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How to use API keys for Google cloud Translate API

I am trying to use Google cloud translate API in Java. I have signed up free trial version and enable translate API project from google cloud console. Also I have API key with me.
I referred to API usage reference created java maven project included dependency of google-cloud-translate. Its downloaded also as a dependency. In java class file I am using same code as given the link but its giving me below error.
I have not used API keys anywhere as I don't know where to use it. I think that's the problem but don't know how to pass API keys for authentication?
So I missed step "gcloud beta auth application-default login" in the link
as running it on command line doesn't work.
I have java project in eclipse and I am using "Run As"-> "Java application" to run it.
Exception in thread "main" com.google.cloud.translate.TranslateException: connect timed out
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:63)
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:145)
at com.google.cloud.translate.TranslateImpl$4.call(TranslateImpl.java:113)
at com.google.cloud.translate.TranslateImpl$4.call(TranslateImpl.java:110)
at com.google.cloud.RetryHelper.doRetry(RetryHelper.java:179)
at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:244)
at com.google.cloud.translate.TranslateImpl.translate(TranslateImpl.java:110)
at com.google.cloud.translate.TranslateImpl.translate(TranslateImpl.java:124)
at com.translate.main.Translator.main(Translator.java:83)
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:656)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)
at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:93)
at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:972)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:125)
... 7 more

Couple of things that helped me out:
Used my api key as below:
Translate translate = TranslateOptions.newBuilder().
setApiKey((String)PropertyLoader.prop.get("GOOGLE_API_KEY")).
build().getService();
I was running the code behind corporate proxy(silly me). I added below lines(a static initializer) to my java code and bingo !!!
static {
System.setProperty("http.proxyHost", HTTP_PROXY_HOST);
System.setProperty("http.proxyPort", HTTP_PROXY_PORT);
System.setProperty("https.proxyHost", HTTPS_PROXY_HOST);
System.setProperty("https.proxyPort", HTTPS_PROXY_PORT);
}
where HTTP_PROXY_HOST and others are defined constants for my company...

Exception in monitor thread while connecting to server localhost:27017 while accessing MongoDB with Java

I have the following exception when running Java app for MongoDB:
[localhost:27017] org.mongodb.driver.cluster : Exception in monitor thread while connecting to server localhost:27017 while accessing MongoDB with Java
Call stack is follows:
com.mongodb.MongoSocketOpenException: Exception opening socket
at com.mongodb.connection.SocketStream.open(SocketStream.java:63) ~[mongodb-driver-core-3.0.4.jar:na]
at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:114) ~[mongodb-driver-core-3.0.4.jar:na]
at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:127) ~[mongodb-driver-core-3.0.4.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_45]
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_45]
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) ~[na:1.8.0_45]
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_45]
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_45]
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_45]
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_45]
at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_45]
at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:50) ~[mongodb-driver-core-3.0.4.jar:na]
at com.mongodb.connection.SocketStream.open(SocketStream.java:58) ~[mongodb-driver-core-3.0.4.jar:na]
... 3 common frames omitted
Neither of these names belong to my application. Also I have NO MONGODB server on local host. I am using remote host and setting it later. An exception occurs BEFORE any of my statements concerning Mongo.
UPDATE
This is probably some Spring provided beans accessing Mongo. How to disable them?
My config contains following dependencies:
dependencies {
compile('javax.media:jai_core:1.1.3')
//compile('jai_core:1.1.3')
// compile('org.springframework.boot:spring-boot-starter-data-mongodb')
compile('org.mongodb:mongodb-driver:3.0.4')
compile('org.mongodb:bson:3.0.4')
compile('org.geotools:gt-api:14.2')
compile('org.geotools:gt-shapefile:14.2')
compile('org.geotools:gt-geometry:14.2')
compile('org.geotools:gt-referencing:14.2')
compile('org.geotools:gt-geojson:14.2')
compile('org.geotools:gt-mongodb:14.2')
compile('org.springframework.boot:spring-boot-starter-web')
providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
i.e. I have removed org.springframework.boot:spring-boot-starter-data-mongodb and was thinking will use Mongo myself...
UPDATE2
I found related question: How to disable spring-data-mongodb autoconfiguration in spring-boot

I was to add exclusion annotation to my main annotated class,
i.e. instead of
#SpringBootApplication
I should have
#SpringBootApplication
#EnableAutoConfiguration(exclude={MongoAutoConfiguration.class})

Try adding
spring.data.mongodb.host=hostIpOnWhichMongoIsRunning
spring.data.mongodb.port=27017
into application.properties.
If Mongo is not running on localhost, this should fix the issue.

