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Java DatastoreService.beginTransaction方法代碼示例

本文整理匯總了Java中com.google.appengine.api.datastore.DatastoreService.beginTransaction方法的典型用法代碼示例。如果您正苦於以下問題：Java DatastoreService.beginTransaction方法的具體用法？Java DatastoreService.beginTransaction怎麽用？Java DatastoreService.beginTransaction使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.google.appengine.api.datastore.DatastoreService的用法示例。


在下文中一共展示了DatastoreService.beginTransaction方法的14個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: creatingAnEntityInASpecificEntityGroup

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void creatingAnEntityInASpecificEntityGroup() throws Exception {
  String boardName = "my-message-board";

  //CHECKSTYLE.OFF: VariableDeclarationUsageDistance - Increased clarity in sample
  // [START creating_an_entity_in_a_specific_entity_group]
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();

  String messageTitle = "Some Title";
  String messageText = "Some message.";
  Date postDate = new Date();

  Transaction txn = datastore.beginTransaction();

  Key messageBoardKey = KeyFactory.createKey("MessageBoard", boardName);

  Entity message = new Entity("Message", messageBoardKey);
  message.setProperty("message_title", messageTitle);
  message.setProperty("message_text", messageText);
  message.setProperty("post_date", postDate);
  datastore.put(txn, message);

  txn.commit();
  // [END creating_an_entity_in_a_specific_entity_group]
  //CHECKSTYLE.ON: VariableDeclarationUsageDistance
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:27，代碼來源:TransactionsTest.java

示例2: crossGroupTransactions

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void crossGroupTransactions() throws Exception {
  // [START cross-group_XG_transactions_using_the_Java_low-level_API]
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
  TransactionOptions options = TransactionOptions.Builder.withXG(true);
  Transaction txn = datastore.beginTransaction(options);

  Entity a = new Entity("A");
  a.setProperty("a", 22);
  datastore.put(txn, a);

  Entity b = new Entity("B");
  b.setProperty("b", 11);
  datastore.put(txn, b);

  txn.commit();
  // [END cross-group_XG_transactions_using_the_Java_low-level_API]
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:19，代碼來源:TransactionsTest.java

示例3: creatingAnEntityInASpecificEntityGroup

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void creatingAnEntityInASpecificEntityGroup() throws Exception {
  String boardName = "my-message-board";

  // [START creating_an_entity_in_a_specific_entity_group]
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();

  String messageTitle = "Some Title";
  String messageText = "Some message.";
  Date postDate = new Date();

  Key messageBoardKey = KeyFactory.createKey("MessageBoard", boardName);

  Entity message = new Entity("Message", messageBoardKey);
  message.setProperty("message_title", messageTitle);
  message.setProperty("message_text", messageText);
  message.setProperty("post_date", postDate);

  Transaction txn = datastore.beginTransaction();
  datastore.put(txn, message);

  txn.commit();
  // [END creating_an_entity_in_a_specific_entity_group]
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:25，代碼來源:TransactionsTest.java

示例4: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getChangePassword()) {
        Error error = Error.NONE;
        UserBean userBean = (UserBean)req.getAttribute(AuthRequestAttribute.USER.getName());
        String currentPassword = req.getParameter(HtmlVariable.CURRENT_PASSWORD.getName());
        String newPassword = req.getParameter(HtmlVariable.NEW_PASSWORD.getName());

        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        Transaction txn = datastore.beginTransaction();
        User user = UserFactory.getByKey(datastore, txn, userBean.getKey());
        if(user == null)
            error = Error.NON_EXISTENT_USER;
        else if(user.getPassword().compareTo(MiscFunctions.getEncryptedHash(currentPassword, HashAlgorithms.SHA_256)) != 0)
            error = Error.INCORRECT_PASSWORD;
        else
            try {
                user.setPassword(newPassword);
                UserFactory.update(datastore, txn, user);
                txn.commit();
            }
            catch(ConcurrentModificationException e) {
                error = Error.ERROR_IN_CHANGE_PASSWORD;
            }

        if(error != Error.NONE && txn.isActive())
            txn.rollback();

        req.setAttribute(HtmlVariable.ERROR.getName(), error.toString());
        req.getRequestDispatcher("/WEB-INF/auth/change-password.jsp").forward(req, resp);
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:39，代碼來源:ChangePasswordServlet.java

