/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.jaxrs.client;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.net.URI;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import javax.ws.rs.HttpMethod;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.client.AsyncInvoker;
import javax.ws.rs.client.CompletionStageRxInvoker;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.InvocationCallback;
import javax.ws.rs.client.RxInvoker;
import javax.ws.rs.client.RxInvokerProvider;
import javax.ws.rs.client.SyncInvoker;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.GenericType;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.PathSegment;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.UriBuilder;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.bus.spring.SpringBusFactory;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.classloader.ClassLoaderUtils.ClassLoaderHolder;
import org.apache.cxf.common.util.ClassHelper;
import org.apache.cxf.common.util.PropertyUtils;
import org.apache.cxf.feature.Feature;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxrs.client.spec.ClientImpl.WebTargetImpl;
import org.apache.cxf.jaxrs.client.spec.InvocationBuilderImpl;
import org.apache.cxf.jaxrs.impl.ResponseImpl;
import org.apache.cxf.jaxrs.impl.UriBuilderImpl;
import org.apache.cxf.jaxrs.model.ParameterType;
import org.apache.cxf.jaxrs.model.URITemplate;
import org.apache.cxf.jaxrs.utils.HttpUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.jaxrs.utils.ParameterizedCollectionType;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
/**
* Http-centric web client
*
*/
public class WebClient extends AbstractClient implements AsyncClient {
private static final String REQUEST_CLASS = "request.class";
private static final String REQUEST_TYPE = "request.type";
private static final String REQUEST_ANNS = "request.annotations";
private static final String RESPONSE_CLASS = "response.class";
private static final String RESPONSE_TYPE = "response.type";
private static final String WEB_CLIENT_OPERATION_REPORTING = "enable.webclient.operation.reporting";
private BodyWriter bodyWriter = new BodyWriter();
protected WebClient(String baseAddress) {
this(convertStringToURI(baseAddress));
}
protected WebClient(URI baseURI) {
this(new LocalClientState(baseURI));
}
protected WebClient(ClientState state) {
super(state);
cfg.getInInterceptors().add(new ClientAsyncResponseInterceptor());
}
/**
* Creates WebClient
* @param baseAddress baseAddress
*/
public static WebClient create(String baseAddress) {
JAXRSClientFactoryBean bean = new JAXRSClientFactoryBean();
bean.setAddress(baseAddress);
return bean.createWebClient();
}
/**
* Creates WebClient
* @param baseURI baseURI
*/
public static WebClient create(URI baseURI) {
return create(baseURI.toString());
}
/**
* Creates WebClient
* @param baseURI baseURI
*/
public static WebClient create(String baseURI, boolean threadSafe) {
return create(baseURI, Collections.emptyList(), threadSafe);
}
/**
* Creates WebClient
* @param baseAddress baseURI
* @param providers list of providers
*/
public static WebClient create(String baseAddress, List<?> providers) {
return create(baseAddress, providers, null);
}
/**
* Creates WebClient
* @param baseAddress baseURI
* @param providers list of providers
* @param threadSafe if true ThreadLocalClientState is used
*/
public static WebClient create(String baseAddress, List<?> providers, boolean threadSafe) {
JAXRSClientFactoryBean bean = getBean(baseAddress, null);
bean.setProviders(providers);
if (threadSafe) {
bean.setInitialState(new ThreadLocalClientState(baseAddress));
}
return bean.createWebClient();
}
/**
* Creates a thread safe WebClient
* @param baseAddress baseURI
* @param providers list of providers
* @param timeToKeepState time to keep this thread safe state.
