Java tutorial
/* * Copyright 2015 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 * * https://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.springframework.social.facebook.api.impl; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.springframework.social.facebook.api.GraphApi; import org.springframework.social.facebook.api.ImageType; import org.springframework.social.facebook.api.PagedList; import org.springframework.social.facebook.api.Permission; import org.springframework.social.facebook.api.PlaceTag; import org.springframework.social.facebook.api.Reference; import org.springframework.social.facebook.api.User; import org.springframework.social.facebook.api.UserIdForApp; import org.springframework.social.facebook.api.UserOperations; import org.springframework.util.LinkedMultiValueMap; import org.springframework.util.MultiValueMap; import org.springframework.web.client.RestTemplate; import com.fasterxml.jackson.databind.JsonNode; class UserTemplate implements UserOperations { private final GraphApi graphApi; private final RestTemplate restTemplate; public UserTemplate(GraphApi graphApi, RestTemplate restTemplate) { this.graphApi = graphApi; this.restTemplate = restTemplate; } public User getUserProfile() { return getUserProfile("me"); } public User getUserProfile(String facebookId) { return graphApi.fetchObject(facebookId, User.class, PROFILE_FIELDS); } public byte[] getUserProfileImage() { return getUserProfileImage("me", ImageType.NORMAL); } public byte[] getUserProfileImage(String userId) { return getUserProfileImage(userId, ImageType.NORMAL); } public byte[] getUserProfileImage(ImageType imageType) { return getUserProfileImage("me", imageType); } public byte[] getUserProfileImage(String userId, ImageType imageType) { return graphApi.fetchImage(userId, "picture", imageType); } public byte[] getUserProfileImage(Integer width, Integer height) { return getUserProfileImage("me", width, height); } public byte[] getUserProfileImage(String userId, Integer width, Integer height) { return graphApi.fetchImage(userId, "picture", width, height); } public List<Permission> getUserPermissions() { JsonNode responseNode = restTemplate.getForObject(graphApi.getBaseGraphApiUrl() + "me/permissions", JsonNode.class); return deserializePermissionsNodeToList(responseNode); } public List<UserIdForApp> getIdsForBusiness() { return graphApi.fetchConnections("me", "ids_for_business", UserIdForApp.class); } public List<PlaceTag> getTaggedPlaces() { return graphApi.fetchConnections("me", "tagged_places", PlaceTag.class); } public PagedList<Reference> search(String query) { MultiValueMap<String, String> queryMap = new LinkedMultiValueMap<String, String>(); queryMap.add("q", query); queryMap.add("type", "user"); return graphApi.fetchConnections("search", null, Reference.class, queryMap); } private List<Permission> deserializePermissionsNodeToList(JsonNode jsonNode) { JsonNode dataNode = jsonNode.get("data"); List<Permission> permissions = new ArrayList<Permission>(); for (Iterator<JsonNode> elementIt = dataNode.elements(); elementIt.hasNext();) { JsonNode permissionsElement = elementIt.next(); String name = permissionsElement.get("permission").asText(); String status = permissionsElement.get("status").asText(); permissions.add(new Permission(name, status)); } return permissions; } }