream());
                } catch (Exception e) {
                    throw new ResourceException(e);
                }
            }
            return null;
        }
    });
    contextResourceClientFactory.setErrorHandler(new ErrorHandler().onError(ErrorHandler.RECOVERABLE_ERROR, new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            System.out.println(">> REFRESH on recoverable error: " + response.getStatus());
            return refresh();
        }
    }));
    crc = contextResourceClientFactory.newClient(ref);
    crc.onResource(new ResultHandler<Document>() {

        Iterator<Node> itemNodes;

        @Override
        public HandlerCommand handleResult(Document result, ContextResourceClient client) {
            try {
                final XPath xPath = XPathFactory.newInstance().newXPath();
                System.out.println("== " + xPath.evaluate("feed/title", result) + " ==");
                final NodeList nodes = (NodeList) xPath.evaluate("feed/entry", result, XPathConstants.NODESET);
                List<Node> items = new ArrayList<Node>();
                for (int i = 0; i < nodes.getLength(); i++) {
                    items.add(nodes.item(i));
                }
                itemNodes = items.iterator();
                return processEntry(xPath);
            } catch (XPathExpressionException e) {
                throw new ResourceException(e);
            }
        }

        private HandlerCommand processEntry(final XPath xPath) throws XPathExpressionException {
            if (!itemNodes.hasNext()) {
                return null;
            }
            Node item = itemNodes.next();
            String title = xPath.evaluate("title", item);
            String detailUrl = xPath.evaluate("link/@href", item);
            System.out.println("-- " + title + " --");
            System.out.println("-- " + detailUrl + " --");
            return processEntry(xPath);
        }
    });
    crc.start();
}

Example 4 with ResponseHandler

use of org.qi4j.library.rest.client.spi.ResponseHandler in project qi4j-sdk by Qi4j.

the class HandlerCommand method onSuccess.

public <T> HandlerCommand onSuccess(final ResultHandler<T> resultHandler) {
    final Class<T> resultType = (Class<T>) Classes.RAW_CLASS.map(((ParameterizedType) resultHandler.getClass().getGenericInterfaces()[0]).getActualTypeArguments()[0]);
    this.responseHandler = new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            T result = client.getContextResourceClientFactory().readResponse(response, resultType);
            return resultHandler.handleResult(result, client);
        }
    };
    return this;
}

Example 5 with ResponseHandler

use of org.qi4j.library.rest.client.spi.ResponseHandler in project qi4j-sdk by Qi4j.

the class ContextResourceClient method onQuery.

public <T> ContextResourceClient onQuery(String relation, final ResultHandler<T> handler) {
    final Class<T> resultType = (Class<T>) Classes.RAW_CLASS.map(((ParameterizedType) handler.getClass().getGenericInterfaces()[0]).getActualTypeArguments()[0]);
    queryHandlers.put(relation, new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            T result = contextResourceFactory.readResponse(response, resultType);
            return handler.handleResult(result, client);
        }
    });
    return this;
}