*/
public static WebClient create(String baseAddress, List<?> providers, long timeToKeepState) {
JAXRSClientFactoryBean bean = getBean(baseAddress, null);
bean.setProviders(providers);
bean.setInitialState(new ThreadLocalClientState(baseAddress, timeToKeepState));
return bean.createWebClient();
}
/**
* Creates WebClient
* @param baseAddress baseAddress
* @param providers list of providers
* @param configLocation classpath location of the configuration resource, can be null
* @return WebClient instance
*/
public static WebClient create(String baseAddress, List<?> providers, String configLocation) {
JAXRSClientFactoryBean bean = getBean(baseAddress, configLocation);
bean.setProviders(providers);
return bean.createWebClient();
}
/**
* Creates WebClient with a list of custom features
* @param baseAddress baseAddress
* @param providers list of providers
* @param features the features which will be applied to the client
* @param configLocation classpath location of the configuration resource, can be null
* @return WebClient instance
*/
public static WebClient create(String baseAddress,
List<?> providers,
List<? extends Feature> features,
String configLocation) {
JAXRSClientFactoryBean bean = getBean(baseAddress, configLocation);
bean.setProviders(providers);
bean.setFeatures(features);
return bean.createWebClient();
}
/**
* Creates WebClient
* @param baseAddress baseAddress
* @param configLocation classpath location of the configuration resource, can be null
* @return WebClient instance
*/
public static WebClient create(String baseAddress, String configLocation) {
JAXRSClientFactoryBean bean = getBean(baseAddress, configLocation);
return bean.createWebClient();
}
/**
* Creates WebClient which will do basic authentication
* @param baseAddress baseAddress
* @param username username
* @param password password
* @param configLocation classpath location of the configuration resource, can be null
* @return WebClient instance
*/
public static WebClient create(String baseAddress, String username, String password,
String configLocation) {
JAXRSClientFactoryBean bean = getBean(baseAddress, configLocation);
bean.setUsername(username);
bean.setPassword(password);
return bean.createWebClient();
}
/**
* Creates WebClient which will do basic authentication
* @param baseAddress baseAddress
* @param providers list of providers
* @param username username
* @param password password
* @param configLocation classpath location of the configuration resource, can be null
* @return WebClient instance
*/
public static WebClient create(String baseAddress, List<?> providers,
String username, String password, String configLocation) {
JAXRSClientFactoryBean bean = getBean(baseAddress, configLocation);
bean.setUsername(username);
bean.setPassword(password);
bean.setProviders(providers);
return bean.createWebClient();
}
/**
* Creates WebClient, baseURI will be set to Client currentURI
* @param object existing client object
*/
public static WebClient fromClientObject(Object object) {
Client client = client(object);
return client == null ? null : fromClient(client, false);
}
/**
* Creates WebClient, baseURI will be set to Client currentURI
* @param client existing client
*/
public static WebClient fromClient(Client client) {
return fromClient(client, false);
}
/**
* Creates WebClient, baseURI will be set to Client currentURI
* @param client existing client
* @param inheritHeaders if existing Client headers can be inherited by new client
*/
public static WebClient fromClient(Client client, boolean inheritHeaders) {
WebClient webClient = null;
ClientState clientState = getClientState(client);
if (clientState == null) {
webClient = create(client.getCurrentURI());
if (inheritHeaders) {
webClient.headers(client.getHeaders());
}
} else {
MultivaluedMap<String, String> headers = inheritHeaders ? client.getHeaders() : null;
webClient = new WebClient(clientState.newState(client.getCurrentURI(), headers, null));
}
copyProperties(webClient, client);
return webClient;
}
/**
* Converts object to Client
* @param object the object
* @return Client object converted to Client
*/
public static Client client(Object object) {
if (object instanceof Client) {
return (Client)object;
}
return null;
}
/**
* Retrieves ClientConfiguration
* @param client proxy or http-centric Client
* @return underlying ClientConfiguration instance
*/
public static ClientConfiguration getConfig(Object client) {
if (client instanceof WebTargetImpl) {
client = ((WebTargetImpl)client).getWebClient();
} else if (client instanceof InvocationBuilderImpl) {
client = ((InvocationBuilderImpl)client).getWebClient();
}
if (client instanceof Client) {
if (client instanceof WebClient) {
return ((AbstractClient)client).getConfiguration();
} else if (client instanceof InvocationHandlerAware) {
Object handler = ((InvocationHandlerAware)client).getInvocationHandler();
return ((AbstractClient)handler).getConfiguration();
}
}
throw new IllegalArgumentException("Not a valid Client");
