Java Code Examples for org.apache.hc.core5.http.io.entity.EntityUtils#toString()

public static String retrieveHttpAsString(String url) throws HttpException, IOException {
    RequestConfig requestConfig = RequestConfig.custom()
            .setResponseTimeout(5000, TimeUnit.MILLISECONDS)
            .setConnectTimeout(5000, TimeUnit.MILLISECONDS)
            .setConnectionRequestTimeout(5000, TimeUnit.MILLISECONDS)
            .setCookieSpec(StandardCookieSpec.IGNORE)
            .build();
    CloseableHttpClient httpclient = HttpClients.custom()
            .setDefaultRequestConfig(requestConfig)
            .setUserAgent(_userAgent)
            .build();
    HttpGet httpGet = new HttpGet(url);
    httpGet.setConfig(requestConfig);
    CloseableHttpResponse response = null;
    try {
        response = httpclient.execute(httpGet);
        final int statusCode = response.getCode();
        if (statusCode != HttpStatus.SC_OK) {
            throw new HttpException("Error " + statusCode + " for URL " + url);
        }
        HttpEntity entity = response.getEntity();
        String data = EntityUtils.toString(entity);
        EntityUtils.consume(entity);
        return data;
    } catch (IOException e) {
        throw new IOException("Error for URL " + url, e);
    } finally {
        if (response != null) {
            response.close();
        }
        httpclient.close();
    }
}
 

public static String retrieveHttpAsString(String url) throws HttpException, IOException {
    RequestConfig requestConfig = RequestConfig.custom()
            .setResponseTimeout(5000, TimeUnit.MILLISECONDS)
            .setConnectTimeout(5000, TimeUnit.MILLISECONDS)
            .setConnectionRequestTimeout(5000, TimeUnit.MILLISECONDS)
            .setCookieSpec(StandardCookieSpec.IGNORE)
            .build();
    CloseableHttpClient httpclient = HttpClients.custom()
            .setDefaultRequestConfig(requestConfig)
            .setUserAgent(_userAgent)
            .build();
    HttpGet httpGet = new HttpGet(url);
    httpGet.setConfig(requestConfig);
    CloseableHttpResponse response = null;
    try {
        response = httpclient.execute(httpGet);
        final int statusCode = response.getCode();
        if (statusCode != HttpStatus.SC_OK) {
            throw new HttpException("Error " + statusCode + " for URL " + url);
        }
        HttpEntity entity = response.getEntity();
        String data = EntityUtils.toString(entity);
        EntityUtils.consume(entity);
        return data;
    } catch (IOException e) {
        throw new IOException("Error for URL " + url, e);
    } finally {
        if (response != null) {
            response.close();
        }
        httpclient.close();
    }
}
 

private boolean manageLockForWorkspace(long workspaceId, boolean lock) throws StructurizrClientException {
    if (workspaceId <= 0) {
        throw new IllegalArgumentException("The workspace ID must be a positive integer.");
    }

    try (CloseableHttpClient httpClient = HttpClients.createSystem()) {
        HttpUriRequestBase httpRequest;

        if (lock) {
            log.info("Locking workspace with ID " + workspaceId);
            httpRequest = new HttpPut(url + WORKSPACE_PATH + workspaceId + "/lock?user=" + getUser() + "&agent=" + agent);
        } else {
            log.info("Unlocking workspace with ID " + workspaceId);
            httpRequest = new HttpDelete(url + WORKSPACE_PATH + workspaceId + "/lock?user=" + getUser() + "&agent=" + agent);
        }

        addHeaders(httpRequest, "", "");
        debugRequest(httpRequest, null);

        try (CloseableHttpResponse response = httpClient.execute(httpRequest)) {
            debugResponse(response);

            String responseText = EntityUtils.toString(response.getEntity());
            ApiResponse apiResponse = ApiResponse.parse(responseText);
            log.info(responseText);

            if (response.getCode() == HttpStatus.SC_OK) {
                return apiResponse.isSuccess();
            } else {
                throw new StructurizrClientException(apiResponse.getMessage());
            }
        }
    } catch (Exception e) {
        log.error(e);
        throw new StructurizrClientException(e);
    }
}
 

