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HandlerGetProfilePicture.java
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HandlerGetProfilePicture.java
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/**
* "First, solve the problem. Then, write the code. -John Johnson"
* "Or use Vangav M"
* www.vangav.com
* */
/**
* MIT License
*
* Copyright (c) 2016 Vangav
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
* */
/**
* Community
* Facebook Group: Vangav Open Source - Backend
* fb.com/groups/575834775932682/
* Facebook Page: Vangav
* fb.com/vangav.f
*
* Third party communities for Vangav Backend
* - play framework
* - cassandra
* - datastax
*
* Tag your question online (e.g.: stack overflow, etc ...) with
* #vangav_backend
* to easier find questions/answers online
* */
package com.vangav.vos_instagram.controllers.get_profile_picture;
import java.nio.ByteBuffer;
import java.util.UUID;
import com.datastax.driver.core.ResultSet;
import com.vangav.backend.content.formatting.EncodingInl;
import com.vangav.backend.exceptions.BadRequestException;
import com.vangav.backend.exceptions.VangavException.ExceptionClass;
import com.vangav.backend.play_framework.request.Request;
import com.vangav.backend.play_framework.request.RequestJsonBody;
import com.vangav.backend.play_framework.request.response.ResponseBody;
import com.vangav.vos_instagram.cassandra_keyspaces.ig_app_data.UsersInfo;
import com.vangav.vos_instagram.cassandra_keyspaces.ig_blobs.ProfilePicturesBlobs;
import com.vangav.vos_instagram.common.Authenticator;
import com.vangav.vos_instagram.common.cassandra.CheckersInl;
import com.vangav.vos_instagram.controllers.CommonPlayHandler;
/**
* GENERATED using ControllersGeneratorMain.java
*/
/**
* HandlerGetProfilePicture
* handles request-to-response processing
* also handles after response processing (if any)
* */
public class HandlerGetProfilePicture extends CommonPlayHandler {
private static final String kName = "GetProfilePicture";
@Override
protected String getName () {
return kName;
}
@Override
protected RequestJsonBody getRequestJson () {
return new RequestGetProfilePicture();
}
@Override
protected ResponseBody getResponseBody () {
return new ResponseGetProfilePicture();
}
@Override
protected Authenticator getRequestAuthenticator (
final RequestJsonBody requestJsonBody) throws Exception {
return
new Authenticator(
((RequestGetProfilePicture)requestJsonBody).device_token,
((RequestGetProfilePicture)requestJsonBody).user_id,
((RequestGetProfilePicture)requestJsonBody).access_token);
}
@Override
protected void processRequest (final Request request) throws Exception {
// use the following request Object to process the request and set
// the response to be returned
RequestGetProfilePicture requestGetProfilePicture =
(RequestGetProfilePicture)request.getRequestJsonBody();
// set/check get_profile_picture_user_id
UUID getProfilePictureUserId =
UUID.fromString(requestGetProfilePicture.get_profile_picture_user_id);
if (requestGetProfilePicture.get_profile_picture_user_id.compareTo(
requestGetProfilePicture.user_id) != 0) {
if (CheckersInl.userIdExists(getProfilePictureUserId) == false) {
throw new BadRequestException(
414,
1,
"User with user_id ["
+ requestGetProfilePicture.get_profile_picture_user_id
+ "] doesn't exist, request issued by user_id ["
+ requestGetProfilePicture.user_id
+ "] from device_token ["
+ requestGetProfilePicture.device_token
+ "]",
ExceptionClass.INVALID);
}
}
// get user's profile_picture_id
ResultSet resultSet =
UsersInfo.i().executeSyncSelectProfilePictureId(getProfilePictureUserId);
// no profile picture for this user?
if (resultSet.isExhausted() == true) {
// set empty response
((ResponseGetProfilePicture)request.getResponseBody() ).set(
requestGetProfilePicture.request_tracking_id,
"");
return;
}
// extract profile_picture_id from result
UUID profilePictureId =
resultSet.one().getUUID(UsersInfo.kProfilePictureIdColumnName);
// get profile picture
resultSet =
ProfilePicturesBlobs.i().executeSyncSelect(profilePictureId);
// extract profile picture
ByteBuffer profilePictureByteBuffer =
resultSet.one().getBytes(ProfilePicturesBlobs.kPictureColumnName);
// decode profile picture
String profilePictureString =
EncodingInl.decodeStringFromByteBuffer(profilePictureByteBuffer);
// set response
((ResponseGetProfilePicture)request.getResponseBody() ).set(
requestGetProfilePicture.request_tracking_id,
profilePictureString);
}
}