}
/**
* Does HTTP invocation
* @param httpMethod HTTP method
* @param body request body, can be null
* @return JAXRS Response, entity may hold a string representaion of
* error message if client or server error occured
*/
public Response invoke(String httpMethod, Object body) {
return doInvoke(httpMethod, body, null, Response.class, Response.class);
}
/**
* Does HTTP POST invocation
* @param body request body, can be null
* @return JAXRS Response
*/
public Response post(Object body) {
return invoke(HttpMethod.POST, body);
}
/**
* Does HTTP PUT invocation
* @param body request body, can be null
* @return JAXRS Response
*/
public Response put(Object body) {
return invoke(HttpMethod.PUT, body);
}
/**
* Does HTTP GET invocation
* @return JAXRS Response
*/
public Response get() {
return invoke(HttpMethod.GET, null);
}
/**
* Does HTTP HEAD invocation
* @return JAXRS Response
*/
public Response head() {
return invoke(HttpMethod.HEAD, null);
}
/**
* Does HTTP OPTIONS invocation
* @return JAXRS Response
*/
public Response options() {
return invoke(HttpMethod.OPTIONS, null);
}
/**
* Does HTTP DELETE invocation
* @return JAXRS Response
*/
public Response delete() {
return invoke(HttpMethod.DELETE, null);
}
/**
* Posts form data
* @param values form values
* @return JAXRS Response
*/
public Response form(Map<String, List<Object>> values) {
type(MediaType.APPLICATION_FORM_URLENCODED);
return doInvoke(HttpMethod.POST, values, null, Response.class, Response.class);
}
/**
* Posts form data
* @param form form values
* @return JAXRS Response
*/
public Response form(Form form) {
type(MediaType.APPLICATION_FORM_URLENCODED);
return doInvoke(HttpMethod.POST, form.asMap(), null, Response.class, Response.class);
}
/**
* Does HTTP invocation and returns types response object
* @param httpMethod HTTP method
* @param body request body, can be null
* @param responseType generic response type
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T invoke(String httpMethod, Object body, GenericType<T> responseType) {
@SuppressWarnings("unchecked")
Class<T> responseClass = (Class<T>)responseType.getRawType();
Response r = doInvoke(httpMethod, body, null, responseClass, responseType.getType());
return castResponse(r, responseClass);
}
/**
* Does HTTP invocation and returns types response object
* @param httpMethod HTTP method
* @param body request body, can be null
* @param responseClass expected type of response object
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T invoke(String httpMethod, Object body, Class<T> responseClass) {
Response r = doInvoke(httpMethod, body, null, responseClass, responseClass);
return castResponse(r, responseClass);
}
/**
* Does HTTP invocation and returns types response object
* @param httpMethod HTTP method
* @param body request body, can be null
* @param requestClass request body class
* @param responseClass expected type of response object
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T invoke(String httpMethod, Object body, Class<?> requestClass, Class<T> responseClass) {
Response r = doInvoke(httpMethod, body, requestClass, null, responseClass, responseClass);
return castResponse(r, responseClass);
}
@SuppressWarnings("unchecked")
private <T> T castResponse(Response r, Class<T> responseClass) {
return (T)(responseClass == Response.class ? r : r.getEntity());
}
/**
* Does HTTP POST invocation and returns typed response object
* @param body request body, can be null
* @param responseClass expected type of response object
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T post(Object body, Class<T> responseClass) {
return invoke(HttpMethod.POST, body, responseClass);
}
/**
* Does HTTP POST invocation and returns typed response object
* @param body request body, can be null
* @param responseType generic response type
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T post(Object body, GenericType<T> responseType) {
return invoke(HttpMethod.POST, body, responseType);
}
/**
* Does HTTP Async POST invocation and returns Future.
* Shortcut for async().post(Entity, InvocationCallback)
* @param callback invocation callback
* @return the future
*/
public <T> Future<T> post(Object body, InvocationCallback<T> callback) {
return doInvokeAsyncCallback(HttpMethod.POST, body, body.getClass(), null, callback);
}
/**
* Does HTTP PUT invocation and returns typed response object
* @param body request body, can be null
* @param responseClass expected type of response object
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T put(Object body, Class<T> responseClass) {
return invoke(HttpMethod.PUT, body, responseClass);
}
/**
* Does HTTP PUT invocation and returns typed response object
* @param body request body, can be null
* @param responseType generic response type
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T put(Object body, GenericType<T> responseType) {
return invoke(HttpMethod.PUT, body, responseType);
}
/**
* Does HTTP Async PUT invocation and returns Future.
