Java Objectify类代码示例

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
@Override
public List<AdminUser> searchUsers(final String partialEmail) {
  final List<AdminUser> retval = new ArrayList();
  try {
    runJobWithRetries(new JobRetryHelper() {
        @Override
        public void run(Objectify datastore) {
          Query<UserData> userDataQuery = datastore.query(UserData.class).filter("email >=", partialEmail);
          int count = 0;
          for (UserData user : userDataQuery) {
            boolean isModerator = (user.type == 1);
            retval.add(new AdminUser(user.id, user.name, user.email, user.tosAccepted,
                user.isAdmin, isModerator, user.visited));
            count++;
            if (count > 20) {
              break;
            }
          }
        }
      }, false);
  } catch (ObjectifyException e) {
    throw CrashReport.createAndLogError(LOG, null, null, e);
  }
  return retval;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Returns a wrapped class which contains list of most recently
 * updated galleryApps and total number of results in database
 * @param start starting index of apps you want
 * @param count number of apps you want
 * @return list of {@link GalleryApp}
 */
@Override
public GalleryAppListResult getRecentGalleryApps(int start, final int count) {
  final List<GalleryApp> apps = new ArrayList<GalleryApp>();
  // If I try to run this in runjobwithretries, it tells me can't run
  // non-ancestor query as a transaction. ObjectifyStorageio has some samples
  // of not using transactions (run with) so I grabbed.

  Objectify datastore = ObjectifyService.begin();
  for (GalleryAppData appData:datastore.query(GalleryAppData.class).order("-dateModified").filter("active", true).offset(start).limit(count)) {
    GalleryApp gApp = new GalleryApp();
    makeGalleryApp(appData, gApp);
    apps.add(gApp);
  }
  int totalCount = datastore.query(GalleryAppData.class).order("-dateModified").filter("active", true).count();
  return new GalleryAppListResult(apps, totalCount);
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Returns a wrapped class which contains a list of most downloaded
 * gallery apps and total number of results in database
 * @param start starting index of apps you want
 * @param count number of apps you want
 * @return list of {@link GalleryApp}
 */
@Override
public GalleryAppListResult getMostDownloadedApps(int start, final int count) {
  final List<GalleryApp> apps = new ArrayList<GalleryApp>();
  // If I try to run this in runjobwithretries, it tells me can't run
  // non-ancestor query as a transaction. ObjectifyStorageio has some samples
  // of not using transactions (run with) so I grabbed.

  Objectify datastore = ObjectifyService.begin();
  for (GalleryAppData appData:datastore.query(GalleryAppData.class).order("-numDownloads").filter("active", true).offset(start).limit(count)) {
    GalleryApp gApp = new GalleryApp();
    makeGalleryApp(appData, gApp);
    apps.add(gApp);
  }
  int totalCount = datastore.query(GalleryAppData.class).order("-numDownloads").filter("active", true).count();
  return new GalleryAppListResult(apps, totalCount);
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Returns a wrapped class which contains a list of galleryApps
 * by a particular developer and total number of results in database
 * @param userId id of developer
 * @param start starting index of apps you want
 * @param count number of apps you want
 * @return list of {@link GalleryApp}
 */  @Override
public GalleryAppListResult getDeveloperApps(String userId, int start, final int count) {
  final List<GalleryApp> apps = new ArrayList<GalleryApp>();
  // if i try to run this in runjobwithretries it tells me can't run
  // non-ancestor query as a transaction. ObjectifyStorageio has some samples
  // of not using transactions (run with) so i grabbed

  Objectify datastore = ObjectifyService.begin();
  for (GalleryAppData appData:datastore.query(GalleryAppData.class).filter("userId",userId).filter("active", true).offset(start).limit(count)) {
    GalleryApp gApp = new GalleryApp();
    makeGalleryApp(appData, gApp);
    apps.add(gApp);
  }
  int totalCount = datastore.query(GalleryAppData.class).filter("userId",userId).filter("active", true).count();
  return new GalleryAppListResult(apps, totalCount);
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Records that an app has been downloaded
 * @param galleryId the id of gallery app that was downloaded
 */
@Override
public void incrementDownloads(final long galleryId) {

