example.stores.StarbucksClient.java Source code

Introduction

Here is the source code for example.stores.StarbucksClient.java

Source

/*
 * Copyright 2014 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 example.stores;

import java.net.URI;
import java.util.HashMap;
import java.util.Map;

import org.springframework.core.ParameterizedTypeReference;
import org.springframework.hateoas.MediaTypes;
import org.springframework.hateoas.PagedResources;
import org.springframework.hateoas.PagedResources.PageMetadata;
import org.springframework.hateoas.Resource;
import org.springframework.hateoas.client.Traverson;

/**
 * @author Oliver Gierke
 */
public class StarbucksClient {

    private static final ParameterizedTypeReference<PagedResources<Resource<Store>>> TYPE_REFERENCE = new ParameterizedTypeReference<PagedResources<Resource<Store>>>() {
    };

    public static void main(String[] args) {

        Traverson traverson = new Traverson(URI.create("http://localhost:8080"), MediaTypes.HAL_JSON);

        Map<String, Object> parameters = new HashMap<>();
        parameters.put("location", "40.740337,-73.995146");
        parameters.put("distance", "0.5miles");

        PagedResources<Resource<Store>> resources = traverson. //
                follow("stores", "search", "by-location").//
                withTemplateParameters(parameters).//
                toObject(TYPE_REFERENCE);

        PageMetadata metadata = resources.getMetadata();

        System.out.println(
                String.format("Got %s of %s stores: ", resources.getContent().size(), metadata.getTotalElements()));

        for (Resource<Store> resource : resources) {

            Store store = resource.getContent();

            System.out.println(String.format("- %s - %s", store.name, store.address));
        }
    }

    static class Store {

        public String name;
        public Address address;

        static class Address {

            public String city, zip, street;
            public Location location;

            @Override
            public String toString() {
                return String.format("%s, %s %s - lat: %s, long: %s", street, zip, city, location.y, location.x);
            }

            static class Location {
                public double x, y;
            }
        }
    }
}