* Shortcut for async().put(Entity, InvocationCallback)
* @param callback invocation callback
* @return the future
*/
public <T> Future<T> put(Object body, InvocationCallback<T> callback) {
return doInvokeAsyncCallback(HttpMethod.PUT, body, body.getClass(), null, callback);
}
/**
* Does HTTP invocation and returns a collection of typed objects
* @param httpMethod HTTP method
* @param body request body, can be null
* @param memberClass expected type of collection member class
* @return typed collection
*/
public <T> Collection<? extends T> invokeAndGetCollection(String httpMethod, Object body,
Class<T> memberClass) {
Response r = doInvoke(httpMethod, body, null,
Collection.class, new ParameterizedCollectionType(memberClass));
return CastUtils.cast((Collection<?>)r.getEntity(), memberClass);
}
/**
* Posts a collection of typed objects
* @param collection request body
* @param memberClass type of collection member class
* @return JAX-RS Response
*/
public <T> Response postCollection(Object collection, Class<T> memberClass) {
return doInvoke(HttpMethod.POST, collection, new ParameterizedCollectionType(memberClass),
Response.class, Response.class);
}
/**
* Posts a collection of typed objects
* @param collection request body
* @param memberClass type of collection member class
* @param responseClass expected type of response object
* @return JAX-RS Response
*/
public <T1, T2> T2 postCollection(Object collection, Class<T1> memberClass,
Class<T2> responseClass) {
Response r = doInvoke(HttpMethod.POST, collection, new ParameterizedCollectionType(memberClass),
responseClass, responseClass);
return responseClass.cast(responseClass == Response.class ? r : r.getEntity());
}
/**
* Posts collection of typed objects and returns a collection of typed objects
* @param collection request body
* @param memberClass type of collection member class
* @param responseClass expected type of response object
* @return JAX-RS Response
*/
public <T1, T2> Collection<? extends T2> postAndGetCollection(Object collection,
Class<T1> memberClass,
Class<T2> responseClass) {
Response r = doInvoke(HttpMethod.POST, collection, new ParameterizedCollectionType(memberClass),
Collection.class, new ParameterizedCollectionType(responseClass));
return CastUtils.cast((Collection<?>)r.getEntity(), responseClass);
}
/**
* Posts the object and returns a collection of typed objects
* @param body request body
* @param responseClass expected type of response object
* @return JAX-RS Response
*/
public <T> Collection<? extends T> postObjectGetCollection(Object body,
Class<T> responseClass) {
Response r = doInvoke(HttpMethod.POST, body, null, Collection.class,
new ParameterizedCollectionType(responseClass));
return CastUtils.cast((Collection<?>)r.getEntity(), responseClass);
}
/**
* Posts request body and returns a collection of typed objects
* @param body request body, can be null
* @param memberClass expected type of collection member class
* @return typed collection
*/
public <T> Collection<? extends T> postAndGetCollection(Object body, Class<T> memberClass) {
return invokeAndGetCollection(HttpMethod.POST, body, memberClass);
}
/**
* Does HTTP GET invocation and returns a collection of typed objects
* @param memberClass expected type of collection member class
* @return typed collection
*/
public <T> Collection<? extends T> getCollection(Class<T> memberClass) {
return invokeAndGetCollection(HttpMethod.GET, null, memberClass);
}
/**
* Does HTTP GET invocation and returns typed response object
* @param responseClass expected type of response object
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T get(Class<T> responseClass) {
return invoke(HttpMethod.GET, null, responseClass);
}
/**
* Does HTTP GET invocation and returns typed response object
* @param responseType generic response type
* @return typed object, can be null. Response status code and headers
* can be obtained too, see Client.getResponse()
*/
public <T> T get(GenericType<T> responseType) {
return invoke(HttpMethod.GET, null, responseType);
}
/**
* Does HTTP Async GET invocation and returns Future.
* Shortcut for async().get(InvocationCallback)
* @param callback invocation callback
* @return the future
*/
public <T> Future<T> get(InvocationCallback<T> callback) {
return doInvokeAsyncCallback(HttpMethod.GET, null, null, null, callback);
}
/**
* Updates the current URI path
* @param path new relative path segment
* @return updated WebClient
*/
public WebClient path(Object path) {
getCurrentBuilder().path(convertParamValue(path, null));
return this;
}
/**
* Updates the current URI path with path segment which may contain template variables
* @param path new relative path segment
* @param values template variable values
* @return updated WebClient
*/
public WebClient path(String path, Object... values) {
URI u = new UriBuilderImpl().uri(URI.create("http://tempuri")).path(path).buildFromEncoded(values);
getState().setTemplates(getTemplateParametersMap(new URITemplate(path), Arrays.asList(values)));
return path(u.getRawPath());
}
@Override
public WebClient query(String name, Object ...values) {
return (WebClient)super.query(name, values);
}
/**
* Updates the current URI matrix parameters
* @param name matrix name
* @param values matrix values
* @return updated WebClient
*/
public WebClient matrix(String name, Object ...values) {
addMatrixQueryParamsToBuilder(getCurrentBuilder(), name, ParameterType.MATRIX, null, values);
return this;
}
/**
* Updates the current URI fragment
* @param name fragment name
* @return updated WebClient
*/
public WebClient fragment(String name) {
getCurrentBuilder().fragment(name);
return this;
}
/**
* Moves WebClient to a new baseURI or forwards to new currentURI
* @param newAddress new URI
* @param forward if true then currentURI will be based on baseURI
* @return updated WebClient
*/
public WebClient to(String newAddress, boolean forward) {
getState().setTemplates(null);
if (forward) {
if (!newAddress.startsWith("/")
&& !newAddress.startsWith(getBaseURI().toString())) {
throw new IllegalArgumentException("Base address can not be preserved");
}
resetCurrentBuilder(URI.create(newAddress));
} else {
resetBaseAddress(URI.create(newAddress));
}
return this;
}
/**
* Goes back
* @param fast if true then goes back to baseURI otherwise to a previous path segment
* @return updated WebClient
*/
public WebClient back(boolean fast) {
getState().setTemplates(null);
if (fast) {
getCurrentBuilder().replacePath(getBaseURI().getPath());
} else {
URI uri = getCurrentURI();
if (uri == getBaseURI()) {
return this;
}
List<PathSegment> segments = JAXRSUtils.getPathSegments(uri.getPath(), false);
getCurrentBuilder().replacePath(null);
for (int i = 0; i < segments.size() - 1; i++) {
getCurrentBuilder().path(HttpUtils.fromPathSegment(segments.get(i)));
}
}
return this;
}
/**
* Replaces the current path with the new value.