示例5: transactionalTaskEnqueuing

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void transactionalTaskEnqueuing() throws Exception {
  // [START transactional_task_enqueuing]
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
  Queue queue = QueueFactory.getDefaultQueue();
  Transaction txn = datastore.beginTransaction();
  // ...

  queue.add(TaskOptions.Builder.withUrl("/path/to/handler"));

  // ...

  txn.commit();
  // [END transactional_task_enqueuing]
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:16，代碼來源:TransactionsTest.java

示例6: transactionalTaskEnqueuing

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void transactionalTaskEnqueuing() throws Exception {
  // [START transactional_task_enqueuing]
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
  Queue queue = QueueFactory.getDefaultQueue();
  Transaction txn = datastore.beginTransaction();
  // ...

  queue.add(txn, TaskOptions.Builder.withUrl("/path/to/handler"));

  // ...

  txn.commit();
  // [END transactional_task_enqueuing]
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:16，代碼來源:TransactionsTest.java

示例7: doGet

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    Error error = Error.NONE;
    CauseOfDisconnect causeOfDisconnect = CauseOfDisconnect.NONE;
    boolean fromSessionLog = false;

    String sessionId = null;
    Cookie cookies[] = req.getCookies();
    if(cookies != null) for(Cookie cookie : cookies)
        if(cookie.getName().equalsIgnoreCase(Cookies.SESSION_ID.getName())) {
            sessionId = cookie.getValue();
            break;
        }

    if(sessionId == null || sessionId.length() == 0)
        error = Error.NON_EXISTENT_SESSION;
    else {
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
        Session session = SessionFactory.getBySessionId(datastore, txn, sessionId);
        if(session != null) {
            Calendar dateNow = Calendar.getInstance(java.util.TimeZone.getTimeZone(MiscFunctions.UTC_STRING));
            long sessionTimeout = session.getSessionTimeout();
            if(sessionTimeout > 0) {
                Calendar lastSessionCheck = MiscFunctions.toCalendar(session.getLastSessionCheck());
                lastSessionCheck.add(Calendar.SECOND, (int)sessionTimeout);
                if(lastSessionCheck.compareTo(dateNow) < 0)
                    causeOfDisconnect = CauseOfDisconnect.TIMED_OUT_SESSION;
            }
            try {
                SessionFactory.disconnect(datastore, txn, session, dateNow.getTime(), causeOfDisconnect);
                txn.commit();
            }
            catch(ConcurrentModificationException e) {
                error = Error.ERROR_IN_SIGN_OUT;
            }
        }
        else {
            SessionLog sessionLog = SessionLogFactory.getBySessionId(datastore, txn, sessionId);
            if(sessionLog != null) {
                causeOfDisconnect = sessionLog.getCauseOfDisconnect();
                fromSessionLog = true;
            }
            else
                error = Error.NON_EXISTENT_SESSION;
        }

        // delete session id cookie
        Cookie sessionIdCookie = new Cookie(Cookies.SESSION_ID.getName(), "");
        sessionIdCookie.setMaxAge(0);
        sessionIdCookie.setPath(Cookies.SESSION_ID_PATH);
        resp.addCookie(sessionIdCookie);

        if((error != Error.NONE || fromSessionLog) && txn.isActive())
            txn.rollback();
    }

    StringBuilder urlParams = new StringBuilder("/utils/sign-in?");
    urlParams.append(HtmlVariable.ERROR.getName());
    urlParams.append("=");
    urlParams.append(error.toString());
    urlParams.append("&");
    urlParams.append(HtmlVariable.CAUSE_OF_DISCONNECT.getName());
    urlParams.append("=");
    urlParams.append(causeOfDisconnect.toString());

    resp.sendRedirect(urlParams.toString());
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:71，代碼來源:SignOutServlet.java

