Example usage for com.mongodb DBCollection remove

Introduction

In this page you can find the example usage for com.mongodb DBCollection remove.

Prototype

public WriteResult remove(final DBObject query) 

Source Link

Document

Remove documents from a collection.

Usage

From source file:com.sample.MyGroceryListServlet.java

License:Open Source License

/**
 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
 *//*from   w ww . j av  a 2 s.com*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // Reference: http://docs.mongodb.org/ecosystem/tutorial/getting-started-with-java-driver/#getting-started-with-java-driver

    String envVars = System.getenv("VCAP_SERVICES");

    DBObject dbO = (DBObject) JSON.parse(envVars);
    String parsedString = dbO.get("mongodb").toString();

    // Remove trailing and starting array brackets (otherwise it won't be valid JSON)
    parsedString = parsedString.replaceFirst("\\[ ", "");
    parsedString = parsedString.replaceFirst("\\]$", "");

    // Get the credentials
    dbO = (DBObject) JSON.parse(parsedString);
    parsedString = dbO.get("credentials").toString();

    // For debugging only
    // System.out.println(parsedString);

    dbO = (DBObject) JSON.parse(parsedString);

    System.out.println("Host name : " + dbO.get("hostname"));
    String hostName = dbO.get("hostname").toString();
    int port = Integer.parseInt(dbO.get("port").toString());
    String dbName = dbO.get("db").toString();
    String userName = dbO.get("username").toString();
    String password = dbO.get("password").toString();

    Mongo mongoClient = new Mongo(hostName, port);

    DB db = mongoClient.getDB(dbName);
    db.authenticate(userName, password.toCharArray());

    // Clean up old entries
    DBCollection coll = db.getCollection("testCollection");
    coll.drop();

    BasicDBObject lastAddedObject = null;
    for (String curItem : myGroceryList) {
        lastAddedObject = new BasicDBObject("i", curItem);
        coll.insert(lastAddedObject);
    }
    response.getWriter().println("<b>My grocery list is:</b>");

    coll.remove(lastAddedObject);
    DBCollection loadedCollection = db.getCollection("testCollection");
    DBCursor cursor = loadedCollection.find();
    try {
        response.getWriter().println("<ul>");
        while (cursor.hasNext()) {
            response.getWriter().println("<li>" + cursor.next().get("i") + "</li>");
        }
        response.getWriter().println("</ul>");
    } finally {
        cursor.close();
    }
}

---

From source file:com.sanaldiyar.projects.nanohttpd.mongodbbasedsessionhandler.MongoDBBasedSessionHandler.java

/**
 * Request parser for session. Gets and builds session information
 *
 * @param request the request// w w w. j  ava  2s  .c  o  m
 * @return session manager
 */
@Override
public NanoSessionManager parseRequest(Request request) {
    MongoDBBasedSessionManager nanoSessionManager = null;
    DBObject session = null;
    String sessionid = null;
    for (Cookie cookie : request.getCookies()) {
        if (cookie.getName().equals(SESSIONCOOKIEID)) {
            sessionid = cookie.getValue();
            break;
        }
    }
    DBCollection sessions = managers.getCollection("sessions");
    if (sessionid != null) {
        DBCursor cursor = sessions.find(new BasicDBObject("sessionid", sessionid));
        List<DBObject> result = cursor.toArray();
        cursor.close();
        if (result.size() == 1) {
            session = result.get(0);
        }
        if (session != null) {
            if (((Date) session.get("expires")).getTime() <= new Date().getTime()) {
                sessions.remove(new BasicDBObject().append("sessionid", sessionid));
                session = null;
            }
        }
    }
    if (session == null) {
        do {
            sessionid = new BigInteger(128, srng).toString(32);
        } while (sessions.findOne(new BasicDBObject().append("sessionid", sessionid)) != null
                && !sessionid.equals("0"));
        session = new BasicDBObject();
        nanoSessionManager = new MongoDBBasedSessionManager(session);
        nanoSessionManager.setSessionID(sessionid);
        sessions.insert(session);
    } else {
        nanoSessionManager = new MongoDBBasedSessionManager(session);
    }
    return nanoSessionManager;
}

---

From source file:com.sanaldiyar.projects.nanohttpd.mongodbbasedsessionhandler.MongoDBBasedSessionHandler.java

/**
 * Session manager cleaner method/*from   w w w.  j a v a 2 s.c  om*/
 */
public void cleanSesssionManagers() {
    DBCollection sessions = managers.getCollection("sessions");
    sessions.remove(new BasicDBObject("expires", new BasicDBObject("$lte", new Date())));
}

---

From source file:com.sitewhere.mongodb.MongoPersistence.java

License:Open Source License

/**
 * Common handler for deleting objects. Assures that errors are handled in a
 * consistent way./*from   w  ww . j  av a  2 s  .c  om*/
 * 
 * @param collection
 * @param object
 * @return
 * @throws SiteWhereException
 */
public static WriteResult delete(DBCollection collection, DBObject object) throws SiteWhereException {
    WriteResult result = collection.remove(object);
    if (!result.getLastError().ok()) {
        throw new SiteWhereException("Error during delete: " + result.getLastError().toString());
    }
    return result;
}

