/*
* Copyright 2012 the original author or authors.
*
* Licensed 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 com.oreilly.springdata.rest.client;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.hateoas.Link;
import org.springframework.hateoas.Resource;
import org.springframework.hateoas.ResourceSupport;
import org.springframework.hateoas.Resources;
import org.springframework.web.client.RestOperations;
/**
* Sample client to access {@link Products} exposed by the REST exporter.
*
* @author Oliver Gierke
*/
class ProductsClient {
/**
* A sample DTO to have a {@link Resource} object typed to {@link com.oreilly.springdata.rest.core.Product}.
*
* @author Oliver Gierke
*/
static class Product extends Resource<com.oreilly.springdata.rest.core.Product> {
}
/**
* A DTO for a paged collection resource of {@link Product}s.
*
* @author Oliver Gierke
*/
static class Products extends Resources<Product> {
}
public static void main(String[] args) {
// Bootstrap RestOperations instance using Spring
ConfigurableApplicationContext context = new AnnotationConfigApplicationContext(ClientConfiguration.class);
context.registerShutdownHook();
RestOperations operations = context.getBean(RestOperations.class);
// Access root resource
ResourceSupport root = operations.getForObject(ClientConfiguration.BASE_URL, Resource.class);
Link productLink = root.getLink(ClientConfiguration.PRODUCTS_REL);
// Follow link to access products
Products products = operations.getForObject(productLink.getHref(), Products.class);
System.out.println(products.getContent().iterator().next());
}
}