Example usage for com.mongodb.client MongoCollection find

Introduction

In this page you can find the example usage for com.mongodb.client MongoCollection find.

Prototype

FindIterable<TDocument> find(ClientSession clientSession);

Source Link

Document

Finds all documents in the collection.

Usage

From source file:com.imaginea.mongodb.services.impl.DocumentServiceImpl.java

License:Apache License

/**
 * Deletes a document inside a collection in a database in mongo to which user is connected to.
 *
 * @param dbName Name of Database//from  w ww  .j a  v  a 2  s . c o  m
 * @param collectionName Name of Collection from which to get all Documents
 * @param _id Id of Document to be updated
 * @return Deletion status
 * @throws DatabaseException throw super type of UndefinedDatabaseException
 * @throws ValidationException throw super type of
 *         EmptyDatabaseNameException,EmptyCollectionNameException ,EmptyDocumentDataException
 * @throws CollectionException throw super type of UndefinedCollectionException
 * @throws DocumentException throw super type of DeleteDocumentException
 */

public String deleteDocument(String dbName, String collectionName, String _id)
        throws DatabaseException, CollectionException, DocumentException, ValidationException {
    if (dbName == null) {
        throw new DatabaseException(ErrorCodes.DB_NAME_EMPTY, "Database name is null");

    }
    if (dbName.equals("")) {
        throw new DatabaseException(ErrorCodes.DB_NAME_EMPTY, "Database Name Empty");
    }

    if (collectionName == null) {
        throw new CollectionException(ErrorCodes.COLLECTION_NAME_EMPTY, "Collection name is null");
    }
    if (collectionName.equals("")) {
        throw new CollectionException(ErrorCodes.COLLECTION_NAME_EMPTY, "Collection Name Empty");
    }

    String result = null;
    Document documentData = null;
    try {
        // if (!databaseService.getDbList().contains(dbName)) {
        //   throw new DatabaseException(ErrorCodes.DB_DOES_NOT_EXISTS,
        //       "DB [" + dbName + "] DOES NOT EXIST");
        // }

        if (!collectionService.getCollList(dbName).contains(collectionName)) {
            throw new CollectionException(ErrorCodes.COLLECTION_DOES_NOT_EXIST,
                    "COLLECTION [ " + collectionName + "] _DOES_NOT_EXIST in Db [ " + dbName + "]");
        }

        boolean cappedCollection = (boolean) collectionService.isCappedCollection(dbName, collectionName)
                .get("capped");

        if (cappedCollection) {
            throw new DocumentException(ErrorCodes.DELETING_FROM_CAPPED_COLLECTION,
                    "Cannot Delete From a Capped Collection");
        }
        if (_id == null) {
            throw new DocumentException(ErrorCodes.DOCUMENT_EMPTY, "Document is empty");
        }

        Document query = new Document();

        ObjectId docId = new ObjectId(_id);

        query.put("_id", docId);

        MongoCollection<Document> collection = this.mongoInstance.getDatabase(dbName)
                .getCollection(collectionName);
        documentData = collection.find(query).first();

        if (documentData == null) {
            throw new DocumentException(ErrorCodes.DOCUMENT_DOES_NOT_EXIST, "Document does not exist !");
        }

        DeleteResult deleteOne = mongoInstance.getDatabase(dbName).getCollection(collectionName)
                .deleteOne(query);

    } catch (MongoException e) {
        throw new DocumentException(ErrorCodes.DOCUMENT_DELETION_EXCEPTION, e.getMessage());
    }
    result = "Document with Data : [" + documentData + "] has been deleted.";
    return result;
}

---

From source file:com.inflight.rest.AddFlightService.java

@SuppressWarnings("resource")
@POST//from  w  ww .  j  a  v a 2 s.  c o m
@Consumes("application/x-www-form-urlencoded")
@Produces(MediaType.APPLICATION_JSON)
public String signup(@FormParam("username") String username, @FormParam("confirmCode") String confirmCode,
        @FormParam("fromLocation") String fromLocation, @FormParam("toLocation") String toLocation)
        throws Exception {

    MongoClientURI connectionString = new MongoClientURI(
            "mongodb://ramkrish:1234567@ds029446.mlab.com:29446/inflight");
    MongoClient mongoClient = new MongoClient(connectionString);
    String result = "";

    MongoDatabase database = mongoClient.getDatabase("inflight");
    MongoCollection<Document> collection = database.getCollection("location");

