Example usage for com.mongodb.client MongoDatabase runCommand

Introduction

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

Prototype

Document runCommand(Bson command);

Source Link

Document

Executes the given command in the context of the current database with a read preference of ReadPreference#primary() .

Usage

From source file:mongodb.QuickTourAdmin.java

License:Apache License

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

    if (args.length == 0) {
        // connect to the specified database server
        mongoClient = new MongoClient("10.9.17.105", 27017);
    } else {
        mongoClient = new MongoClient(new MongoClientURI(args[0]));
    }

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

    database.drop();

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

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

    // getting a list of databases
    for (String name : mongoClient.listDatabaseNames()) {
        System.out.println(name);
    }

    // drop a database
    mongoClient.getDatabase("databaseToBeDropped").drop();

    // create a collection
    database.createCollection("cappedCollection",
            new CreateCollectionOptions().capped(true).sizeInBytes(0x100000));

    for (String name : database.listCollectionNames()) {
        System.out.println(name);
    }

    // drop a collection:
    collection.drop();

    // create an ascending index on the "i" field
    // 1 ascending or -1 for descending
    collection.createIndex(new Document("i", 1));

    // list the indexes on the collection
    for (final Document index : collection.listIndexes()) {
        System.out.println(index.toJson());
    }

    // create a text index on the "content" field
    // text indexes to support text search of string content
    collection.createIndex(new Document("content", "text"));

    collection.insertOne(new Document("_id", 0).append("content", "textual content"));
    collection.insertOne(new Document("_id", 1).append("content", "additional content"));
    collection.insertOne(new Document("_id", 2).append("content", "irrelevant content"));

    // Find using the text index
    long matchCount = collection.count(text("textual content -irrelevant"));
    System.out.println("Text search matches: " + matchCount);

    // Find using the $language operator
    Bson textSearch = text("textual content -irrelevant", "english");
    matchCount = collection.count(textSearch);
    System.out.println("Text search matches (english): " + matchCount);

    // Find the highest scoring match
    Document projection = new Document("score", new Document("$meta", "textScore"));
    Document myDoc = collection.find(textSearch).projection(projection).first();
    System.out.println("Highest scoring document: " + myDoc.toJson());

    // Run a command
    Document buildInfo = database.runCommand(new Document("buildInfo", 1));
    System.out.println(buildInfo);

    // release resources
    database.drop();
    mongoClient.close();
}

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From source file:net.netzgut.integral.mongo.internal.services.MongoServiceImplementation.java

License:Apache License

@Override
public void capCollection(MongoDatabase db, String collectionName, long sizeInBytes) {
    final MongoIterable<String> result = db.listCollectionNames();
    final List<String> names = result.into(new ArrayList<>());

    if (names.contains(collectionName)) {
        final Document getStats = new Document("collStats", collectionName);
        final Document stats = db.runCommand(getStats);
        Object capped = stats.get("capped");
        final boolean isCapped = capped != null && capped.equals(1);
        if (isCapped == false) {
            final Document convertToCapped = new Document();
            convertToCapped.append("convertToCapped", collectionName);
            convertToCapped.append("size", sizeInBytes);
            db.runCommand(convertToCapped);

            // We need to create the index manually after conversion.
            // See red warning box: http://docs.mongodb.org/v2.2/reference/command/convertToCapped/#dbcmd.convertToCapped
            db.getCollection(collectionName).createIndex(new Document("_id", 1));
        }//w ww.  j  a  v  a2s . c o m
    } else {
        db.createCollection(collectionName,
                new CreateCollectionOptions().capped(true).sizeInBytes(sizeInBytes));
    }

}

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From source file:org.apache.drill.exec.store.mongo.MongoGroupScan.java

License:Apache License

private boolean isShardedCluster(MongoClient client) {
    MongoDatabase db = client.getDatabase(scanSpec.getDbName());
    String msg = db.runCommand(new Document("isMaster", 1)).getString("msg");
    return msg == null ? false : msg.equals("isdbgrid");
}

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From source file:org.apache.drill.exec.store.mongo.MongoGroupScan.java