示例8: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getViewSessions() && userPermissionsBean.getDisconnectSessions()) {
        String[] sessionIds = req.getParameterValues(HtmlVariable.SESSION_ID.getName() + "[]");
        Map<String, Boolean> disconnectResults = new HashMap<String, Boolean>();
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        Calendar dateNow = Calendar.getInstance(java.util.TimeZone.getTimeZone(MiscFunctions.UTC_STRING));
        for(int i = 0; i < sessionIds.length; ++i) {
            Error error = Error.NONE;
            CauseOfDisconnect causeOfDisconnect = CauseOfDisconnect.DISCONNECTED_SESSION;
            Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
            Session session = SessionFactory.getBySessionId(datastore, txn, sessionIds[i]);
            if(session != null) {
                long sessionTimeout = session.getSessionTimeout();
                if(sessionTimeout > 0) {
                    Calendar lastSessionCheck = MiscFunctions.toCalendar(session.getLastSessionCheck());
                    lastSessionCheck.add(Calendar.SECOND, (int)sessionTimeout);
                    if(lastSessionCheck.compareTo(dateNow) < 0)
                        causeOfDisconnect = CauseOfDisconnect.TIMED_OUT_SESSION;
                }
                try {
                    SessionFactory.disconnect(datastore, txn, session, dateNow.getTime(), causeOfDisconnect);
                    txn.commit();
                    disconnectResults.put(sessionIds[i], true);
                }
                catch(ConcurrentModificationException e) {
                    error = Error.ERROR_IN_SESSIONS;
                }
            }
            else {
                error = Error.NON_EXISTENT_SESSION;
                disconnectResults.put(sessionIds[i], false);
            }

            if(error != Error.NONE && txn.isActive())
                txn.rollback();
        }

        StringBuilder responseJson = new StringBuilder("{ ");
        for (Map.Entry<String, Boolean> entry : disconnectResults.entrySet()) {
            responseJson.append("\"");
            responseJson.append(entry.getKey());
            responseJson.append("\" : ");
            responseJson.append(entry.getValue().toString());
            responseJson.append(", ");
        }
        if(disconnectResults.size() > 0)
            responseJson.delete(responseJson.length() - 2, responseJson.length());
        responseJson.append(" }");
        resp.setContentType("application/json; charset=UTF-8");
        resp.getWriter().print(responseJson.toString());
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:60，代碼來源:SessionsServlet.java

示例9: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getViewSessions() && userPermissionsBean.getViewSessionPermissions()) {

        if(userPermissionsBean.getChangeSessionPermissions()) {
            long sessionPermissionsCode = 0;
            if(req.getParameter(HtmlVariable.VIEW_SESSIONS.getName()) != null)
                sessionPermissionsCode = sessionPermissionsCode + SessionPermissions.VIEW_SESSIONS.getCode();
            if(req.getParameter(HtmlVariable.DISCONNECT_SESSIONS.getName()) != null)
                sessionPermissionsCode = sessionPermissionsCode + SessionPermissions.DISCONNECT_SESSIONS.getCode();
            if(req.getParameter(HtmlVariable.VIEW_SESSION_PERMISSIONS.getName()) != null)
                sessionPermissionsCode = sessionPermissionsCode + SessionPermissions.VIEW_SESSION_PERMISSIONS.getCode();
            if(req.getParameter(HtmlVariable.CHANGE_SESSION_PERMISSIONS.getName()) != null)
                sessionPermissionsCode = sessionPermissionsCode + SessionPermissions.CHANGE_SESSION_PERMISSIONS.getCode();

            Error error = Error.NONE;
            UserBean userBean = (UserBean)req.getAttribute(AuthRequestAttribute.USER.getName());
            DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
            Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
            User user = UserFactory.getByKey(datastore, txn, userBean.getKey());
            UserPermissions userPermissions = null;
            if(user == null)
                error = Error.NON_EXISTENT_USER;
            else if((userPermissions = PermissionsFactory.getUserPermissionsByUserId(datastore, txn, user.getUserId())) == null)
                error = Error.NO_PERMISSIONS;
            else
                try {
                    userPermissions.setSessionPermissions(sessionPermissionsCode);
                    PermissionsFactory.updateUserPermissions(datastore, txn, userPermissions);
                    txn.commit();
                    userPermissionsBean = new UserPermissionsBean(userPermissions);
                    req.setAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName(), userPermissionsBean);
                }
                catch(ConcurrentModificationException e) {
                    error = Error.ERROR_IN_SESSION_PERMISSIONS;
                }

            if(error != Error.NONE && txn.isActive())
                txn.rollback();

            if(userPermissionsBean.getViewSessions() && userPermissionsBean.getViewSessionPermissions()) {
                req.setAttribute(HtmlVariable.ERROR.getName(), error.toString());
                req.getRequestDispatcher("/WEB-INF/auth/session-permissions.jsp").forward(req, resp);
            }
            else
                resp.sendRedirect("/auth/settings");
        }
        else
            req.getRequestDispatcher("/WEB-INF/auth/session-permissions.jsp").forward(req, resp);
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:58，代碼來源:SessionPermissionsServlet.java

