UserMessageEntityDAOImpl.java

/*
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package com.microsoftopentechnologies.azchat.web.dao;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.microsoft.azure.storage.table.CloudTable;
import com.microsoft.azure.storage.table.TableOperation;
import com.microsoft.azure.storage.table.TableQuery;
import com.microsoft.azure.storage.table.TableQuery.Operators;
import com.microsoft.azure.storage.table.TableQuery.QueryComparisons;
import com.microsoftopentechnologies.azchat.web.common.utils.AzureChatConstants;
import com.microsoftopentechnologies.azchat.web.common.utils.AzureChatStorageUtils;
import com.microsoftopentechnologies.azchat.web.dao.data.entities.storage.FriendRequestEntity;
import com.microsoftopentechnologies.azchat.web.dao.data.entities.storage.UserMessageEntity;

/**
 * This class provides operations to add, get messages to/from azure table.
 * 
 * @author Rupesh_Shirude
 *
 */
@Service("userMessageEntityDAO")
public class UserMessageEntityDAOImpl implements UserMessageEntityDAO {
	private static final Logger LOGGER = LogManager
			.getLogger(FriendRequestDAOImpl.class);

	@Autowired
	private FriendRequestDAO friendRequestDAO;

	@Autowired
	private ProfileImageRequestDAO profileImageRequestDAO;

	@Autowired
	private MessageCommentsDAO messageCommentsDAO;

	@Autowired
	private MessageLikeEntityDAO messageLikeEntityDAO;

	/**
	 * This method This method executes query on azure user message storage to
	 * add user message.
	 * 
	 * @param userMessageEntity
	 * @return
	 * @throws Exception
	 * @author Rupesh_Shirude
	 */
	@Override
	public UserMessageEntity addUserMessageEntity(
			UserMessageEntity userMessageEntity) throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][addUserMessageEntity] start ");
		AzureChatStorageUtils.insertOrReplaceEntity(
				AzureChatConstants.TABLE_NAME_USER_MESSAGE, userMessageEntity);
		LOGGER.info("[UserMessageEntityDAOImpl][addUserMessageEntity] end ");
		return userMessageEntity;
	}

	/**
	 * This method executes query on azure user message storage to get user
	 * message by user id.
	 * 
	 * @param userId
	 * @return
	 * @throws Exception
	 */
	@Override
	public List<UserMessageEntity> getUserMessageEntities(String userId)
			throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][getUserMessageEntities] start ");
		List<UserMessageEntity> userMessageEntities = new ArrayList<UserMessageEntity>();
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				userId);
		TableQuery<UserMessageEntity> friendListQuery = TableQuery.from(
				UserMessageEntity.class).where(partitionFilter);
		for (UserMessageEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_USER_MESSAGE)
				.execute(friendListQuery)) {
			userMessageEntities.add(entity);
		}
		Collections.sort(userMessageEntities);
		LOGGER.info("[UserMessageEntityDAOImpl][getUserMessageEntities] end ");
		return userMessageEntities;
	}

	/**
	 * This method executes query on azure user message storage to get user
	 * messages by user id & message id.
	 * 
	 * @param userId
	 * @param messageId
	 * @return
	 * @throws Exception
	 */
	@Override
	public UserMessageEntity getUserMessageEntities(String userId,
			String messageId) throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][getUserMessageEntities] start ");
		List<UserMessageEntity> userMessageEntities = new ArrayList<UserMessageEntity>();
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				userId);
		String rowFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.ROW_KEY, QueryComparisons.EQUAL, messageId);
		String combinedFilter = TableQuery.combineFilters(partitionFilter,
				Operators.AND, rowFilter);
		TableQuery<UserMessageEntity> friendListQuery = TableQuery.from(
				UserMessageEntity.class).where(combinedFilter);
		for (UserMessageEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_USER_MESSAGE)
				.execute(friendListQuery)) {
			userMessageEntities.add(entity);
		}
		LOGGER.info("[UserMessageEntityDAOImpl][getUserMessageEntities] end ");
		return userMessageEntities.get(0);
	}

