org.springframework.social.cloudplaylists.api.impl.CloudPlaylistsTemplate.java Source code

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Here is the source code for org.springframework.social.cloudplaylists.api.impl.CloudPlaylistsTemplate.java

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/*
 * 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 org.springframework.social.cloudplaylists.api.impl;

import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.social.NotAuthorizedException;
import org.springframework.social.cloudplaylists.api.CloudPlaylists;
import org.springframework.social.cloudplaylists.api.MeOperations;
import org.springframework.social.cloudplaylists.api.SearchOperations;
import org.springframework.social.cloudplaylists.api.UsersOperations;
import org.springframework.social.oauth2.AbstractOAuth2ApiBinding;
import org.springframework.social.support.ClientHttpRequestFactorySelector;
import org.springframework.web.client.RestTemplate;

import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Michael Lavelle
 */
public class CloudPlaylistsTemplate extends AbstractOAuth2ApiBinding implements CloudPlaylists {

    private MeOperations meOperations;
    private UsersOperations usersOperations;
    private SearchOperations searchOperations;

    private ObjectMapper objectMapper;

    /**
     * Create a new instance of CloudPlaylistsTemplate. This constructor creates
     * a new CloudPlaylistsTemplate able to perform unauthenticated operations
     * against ExFm's API. Some operations do not require OAuth authentication.
     * For example, retrieving a specified user's profile or loved tracks does
     * not require authentication . An CloudPlaylistsTemplate created with this
     * constructor will support those operations. Those operations requiring
     * authentication will throw {@link NotAuthorizedException}.
     */
    public CloudPlaylistsTemplate(String apiBaseUrl) {
        initialize(apiBaseUrl, null);
    }

    /**
     * Create a new instance of CloudPlaylistsTemplate. This constructor creates
     * the CloudPlaylistsTemplate using a given access token
     * 
     * @param oauthApiBaseUrl
     *            An OAuth API Base url for Sparklr
     * @param accessToken
     *            An access token given by CloudPlaylistsTemplate after a
     *            successful OAuth 2 authentication
     */
    public CloudPlaylistsTemplate(String oauthApiBaseUrl, String accessToken) {
        super(accessToken);
        initialize(oauthApiBaseUrl, accessToken);
    }

    private void initSubApis(String oauthApiBaseUrl, String accessToken) {

        meOperations = new MeTemplate(oauthApiBaseUrl, getRestTemplate(), isAuthorized());
        usersOperations = new UsersTemplate(oauthApiBaseUrl, getRestTemplate(), isAuthorized());

        searchOperations = new SearchTemplate(oauthApiBaseUrl, getRestTemplate(), isAuthorized());

    }

    @Override
    protected void configureRestTemplate(RestTemplate restTemplate) {
        restTemplate.setErrorHandler(new CloudPlaylistsErrorHandler());
    }

    @Override
    protected MappingJackson2HttpMessageConverter getJsonMessageConverter() {
        MappingJackson2HttpMessageConverter converter = super.getJsonMessageConverter();
        objectMapper = new ObjectMapper();
        converter.setObjectMapper(objectMapper);
        return converter;
    }

    // private helpers
    private void initialize(String apiBaseUrl, String accessToken) {
        // Wrap the request factory with a BufferingClientHttpRequestFactory so
        // that the error handler can do repeat reads on the response.getBody()
        super.setRequestFactory(
                ClientHttpRequestFactorySelector.bufferRequests(getRestTemplate().getRequestFactory()));
        initSubApis(apiBaseUrl, accessToken);

    }

    @Override
    public MeOperations meOperations() {
        return meOperations;
    }

    @Override
    public UsersOperations usersOperations() {
        return usersOperations;
    }

    @Override
    public SearchOperations searchOperations() {
        return searchOperations;
    }

}