MessageLikeEntityDAOImpl.java

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package com.microsoftopentechnologies.azchat.web.dao;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
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.MessageLikesEntity;

/**
 * This implementation class provides the operations for add,remove like status
 * for the message by adding the records into the azure storage.
 * 
 * @author Rupesh_Shirude
 *
 */
@Service("messageLikeEntityDAO")
public class MessageLikeEntityDAOImpl implements MessageLikeEntityDAO {
	private static final Logger LOGGER = LogManager
			.getLogger(FriendRequestDAOImpl.class);

	/**
	 * This method is used to add the likes by message id by adding the record
	 * to the azure storage.
	 * 
	 * @param messageId
	 * @return
	 * @throws Exception
	 */
	@Override
	public MessageLikesEntity addMessageLikesEntity(
			MessageLikesEntity messageLikesEntity) throws Exception {
		LOGGER.info("[MessageLikeEntityDAOImpl][addMessageLikesEntity] start ");
		AzureChatStorageUtils
				.insertOrReplaceEntity(
						AzureChatConstants.TABLE_NAME_MESSAGE_LIKES,
						messageLikesEntity);
		LOGGER.info("[MessageLikeEntityDAOImpl][addMessageLikesEntity] end ");
		return messageLikesEntity;
	}

	/**
	 * This method is used to get the likes by message id by fetching azure
	 * storage records.
	 * 
	 * @param messageId
	 * @return List of MessageLikeEntity
	 * @throws Exception
	 */
	@Override
	public Map<String, MessageLikesEntity> getMessageLikeEntity(String messageId)
			throws Exception {
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity] start ");
		Map<String, MessageLikesEntity> messageLikesEntities = new HashMap<String, MessageLikesEntity>();
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				messageId);
		TableQuery<MessageLikesEntity> query = TableQuery.from(
				MessageLikesEntity.class).where(partitionFilter);
		for (MessageLikesEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_MESSAGE_LIKES)
				.execute(query)) {
			String mapKey = entity.getFriendID() + entity.getMessageID();
			messageLikesEntities.put(mapKey, entity);
		}
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity] end ");
		return messageLikesEntities;
	}

	/**
	 * This method is used to fetch the like status from azure storage by
	 * message id & friend id.
	 * 
	 * @param messageId
	 * @param friendId
	 * @return
	 * @throws Exception
	 */
	@Override
	public MessageLikesEntity getMessageLikeEntity(String messageId,
			String friendId) throws Exception {
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity] start ");
		List<MessageLikesEntity> messageLikesEntities = new ArrayList<MessageLikesEntity>();
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				messageId);
		String rowFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.ROW_KEY, QueryComparisons.EQUAL, friendId);
		String combinedFilter = TableQuery.combineFilters(partitionFilter,
				Operators.AND, rowFilter);
		TableQuery<MessageLikesEntity> friendListQuery = TableQuery.from(
				MessageLikesEntity.class).where(combinedFilter);
		for (MessageLikesEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_MESSAGE_LIKES)
				.execute(friendListQuery)) {
			messageLikesEntities.add(entity);
		}
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity] end ");
		return messageLikesEntities.get(0);
	}

	/**
	 * This method is used to fetch the likes status count by message id.
	 * 
	 * @param messageId
	 * @return
	 * @throws Exception
	 */
	@Override
	public Integer getMessageLikeEntityCount(String messageId) throws Exception {
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity]         start ");
		int count = 0;
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				messageId);
		TableQuery<MessageLikesEntity> query = TableQuery.from(
				MessageLikesEntity.class).where(partitionFilter);
		for (@SuppressWarnings("unused")
		MessageLikesEntity entity : AzureChatStorageUtils.getTableReference(
				AzureChatConstants.TABLE_NAME_MESSAGE_LIKES).execute(query)) {
			count++;
		}
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntity]         end ");
		return count;
	}

	/**
	 * This method is used to fetch like status by message id & friend id and
	 * calculate the count.
	 * 
	 * @param messageId
	 * @param friendId
	 * @return
	 * @throws Exception
	 */
	@Override
	public Integer getMessageLikeEntityCount(String messageId, String friendId)
			throws Exception {
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntityCount]         start ");
		int count = 0;
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				messageId);
		String rowFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.ROW_KEY, QueryComparisons.EQUAL, friendId);
		String combinedFilter = TableQuery.combineFilters(partitionFilter,
				Operators.AND, rowFilter);
		TableQuery<MessageLikesEntity> friendListQuery = TableQuery.from(
				MessageLikesEntity.class).where(combinedFilter);
		for (@SuppressWarnings("unused")
		MessageLikesEntity entity : AzureChatStorageUtils.getTableReference(
				AzureChatConstants.TABLE_NAME_MESSAGE_LIKES).execute(
				friendListQuery)) {
			count++;
		}
		LOGGER.info("[MessageLikeEntityDAOImpl][getMessageLikeEntityCount]         end ");
		return count;
	}

	/**
	 * This method is used to delete like by message id & friend id by removing
	 * the record from the azure storage.
	 * 
	 * @param messageId
	 * @param friendId
	 * @return
	 * @throws Exception
	 */
	@Override
	public void deleteMessageLikeEntity(MessageLikesEntity messageLikesEntity)
			throws Exception {
		LOGGER.info("[MessageCommentsDAOImpl][deleteMessageLikeEntity] start ");
		CloudTable cloudTable = AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_MESSAGE_LIKES);
		TableOperation tableOperation = TableOperation.retrieve(
				messageLikesEntity.getMessageID(),
				messageLikesEntity.getFriendID(), MessageLikesEntity.class);
		MessageLikesEntity messageLikesEntity1 = cloudTable.execute(
				tableOperation).getResultAsType();
		TableOperation deleteOperation = TableOperation
				.delete(messageLikesEntity1);
		cloudTable.execute(deleteOperation);
		LOGGER.info("[MessageCommentsDAOImpl][deleteMessageLikeEntity] end ");
	}

	/**
	 * This method is used to delete like by message id by deleting the record
	 * from the azure storage.
	 * 
	 * @param messageId
	 * @param friendId
	 * @return
	 * @throws Exception
	 */
	@Override
	public void deleteMessageLikeByMessageId(String messageId) throws Exception {
		LOGGER.info("[MessageCommentsDAOImpl][deleteMessageLikeByMessageId] start ");
		CloudTable cloudTable = AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_MESSAGE_LIKES);
		String partitionFilter = TableQuery.generateFilterCondition(
				AzureChatConstants.PARTITION_KEY, QueryComparisons.EQUAL,
				messageId);
		TableQuery<MessageLikesEntity> likeListQuery = TableQuery.from(
				MessageLikesEntity.class).where(partitionFilter);
		for (MessageLikesEntity entity : AzureChatStorageUtils
				.getTableReference(AzureChatConstants.TABLE_NAME_MESSAGE_LIKES)
				.execute(likeListQuery)) {
			TableOperation deleteOperation = TableOperation.delete(entity);
			cloudTable.execute(deleteOperation);
		}
		LOGGER.info("[MessageCommentsDAOImpl][deleteMessageLikeByMessageId] end ");
	}
}