示例10: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getViewSessionLogs() && userPermissionsBean.getRemoveSessionLogs()) {
        String[] sessionIds = req.getParameterValues(HtmlVariable.SESSION_ID.getName() + "[]");
        Map<String, Boolean> removeResults = new HashMap<String, Boolean>();
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        for(int i = 0; i < sessionIds.length; ++i) {
            Error error = Error.NONE;
            Transaction txn = datastore.beginTransaction();
            SessionLog sessionLog = SessionLogFactory.getBySessionId(datastore, txn, sessionIds[i]);
            if(sessionLog != null) {
                try {
                    SessionLogFactory.remove(datastore, txn, sessionLog);
                    txn.commit();
                    removeResults.put(sessionIds[i], true);
                }
                catch(ConcurrentModificationException e) {
                    error = Error.ERROR_IN_SESSION_LOGS;
                }
            }
            else {
                error = Error.NON_EXISTENT_SESSION_LOG;
                removeResults.put(sessionIds[i], false);
            }

            if(error != Error.NONE && txn.isActive())
                txn.rollback();
        }

        StringBuilder responseJson = new StringBuilder("{ ");
        for (Map.Entry<String, Boolean> entry : removeResults.entrySet()) {
            responseJson.append("\"");
            responseJson.append(entry.getKey());
            responseJson.append("\" : ");
            responseJson.append(entry.getValue().toString());
            responseJson.append(", ");
        }
        if(removeResults.size() > 0)
            responseJson.delete(responseJson.length() - 2, responseJson.length());
        responseJson.append(" }");
        resp.setContentType("application/json; charset=UTF-8");
        resp.getWriter().print(responseJson.toString());
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:51，代碼來源:SessionLogsServlet.java

示例11: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getViewUserPermissions() && userPermissionsBean.getChangeUserPermissions()) {

        long userPermissionsCode = 0;
        if(req.getParameter(HtmlVariable.CHANGE_PASSWORD.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_PASSWORD.getCode();
        if(req.getParameter(HtmlVariable.VIEW_EMAIL_ADDRESS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_EMAIL_ADDRESS.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_EMAIL_ADDRESS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_EMAIL_ADDRESS.getCode();
        if(req.getParameter(HtmlVariable.VIEW_TIME_ZONE.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_TIME_ZONE.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_TIME_ZONE.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_TIME_ZONE.getCode();
        if(req.getParameter(HtmlVariable.VIEW_SESSION_TIMEOUT.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_SESSION_TIMEOUT.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_SESSION_TIMEOUT.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_SESSION_TIMEOUT.getCode();
        if(req.getParameter(HtmlVariable.VIEW_MAX_SESSIONS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_MAX_SESSIONS.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_MAX_SESSIONS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_MAX_SESSIONS.getCode();
        if(req.getParameter(HtmlVariable.VIEW_EXCLUSIVE_SESSION.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_EXCLUSIVE_SESSION.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_EXCLUSIVE_SESSION.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_EXCLUSIVE_SESSION.getCode();
        if(req.getParameter(HtmlVariable.VIEW_MAX_FAILED_ATTEMPTS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_MAX_FAILED_ATTEMPTS.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_MAX_FAILED_ATTEMPTS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_MAX_FAILED_ATTEMPTS.getCode();
        if(req.getParameter(HtmlVariable.VIEW_DISABLED_STATUS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_DISABLED_STATUS.getCode();
        if(req.getParameter(HtmlVariable.VIEW_ACTIVATED_STATUS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_ACTIVATED_STATUS.getCode();
        if(req.getParameter(HtmlVariable.VIEW_USER_PERMISSIONS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.VIEW_USER_PERMISSIONS.getCode();
        if(req.getParameter(HtmlVariable.CHANGE_USER_PERMISSIONS.getName()) != null)
            userPermissionsCode = userPermissionsCode + UserPermissions2.CHANGE_USER_PERMISSIONS.getCode();