/**
 * Gets the workspace with the given ID.
 *
 * @param workspaceId the workspace ID
 * @return a Workspace instance
 * @throws StructurizrClientException   if there are problems related to the network, authorization, JSON deserialization, etc
 */
public Workspace getWorkspace(long workspaceId) throws StructurizrClientException {
    if (workspaceId <= 0) {
        throw new IllegalArgumentException("The workspace ID must be a positive integer.");
    }

    try (CloseableHttpClient httpClient = HttpClients.createSystem()) {
        log.info("Getting workspace with ID " + workspaceId);
        HttpGet httpGet = new HttpGet(url + WORKSPACE_PATH + workspaceId);
        addHeaders(httpGet, "", "");
        debugRequest(httpGet, null);

        try (CloseableHttpResponse response = httpClient.execute(httpGet)) {
            debugResponse(response);

            String json = EntityUtils.toString(response.getEntity());
            if (response.getCode() == HttpStatus.SC_OK) {
                archiveWorkspace(workspaceId, json);

                if (encryptionStrategy == null) {
                    return new JsonReader().read(new StringReader(json));
                } else {
                    EncryptedWorkspace encryptedWorkspace = new EncryptedJsonReader().read(new StringReader(json));

                    if (encryptedWorkspace.getEncryptionStrategy() != null) {
                        encryptedWorkspace.getEncryptionStrategy().setPassphrase(encryptionStrategy.getPassphrase());
                        return encryptedWorkspace.getWorkspace();
                    } else {
                        // this workspace isn't encrypted, even though the client has an encryption strategy set
                        return new JsonReader().read(new StringReader(json));
                    }
                }
            } else {
                ApiResponse apiResponse = ApiResponse.parse(json);
                throw new StructurizrClientException(apiResponse.getMessage());
            }
        }
    } catch (Exception e) {
        log.error(e);
        throw new StructurizrClientException(e);
    }
}
 

private String getResponseBody(CloseableHttpResponse httpResponse) throws
  IOException,
  SpotifyWebApiException,
  ParseException {

  final String responseBody = httpResponse.getEntity() != null
    ? EntityUtils.toString(httpResponse.getEntity(), "UTF-8")
    : null;
  String errorMessage = httpResponse.getReasonPhrase();

  if (responseBody != null && !responseBody.equals("")) {
    try {
      final JsonElement jsonElement = JsonParser.parseString(responseBody);

      if (jsonElement.isJsonObject()) {
        final JsonObject jsonObject = JsonParser.parseString(responseBody).getAsJsonObject();

        if (jsonObject.has("error")) {
          if (jsonObject.has("error_description")) {
            errorMessage = jsonObject.get("error_description").getAsString();
          } else if (jsonObject.get("error").isJsonObject() && jsonObject.getAsJsonObject("error").has("message")) {
            errorMessage = jsonObject.getAsJsonObject("error").get("message").getAsString();
          }
        }
      }
    } catch (JsonSyntaxException e) {
      // Not necessary
    }
  }

  switch (httpResponse.getCode()) {
    case HttpStatus.SC_BAD_REQUEST:
      throw new BadRequestException(errorMessage);
    case HttpStatus.SC_UNAUTHORIZED:
      throw new UnauthorizedException(errorMessage);
    case HttpStatus.SC_FORBIDDEN:
      throw new ForbiddenException(errorMessage);
    case HttpStatus.SC_NOT_FOUND:
      throw new NotFoundException(errorMessage);
    case 429: // TOO_MANY_REQUESTS (additional status code, RFC 6585)
      // Sets "Retry-After" header as described at https://beta.developer.spotify.com/documentation/web-api/#rate-limiting
      Header header = httpResponse.getFirstHeader("Retry-After");

      if (header != null) {
        throw new TooManyRequestsException(errorMessage, Integer.parseInt(header.getValue()));
      } else {
        throw new TooManyRequestsException(errorMessage);
      }
    case HttpStatus.SC_INTERNAL_SERVER_ERROR:
      throw new InternalServerErrorException(errorMessage);
    case HttpStatus.SC_BAD_GATEWAY:
      throw new BadGatewayException(errorMessage);
    case HttpStatus.SC_SERVICE_UNAVAILABLE:
      throw new ServiceUnavailableException(errorMessage);
    default:
      return responseBody;
  }
}