Example usage for com.mongodb.client MongoCollection drop

Introduction

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

Prototype

void drop();

Source Link

Document

Drops this collection from the Database.

Usage

From source file:org.jongo.use_native.NativeTestBase.java

License:Apache License

protected <T> com.mongodb.client.MongoCollection<T> createNativeCollection(String collectionName,
        Class<T> clazz) {/*  w w  w. jav  a2 s. c  om*/
    com.mongodb.client.MongoCollection<T> col = jongo.getCollection(collectionName, clazz);
    col.drop();
    return col;
}

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From source file:org.jongo.use_native.NativeTestBase.java

License:Apache License

protected com.mongodb.client.MongoCollection<Bson> createNativeCollection(String collectionName) {
    com.mongodb.client.MongoCollection<Bson> col = jongo.getCollection(collectionName);
    col.drop();
    return col;//from  w ww .j av  a  2  s . c om
}

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From source file:org.nuxeo.directory.mongodb.MongoDBDirectory.java

License:Apache License

@Override
public Session getSession() throws DirectoryException {

    SchemaManager schemaManager = Framework.getService(SchemaManager.class);
    Schema schema = schemaManager.getSchema(getSchema());
    if (schema == null) {
        throw new DirectoryException(getSchema() + " is not a registered schema");
    }/* w ww.  j a  va 2 s . c  o m*/
    schemaFieldMap = new LinkedHashMap<>();
    schema.getFields().forEach(f -> schemaFieldMap.put(f.getName().getLocalName(), f));

    MongoDBSession session = new MongoDBSession(this);
    addSession(session);

    // Initialize counters collection if autoincrement enabled
    if (descriptor.isAutoincrementIdField() && !session.hasCollection(countersCollectionName)) {
        Map<String, Object> seq = new HashMap<>();
        seq.put(MONGODB_ID, getName());
        seq.put(MONGODB_SEQ, 0L);
        session.getCollection(countersCollectionName).insertOne(MongoDBSerializationHelper.fieldMapToBson(seq));
    }

    if (!initialized) {
        String policy = descriptor.getCreateTablePolicy();
        MongoCollection collection = session.getCollection(getName());
        boolean dropCollection = false;
        boolean loadData = false;

        switch (policy) {
        case CREATE_TABLE_POLICY_ALWAYS:
            dropCollection = true;
            loadData = true;
            break;
        case CREATE_TABLE_POLICY_ON_MISSING_COLUMNS:
            if (session.hasCollection(getName())) {
                long totalEntries = collection.count();
                boolean missingColumns = schema.getFields().stream().map(f -> f.getName().getLocalName())
                        .anyMatch(fname -> collection.count(Filters.exists(fname, false)) == totalEntries);
                if (missingColumns) {
                    dropCollection = true;
                    loadData = true;
                }
            } else {
                loadData = true;
            }
            break;
        default:
            if (!session.hasCollection(getName())) {
                loadData = true;
            }
            break;
        }
        if (dropCollection) {
            collection.drop();
        }
        if (loadData) {
            loadData(schema, session);
        }
        initialized = true;
    }
    return session;
}

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From source file:org.restheart.db.CollectionDAO.java

License:Open Source License

/**
 * Deletes a collection.//from   w  w  w  .jav a 2  s  .com
 *
 * @param dbName the database name of the collection
 * @param collName the collection name
 * @param requestEtag the entity tag. must match to allow actual write
 * (otherwise http error code is returned)
 * @return the HttpStatus code to set in the http response
 */
OperationResult deleteCollection(final String dbName, final String collName, final String requestEtag,
        final boolean checkEtag) {
    MongoDatabase mdb = client.getDatabase(dbName);
    MongoCollection<Document> mcoll = mdb.getCollection("_properties");

    if (checkEtag) {
        Document properties = mcoll.find(eq("_id", "_properties.".concat(collName)))
                .projection(FIELDS_TO_RETURN).first();

        if (properties != null) {
            Object oldEtag = properties.get("_etag");

            if (oldEtag != null) {
                if (requestEtag == null) {
                    return new OperationResult(HttpStatus.SC_CONFLICT, oldEtag);
                } else if (!Objects.equals(oldEtag.toString(), requestEtag)) {
                    return new OperationResult(HttpStatus.SC_PRECONDITION_FAILED, oldEtag);
                }
            }
        }
    }