---

From source file:com.softlyinspired.jlw.script.validationScript.java

License:Open Source License

/**
 * delete the script from the mongodb/*from w  w  w.java  2s.c  o m*/
 * @param ScriptId
 * @throws UnknownHostException
 */
public void deleteScript(int ScriptId) throws UnknownHostException {
    DBCollection coll = repoConnection.getScriptCollection();

    try {
        BasicDBObject query = new BasicDBObject();
        query.put("scriptId", ScriptId);
        coll.remove(query);
    } catch (Exception e) {
        JLWUtilities.scriptErrorMessage("Error deleting script");
    }
}

---

From source file:com.spring.tutorial.controllers.DefaultController.java

@RequestMapping(value = "/my-drive/delete", method = RequestMethod.POST)
public @ResponseBody String delete(HttpServletRequest request) throws UnknownHostException, Exception {
    MongoData mongoData = new MongoData();
    DB db = mongoData.getDB();/*  w w  w .ja v  a2 s  .  c  o  m*/
    DBCollection collection = db.getCollection(request.getSession().getAttribute("id") + "_files_meta");

    BasicDBObject document = new BasicDBObject();
    String fileID = request.getParameter("fileID").toString();
    document.put("file-id", new ObjectId(fileID));
    collection.remove(document);

    document = new BasicDBObject();
    GridFS gfs = new GridFS(db, request.getSession().getAttribute("id").toString() + "_files.files");
    document.put("_id", new ObjectId(fileID));
    gfs.remove(document);

    collection.remove(document);

    return fileID;
}

---

From source file:com.spring.tutorial.controllers.DefaultController.java

@RequestMapping(value = "/my-drive/dropbox/delete", method = RequestMethod.POST)
public @ResponseBody String deleteDropboxFile(HttpServletRequest request)
        throws DbxException, UnknownHostException, Exception {
    String path = request.getParameter("path");

    DbxRequestConfig config = new DbxRequestConfig("JavaTutorial/1.0", Locale.getDefault().toString());
    DbxClient client = new DbxClient(config, (String) request.getSession().getAttribute("dropbox_token"));
    client.delete(path);/*from  w w w. j  a  v a2  s .  c o  m*/
    MongoData mongoData = new MongoData();
    DB db = mongoData.getDB();
    DBCollection collection = db.getCollection(request.getSession().getAttribute("id") + "_dropbox_files_meta");

    BasicDBObject document = new BasicDBObject();
    document.put("path", path);
    collection.remove(document);

    return "sucessfull";
}

---

From source file:com.spring.tutorial.dropbox.DropBoxAuth.java

public void removeJunk(String id, DbxClient client, String path) throws UnknownHostException, Exception {

    List<String> paths = new ArrayList<>();
    getDropboxPaths(id, paths, "/");

    MongoData mongoData = new MongoData();
    DB db = mongoData.getDB();/*from w  ww  . ja v  a2s.c om*/
    DBCollection collection = db.getCollection(id + "_dropbox_files_meta");
    DBCursor cursor = collection.find();

    if (cursor.count() != 0) {
        while (cursor.hasNext()) {
            boolean found = false;
            DBObject doc = cursor.next();
            for (String onePath : paths) {
                if (doc.get("path").equals(onePath)) {
                    found = true;
                }
            }
            if (found == false) {
                collection.remove(doc);
            }
        }
    }
}

---

From source file:com.stratio.connector.mongodb.core.engine.MongoStorageEngine.java

License:Apache License

@Override
protected void delete(TableName tableName, Collection<Filter> whereClauses, Connection<MongoClient> connection)
        throws ExecutionException, UnsupportedException {

    DB db = connection.getNativeConnection().getDB(tableName.getCatalogName().getName());
    if (db.collectionExists(tableName.getName())) {
        DBCollection coll = db.getCollection(tableName.getName());

        try {// w  ww .ja v a2  s  .c  o m
            coll.remove(buildFilter(whereClauses));
        } catch (MongoException e) {
            logger.error("Error deleting the data: " + e.getMessage());
            throw new MongoDeleteException(e.getMessage(), e);
        }

    }

}

---

From source file:com.stratio.qa.utils.MongoDBUtils.java

License:Apache License

/**
 * Drop all the data associated to a MongoDB Collection.
 *
 * @param collectionName/* www. j a va2s  .co  m*/
 */
public void dropAllDataMongoDBCollection(String collectionName) {
    DBCollection db = getMongoDBCollection(collectionName);
    DBCursor objectsList = db.find();
    try {
        while (objectsList.hasNext()) {
            db.remove(objectsList.next());
        }
    } finally {
        objectsList.close();
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• »