Example usage for org.springframework.web.client AsyncRestTemplate getForEntity

Introduction

In this page you can find the example usage for org.springframework.web.client AsyncRestTemplate getForEntity.

Prototype

@Override
    public <T> ListenableFuture<ResponseEntity<T>> getForEntity(URI url, Class<T> responseType)
            throws RestClientException 

Source Link

Usage

From source file:de.loercher.localpress.core.api.LocalPressController.java

@RequestMapping(value = "/articles/new", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<String> getNewArticlesAround(@RequestParam Double lat, @RequestParam Double lon)
        throws InterruptedException, ExecutionException, JsonProcessingException {
    UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(GEO_URL).queryParam("lat", lat.toString())
            .queryParam("lon", lon.toString());

    RestTemplate template = new RestTemplate();
    List<Map<String, Object>> geoResponse = template.getForObject(builder.build().encode().toUri(), List.class);

    Iterator<Map<String, Object>> it = geoResponse.iterator();
    List<Future<ResponseEntity<Map>>> jobs = new ArrayList<>();

    // to be able to merge answers from rating to geoitems there is a need 
    // to map the article to its articleID
    // (articleID) => (articleItem)
    Map<String, Map<String, Object>> mappedResponseObjects = new HashMap<>();
    while (it.hasNext()) {
        Map<String, Object> item = it.next();

        AsyncRestTemplate async = new AsyncRestTemplate();
        Future<ResponseEntity<Map>> futureResult = async.getForEntity((String) item.get("rating"), Map.class);
        jobs.add(futureResult);//from w w w  . j  a  v  a2 s. com
        mappedResponseObjects.put((String) item.get("articleID"), item);
    }

    for (Future<ResponseEntity<Map>> job : jobs) {
        Map<String, Object> ratingMap = job.get().getBody();
        String articleID = (String) ratingMap.get("articleID");

        mappedResponseObjects.get(articleID).putAll(ratingMap);
    }

    WeightingPolicy policy = new WeightingPolicyImpl();
    List<Map<String, Object>> orderedResponse = policy.sortExcludingRating(mappedResponseObjects.values());
    List<Map<String, Object>> result = new ResponseMapFilterImpl().filter(orderedResponse);

    return new ResponseEntity<>(objectMapper.writeValueAsString(result), HttpStatus.OK);
}

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From source file:de.loercher.localpress.core.api.LocalPressController.java

@RequestMapping(value = "/articles", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<String> getArticlesAround(@RequestParam Double lat, @RequestParam Double lon)
        throws InterruptedException, ExecutionException, JsonProcessingException {
    UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(GEO_URL).queryParam("lat", lat.toString())
            .queryParam("lon", lon.toString());

    RestTemplate template = new RestTemplate();
    List<Map<String, Object>> geoResponse = template.getForObject(builder.build().encode().toUri(), List.class);

    Iterator<Map<String, Object>> it = geoResponse.iterator();
    List<Future<ResponseEntity<Map>>> jobs = new ArrayList<>();

    // to be able to merge answers from rating to geoitems there is a need 
    // to map the article to its articleID
    // (articleID) => (articleItem)
    Map<String, Map<String, Object>> mappedResponseObjects = new HashMap<>();
    while (it.hasNext()) {
        Map<String, Object> item = it.next();

        AsyncRestTemplate async = new AsyncRestTemplate();
        Future<ResponseEntity<Map>> futureResult = async.getForEntity((String) item.get("rating"), Map.class);
        jobs.add(futureResult);/*ww w.  j ava2 s  . co m*/
        mappedResponseObjects.put((String) item.get("articleID"), item);
    }

    for (Future<ResponseEntity<Map>> job : jobs) {
        Map<String, Object> ratingMap = job.get().getBody();
        String articleID = (String) ratingMap.get("articleID");

        if ((Boolean) ratingMap.get("appropriate")) {
            mappedResponseObjects.get(articleID).putAll(ratingMap);
        } else {
            mappedResponseObjects.remove(articleID);
        }
    }

    WeightingPolicy policy = new WeightingPolicyImpl();
    List<Map<String, Object>> orderedResponse = policy.sortIncludingRating(mappedResponseObjects.values());
    List<Map<String, Object>> result = new ResponseMapFilterImpl().filter(orderedResponse);

    return new ResponseEntity<>(objectMapper.writeValueAsString(result), HttpStatus.OK);
}

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