* @param path new path value. If it starts from "/" then all the current
* path starting from the base URI will be replaced, otherwise only the
* last path segment will be replaced. Providing a null value is equivalent
* to calling back(true)
* @return updated WebClient
*/
public WebClient replacePath(String path) {
if (path == null) {
return back(true);
}
back(path.startsWith("/") ? true : false);
return path(path);
}
/**
* Resets the current query
* @return updated WebClient
*/
public WebClient resetQuery() {
return replaceQuery(null);
}
/**
* Replaces the current query with the new value.
* @param queryString the new value, providing a null is
* equivalent to calling resetQuery().
* @return updated WebClient
*/
public WebClient replaceQuery(String queryString) {
getCurrentBuilder().replaceQuery(queryString);
return this;
}
/**
* Replaces the header value with the new values.
* @param headerName headerValues
* @param value new values, null is equivalent to removing the header
* @return updated WebClient
*/
public WebClient replaceHeader(String headerName, Object value) {
MultivaluedMap<String, String> headers = getState().getRequestHeaders();
headers.remove(headerName);
if (value != null) {
super.header(headerName, value);
}
return this;
}
/**
* Replaces the current query with the new value.
* @param queryParam query param name
* @param value the new value, providing a null is
* equivalent to calling resetQuery().
* @return updated WebClient
*/
public WebClient replaceQueryParam(String queryParam, Object... value) {
getCurrentBuilder().replaceQueryParam(queryParam, value);
return this;
}
@Override
public WebClient type(MediaType ct) {
return (WebClient)super.type(ct);
}
@Override
public WebClient type(String type) {
return (WebClient)super.type(type);
}
@Override
public WebClient accept(MediaType... types) {
return (WebClient)super.accept(types);
}
@Override
public WebClient accept(String... types) {
return (WebClient)super.accept(types);
}
@Override
public WebClient language(String language) {
return (WebClient)super.language(language);
}
@Override
public WebClient acceptLanguage(String ...languages) {
return (WebClient)super.acceptLanguage(languages);
}
@Override
public WebClient encoding(String encoding) {
return (WebClient)super.encoding(encoding);
}
@Override
public WebClient acceptEncoding(String ...encodings) {
return (WebClient)super.acceptEncoding(encodings);
}
@Override
public WebClient match(EntityTag tag, boolean ifNot) {
return (WebClient)super.match(tag, ifNot);
}
@Override
public WebClient modified(Date date, boolean ifNot) {
return (WebClient)super.modified(date, ifNot);
}
@Override
public WebClient cookie(Cookie cookie) {
return (WebClient)super.cookie(cookie);
}
@Override
public WebClient header(String name, Object... values) {
return (WebClient)super.header(name, values);
}
@Override
public WebClient headers(MultivaluedMap<String, String> map) {
return (WebClient)super.headers(map);
}
@Override
public WebClient reset() {
//clearTemplates();
return (WebClient)super.reset();
}
protected Response doInvoke(String httpMethod,
Object body,
Type inGenericType,
Class<?> responseClass,
Type outGenericType) {
return doInvoke(httpMethod, body, body == null ? null : body.getClass(), inGenericType,
responseClass, outGenericType);
}
protected Response doInvoke(String httpMethod,
Object body,
Class<?> requestClass,
Type inGenericType,
Class<?> responseClass,
Type outGenericType) {
Annotation[] inAnns = null;
if (body instanceof Entity) {
Entity<?> entity = (Entity<?>)body;
setEntityHeaders(entity);
body = entity.getEntity();
requestClass = body.getClass();
inGenericType = body.getClass();
inAnns = entity.getAnnotations();
}
if (body instanceof GenericEntity) {
GenericEntity<?> genericEntity = (GenericEntity<?>)body;
body = genericEntity.getEntity();
requestClass = genericEntity.getRawType();
inGenericType = genericEntity.getType();
}
MultivaluedMap<String, String> headers = prepareHeaders(responseClass, body);
resetResponse();
Response r = null;
try {
r = doChainedInvocation(httpMethod, headers, body, requestClass, inGenericType,
