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Adding Implementation of Comment Manager

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merge-requests/7/head
nishadi 7 years ago
parent 6b6a5bdbb1
commit 819034f97d
1 changed files with 266 additions and 2 deletions
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components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/impl/CommentsManagerImpl.java
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@ -17,10 +17,274 @@
*/
package org.wso2.carbon.device.application.mgt.core.impl;
import org.wso2.carbon.device.application.mgt.common.services.CommentsManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.context.PrivilegedCarbonContext;
import org.wso2.carbon.device.application.mgt.common.Comment;
import org.wso2.carbon.device.application.mgt.common.PaginationRequest;
import org.wso2.carbon.device.application.mgt.common.PaginationResult;
import org.wso2.carbon.device.application.mgt.common.exception.ApplicationManagementException;
import org.wso2.carbon.device.application.mgt.common.exception.CommentManagementException;
import org.wso2.carbon.device.application.mgt.common.exception.DBConnectionException;
import org.wso2.carbon.device.application.mgt.common.exception.TransactionManagementException;
import org.wso2.carbon.device.application.mgt.common.services.*;
import org.wso2.carbon.device.application.mgt.core.dao.CommentDAO;
import org.wso2.carbon.device.application.mgt.core.dao.common.ApplicationManagementDAOFactory;
import org.wso2.carbon.device.application.mgt.core.dao.common.Util;
import org.wso2.carbon.device.application.mgt.core.exception.ApplicationManagementDAOException;
import org.wso2.carbon.device.application.mgt.core.exception.NotFoundException;
import org.wso2.carbon.device.application.mgt.core.util.ConnectionManagerUtil;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.time.Instant;
import java.util.List;
/**
* This class is the default implementation for the Managing the comments.
*/
@SuppressWarnings( "deprecation" )
public class CommentsManagerImpl implements CommentsManager {
}
private static final Log log = LogFactory.getLog(CommentsManagerImpl.class);
private CommentDAO commentDAO;
public CommentsManagerImpl() {
initDataAccessObjects();
}
private void initDataAccessObjects() {
this.commentDAO= ApplicationManagementDAOFactory.getCommentDAO();
}
@Override
public Comment addComment(Comment comment,String uuid,int tenantId) throws CommentManagementException {
if (log.isDebugEnabled()) {
log.debug("Request for comment is received for uuid" +uuid);
}
comment.setCreatedAt(Timestamp.from(Instant.now()));
try {
ConnectionManagerUtil.beginDBTransaction();
ApplicationManagementDAOFactory.getCommentDAO().addComment(tenantId,comment,
comment.getCreatedBy(),comment.getParent(),uuid);
ConnectionManagerUtil.commitDBTransaction();
return comment;
} catch (Exception e) {
log.error("Exception occurs.", e);
ConnectionManagerUtil.rollbackDBTransaction();
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return comment;
}
/**
* To validate the pre-request of the comment
*
* @param apAppCommentId ID of the comment.
* @param comment comment needed to be validate.
* @return Application related with the UUID.