My IDEA suggested that I do this.
#SpringBootApplication(exclude = {MongoAutoConfiguration.class})

I can't say for sure. It's kind of not enough information question.
I can say that: Mongo driver by default tries to connect to the local host.
Probably you haven't specified the Mongo host/port.
So you'll have to configure the MongoDB host/port/credentials (if you have those).
Maybe it's network related issue or firewall (try to connect to MongoDB from your machine directly with cli / even running a basic program that uses only mongo driver).
From the stacktrace I don't see any usage of Spring, so more information is required to say for sure.
In general you can analyze the dependencies in Gradle by using gradle dependencies command (see here).

I had the same exception when trying to connect MongoDB with spring-boot.
In my case, I forgot to add the #Configuration annotation in the MongoDB Configuration class I created.
After adding this it worked for me.

I changed the scope(It was Test before)
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<scope>4.2.3</scope>
</dependency>

In my case the mistake was not to have authorized my development environment. So I allowed connections from any IP (not a good idea for prod env) by adding the rule 0.0.0.0/0. You add this rule from the Network Access section from the atlas dashboard.

In my case mongoDB internal port was not mapped to external. Using command docker run -p 27017:27017 -d mongo resolved my issue.

check your mongo with cmd "mongo" if mongo is deathed follow step
1: open search windown
2: search "services"
3: find MongoDB Service and right click then click start on popup

It seems your server is not running.
Also if it running, it is doing so on a different port.

proxy trouble on eclipse with https

I'm having trouble sending https requests from eclipse.When I run this code it works fine.
public class HttpConnectionTest extends TestCase{
#Test
public void testConnection() throws HttpException, IOException {
int statusCode = new HttpClient().executeMethod(new GetMethod("http://www.google.com"));
assertTrue(statusCode == HttpStatus.SC_OK);
}
}
But when i run the same code for "https://www.google.com", I get the exception below;
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:451)
at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:140)
at org.apache.commons.httpclient.protocol.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:81)
at org.apache.commons.httpclient.protocol.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:126)
at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:324)
at adcWeb.HttpConnectionTest.testConnection(HttpConnectionTest.java:26)
I'm connecting to internet via proxy. My network setting are like this; I saw some people said to disable socks but eclipse doesn't allow me uncheck socks option (I'm using eclipse luna)

I believe that the proxy you configure in the eclipse settings are for plugins and IDE related stuff..
You will have to setup the proxy in your code at runtime like so :
How do I make HttpURLConnection use a proxy?

Caused by: java.net.ConnectException: Connection refused Cloudify CLI

I have just downloaded cloudify2.6.2. When running the CLI of the cloudify i can not run the REST API as i get this error
Starting Non-Interactive Shell
>>> connect http://$localhost:8100
http://$localhost:8100/service/testrest Rest api error: Operation failed. org.apache.http.conn.HttpHostConnectException: Connection to http://$localhost:8100 refused
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at org.cloudifysource.restclient.GSRestClient.executeHttpMethod(GSRestClient.java:371)
at org.cloudifysource.restclient.GSRestClient.get(GSRestClient.java:278)
at org.cloudifysource.restclient.GSRestClient.get(GSRestClient.java:265)
at org.cloudifysource.shell.rest.RestAdminFacade.doConnect(RestAdminFacade.java:87)
at org.cloudifysource.shell.AbstractAdminFacade.connect(AbstractAdminFacade.java:55)
at org.cloudifysource.shell.commands.Connect.doExecute(Connect.java:62)
at org.cloudifysource.shell.commands.AbstractGSCommand.execute(AbstractGSCommand.java:99)
at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)
at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)
at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)
at org.apache.karaf.shell.console.jline.Console.run(Console.java:172)
at org.apache.karaf.shell.console.Main.run(Main.java:191)
at org.apache.karaf.shell.console.Main.run(Main.java:89)
at org.cloudifysource.shell.GigaShellMain.main(GigaShellMain.java:126)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:127)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
... 24 more
Communication Error accessing http://$localhost:8100/service/testrest. Reason: Connection to http://$localhost:8100 refused
I do not have any firewall and i also use jdk7.
I need some explanation on this.