  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        GalleryAppData galleryAppData = datastore.find(galleryKey(galleryId));
        if (galleryAppData != null) {
          galleryAppData.numDownloads = galleryAppData.numDownloads + 1;
          galleryAppData.unreadDownloads = galleryAppData.unreadDownloads + 1;
          datastore.put(galleryAppData);
        }
      }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo", e);
  }
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * updates gallery app
 * @param galleryId id of app being updated
 * @param title new title of app
 * @param description new description of app
 * @param userId if of user publishing this app
 */
@Override
public void updateGalleryApp(final long galleryId, final String title,
    final String description, final String moreInfo, final String credit,
    final String userId) {

  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        GalleryAppData galleryAppData = datastore.find(galleryKey(galleryId));
        if (galleryAppData != null) {
          long date = System.currentTimeMillis();
          galleryAppData.title = title;
          galleryAppData.description = description;
          galleryAppData.moreInfo = moreInfo;
          galleryAppData.credit = credit;
          galleryAppData.dateModified = date;
          datastore.put(galleryAppData);
        }
      }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo", e);
  }
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * adds a comment to a gallery app
 * @param galleryId id of gallery app that was commented on
 * @param userId id of user who commented
 * @param comment comment
 * @return the id of the new comment
 */
@Override
public long addComment(final long galleryId, final String userId, final String comment) {
  final Result<Long> theDate = new Result<Long>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        GalleryCommentData commentData = new GalleryCommentData();
        long date = System.currentTimeMillis();
        commentData.comment = comment;
        commentData.userId = userId;
        commentData.galleryKey = galleryKey(galleryId);
        commentData.dateCreated = date;
        theDate.t = date;