    Document doc = collection.find(or(eq("confirmCode", confirmCode), eq("toLocation", toLocation))).first();
    if (doc == null) {
        Document newDoc = new Document("username", username).append("confirmCode", confirmCode)
                .append("fromLocation", fromLocation).append("toLocation", toLocation);

        collection.insertOne(newDoc);
        result = "{\"success\": true}";
        return result;
    } else {
        result = "{\"success\": false, \"message\": \"Booking Reference or To Location already exists\"}";
        return result;
    }
}

---

From source file:com.inflight.rest.LoginService.java

@SuppressWarnings("resource")
@POST//from www  .  j  a  v a 2  s.c  o m
@Consumes("application/x-www-form-urlencoded")
@Produces(MediaType.APPLICATION_JSON)
public String login(@FormParam("username") String username, @FormParam("password") String password)
        throws Exception {

    MongoClientURI connectionString = new MongoClientURI(
            "mongodb://ramkrish:1234567@ds029446.mlab.com:29446/inflight");
    MongoClient mongoClient = new MongoClient(connectionString);
    String result = "";

    MongoDatabase database = mongoClient.getDatabase("inflight");
    MongoCollection<Document> collection = database.getCollection("users");

    Document doc = collection.find(eq("username", username)).first();

    if (doc != null) {
        String actualPass = doc.get("password").toString();
        if (Password.check(password, actualPass)) {
            result = "{\"success\": true}";
            return result;
        } else {
            result = "{\"success\": false, \"message\": \"Invalid Password\"}";
            return result;
        }
    } else {
        result = "{\"success\": false, \"message\": \"Invalid Username\"}";
        return result;
    }

}

---

From source file:com.inflight.rest.SignUpService.java

@SuppressWarnings("resource")
@POST//from  w  w  w. j a  va  2  s.  co  m
@Consumes("application/x-www-form-urlencoded")
@Produces(MediaType.APPLICATION_JSON)
public String signup(@FormParam("username") String username, @FormParam("password") String password,
        @FormParam("email") String email) throws Exception {

    MongoClientURI connectionString = new MongoClientURI(
            "mongodb://ramkrish:1234567@ds029446.mlab.com:29446/inflight");
    MongoClient mongoClient = new MongoClient(connectionString);
    String result = "";

    MongoDatabase database = mongoClient.getDatabase("inflight");
    MongoCollection<Document> collection = database.getCollection("users");

    Document doc = collection.find(or(eq("username", username), eq("email", email))).first();
    if (doc == null) {
        Document newDoc = new Document("username", username)
                .append("password", Password.getSaltedHash(password)).append("email", email);

        collection.insertOne(newDoc);
        result = "{\"success\": true}";
        return result;
    } else {
        result = "{\"success\": false, \"message\": \"Username or Email already exists\"}";
        return result;
    }

}

---

From source file:com.jaeksoft.searchlib.crawler.database.DatabaseCrawlMongoDbThread.java

License:Open Source License

@Override
public void runner() throws Exception {
    setStatus(CrawlStatus.STARTING);/*  w  w w  .  j a va  2  s.  c o m*/

    MongoClient mongoClient = null;
    try {
        mongoClient = databaseCrawl.getMongoClient();
        MongoCollection<Document> collection = databaseCrawl.getCollection(mongoClient);
        FindIterable<Document> iterable = collection.find(databaseCrawl.getCriteriaObject());
        setStatus(CrawlStatus.CRAWL);
        if (iterable != null)
            runner_update(iterable);
        if (updatedIndexDocumentCount > 0 || updatedDeleteDocumentCount > 0)
            client.reload();
    } finally {
        if (mongoClient != null)
            mongoClient.close();
    }

}

---

From source file:com.left8.evs.utilities.dsretriever.MongoHandler.java

License:Open Source License

/**
 * This method parses the MongoDB store and returns the tweet that matches
 * a given ID. <br>//from  w ww  . j  ava  2  s  .  c o m
 * <i>Note: Consider creating an index on the field 'id' of the MongoDB Store.</i>
 * @param id The id of the tweet to be retrieved.
 * @return A Tweet object containing all the information found in the document
 * that matched the long 'id'.
 */
public final Tweet getATweetByIdFromMongoDBStore(long id) {
    MongoCollection<Document> collection = db.getCollection(config.getRawTweetsCollectionName());
    try {
        FindIterable<Document> iterable = collection.find(new Document(config.getTweetIdFieldName(), id));

