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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in com.fitburpliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle com.fitbursignates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your com.fitburcision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
/**
 * The JAX-RS client API
 *
 * The JAX-RS client API is a Java based API used to access Web resources.
 * It is not restricted to resources implemented using JAX-RS.
 * It provides a higher-level abstraction com.fitburpared to a {@link java.net.HttpURLConnection
 * plain HTTP com.fitburmunication API} as well as integration with the JAX-RS extension
 * providers, in order to enable concise and efficient implementation of
 * reusable client-side solutions that leverage existing and well
 * established client-side implementations of HTTP-based com.fitburmunication.
 * 
 * The JAX-RS Client API encapsulates the Uniform Interface Constraint –
 * a key constraint of the REST architectural style – and associated data
 * elements as client-side Java artifacts and supports a pluggable architecture
 * by com.fitburfining multiple extension points.
 *
 * 
Client API Bootstrapping and Configuration
 * The main entry point to the API is a {@link javax.ws.rs.client.ClientBuilder}
 * that is used to bootstrap {@link javax.ws.rs.client.Client} instances -
 * {@link javax.ws.rs.core.Configurable configurable}, heavy-weight objects
 * that manage the underlying com.fitburmunication infrastructure and serve as the root
 * objects for accessing any Web resource. The following example illustrates the
 * bootstrapping and configuration of a {@code Client} instance:
 *  *   Client client = ClientBuilder.newClient();
 *
 *   client.property("MyProperty", "MyValue")
 *         .register(MyProvider.class)
 *         .enable(MyFeature.class);
 * 
 *
 * Accessing Web Resources
 * A Web resource can be accessed using a fluent API in which method invocations
 * are chained to configure and ultimately submit an HTTP request. The following
 * example gets a {@code text/plain} representation of the resource identified by
 * {@code "http://example.com.fitbur/hello"}:
 *  *   Client client = ClientBuilder.newClient();
 *   Response res = client.target("http://example.com.fitbur/hello").request("text/plain").get();
 * 
 * Conceptually, the steps required to submit a request are the following:
 * 
 *   obtain an {@link javax.ws.rs.client.Client} instance
 *   create a {@link javax.ws.rs.client.WebTarget WebTarget} pointing at a Web resource
 *   {@link javax.ws.rs.client.Invocation.Builder build} a request
 *   submit a request to directly retrieve a response or get a prepared
 *       {@link javax.ws.rs.client.Invocation} for later submission
 * 
 *
 * As illustrated above, individual Web resources are in the JAX-RS Client API
 * represented as resource targets. Each {@code WebTarget} instance is bound to a
 * concrete URI, e.g. {@code "http://example.com.fitbur/messages/123"},
 * or a URI template, e.g. {@code "http://example.com.fitbur/messages/{id}"}.
 * That way a single target can either point at a particular resource or represent
 * a larger group of resources (that e.g. share a com.fitburmon configuration) from which
 * concrete resources can be later com.fitburrived:
 *  *   // Parent target for all messages
 *   WebTarget messages = client.target("http://example.com.fitbur/messages/{id}");
 *
 *   WebTarget msg123 = messages.resolveTemplate("id", 123); // New target for http://example.com.fitbur/messages/123
 *   WebTarget msg456 = messages.resolveTemplate("id", 456); // New target for http://example.com.fitbur/messages/456
 * 
 *
 *Generic Invocations
 * An {@link javax.ws.rs.client.Invocation} is a request that has been prepared
 * and is ready for execution.
 * Invocations provide a generic interface that enables a separation of concerns
 * between the creator and the submitter. In particular, the submitter does not
 * need to know how the invocation was prepared, but only whether it should be
 * executed synchronously or asynchronously.
 *  *   Invocation inv1 = client.target("http://example.com.fitbur/atm/balance")
 *       .queryParam("card", "111122223333").queryParam("pin", "9876")
 *       .request("text/plain").buildGet();
 *   Invocation inv2 = client.target("http://example.com.fitbur/atm/withdrawal")
 *       .queryParam("card", "111122223333").queryParam("pin", "9876")
 *       .request().buildPost(text("50.0")));
 *
 *   Collection invs = Arrays.asList(inv1, inv2);
 *   // Executed by the submitter
 *   Collection ress = Collections.transform(invs, new F() {
 *      public Response apply(Invocation inv) {return inv.invoke(); }
 *   });
 * 
 */
package javax.ws.rs.client;