package io.vertx.example.rxjava.database.mongo;
import io.vertx.core.json.JsonObject;
import io.vertx.example.util.Runner;
import io.vertx.rxjava.core.AbstractVerticle;
import io.vertx.rxjava.ext.mongo.MongoClient;
import rx.Observable;
/*
* @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
*/
public class Client extends AbstractVerticle {
private MongoClient mongo;
// Convenience method so you can run it in your IDE
public static void main(String[] args) {
Runner.runExample(Client.class);
}
@Override
public void start() throws Exception {
JsonObject config = new JsonObject()
.put("connection_string", "mongodb://localhost:27018")
.put("db_name", "my_DB");
// Deploy an embedded mongo database so we can test against that
vertx.deployVerticle("service:io.vertx.vertx-mongo-embedded-db", db -> {
if (db.succeeded()) {
// Create the client
mongo = MongoClient.createShared(vertx, config);
insertAndFind();
} else {
System.out.println("Could not start mongo embedded");
db.cause().printStackTrace();
}
});
}
private void insertAndFind() {
// Documents to insert
Observable<JsonObject> documents = Observable.just(
new JsonObject().put("username", "temporalfox").put("firstname", "Julien").put("password", "bilto"),
new JsonObject().put("username", "purplefox").put("firstname", "Tim").put("password", "wibble")
);
mongo.rxCreateCollection("users").flatMapObservable(v -> {
// After collection is created we insert each document
return documents.flatMap(doc -> mongo.rxInsert("users", doc).toObservable());
}).doOnNext(id -> {
System.out.println("Inserted document " + id);
}).last().toSingle().flatMap(id -> {
// Everything has been inserted now we can query mongo
System.out.println("Insertions done");
return mongo.rxFind("users", new JsonObject());
}).subscribe(results -> {
System.out.println("Results " + results);
}, error -> {
System.out.println("Err");
error.printStackTrace();
});
}
}