	/**
	 * This method executes query on azure user message storage to get user
	 * message by user id.
	 * 
	 * @param userId
	 * @return userMessageEntities
	 * @throws Exception
	 */
	@Override
	public List<UserMessageEntity> getUserAndFriendsMessages(String userId)
			throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][getUserAndFriendsMessages] start ");
		List<UserMessageEntity> userMessageEntities = new ArrayList<UserMessageEntity>();
		userMessageEntities = getUserMessageEntities(userId);
		List<FriendRequestEntity> friendRequestEntities = friendRequestDAO
				.getFriendListForUser(userId);
		for (FriendRequestEntity friendRequestEntity : friendRequestEntities) {
			userMessageEntities
					.addAll(getUserMessageEntities(friendRequestEntity
							.getFriendID()));
		}
		Collections.sort(userMessageEntities);
		LOGGER.info("[UserMessageEntityDAOImpl][getUserAndFriendsMessages] end ");
		return userMessageEntities;
	}

	/**
	 * This method executes query on azure user message storage to get all user
	 * message ID's.
	 * 
	 * @param userId
	 * @return strings
	 * @throws Exception
	 */
	@Override
	public Set<String> getAllUserMessageIds() throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][getAllUserMessageIds] start ");
		Set<String> strings = new HashSet<String>();
		TableQuery<UserMessageEntity> userMessages = TableQuery
				.from(UserMessageEntity.class);
		for (UserMessageEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_USER_MESSAGE)
				.execute(userMessages)) {
			strings.add(entity.getMessageID());
		}
		LOGGER.debug("Message Count : " + strings != null ? strings.size()
				: null);
		LOGGER.info("[UserMessageEntityDAOImpl][getAllUserMessageIds] start ");
		return strings;
	}

	/**
	 * This method executes query on azure user message storage to delete user
	 * message by input ID's.
	 * 
	 * @param userId
	 * @return
	 * @throws Exception
	 */
	@Override
	public void deleteMessageById(String messageId) throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][deleteMessageById] start ");
		UserMessageEntity messageEntity = getMessageById(messageId);
		if (messageEntity != null) {
			int startIndex = messageEntity.getMediaURL().indexOf(
					AzureChatConstants.PHOTO_UPLOAD_CONTAINER + "/")
					+ AzureChatConstants.PHOTO_UPLOAD_CONTAINER.length() + 1;
			String fileName = messageEntity.getMediaURL().substring(startIndex);
			profileImageRequestDAO.deletePhoto(fileName);
			LOGGER.debug("Photo for message id : " + messageId + " is deleted.");
			messageCommentsDAO.deleteAllMessageComments(messageId);
			LOGGER.debug("Comments for message id : " + messageId
					+ " are deleted.");
			messageLikeEntityDAO.deleteMessageLikeByMessageId(messageId);
			LOGGER.debug("Likes for message id : " + messageId
					+ " are deleted.");
			CloudTable cloudTable = AzureChatStorageUtils
					.getTableReference(AzureChatConstants.TABLE_NAME_USER_MESSAGE);
			String rowFilter = TableQuery.generateFilterCondition(
					AzureChatConstants.ROW_KEY, QueryComparisons.EQUAL,
					messageId);
			TableQuery<UserMessageEntity> userMessages = TableQuery.from(
					UserMessageEntity.class).where(rowFilter);
			for (UserMessageEntity entity : AzureChatStorageUtils
					.getTableReference(
							AzureChatConstants.TABLE_NAME_USER_MESSAGE)
					.execute(userMessages)) {
				TableOperation deleteOperation = TableOperation.delete(entity);
				cloudTable.execute(deleteOperation);
			}
		}
		LOGGER.info("[UserMessageEntityDAOImpl][deleteMessageById] end");
	}

	/**
	 * This method executes query on azure user message storage to get user
	 * message by id.
	 * 
	 * @param messageId
	 * @return
	 * @throws Exception
	 * @author rupesh_shirude
	 */
	@Override
	public UserMessageEntity getMessageById(String messageId) throws Exception {
		LOGGER.info("[UserMessageEntityDAOImpl][getUserMessageEntities] start ");
		List<UserMessageEntity> userMessageEntities = new ArrayList<UserMessageEntity>();
		UserMessageEntity userMessage = null;
		String rowFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.ROW_KEY, QueryComparisons.EQUAL, messageId);
		TableQuery<UserMessageEntity> friendListQuery = TableQuery.from(
				UserMessageEntity.class).where(rowFilter);
		for (UserMessageEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_USER_MESSAGE)
				.execute(friendListQuery)) {
			userMessageEntities.add(entity);
		}
		if (userMessageEntities != null && userMessageEntities.size() > 0) {
			LOGGER.debug("User Message Entities Size : "
					+ userMessageEntities.size());
			userMessage = userMessageEntities.get(0);
		}
		LOGGER.info("[UserMessageEntityDAOImpl][getAllUserMessageIds] end ");
		return userMessage;

	}
}