        Error error = Error.NONE;
        UserBean userBean = (UserBean)req.getAttribute(AuthRequestAttribute.USER.getName());
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
        User user = UserFactory.getByKey(datastore, txn, userBean.getKey());
        UserPermissions userPermissions = null;
        if(user == null)
            error = Error.NON_EXISTENT_USER;
        else if((userPermissions = PermissionsFactory.getUserPermissionsByUserId(datastore, txn, user.getUserId())) == null)
            error = Error.NO_PERMISSIONS;
        else
            try {
                userPermissions.setUserPermissions(userPermissionsCode);
                PermissionsFactory.updateUserPermissions(datastore, txn, userPermissions);
                txn.commit();
                userPermissionsBean = new UserPermissionsBean(userPermissions);
                req.setAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName(), userPermissionsBean);
            }
            catch(ConcurrentModificationException e) {
                error = Error.ERROR_IN_USER_PERMISSIONS;
            }

        if(error != Error.NONE && txn.isActive())
            txn.rollback();

        if(userPermissionsBean.getViewUserPermissions()) {
            req.setAttribute(HtmlVariable.ERROR.getName(), error.toString());
            req.getRequestDispatcher("/WEB-INF/auth/user-permissions.jsp").forward(req, resp);
        }
        else
            resp.sendRedirect("/auth/settings");
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:80，代碼來源:UserPermissionsServlet.java

示例12: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    UserPermissionsBean userPermissionsBean = (UserPermissionsBean)req.getAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName());

    if(userPermissionsBean.getViewSessionLogs() && userPermissionsBean.getViewSessionLogPermissions()) {

        if(userPermissionsBean.getChangeSessionLogPermissions()) {
            long sessionLogPermissionsCode = 0;
            if(req.getParameter(HtmlVariable.VIEW_SESSION_LOGS.getName()) != null)
                sessionLogPermissionsCode = sessionLogPermissionsCode + SessionLogPermissions.VIEW_SESSION_LOGS.getCode();
            if(req.getParameter(HtmlVariable.REMOVE_SESSION_LOGS.getName()) != null)
                sessionLogPermissionsCode = sessionLogPermissionsCode + SessionLogPermissions.REMOVE_SESSION_LOGS.getCode();
            if(req.getParameter(HtmlVariable.VIEW_SESSION_LOG_PERMISSIONS.getName()) != null)
                sessionLogPermissionsCode = sessionLogPermissionsCode + SessionLogPermissions.VIEW_SESSION_LOG_PERMISSIONS.getCode();
            if(req.getParameter(HtmlVariable.CHANGE_SESSION_LOG_PERMISSIONS.getName()) != null)
                sessionLogPermissionsCode = sessionLogPermissionsCode + SessionLogPermissions.CHANGE_SESSION_LOG_PERMISSIONS.getCode();

            Error error = Error.NONE;
            UserBean userBean = (UserBean)req.getAttribute(AuthRequestAttribute.USER.getName());
            DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
            Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
            User user = UserFactory.getByKey(datastore, txn, userBean.getKey());
            UserPermissions userPermissions = null;
            if(user == null)
                error = Error.NON_EXISTENT_USER;
            else if((userPermissions = PermissionsFactory.getUserPermissionsByUserId(datastore, txn, user.getUserId())) == null)
                error = Error.NO_PERMISSIONS;
            else
                try {
                    userPermissions.setSessionLogPermissions(sessionLogPermissionsCode);
                    PermissionsFactory.updateUserPermissions(datastore, txn, userPermissions);
                    txn.commit();
                    userPermissionsBean = new UserPermissionsBean(userPermissions);
                    req.setAttribute(AuthRequestAttribute.USER_PERMISSIONS.getName(), userPermissionsBean);
                }
                catch(ConcurrentModificationException e) {
                    error = Error.ERROR_IN_SESSION_LOG_PERMISSIONS;
                }

            if(error != Error.NONE && txn.isActive())
                txn.rollback();

            if(userPermissionsBean.getViewSessions() && userPermissionsBean.getViewSessionPermissions()) {
                req.setAttribute(HtmlVariable.ERROR.getName(), error.toString());
                req.getRequestDispatcher("/WEB-INF/auth/session-log-permissions.jsp").forward(req, resp);
            }
            else
                resp.sendRedirect("/auth/settings");
        }
        else
            req.getRequestDispatcher("/WEB-INF/auth/session-log-permissions.jsp").forward(req, resp);
    }
    else
        resp.sendRedirect("/auth/settings");
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:58，代碼來源:SessionLogPermissionsServlet.java

示例13: doPost

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    Error error = Error.NONE;