Have you bootstrapped Cloudify on your machine by using bootstrap-localcloud? Also, it seems you're using $localhost instead of just localhost.

There are some things to note here.
First for the REST service to work it has to be up, so a bootstrapping procedure has to be done, THEN do the connect action.
In my situation it was something wrong in the setenv.sh located at ~/gigaspaces/bin/setenv.sh.
There were two declarations that was not supposed to be there.
One for the NIC and one for the LOOKUPLOCATOR, so i comment out them and i finally did bootstrap the cloud.
Cloudify Version 2.6.0
Danos

Java RMI UnmarshalException and AWS EC2 Server

I'm trying to implement the RMI Compute PI tutorial found on the Sun/Oracle website here. The server is located on an Amazon windows EC2 Server. The client is located on my personal computer at home. Just to keep things simple, I have disabled the firewall on the server and open all the port on the EC2 security group. I can ping the machine, have access to files, etc... My aim is just to have a basic RMI program worked on AWS. I will oversee security issues later.
Lauching the server is not a problem. And it's correctly bound to the RMI Registry. I'm using the following command to launch it :
java -Djava.security.manager -Djava.security.policy=C:\AWSTest\security.policy -Djava.rmi.server.codebase=file:/C:/AWS/Sources/sun-rmi-tutorial-server/bin/ file:/C:/AWS/Sources/sun-rmi-tutorial-common/bin/ -classpath C:\AWS\Sources\sun-rmi-tutorial-server\bin;C:\AWS\Sources\sun-rmi-tutorial-common\bin engine.ComputeEngine ec2-XX-XX-XX-XXX.ap-southeast-1.compute.amazonaws.com
The RMI registry is started on the server side.
I have declared a new security manager on the server side System.setSecurityManager(new RMISecurityManager())
I'm using a security.policy file where I'm granted all permission.
When I'm launching the client side, on my local computer, I'm ending with an UnmarshalException:
ComputePi exception: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: engine.ComputeEngine_Stub
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: engine.ComputeEngine_Stub
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:101)
at client.ComputePi.main(ComputePi.java:14)
Caused by: java.lang.ClassNotFoundException: engine.ComputeEngine_Stub
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:453)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:184)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:216)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1593)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
... 3 more
Do you have any suggestions of what is wrong ? Why can't the client find the correct Stub ? I'm using Eclipse Juno, Genady RMI Plugin and Java 1.7.0_07.
Thanks for your help
EDIT 1 :
The Java workspace is organized around 3 projects : the Client side, the Server Side and a Common project where both the server and the client share classes.
I can read the remote registry from my local computer. The RMI plugin can connect remotely to the server and inspect the registry.
If instead of making 3 projects I put all the classes under the same project, everything is working fine... But I notice that no stubs where generated (or needed).
If, on the client side, I'm putting a reference in the classpath to the server classes (everything being build locally), i have a connection timeout error instead of the unmarshalling error.
ComputePi exception: Connection refused to host: XX.XXX.XX.XX; nested exception is:
java.net.ConnectException: Connection timed out: connect
java.rmi.ConnectException: Connection refused to host: XX.XXX.XXX; nested exception is:
java.net.ConnectException: Connection timed out: connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:128)
at engine.ComputeEngine_Stub.executeTask(ComputeEngine_Stub.java:35)
at client.ComputePi.main(ComputePi.java:19)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.(Socket.java:425)
at java.net.Socket.(Socket.java:208)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
... 5 more

You haven't deployed the stub class to the client.