    MongoCollection<Document> collToDelete = mdb.getCollection(collName);
    collToDelete.drop();
    mcoll.deleteOne(eq("_id", "_properties.".concat(collName)));
    return new OperationResult(HttpStatus.SC_NO_CONTENT);
}

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From source file:rapture.lock.mongodb.MongoLockHandler2.java

License:Open Source License

@Override
public Boolean forceReleaseLock(String lockName) {
    MongoCollection<Document> coll = getLockCollection(lockName);
    if (coll != null) {
        coll.drop();
    }/*from www  . j  a v  a 2s.  c  o m*/
    return true;
}

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From source file:rapture.series.mongo.MongoSeriesStore.java

License:Open Source License

@Override
public void drop() {
    MongoCollection<Document> collection = getCollection(null);
    collection.drop();
    keyCache.invalidateAll();
}

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From source file:rmteles.learning.mongodb.examples.week2.spark.HelloWorldMongoDBSparkFreemarkerStyle.java

License:Apache License

public static void main(String[] args) {
    final Configuration configuration = new Configuration();
    configuration.setClassForTemplateLoading(HelloWorldMongoDBSparkFreemarkerStyle.class, "/freemarker");

    MongoClient client = new MongoClient(new ServerAddress("localhost", 27017));

    MongoDatabase database = client.getDatabase("course");
    final MongoCollection<Document> collection = database.getCollection("hello");
    collection.drop();

    collection.insertOne(new Document("name", "MongoDB"));

    Spark.get("/", (request, response) -> {
        StringWriter writer = new StringWriter();
        try {/*from www . j a  v  a  2s . c om*/
            Template helloTemplate = configuration.getTemplate("hello.ftl");

            Document document = collection.find().first();

            helloTemplate.process(document, writer);
        } catch (Exception e) {
            Spark.halt(500);
            e.printStackTrace();
        }
        return writer;
    });
}

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From source file:tour.ClientSideEncryptionAutoEncryptionSettingsTour.java

License:Apache License

/**
 * Run this main method to see the output of this quick example.
 *
 * Requires the mongodb-crypt library in the class path and mongocryptd on the system path.
 *
 * @param args ignored args//from w  w w. j av a  2  s  . c o m
 */
public static void main(final String[] args) {

    // This would have to be the same master key as was used to create the encryption key
    final byte[] localMasterKey = new byte[96];
    new SecureRandom().nextBytes(localMasterKey);

    Map<String, Map<String, Object>> kmsProviders = new HashMap<String, Map<String, Object>>() {
        {
            put("local", new HashMap<String, Object>() {
                {
                    put("key", localMasterKey);
                }
            });
        }
    };

    String keyVaultNamespace = "admin.datakeys";
    ClientEncryptionSettings clientEncryptionSettings = ClientEncryptionSettings.builder()
            .keyVaultMongoClientSettings(MongoClientSettings.builder()
                    .applyConnectionString(new ConnectionString("mongodb://localhost")).build())
            .keyVaultNamespace(keyVaultNamespace).kmsProviders(kmsProviders).build();

    ClientEncryption clientEncryption = ClientEncryptions.create(clientEncryptionSettings);
    BsonBinary dataKeyId = clientEncryption.createDataKey("local", new DataKeyOptions());
    final String base64DataKeyId = Base64.getEncoder().encodeToString(dataKeyId.getData());

    final String dbName = "test";
    final String collName = "coll";
    AutoEncryptionSettings autoEncryptionSettings = AutoEncryptionSettings.builder()
            .keyVaultNamespace(keyVaultNamespace).kmsProviders(kmsProviders)
            .schemaMap(new HashMap<String, BsonDocument>() {
                {
                    put(dbName + "." + collName,
                            // Need a schema that references the new data key
                            BsonDocument.parse("{" + "  properties: {" + "    encryptedField: {"
                                    + "      encrypt: {" + "        keyId: [{" + "          \"$binary\": {"
                                    + "            \"base64\": \"" + base64DataKeyId + "\","
                                    + "            \"subType\": \"04\"" + "          }" + "        }],"
                                    + "        bsonType: \"string\","
                                    + "        algorithm: \"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic\""
                                    + "      }" + "    }" + "  }," + "  \"bsonType\": \"object\"" + "}"));
                }
            }).build();

