Examples of org.springframework.web.client.RestTemplate

org.springframework.web.client.RestTemplate
le.com/hotels/{hotel}/bookings/{booking}", String.class,"42", "21"); will perform a GET on {@code http://example.com/hotels/42/bookings/21}. The map variant expands the template based on variable name, and is therefore more useful when using many variables, or when a single variable is used multiple times. For example:
```
 Map<String, String> vars = Collections.singletonMap("hotel", "42"); String result = restTemplate.getForObject("http://example.com/hotels/{hotel}/rooms/{hotel}", String.class, vars); 
```
will perform a GET on {@code http://example.com/hotels/42/rooms/42}. Alternatively, there are {@link URI} variantmethods ( {@link #getForObject(URI,Class)}), which do not allow for URI templates, but allow you to reuse a single, expanded URI multiple times.
Furthermore, the {@code String}-argument methods assume that the URL String is unencoded. This means that
```
 restTemplate.getForObject("http://example.com/hotel list"); 
```
will perform a GET on {@code http://example.com/hotel%20list}. As a result, any URL passed that is already encoded will be encoded twice (i.e. {@code http://example.com/hotel%20list} will become {@code http://example.com/hotel%2520list}). If this behavior is undesirable, use the {@code URI}-argument methods, which will not perform any URL encoding.
Objects passed to and returned from these methods are converted to and from HTTP messages by {@link HttpMessageConverter} instances. Converters for the main mime types are registered by default, but you can also writeyour own converter and register it via the {@link #setMessageConverters messageConverters} bean property.
This template uses a {@link org.springframework.http.client.SimpleClientHttpRequestFactory} and a {@link DefaultResponseErrorHandler} as default strategies for creating HTTP connections or handling HTTP errors,respectively. These defaults can be overridden through the {@link #setRequestFactory(ClientHttpRequestFactory) requestFactory} and {@link #setErrorHandler(ResponseErrorHandler) errorHandler} bean properties. @author Arjen Poutsma @see HttpMessageConverter @see RequestCallback @see ResponseExtractor @see ResponseErrorHandler @since 3.0

    /**
     * Create a JSON REST Template for requests
     * @return a RestTemplate configured to process JSON data
     */
    private RestTemplate getRestJsonTemplate(){
        RestTemplate restTemplate = new RestTemplate();
        List<HttpMessageConverter<?>> mc = restTemplate.getMessageConverters();
        // Add JSON message handler
        MappingJacksonHttpMessageConverter json = new MappingJacksonHttpMessageConverter();
        List<MediaType> supportedMediaTypes = new ArrayList<MediaType>();
        supportedMediaTypes.add(new MediaType("application","json", Charset.forName("UTF-8")));
        // Add default media type in case marketplace uses incorrect MIME type, otherwise
        // Spring refuses to process it, even if its valid JSON
        supportedMediaTypes.add(new MediaType("application","octet-stream", Charset.forName("UTF-8")));
        json.setSupportedMediaTypes(supportedMediaTypes);
        mc.add(json);
        restTemplate.setMessageConverters(mc);
        return restTemplate;
    }

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        }
        add(selfRegFrag);
    }


    private String[] authenticate(final String userId, final String password) {
        final RestTemplate restTemplate = SyncopeSession.get().getRestTemplate();


        // 1. Set provided credentials to check
        PreemptiveAuthHttpRequestFactory requestFactory =
                ((PreemptiveAuthHttpRequestFactory) restTemplate.getRequestFactory());


        ((DefaultHttpClient) requestFactory.getHttpClient()).getCredentialsProvider().setCredentials(
                requestFactory.getAuthScope(), new UsernamePasswordCredentials(userId, password));


        // 2. Search authorizations for user specified by credentials

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                ? false
                : result.booleanValue();
    }


    private String getSyncopeVersion() {
        final RestTemplate restTemplate = SyncopeSession.get().getRestTemplate();


        PreemptiveAuthHttpRequestFactory requestFactory = ((PreemptiveAuthHttpRequestFactory) restTemplate.
                getRequestFactory());


        String version = "";
        try {
            HttpGet get = new HttpGet(baseURL + "../version.jsp");

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        ((DefaultHttpClient) requestFactory.getHttpClient()).getCredentialsProvider().setCredentials(
                requestFactory.getAuthScope(), new UsernamePasswordCredentials(uid, pwd));
    }


    private RestTemplate getAnonymousRestTemplate() {
        RestTemplate template = new RestTemplate(httpClientFactory);
        List<HttpMessageConverter<?>> converters = new ArrayList<HttpMessageConverter<?>>();
        converters.add(mappingJacksonHttpMessageConverter);
        template.setMessageConverters(converters);
        template.setErrorHandler(new SyncopeClientErrorHandler());
        return template;
    }

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  @RequestMapping(value="/{time}", method = RequestMethod.GET)
  public @ResponseBody MyData getMyData(
      @PathVariable long time) {
    
    RestTemplate restTemplate = new RestTemplate();
    
    String remote = "http://localhost:8585/spring-server-side-rest-call/"
      + "MyRemoteData/" + System.currentTimeMillis();
    
    MyRemoteData mrd = restTemplate.getForObject(
      remote, MyRemoteData.class);
    
    return new MyData(System.currentTimeMillis(), mrd.getData());
    
  }

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    @Autowired
    protected DataSource testDataSource;


    protected RestTemplate anonymousRestTemplate() {
        return new RestTemplate();
    }

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        }
        add(selfRegFrag);
    }


    private String[] authenticate(final String userId, final String password) {
        final RestTemplate restTemplate = SyncopeSession.get().getRestTemplate();


        // 1. Set provided credentials to check
        PreemptiveAuthHttpRequestFactory requestFactory =
                ((PreemptiveAuthHttpRequestFactory) restTemplate.getRequestFactory());


        ((DefaultHttpClient) requestFactory.getHttpClient()).getCredentialsProvider().setCredentials(
                requestFactory.getAuthScope(), new UsernamePasswordCredentials(userId, password));


        // 2. Search authorizations for user specified by credentials
        return restTemplate.getForObject(baseURL + "auth/entitlements.json", String[].class);
    }

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    }


    private boolean isSelfRegistrationAllowed() {
        Boolean result = null;
        try {
            final RestTemplate restTemplate = SyncopeSession.get().getRestTemplate();
            result = restTemplate.getForObject(baseURL + "user/request/create/allowed", Boolean.class);
        } catch (HttpClientErrorException e) {
            LOG.error("While seeking if self registration is allowed", e);
        }


        return result == null

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                ? false
                : result.booleanValue();
    }


    private String getCoreVersion() {
        final RestTemplate restTemplate = SyncopeSession.get().getRestTemplate();


        PreemptiveAuthHttpRequestFactory requestFactory = ((PreemptiveAuthHttpRequestFactory) restTemplate.
                getRequestFactory());


        String version = "";
        try {
            HttpGet get = new HttpGet(baseURL + "../version.jsp");

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        super(baseUrl, restTemplate);
    }


    @Override
    public Set<EntitlementTO> getAllEntitlements() {
        Set<String> entitlements = new HashSet<String>(Arrays.asList(new RestTemplate().getForObject(
                baseUrl + "auth/allentitlements.json", String[].class)));
        return CollectionWrapper.wrap(entitlements);
    }

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