ai.emot.api.impl.EmotAITemplate.java Source code

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Here is the source code for ai.emot.api.impl.EmotAITemplate.java

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/*
 * 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
 *
 *      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 ai.emot.api.impl;

import java.util.List;

import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.social.oauth2.AbstractOAuth2ApiBinding;
import org.springframework.social.support.ClientHttpRequestFactorySelector;
import org.springframework.web.client.RestTemplate;

import ai.emot.api.EmotAI;
import ai.emot.api.EmotionOperations;

import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Michael Lavelle
 */
public class EmotAITemplate extends AbstractOAuth2ApiBinding implements EmotAI {

    private EmotionOperations emotionOperations;

    private ObjectMapper objectMapper;

    /**
     * Create a new instance of EmotAI. This constructor creates the
     * EmotAITemplate using a given access token and apiBaseUrl
     * 
     * @param qpiBaseUrl
     * @param accessToken
     */
    public EmotAITemplate(String qpiBaseUrl, String accessToken) {
        super(accessToken);
        initialize(qpiBaseUrl, accessToken);
    }

    @Override
    protected List<HttpMessageConverter<?>> getMessageConverters() {
        List<HttpMessageConverter<?>> messageConverters = super.getMessageConverters();
        messageConverters.add(new BufferedImageHttpMessageConverter());
        return messageConverters;
    }

    @Override
    protected void configureRestTemplate(RestTemplate restTemplate) {
    }

    private void initSubApis(String oauthApiBaseUrl, String accessToken) {

        emotionOperations = new EmotionTemplate(oauthApiBaseUrl, getRestTemplate(), isAuthorized());

    }

    @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 EmotionOperations emotionOperations() {
        return emotionOperations;
    }

}