inAnns, responseClass, outGenericType, null, null);
} finally {
resetResponseStateImmediatelyIfNeeded();
}
if (r.getStatus() >= 300 && responseClass != Response.class) {
throw convertToWebApplicationException(r);
}
return r;
}
protected <T> Future<T> doInvokeAsyncCallback(String httpMethod,
Object body,
Class<?> requestClass,
Type inType,
InvocationCallback<T> callback) {
Type outType = getCallbackType(callback);
Class<?> respClass = getCallbackClass(outType);
return doInvokeAsync(httpMethod, body, requestClass, inType, respClass, outType, callback);
}
protected <T> Future<T> doInvokeAsync(String httpMethod,
Object body,
Class<?> requestClass,
Type inType,
Class<?> respClass,
Type outType,
InvocationCallback<T> callback) {
JaxrsClientCallback<T> cb = new JaxrsClientCallback<T>(callback, respClass, outType);
prepareAsyncClient(httpMethod, body, requestClass, inType, respClass, outType, cb);
return cb.createFuture();
}
protected <T> CompletionStage<T> doInvokeAsyncStage(String httpMethod,
Object body,
Class<?> respClass,
Type outType,
ExecutorService ex) {
JaxrsClientStageCallback<T> cb = new JaxrsClientStageCallback<T>(respClass, outType, ex);
prepareAsyncClient(httpMethod, body, null, null, respClass, outType, cb);
return cb.getCompletionStage();
}
@Override
public void prepareAsyncClient(String httpMethod,
Object body,
Class<?> requestClass,
Type inType,
Class<?> respClass,
Type outType,
JaxrsClientCallback<?> cb) {
Annotation[] inAnns = null;
if (body instanceof Entity) {
Entity<?> entity = (Entity<?>)body;
setEntityHeaders(entity);
body = entity.getEntity();
requestClass = body.getClass();
inType = body.getClass();
inAnns = entity.getAnnotations();
}
if (body instanceof GenericEntity) {
GenericEntity<?> genericEntity = (GenericEntity<?>)body;
body = genericEntity.getEntity();
requestClass = genericEntity.getRawType();
inType = genericEntity.getType();
}
MultivaluedMap<String, String> headers = prepareHeaders(respClass, body);
resetResponse();
Message m = finalizeMessage(httpMethod, headers, body, requestClass, inType,
inAnns, respClass, outType, null, null);
m.getExchange().setSynchronous(false);
m.getExchange().put(JaxrsClientCallback.class, cb);
doRunInterceptorChain(m);
}
private MultivaluedMap<String, String> prepareHeaders(Class<?> responseClass, Object body) {
MultivaluedMap<String, String> headers = getHeaders();
if (headers.getFirst(HttpHeaders.CONTENT_TYPE) == null && body != null) {
String contentType = body instanceof Form ? MediaType.APPLICATION_FORM_URLENCODED
: MediaType.APPLICATION_XML;
headers.putSingle(HttpHeaders.CONTENT_TYPE, contentType);
}
if (responseClass != null && responseClass != Response.class
&& headers.getFirst(HttpHeaders.ACCEPT) == null) {
headers.putSingle(HttpHeaders.ACCEPT, MediaType.WILDCARD);
}
return headers;
}
class ClientAsyncResponseInterceptor extends AbstractClientAsyncResponseInterceptor {
@Override
protected void doHandleAsyncResponse(Message message, Response r, JaxrsClientCallback<?> cb) {
if (r == null) {
try {
r = handleResponse(message.getExchange().getOutMessage(),
cb.getResponseClass(),
cb.getOutGenericType());
} catch (Throwable t) {
cb.handleException(message, t);
return;
} finally {
completeExchange(message.getExchange(), false);
}
}
if (cb.getResponseClass() == null || Response.class.equals(cb.getResponseClass())) {
cb.handleResponse(message, new Object[] {r});
} else if (r.getStatus() >= 300) {
cb.handleException(message, convertToWebApplicationException(r));
} else {
cb.handleResponse(message, new Object[] {r.getEntity()});
closeAsyncResponseIfPossible(r, message, cb);
}
}
}
//TODO: retry invocation will not work in case of async request failures for the moment
@Override
protected Object retryInvoke(URI newRequestURI,
MultivaluedMap<String, String> headers,
Object body,
Exchange exchange,
Map<String, Object> invContext) throws Throwable {
Map<String, Object> reqContext = CastUtils.cast((Map<?, ?>)invContext.get(REQUEST_CONTEXT));
String httpMethod = (String)reqContext.get(Message.HTTP_REQUEST_METHOD);