        Document tweetDoc = iterable.first();

        //Get tweet ID
        long id_ = tweetDoc.getLong(config.getTweetIdFieldName());
        Document user = tweetDoc.get(config.getUserDocumentFieldName(), Document.class); //Get the embedded document

        //User details
        String username = user.getString(config.getUsernameFieldName()); //Name
        long userId;
        try {
            userId = user.getLong(config.getUserIdFieldName());
        } catch (ClassCastException e) {
            userId = user.getInteger(config.getUserIdFieldName());
        }

        //Tweet text, date and language
        String text = tweetDoc.getString(config.getTextFieldName());
        Date date = tweetDoc.getDate(config.getDateFieldName());
        String language = tweetDoc.getString(config.getLanguageFieldName());

        //Coordinates
        Document coordinates = tweetDoc.get(config.getCoordinatesDocumentFieldName(), Document.class);
        double latitude = -1;
        double longitude = -1;
        if (coordinates != null) {
            try {
                List<Double> coords = coordinates.get(config.getCoordinatesDocumentFieldName(),
                        ArrayList.class);
                latitude = coords.get(0);
                longitude = coords.get(1);
            } catch (ClassCastException e) { //Case where data where incorrectly casted as integers
                List<Integer> coords = coordinates.get(config.getCoordinatesDocumentFieldName(),
                        ArrayList.class);
                latitude = coords.get(0);
                longitude = coords.get(1);
            }
        }

        //Number of retweets and favorites
        int numberOfRetweets = tweetDoc.getInteger(config.getRetweetsCountFieldName());
        int numberOfFavorites = tweetDoc.getInteger(config.getFavoritesCountFieldName());
        boolean isFavorited = tweetDoc.getBoolean(config.getFavoritedFieldName());
        boolean isRetweeted = tweetDoc.getBoolean(config.getRetweetedFieldName());

        //Retweet status
        boolean isRetweet;
        long retweetId;
        try {
            Document retweetStatus = tweetDoc.get(config.getRetweetedStatusDocumentFieldName(), Document.class);
            isRetweet = true;
            retweetId = retweetStatus.getLong(config.getRetweetIdFieldName());
        } catch (NullPointerException e) {
            isRetweet = false;
            retweetId = -1;
        }

        int stanfordSentiment;
        try {
            stanfordSentiment = tweetDoc.getInteger(config.getStanfordSentimentName());
        } catch (NullPointerException e) {
            stanfordSentiment = -1;
        }

        int naiveBayesSentiment;
        try {
            naiveBayesSentiment = tweetDoc.getInteger(config.getNaiveBayesSentimentName());
        } catch (NullPointerException e) {
            naiveBayesSentiment = -10;
        }

        int bayesianNetSentiment;
        try {
            bayesianNetSentiment = tweetDoc.getInteger(config.getBayesianNetSentimentName());
        } catch (NullPointerException e) {
            bayesianNetSentiment = -10;
        }

        int posEmot, negEmot;
        try {
            posEmot = tweetDoc.getInteger(config.getPositiveEmoticonFieldName());
            negEmot = tweetDoc.getInteger(config.getNegativeEmoticonFieldName());
        } catch (NullPointerException e) {
            posEmot = 0;
            negEmot = 0;
        }
        Tweet tweet = new Tweet(id_, username, userId, text, date, latitude, longitude, numberOfRetweets,
                numberOfFavorites, isRetweet, isFavorited, isRetweeted, language, retweetId, stanfordSentiment,
                posEmot, negEmot, naiveBayesSentiment, bayesianNetSentiment);

        return tweet;
    } catch (MongoException e) {
        Utilities.printMessageln("Unknown Mongo problem with tweet '" + id + "'.");
        Logger.getLogger(MongoHandler.class.getName()).log(Level.SEVERE, null, e);
        return null;
    } catch (NullPointerException e) { //Tweet does not exist
        return null;
    }
}

---

From source file:com.left8.evs.utilities.dsretriever.MongoHandler.java

License:Open Source License

/**
 * Determines whether a tweet exists in the MongoDB Store.
 * @param id The id of the tweet to be searched.
 * @return True if the tweet exists, false otherwise.
 *//*  w ww.ja  v a2 s  . co  m*/
public final boolean tweetExists(long id) {
    MongoCollection<Document> collection = db.getCollection(config.getRawTweetsCollectionName());
    try {
        collection.find(new Document(config.getTweetIdFieldName(), id));
        return true;
    } catch (NullPointerException e) { //Tweet does not exist
        return false;
    }
}