*
*
*/
public Boolean validateComment(int apAppCommentId,String comment) throws CommentManagementException{
if (apAppCommentId <= 0) {
throw new CommentManagementException("Comment ID is null or negative. Comment id is a required parameter to get the " +
"relevant comment.");
}
if(comment==null){
throw new NullPointerException("No comment is entered.");
}
try {
throw new NotFoundException("Comment with comment id "+apAppCommentId+" does not exit");
} catch (NotFoundException e) {
log.error("Not Found Exception occurs.", e);
}
return true;
}
@Override
public List<Comment> getAllComments(PaginationRequest request,String uuid) throws CommentManagementException,
SQLException {
PaginationResult paginationResult = new PaginationResult();
List<Comment> comments;
request = Util.validateCommentListPageSize(request);
if (log.isDebugEnabled()) {
log.debug("get all comments of the application release"+uuid);
}
try {
ConnectionManagerUtil.openDBConnection();
comments=commentDAO.getAllComments(uuid,request);//count ,pagination request
int count=commentDAO.getCommentCount(request,uuid);
paginationResult.setData(comments);
paginationResult.setRecordsFiltered(count);
paginationResult.setRecordsTotal(count);
return comments;
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return null;
}
@Override
public Comment getComment(int apAppCommentId) throws CommentManagementException {
PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
Comment comment=null;
if (log.isDebugEnabled()) {
log.debug("Comment retrieval request is received for the comment id " + apAppCommentId );
}
try {
ConnectionManagerUtil.openDBConnection();
comment=ApplicationManagementDAOFactory.getCommentDAO().getComment(apAppCommentId);
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} catch (SQLException e) {
log.error("SQL Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return comment;
}
@Override
public void deleteComment(int apAppCommentId) throws CommentManagementException {
Comment comment;
comment= getComment(apAppCommentId);
if (comment == null) {
throw new CommentManagementException(
"Cannot delete a non-existing comment for the application with comment id" + apAppCommentId);
}
try {
ConnectionManagerUtil.beginDBTransaction();
ApplicationManagementDAOFactory.getCommentDAO().deleteComment(apAppCommentId);
ConnectionManagerUtil.commitDBTransaction();
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} catch (SQLException e) {
log.error("SQL Exception occurs.", e);
} catch (TransactionManagementException e) {
log.error("Transaction Management Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
}
@Override
public Comment updateComment(Comment comment,int apAppCommentId) throws CommentManagementException, SQLException,
DBConnectionException {
PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
validateComment(apAppCommentId,comment.getComment());
if (log.isDebugEnabled()) {
log.debug("Comment retrieval request is received for the comment id " +apAppCommentId);
}
comment.setModifiedAt(Timestamp.from(Instant.now()));
try {
ConnectionManagerUtil.openDBConnection();
ApplicationManagementDAOFactory.getCommentDAO().getComment(apAppCommentId);
return ApplicationManagementDAOFactory.getCommentDAO().updateComment(apAppCommentId,
comment.getComment(),comment.getModifiedBy(),comment.getModifiedAt());
} catch (SQLException e) {
log.error("SQL Exception occurs.", e);
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return ApplicationManagementDAOFactory.getCommentDAO().getComment(apAppCommentId);
}
public int getRatedUser(String uuid){
int ratedUsers=0;
if (log.isDebugEnabled()) {
log.debug("Get the rated users for the application release number"+uuid);
}
try {
ConnectionManagerUtil.openDBConnection();
ratedUsers =ApplicationManagementDAOFactory.getCommentDAO().getRatedUser(uuid);
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} catch (ApplicationManagementDAOException e) {
log.error("Application Management Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return ratedUsers;
}
@Override
public int getStars(String uuid) throws SQLException {
int stars=0;
if (log.isDebugEnabled()) {
log.debug("Get the average of rated stars for the application "+uuid);
}
try {
ConnectionManagerUtil.openDBConnection();
stars= ApplicationManagementDAOFactory.getCommentDAO().getStars(uuid);
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} catch (ApplicationManagementDAOException e) {
log.error("Application Management Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return stars;
}
@Override
public int updateStars(int stars , String uuid) throws ApplicationManagementException {
if (log.isDebugEnabled()) {
log.debug("Stars are received for the application " + uuid);
}
int newStars=0;
try {
ConnectionManagerUtil.beginDBTransaction();
int ratedUsers = ApplicationManagementDAOFactory.getCommentDAO().getRatedUser(uuid);
int oldStars = ApplicationManagementDAOFactory.getCommentDAO().getStars(uuid);
if(ratedUsers==0){
newStars=ApplicationManagementDAOFactory.getCommentDAO().updateStars(stars,uuid);
return newStars;
}else {
int avgStars = ((oldStars*ratedUsers)+stars) / (ratedUsers+1);
newStars = ApplicationManagementDAOFactory.getCommentDAO().updateStars(avgStars, uuid);
ConnectionManagerUtil.commitDBTransaction();
return newStars;
}
} catch (ApplicationManagementDAOException e) {
ConnectionManagerUtil.rollbackDBTransaction();
log.error("Application Management Exception occurs.", e);
} catch (DBConnectionException e) {
log.error("DB Connection Exception occurs.", e);
} finally {
ConnectionManagerUtil.closeDBConnection();
}
return newStars;
}
}
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