Class<?> requestClass = (Class<?>)reqContext.get(REQUEST_CLASS);
Type inType = (Type)reqContext.get(REQUEST_TYPE);
Annotation[] inAnns = (Annotation[])reqContext.get(REQUEST_ANNS);
Class<?> respClass = (Class<?>)reqContext.get(RESPONSE_CLASS);
Type outType = (Type)reqContext.get(RESPONSE_TYPE);
return doChainedInvocation(httpMethod, headers, body, requestClass, inType,
inAnns, respClass, outType, exchange, invContext);
}
//CHECKSTYLE:OFF
protected Response doChainedInvocation(String httpMethod,
MultivaluedMap<String, String> headers,
Object body,
Class<?> requestClass,
Type inType,
Annotation[] inAnns,
Class<?> respClass,
Type outType,
Exchange exchange,
Map<String, Object> invContext) {
//CHECKSTYLE:ON
Bus configuredBus = getConfiguration().getBus();
Bus origBus = BusFactory.getAndSetThreadDefaultBus(configuredBus);
ClassLoaderHolder origLoader = null;
try {
ClassLoader loader = configuredBus.getExtension(ClassLoader.class);
if (loader != null) {
origLoader = ClassLoaderUtils.setThreadContextClassloader(loader);
}
Message m = finalizeMessage(httpMethod, headers, body, requestClass, inType,
inAnns, respClass, outType, exchange, invContext);
doRunInterceptorChain(m);
return doResponse(m, respClass, outType);
} finally {
if (origLoader != null) {
origLoader.reset();
}
if (origBus != configuredBus) {
BusFactory.setThreadDefaultBus(origBus);
}
}
}
//CHECKSTYLE:OFF
private Message finalizeMessage(String httpMethod,
MultivaluedMap<String, String> headers,
Object body,
Class<?> requestClass,
Type inGenericType,
Annotation[] inAnns,
Class<?> responseClass,
Type outGenericType,
Exchange exchange,
Map<String, Object> invContext) {
//CHECKSTYLE:ON
URI uri = getCurrentURI();
Message m = createMessage(body, httpMethod, headers, uri, exchange,
invContext, false);
setSupportOnewayResponseProperty(m);
if (inAnns != null) {
m.put(Annotation.class.getName(), inAnns);
}
Map<String, Object> reqContext = getRequestContext(m);
reqContext.put(Message.HTTP_REQUEST_METHOD, httpMethod);
reqContext.put(REQUEST_CLASS, requestClass);
reqContext.put(REQUEST_TYPE, inGenericType);
reqContext.put(REQUEST_ANNS, inAnns);
reqContext.put(RESPONSE_CLASS, responseClass);
reqContext.put(RESPONSE_TYPE, outGenericType);
if (body != null) {
m.put(Type.class, inGenericType);
}
m.getInterceptorChain().add(bodyWriter);
setWebClientOperationProperty(m, httpMethod);
return m;
}
private void setWebClientOperationProperty(Message m, String httpMethod) {
Object prop = m.getContextualProperty(WEB_CLIENT_OPERATION_REPORTING);
// Enable the operation reporting by default
if (prop == null || PropertyUtils.isTrue(prop)) {
UriBuilder absPathUri = super.getCurrentBuilder().clone();
absPathUri.replaceQuery(null);
setPlainOperationNameProperty(m, httpMethod + ":" + absPathUri.build().toString());
}
}
protected Response doResponse(Message m,
Class<?> responseClass,
Type outGenericType) {
try {
Object[] results = preProcessResult(m);
if (results != null && results.length == 1) {
return (Response)results[0];
}
} catch (Exception ex) {
throw ex instanceof WebApplicationException
? (WebApplicationException)ex
: ex instanceof ProcessingException
? (ProcessingException)ex : new ProcessingException(ex);
}
try {
return handleResponse(m, responseClass, outGenericType);
} finally {
completeExchange(m.getExchange(), false);
}
}
protected Response handleResponse(Message outMessage, Class<?> responseClass, Type genericType) {
try {
ResponseBuilder rb = setResponseBuilder(outMessage, outMessage.getExchange());
Response currentResponse = rb.clone().build();
((ResponseImpl)currentResponse).setOutMessage(outMessage);
Object entity = readBody(currentResponse, outMessage, responseClass, genericType,
new Annotation[]{});
if (entity == null) {
int status = currentResponse.getStatus();
if (status >= 400) {
entity = currentResponse.getEntity();
}
}
rb = JAXRSUtils.fromResponse(currentResponse);
rb.entity(entity instanceof Response
? ((Response)entity).getEntity() : entity);
Response r = rb.build();
getState().setResponse(r);
((ResponseImpl)r).setOutMessage(outMessage);
return r;
} catch (Throwable ex) {