        datastore.put(commentData);
      }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.addComment", e);
  }
  return theDate.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * get num likes of a gallery app
 *
 * @param galleryId
 *          id of gallery app
 * @return the num of like
 */
public int getNumLikes(final long galleryId) {
  final Result<Integer> num = new Result<Integer>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        Key<GalleryAppData> galleryKey = galleryKey(galleryId);
        //num.t = datastore.query(GalleryAppLikeData.class).ancestor(galleryKey).count();
        GalleryAppData galleryAppData = datastore.find(galleryKey);
        num.t = galleryAppData.numLikes;
      }
    });
  } catch (ObjectifyException e) {
    throw CrashReport.createAndLogError(LOG, null,
        "error in galleryStorageIo.getNumLike", e);
  }
  return num.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * get the list of children Gallery Apps
 *
 * @param galleryId
 *          id of gallery app
 * @return the list of children Gallery Apps
 */
public List<GalleryApp> remixedTo(final long galleryId) {
  final List<GalleryApp> apps = new ArrayList<GalleryApp>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
            datastore = ObjectifyService.begin();
            for (GalleryAppAttributionData attributionData:datastore.query(GalleryAppAttributionData.class).filter("attributionId",galleryId)) {
              GalleryAppData galleryAppData = datastore.find(galleryKey(attributionData.galleryId));
              if(!galleryAppData.active) continue;
              GalleryApp gApp = new GalleryApp();
              makeGalleryApp(galleryAppData, gApp);
              apps.add(gApp);
            }
      }
    });
  } catch (ObjectifyException e) {
    throw CrashReport.createAndLogError(LOG, null,
        "error in galleryStorageIo.saveAttribution", e);
  }
  return apps;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * adds a report (flag) to a gallery app
 * @param galleryId id of gallery app that was commented on
 * @param offenderId id of user who commented
 * @param reporterId report
 * @return the id of the new report
 */
@Override
public long addAppReport(final String reportText, final long galleryId,final String offenderId, final String reporterId) {
  final Result<Long> theDate = new Result<Long>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        GalleryAppReportData reportData = new GalleryAppReportData();
        long date = System.currentTimeMillis();
        reportData.id = null;  // let Objectify auto-generate the GalleryAppReportData id
        reportData.reportText = reportText;
        reportData.reporterId = reporterId;
        reportData.offenderId = offenderId;
        reportData.galleryKey = galleryKey(galleryId);
        reportData.dateCreated=date;
        reportData.resolved = false;
        theDate.t=date;
        datastore.put(reportData);
      }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.addAppReport", e);
  }
  return theDate.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Returns a list of reports (flags) for an app
 * @param galleryId id of gallery app
 * @param start start index
 * @param count number to return
 * @return list of {@link GalleryAppReport}
 */
@Override
public List<GalleryAppReport> getAppReports(final long galleryId, final int start, final int count) {
 final List<GalleryAppReport> reports = new ArrayList<GalleryAppReport>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        Key<GalleryAppData> galleryKey = galleryKey(galleryId);
        for (GalleryAppReportData reportData : datastore.query(GalleryAppReportData.class).filter("resolved", false).order("-dateCreated").offset(start).limit(count)) {
          User reporter = storageIo.getUser(reportData.reporterId);
          User offender = storageIo.getUser(reportData.offenderId);
          GalleryApp app = getGalleryApp(galleryId);
          GalleryAppReport galleryReport = new GalleryAppReport(reportData.id,reportData.reportText, app, offender, reporter,
              reportData.dateCreated, reportData.resolved);
          reports.add(galleryReport);
        }
      }
    });
  } catch (ObjectifyException e) {
      throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.getAppReports", e);
  }
  return reports;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * mark an report as resolved
 * @param reportId the id of the app
 */
@Override
public boolean markReportAsResolved(final long reportId, final long galleryId){
  final Result<Boolean> success = new Result<Boolean>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        datastore = ObjectifyService.begin();
        success.t = false;
        Key<GalleryAppData> galleryKey = galleryKey(galleryId);
        for (GalleryAppReportData reportData : datastore.query(GalleryAppReportData.class).ancestor(galleryKey)) {
          if(reportData.id == reportId){
            reportData.resolved = !reportData.resolved;
            datastore.put(reportData);
            success.t = true;
            break;
          }
        }
       }
    });
   } catch (ObjectifyException e) {
       throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.markReportAsResolved", e);
   }
   return success.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * check if gallery app is activated
 * @param galleryId the id of the gallery app
 */
@Override
public boolean isGalleryAppActivated(final long galleryId){
  final Result<Boolean> success = new Result<Boolean>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
          datastore = ObjectifyService.begin();
          success.t = false;
          Key<GalleryAppData> galleryKey = galleryKey(galleryId);
          GalleryAppData appData = datastore.find(galleryKey);
          if(appData != null){
            if(appData.active){
              success.t = true;
            }
          }
       }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.markReportAsResolved", e);
  }
  return success.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * adds a report (flag) to a gallery app comment
 * @param commentId id of comment that was reported
 * @param userId id of user who commented
 * @param report report
 * @return the id of the new report
 */
@Override
public long addCommentReport(final long commentId, final String userId, final String report) {
  final Result<Long> theDate = new Result<Long>();
  try {
    runJobWithRetries(new JobRetryHelper() {
      @Override
      public void run(Objectify datastore) {
        GalleryCommentReportData reportData = new GalleryCommentReportData();
        long date = System.currentTimeMillis();
        reportData.report = report;
        reportData.userId = userId;
        reportData.galleryCommentKey = galleryCommentKey(commentId);
        reportData.dateCreated=date;
        theDate.t=date;
        datastore.put(reportData);
      }
    });
  } catch (ObjectifyException e) {
     throw CrashReport.createAndLogError(LOG, null, "error in galleryStorageIo.addCommentReport", e);
  }
  return theDate.t;
}
 

import com.googlecode.objectify.Objectify; //导入依赖的package包/类
/**
 * Returns a list of reports (flags) for all comments
 * @return list of {@link GalleryCommentReport}
 */
@Override
public List<GalleryCommentReport> getCommentReports() {
  final List<GalleryCommentReport> reports = new ArrayList<GalleryCommentReport>();
  Objectify datastore = ObjectifyService.begin();
  for (GalleryCommentReportData reportData : datastore.query(GalleryCommentReportData.class).order("-dateCreated")) {
    User commenter = storageIo.getUser(reportData.userId);
    String name="unknown";
    if (commenter!= null) {
       name = commenter.getUserName();
    }
    GalleryCommentReport galleryCommentReport = new GalleryCommentReport(reportData.galleryCommentKey.getId(),
        reportData.userId,reportData.report,reportData.dateCreated);
    galleryCommentReport.setUserName(name);
    reports.add(galleryCommentReport);
  }
  return reports;
}