/*
* Copyright 2015 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tour;
import com.mongodb.Block;
import com.mongodb.async.SingleResultCallback;
import com.mongodb.async.client.MongoClient;
import com.mongodb.async.client.MongoClients;
import com.mongodb.async.client.MongoCollection;
import com.mongodb.async.client.MongoDatabase;
import com.mongodb.client.model.CreateCollectionOptions;
import com.mongodb.client.model.Indexes;
import com.mongodb.client.model.TextSearchOptions;
import org.bson.Document;
import org.bson.conversions.Bson;
import java.util.concurrent.CountDownLatch;
import static com.mongodb.client.model.Filters.text;
/**
* The QuickTourAdmin code example see: https://mongodb.github.io/mongo-java-driver/3.0/getting-started
*/
public class QuickTourAdmin {
/**
* Run this main method to see the output of this quick example.
*
* @param args takes an optional single argument for the connection string
* @throws InterruptedException if a latch is interrupted
*/
public static void main(final String[] args) throws InterruptedException {
MongoClient mongoClient;
if (args.length == 0) {
// connect to the local database server
mongoClient = MongoClients.create();
} else {
mongoClient = MongoClients.create(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");
final CountDownLatch dropLatch = new CountDownLatch(1);
collection.drop(new SingleResultCallback<Void>() {
@Override
public void onResult(final Void result, final Throwable t) {
dropLatch.countDown();
}
});
dropLatch.await();
// getting a list of databases
SingleResultCallback<Void> callbackWhenFinished = new SingleResultCallback<Void>() {
@Override
public void onResult(final Void result, final Throwable t) {
System.out.println("Operation Finished!");
}
};
mongoClient.listDatabaseNames().forEach(new Block<String>() {
@Override
public void apply(final String s) {
System.out.println(s);
}
}, callbackWhenFinished);
// drop a database
mongoClient.getDatabase("databaseToBeDropped").drop(callbackWhenFinished);
// create a collection
database.createCollection("cappedCollection", new CreateCollectionOptions().capped(true).sizeInBytes(0x100000),
callbackWhenFinished);
database.listCollectionNames().forEach(new Block<String>() {
@Override
public void apply(final String databaseName) {
System.out.println(databaseName);
}
}, callbackWhenFinished);
// drop a collection:
collection.drop(callbackWhenFinished);
// create an ascending index on the "i" field
collection.createIndex(Indexes.ascending("i"), new SingleResultCallback<String>() {
@Override
public void onResult(final String result, final Throwable t) {
System.out.println("Operation finished");
}
});
// list the indexes on the collection
Block<Document> printDocumentBlock = new Block<Document>() {
@Override
public void apply(final Document document) {
System.out.println(document.toJson());
}
};
collection.listIndexes().forEach(printDocumentBlock, callbackWhenFinished);
// create a text index on the "content" field
collection.createIndex(Indexes.text("content"), new SingleResultCallback<String>() {
@Override
public void onResult(final String result, final Throwable t) {
System.out.println("Operation finished");
}
});
collection.insertOne(new Document("_id", 0).append("content", "textual content"), callbackWhenFinished);
collection.insertOne(new Document("_id", 1).append("content", "additional content"), callbackWhenFinished);
collection.insertOne(new Document("_id", 2).append("content", "irrelevant content"), callbackWhenFinished);
// Find using the text index
collection.count(text("textual content -irrelevant"), new SingleResultCallback<Long>() {
@Override
public void onResult(final Long matchCount, final Throwable t) {
System.out.println("Text search matches: " + matchCount);
}
});
// Find using the $language operator
Bson textSearch = text("textual content -irrelevant", new TextSearchOptions().language("english"));
collection.count(textSearch, new SingleResultCallback<Long>() {
@Override
public void onResult(final Long matchCount, final Throwable t) {
System.out.println("Text search matches (english): " + matchCount);
}
});
// Find the highest scoring match
Document projection = new Document("score", new Document("$meta", "textScore"));
collection.find(textSearch).projection(projection).first(new SingleResultCallback<Document>() {
@Override
public void onResult(final Document highest, final Throwable t) {
System.out.println("Highest scoring document: " + highest.toJson());
}
});
// Run a command
database.runCommand(new Document("buildInfo", 1), new SingleResultCallback<Document>() {
@Override
public void onResult(final Document buildInfo, final Throwable t) {
System.out.println(buildInfo);
}
});
// release resources
database.drop(callbackWhenFinished);
mongoClient.close();
}
}