throw (ex instanceof ProcessingException) ? (ProcessingException)ex
: new ProcessingException(ex);
} finally {
ClientProviderFactory.getInstance(outMessage).clearThreadLocalProxies();
}
}
private class BodyWriter extends AbstractBodyWriter {
protected void doWriteBody(Message outMessage,
Object body,
Type bodyType,
Annotation[] customAnns,
OutputStream os) throws Fault {
Map<String, Object> requestContext = WebClient.this.getRequestContext(outMessage);
Class<?> requestClass = null;
Type requestType = null;
if (requestContext != null) {
requestClass = (Class<?>)requestContext.get(REQUEST_CLASS);
requestType = (Type)requestContext.get(REQUEST_TYPE);
}
if (bodyType != null) {
requestType = bodyType;
}
Annotation[] anns = customAnns != null ? customAnns : new Annotation[]{};
boolean isAssignable = requestClass != null && requestClass.isAssignableFrom(body.getClass());
try {
writeBody(body, outMessage,
requestClass == null || !isAssignable ? body.getClass() : requestClass,
requestType == null || !isAssignable ? body.getClass() : requestType,
anns, os);
} catch (Exception ex) {
throw new Fault(ex);
}
}
}
static void copyProperties(Client toClient, Client fromClient) {
AbstractClient newClient = toAbstractClient(toClient);
AbstractClient oldClient = toAbstractClient(fromClient);
newClient.setConfiguration(oldClient.getConfiguration());
}
private static AbstractClient toAbstractClient(Object client) {
if (client instanceof AbstractClient) {
return (AbstractClient)client;
} else if (client instanceof InvocationHandlerAware) {
return (AbstractClient)((InvocationHandlerAware)client).getInvocationHandler();
} else {
Object realObject = ClassHelper.getRealObject(client);
if (realObject instanceof AbstractClient) {
return (AbstractClient)realObject;
}
}
return null;
}
static JAXRSClientFactoryBean getBean(String baseAddress, String configLocation) {
JAXRSClientFactoryBean bean = new JAXRSClientFactoryBean();
if (configLocation != null) {
SpringBusFactory bf = new SpringBusFactory();
Bus bus = bf.createBus(configLocation);
bean.setBus(bus);
}
bean.setAddress(baseAddress);
return bean;
}
static ClientState getClientState(Client client) {
AbstractClient newClient = toAbstractClient(client);
if (newClient == null) {
return null;
} else {
return newClient.getState();
}
}
static URI convertStringToURI(String baseAddress) {
try {
return URI.create(baseAddress);
} catch (RuntimeException ex) {
// no need to check "https" scheme or indeed ':'
// as the relative address will not work as the base address
if (baseAddress.startsWith(HTTP_SCHEME)) {
return new UriBuilderImpl().uriAsTemplate(baseAddress).build();
} else {
throw ex;
}
}
}
// Link to JAX-RS 2.0 AsyncInvoker
public AsyncInvoker async() {
return new AsyncInvokerImpl(this);
}
// Link to JAX-RS 2.0 SyncInvoker
public SyncInvoker sync() {
return new SyncInvokerImpl(this);
}
// Link to JAX-RS 2.1 CompletionStageRxInvoker
public CompletionStageRxInvoker rx() {
return rx((ExecutorService)null);
}
public CompletionStageRxInvoker rx(ExecutorService ex) {
return new CompletionStageRxInvokerImpl(this, ex);
}
// Link to JAX-RS 2.1 RxInvoker extensions
@SuppressWarnings("rawtypes")
public <T extends RxInvoker> T rx(Class<T> rxCls) {
return rx(rxCls, (ExecutorService)null);
}
@SuppressWarnings({
"rawtypes", "unchecked"
})
public <T extends RxInvoker> T rx(Class<T> rxCls, ExecutorService executorService) {
if (CompletionStageRxInvoker.class.isAssignableFrom(rxCls)) {
return (T)rx(executorService);
}
ClientProviderFactory pf =
ClientProviderFactory.getInstance(WebClient.getConfig(this).getEndpoint());
RxInvokerProvider rxProvider = pf.getRxInvokerProvider();
if (rxProvider != null && rxProvider.isProviderFor(rxCls)) {
return (T)rxProvider.getRxInvoker(sync(), executorService);
}
throw new IllegalStateException("Provider for " + rxCls.getName() + " is not available");
}
private void setEntityHeaders(Entity<?> entity) {
type(entity.getMediaType());
if (entity.getLanguage() != null) {
language(entity.getLanguage().toString());
}
if (entity.getEncoding() != null) {
encoding(entity.getEncoding());
}
}
}