---

From source file:com.left8.evs.utilities.dsretriever.MongoHandler.java

License:Open Source License

/**
 * Checks whether a tweet is already annotated with its stanfordSentiment.
 * @param id The ID of the tweet to be checked for.
 * @param fieldName The MongoDB field name of ID.
 * @return True if the tweet is stanfordSentiment annotated, false otherwise.
 *//*from   w w  w .j  ava 2  s  .c o  m*/
public final boolean tweetHasSentiment(long id, String fieldName) {
    MongoCollection<Document> collection = db.getCollection(config.getRawTweetsCollectionName());
    int sentiment;
    FindIterable<Document> iterable = collection.find(new Document(config.getTweetIdFieldName(), id));
    Document tweetDoc = iterable.first();
    try {
        sentiment = tweetDoc.getInteger(fieldName);
        return true;
    } catch (NullPointerException e) { //Tweet does not exist
        return false;
    }
}

---

From source file:com.my.food.recipe.db.MongoDb.java

public RecipeSummary getRecipeSummary(String recipeId) {
    MongoCollection<BsonDocument> collectionRecipeSummary = database.getCollection("recipeSummary",
            BsonDocument.class);
    BsonDocument document = collectionRecipeSummary.find(eq("_id", recipeId)).first();
    if (document != null) {
        LOG.info("get document = {}", document.toString());
        return new RecipeSummary().fromJson(document.toJson());
    } else {//from w ww  .  java  2  s  .  c om
        LOG.info("Null Document for recipeId={}", recipeId);
        return null;
    }

}

---

From source file:com.redhat.thermostat.gateway.service.jvms.mongo.JvmInfoMongoStorageHandler.java

License:Open Source License

public String getJvmsTree(MongoCollection<Document> collection, boolean aliveOnly, String excludes,
        String includes, int limit, int offset) {
    FindIterable<Document> documents;

    if (aliveOnly) {
        documents = collection.find(lt(StorageFields.STOP_TIME, 0));
    } else {//from   w  ww  .j a  v a  2s.co m
        documents = collection.find();
    }

    documents = documents.limit(limit).skip(offset);

    boolean includeSystemId = true;
    if (excludes != null) {
        List<String> excludesList = new ArrayList<>(Arrays.asList(excludes.split(",")));
        if (excludesList.contains(StorageFields.SYSTEM_ID)) {
            excludesList.remove(StorageFields.SYSTEM_ID);
            includeSystemId = false;
        }
        if (excludesList.size() > 0) {
            documents = documents.projection(fields(exclude(excludesList), excludeId()));
        } else {
            documents = documents.projection(excludeId());
        }
    } else if (includes != null) {
        List<String> includesList = new ArrayList<>(Arrays.asList(includes.split(",")));
        if (!includesList.contains(StorageFields.SYSTEM_ID)) {
            includesList.add(StorageFields.SYSTEM_ID);
            includeSystemId = false;
        }
        documents = documents.projection(fields(include(includesList), excludeId()));
    } else {
        documents = documents.projection(excludeId());
    }

    final Map<String, StringBuilder> map = new HashMap<>();

    final boolean finalIncludeSystemId = includeSystemId;
    documents.forEach(new Block<Document>() {
        @Override
        public void apply(Document document) {
            String systemId = document.getString(StorageFields.SYSTEM_ID);
            if (!finalIncludeSystemId) {
                document.remove(StorageFields.SYSTEM_ID);
            }

            if (!map.containsKey(systemId)) {
                map.put(systemId, new StringBuilder().append("{\"" + StorageFields.SYSTEM_ID + "\":\""
                        + systemId + "\", \"" + StorageFields.JVMS + "\":["));
            }

            map.get(systemId).append(document.toJson()).append(",");
        }
    });

    StringBuilder responseBuilder = new StringBuilder().append("{ \"" + StorageFields.RESPONSE + "\" : [");
    if (map.size() > 0) {
        for (StringBuilder systemBuilder : map.values()) {
            responseBuilder.append(systemBuilder.deleteCharAt(systemBuilder.length() - 1).toString());
            responseBuilder.append("]},");
        }
        responseBuilder.deleteCharAt(responseBuilder.length() - 1);
    }
    responseBuilder.append("]}");

    return responseBuilder.toString();
}

---

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