com.javafxpert.wikibrowser.WikiBitlyController.java Source code

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Here is the source code for com.javafxpert.wikibrowser.WikiBitlyController.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 com.javafxpert.wikibrowser;

import com.javafxpert.wikibrowser.model.bitly.BitlyDataFar;
import com.javafxpert.wikibrowser.model.bitly.BitlyResponseFar;
import com.javafxpert.wikibrowser.model.bitly.BitlyResponseNear;
import com.javafxpert.wikibrowser.model.conceptmap.*;
import com.javafxpert.wikibrowser.model.search.SearchFar;
import com.javafxpert.wikibrowser.model.search.SearchResponseFar;
import com.javafxpert.wikibrowser.model.search.SearchResponseNear;
import com.javafxpert.wikibrowser.model.search.SearchinfoFar;
import com.javafxpert.wikibrowser.util.WikiBrowserUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.*;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLEncoder;
import java.util.*;

/**
 * Created by jamesweaver on 10/13/15.
 */
@RestController
@RequestMapping("/bitly")
public class WikiBitlyController {
    private Log log = LogFactory.getLog(getClass());

    private final WikiBrowserProperties wikiBrowserProperties;

    @Autowired
    public WikiBitlyController(WikiBrowserProperties wikiBrowserProperties) {
        this.wikiBrowserProperties = wikiBrowserProperties;
    }

    @RequestMapping(method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Object> search(@RequestParam(value = "items", defaultValue = "") String items,
            @RequestParam(value = "lang") String lang) {
        // Example endpoint usage is bitly?items=Q24, Q30, Q23, Q16, Q20&lang=fr
        // Scrub the input, and output a string for the Bitly service similar to the following:
        // Q24,Q30,Q23,Q16,Q20
        String argStr = WikiBrowserUtils.scrubItemIds(items, false);
        log.info("argStr=" + argStr);

        BitlyResponseNear bitlyResponseNear = null;

        if (argStr.length() > 0) {
            String blat = wikiBrowserProperties.getBlat();
            String bitlyUrlPart = "https://api-ssl.bitly.com/v3/shorten?access_token=" + blat + "&longUrl=";

            String conceptMapUrlPart = null;

            try {
                conceptMapUrlPart = URLEncoder.encode("http://conceptmap.io?items=" + argStr + "&lang=" + lang,
                        "UTF-8");
            } catch (UnsupportedEncodingException uee) {
                log.error("Exception whild encoding for bitly");
            }

            bitlyResponseNear = bitlyServiceResponse(bitlyUrlPart + conceptMapUrlPart);
        } else {
            log.warn("Invalid argument to WikiBitlyController /bitly endpoint: \"" + items + "\"");
        }

        return Optional.ofNullable(bitlyResponseNear).map(cr -> new ResponseEntity<>((Object) cr, HttpStatus.OK))
                .orElse(new ResponseEntity<>("Bitly request unsuccessful", HttpStatus.INTERNAL_SERVER_ERROR));
    }

    /**
     * Calls the Bitly URL shortener service and returns an object that holds results
     * @param bitlyRequestUrl
     * @return
     */
    private BitlyResponseNear bitlyServiceResponse(String bitlyRequestUrl) {
        log.info("bitlyRequestUrl: " + bitlyRequestUrl);

        BitlyResponseFar bitlyResponseFar = null;
        BitlyResponseNear bitlyResponseNear = new BitlyResponseNear();
        try {
            bitlyResponseFar = new RestTemplate().getForObject(new URI(bitlyRequestUrl), BitlyResponseFar.class);
            log.info("bitlyResponseFar: " + bitlyResponseFar.toString());

            int statusCode = bitlyResponseFar.getStatusCode();
            if (statusCode == 200) {
                bitlyResponseNear.setStatusCode(bitlyResponseFar.getStatusCode());
                bitlyResponseNear.setStatusTxt(bitlyResponseFar.getStatusTxt());
                bitlyResponseNear.setLongUrl(bitlyResponseFar.getBitlyDataFar().getLongUrl());
                bitlyResponseNear.setUrl(bitlyResponseFar.getBitlyDataFar().getUrl());
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.info("Caught exception when calling Bitly URL shortener service " + e);
        }

        return bitlyResponseNear;
    }
}