    String userId = req.getParameter(HtmlVariable.USER_ID.getName());

    if(userId == null || userId.length() == 0)
        error = Error.REQUIRED_USER_ID;
    else {
        Date dateNow = new Date();
        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
        Queue queue = QueueFactory.getQueue(SEND_MAIL_TASK_QUEUE);
        Transaction txn = datastore.beginTransaction(TransactionOptions.Builder.withXG(true));
        ResetPasswordRequest resetPasswordRequest = ResetPasswordRequestFactory.getByUserId(datastore, txn, userId);
        if(resetPasswordRequest != null) {
            if(dateNow.before(resetPasswordRequest.getDateOfExpiration()))
                error = Error.ALREADY_EXISTS_REQUEST;
            else
                ResetPasswordRequestFactory.remove(datastore, txn, resetPasswordRequest);
        }
        if(error == Error.NONE) {
            User user = UserFactory.getByUserId(datastore, txn, userId);
            if(user == null)
                error = Error.NON_EXISTENT_USER;
            else if(!user.getActivated())
                error = Error.NOT_ACTIVATED_USER;
            else if(user.getDisabled())
                error = Error.DISABLED_USER;
            else
                try {
                    String requestId = MiscFunctions.getEncryptedHash(MiscFunctions.toUTCDateString(dateNow) + userId, HashAlgorithms.MD5);
                    resetPasswordRequest = new ResetPasswordRequest(requestId, user.getKey(), dateNow);
                    ResetPasswordRequestFactory.add(datastore, txn, resetPasswordRequest);
                    queue.add(TaskOptions.Builder.withUrl(SEND_MAIL_TASK_URL).param(HtmlVariable.USER_ID.getName(), user.getUserId()).param(HtmlVariable.REQUEST_ID.getName(), requestId).param(Cookies.LANG.getName(), (String)req.getAttribute(Cookies.LANG.getName())));
                    txn.commit();
                }
                catch(ConcurrentModificationException e) {
                    error = Error.ERROR_IN_RESET_PASSWORD_REQUEST;
                }
        }

        if(error != Error.NONE && txn.isActive())
            txn.rollback();
    }

    if(error == Error.NONE)
        req.getRequestDispatcher("/WEB-INF/utils/reset-password-notice.jsp").forward(req, resp);
    else {
        req.setAttribute(HtmlVariable.ERROR.getName(), error.toString());
        req.setAttribute(HtmlVariable.USER_ID.getName(), userId);
        req.getRequestDispatcher("/WEB-INF/utils/reset-password.jsp").forward(req, resp);
    }
}
開發者ID:kerafill1116，項目名稱:apollo-datastore，代碼行數:56，代碼來源:ResetPasswordRequestServlet.java

示例14: entityGroups

import com.google.appengine.api.datastore.DatastoreService; //導入方法依賴的package包/類
@Test
public void entityGroups() throws Exception {
  try {
    // [START entity_groups]
    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
    Entity person = new Entity("Person", "tom");
    datastore.put(person);

    // Transactions on root entities
    Transaction txn = datastore.beginTransaction();

    Entity tom = datastore.get(person.getKey());
    tom.setProperty("age", 40);
    datastore.put(txn, tom);
    txn.commit();

    // Transactions on child entities
    txn = datastore.beginTransaction();
    tom = datastore.get(person.getKey());
    Entity photo = new Entity("Photo", tom.getKey());

    // Create a Photo that is a child of the Person entity named "tom"
    photo.setProperty("photoUrl", "http://domain.com/path/to/photo.jpg");
    datastore.put(txn, photo);
    txn.commit();

    // Transactions on entities in different entity groups
    txn = datastore.beginTransaction();
    tom = datastore.get(person.getKey());
    Entity photoNotAChild = new Entity("Photo");
    photoNotAChild.setProperty("photoUrl", "http://domain.com/path/to/photo.jpg");
    datastore.put(txn, photoNotAChild);

    // Throws IllegalArgumentException because the Person entity
    // and the Photo entity belong to different entity groups.
    txn.commit();
    // [END entity_groups]
    fail("Expected IllegalArgumentException");
  } catch (IllegalArgumentException expected) {
    // We expect to get an exception that complains that we don't have a XG-transaction.
  }
}
開發者ID:GoogleCloudPlatform，項目名稱:java-docs-samples，代碼行數:43，代碼來源:TransactionsTest.java


注：本文中的com.google.appengine.api.datastore.DatastoreService.beginTransaction方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。