License:Apache License

@SuppressWarnings("unchecked")
private Set<ServerAddress> getPreferredHosts(MongoClient client, List<String> hosts) {
    Set<ServerAddress> addressList = Sets.newHashSet();
    MongoDatabase db = client.getDatabase(scanSpec.getDbName());
    ReadPreference readPreference = client.getReadPreference();
    Document command = db.runCommand(new Document("isMaster", 1));

    final String primaryHost = command.getString("primary");
    final List<String> hostsList = (List<String>) command.get("hosts");

    switch (readPreference.getName().toUpperCase()) {
    case "PRIMARY":
    case "PRIMARYPREFERRED":
        if (primaryHost == null) {
            return null;
        }//www .j  av  a 2 s  .  c om
        addressList.add(new ServerAddress(primaryHost));
        return addressList;
    case "SECONDARY":
    case "SECONDARYPREFERRED":
        if (primaryHost == null || hostsList == null) {
            return null;
        }
        hostsList.remove(primaryHost);
        for (String host : hostsList) {
            addressList.add(new ServerAddress(host));
        }
        return addressList;
    case "NEAREST":
        if (hostsList == null) {
            return null;
        }
        for (String host : hostsList) {
            addressList.add(new ServerAddress(host));
        }
        return addressList;
    default:
        return null;
    }
}

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From source file:org.flywaydb.core.internal.dbsupport.MongoScript.java

License:Apache License

/**
 * Executes the MongoStatements found in this MongoScript against the database.
 *
 * @param mongoClient The MongoClient to use to execute this script.
 *///from   ww  w .j ava2 s .  c  o  m
public void execute(final MongoClient mongoClient) {
    MongoDatabase mongoDatabase = mongoClient.getDatabase(databaseName);
    for (MongoStatement mongoStatement : mongoStatements) {
        LOG.debug("Executing MONGO: " + mongoStatement);
        try {
            mongoDatabase.runCommand(Document.parse(mongoStatement.getJson()));
        } catch (JsonParseException jpe) {
            MongoException e = new MongoException("Cannot parse mongo command. " + jpe.getMessage());
            throw new FlywayMongoScriptException(resource, mongoStatement, e);
        } catch (MongoException e) {
            throw new FlywayMongoScriptException(resource, mongoStatement, e);
        }
    }
}

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From source file:org.netbeans.modules.mongodb.ui.explorer.CollectionNode.java

License:Open Source License

@Override
@SuppressWarnings("unchecked")
protected Sheet createSheet() {
    Sheet sheet = Sheet.createDefault();
    Sheet.Set set = Sheet.createPropertiesSet();
    MongoDatabase db = getLookup().lookup(MongoDatabase.class);
    BsonDocument commandDocument = new BsonDocument("collStats", new BsonString(collection.getName()));
    try {//  w  w  w  . ja v  a2  s .com
        Document result = db.runCommand(commandDocument);
        set.put(new LocalizedProperties(CollectionNode.class).fromDocument(result).toArray());
        sheet.put(set);
    } catch (MongoException ex) {
        if (MongoErrorCode.of(ex) != MongoErrorCode.Unauthorized) {
            DialogNotification.error(ex);
        }
    }
    return sheet;
}

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From source file:org.netbeans.modules.mongodb.ui.explorer.DBNode.java

License:Open Source License

@Override
protected Sheet createSheet() {
    Sheet sheet = Sheet.createDefault();
    Sheet.Set set = Sheet.createPropertiesSet();
    MongoDatabase db = getLookup().lookup(MongoDatabase.class);
    BsonDocument commandDocument = new BsonDocument("dbStats", new BsonInt32(1)).append("scale",
            new BsonInt32(1));
    try {//from  w ww .jav  a 2  s .  co  m
        Document result = db.runCommand(commandDocument);
        set.put(new LocalizedProperties(DBNode.class).fromDocument(result).toArray());
        sheet.put(set);
    } catch (MongoException ex) {
        if (MongoErrorCode.of(ex) != MongoErrorCode.Unauthorized) {
            DialogNotification.error(ex);
        }
    }
    return sheet;
}

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