    MongoClientSettings clientSettings = MongoClientSettings.builder()
            .autoEncryptionSettings(autoEncryptionSettings).build();

    MongoClient mongoClient = MongoClients.create(clientSettings);
    MongoCollection<Document> collection = mongoClient.getDatabase("test").getCollection("coll");
    collection.drop(); // Clear old data

    collection.insertOne(new Document("encryptedField", "123456789"));

    System.out.println(collection.find().first().toJson());

    // release resources
    mongoClient.close();
}

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From source file:tour.ClientSideEncryptionSimpleTour.java

License:Apache License

/**
 * Run this main method to see the output of this quick example.
 *
 * Requires the mongodb-crypt library in the class path and mongocryptd on the system path.
 * Assumes the schema has already been created in MongoDB.
 *
 * @param args ignored args//from  www.ja va 2s .  c om
 */
public static void main(final String[] args) {

    // This would have to be the same master key as was used to create the encryption key
    final byte[] localMasterKey = new byte[96];
    new SecureRandom().nextBytes(localMasterKey);

    Map<String, Map<String, Object>> kmsProviders = new HashMap<String, Map<String, Object>>() {
        {
            put("local", new HashMap<String, Object>() {
                {
                    put("key", localMasterKey);
                }
            });
        }
    };

    String keyVaultNamespace = "admin.datakeys";

    AutoEncryptionSettings autoEncryptionSettings = AutoEncryptionSettings.builder()
            .keyVaultNamespace(keyVaultNamespace).kmsProviders(kmsProviders).build();

    MongoClientSettings clientSettings = MongoClientSettings.builder()
            .autoEncryptionSettings(autoEncryptionSettings).build();

    MongoClient mongoClient = MongoClients.create(clientSettings);
    MongoCollection<Document> collection = mongoClient.getDatabase("test").getCollection("coll");
    collection.drop(); // Clear old data

    collection.insertOne(new Document("encryptedField", "123456789"));

    System.out.println(collection.find().first().toJson());

    // release resources
    mongoClient.close();
}

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From source file:tour.Decimal128QuickTour.java

License:Apache License

/**
 * Run this main method to see the output of this quick example.
 *
 * @param args takes an optional single argument for the connection string
 *//*from www  .  j a  v  a 2  s.  c o m*/
public static void main(final String[] args) {
    MongoClient mongoClient;

    if (args.length == 0) {
        // connect to the local database server
        mongoClient = new MongoClient();
    } else {
        mongoClient = new MongoClient(new MongoClientURI(args[0]));
    }

    // get handle to "mydb" database
    MongoDatabase database = mongoClient.getDatabase("mydb");

    // get a handle to the "test" collection
    MongoCollection<Document> collection = database.getCollection("test");

    // drop all the data in it
    collection.drop();

    // make a document and insert it
    Document doc = new Document("name", "MongoDB").append("amount1", Decimal128.parse(".10"))
            .append("amount2", new Decimal128(42L)).append("amount3", new Decimal128(new BigDecimal(".200")));

    collection.insertOne(doc);

    Document first = collection.find().filter(Filters.eq("amount1", new Decimal128(new BigDecimal(".10"))))
            .first();

    Decimal128 amount3 = (Decimal128) first.get("amount3");
    BigDecimal amount2AsBigDecimal = amount3.bigDecimalValue();

    System.out.println(amount3.toString());
    System.out.println(amount2AsBigDecimal.toString());

}

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