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Tensorflow 2.0 & Java API

(note, I've resolved my problem and posted the code at the bottom)
I'm playing around with TensorFlow and the backend processing must take place in Java. I've taken one of the models from the https://developers.google.com/machine-learning/crash-course and saved it with tf.saved_model.save(my_model,"house_price_median_income") (using a docker container). I copied the model off and loaded it into Java (using the 2.0 stuff built from source because I'm on windows).
I can load the model and run it:
try (SavedModelBundle model = SavedModelBundle.load("./house_price_median_income", "serve")) {
try (Session session = model.session()) {
Session.Runner runner = session.runner();
float[][] in = new float[][]{ {2.1518f} } ;
Tensor<?> jack = Tensor.create(in);
runner.feed("serving_default_layer1_input", jack);
float[][] probabilities = runner.fetch("StatefulPartitionedCall").run().get(0).copyTo(new float[1][1]);
for (int i = 0; i < probabilities.length; ++i) {
System.out.println(String.format("-- Input #%d", i));
for (int j = 0; j < probabilities[i].length; ++j) {
System.out.println(String.format("Class %d - %f", i, probabilities[i][j]));
}
}
}
}
The above is hardcoded to an input and output but I want to be able to read the model and provide some information so the end-user can select the input and output, etc.
I can get the inputs and outputs with the python command: saved_model_cli show --dir ./house_price_median_income --all
What I want to do it get the inputs and outputs via Java so my code doesn't need to execute python script to get them. I can get operations via:
Graph graph = model.graph();
Iterator<Operation> itr = graph.operations();
while (itr.hasNext()) {
GraphOperation e = (GraphOperation)itr.next();
System.out.println(e);
And this outputs both the inputs and outputs as "operations" BUT how do I know that it is an input and\or an output? The python tool uses the SignatureDef but that doesn't seem to appear in the TensorFlow 2.0 java stuff at all. Am I missing something obvious or is it just missing from TensforFlow 2.0 Java library?
NOTE, I've sorted my issue with the answer help below. Here is my full bit of code in case somebody would like it in the future. Note this is TF 2.0 and uses the SNAPSHOT mentioned below. I make a few assumptions but it shows how to pull the input and output and then use them to run a model
import org.tensorflow.SavedModelBundle;
import org.tensorflow.Session;
import org.tensorflow.Tensor;
import org.tensorflow.exceptions.TensorFlowException;
import org.tensorflow.Session.Run;
import org.tensorflow.Graph;
import org.tensorflow.Operation;
import org.tensorflow.Output;
import org.tensorflow.GraphOperation;
import org.tensorflow.proto.framework.SignatureDef;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.tensorflow.proto.framework.MetaGraphDef;
import java.util.Map;
import org.tensorflow.proto.framework.TensorInfo;
import org.tensorflow.types.TFloat32;
import org.tensorflow.tools.Shape;
import java.nio.FloatBuffer;
import org.tensorflow.tools.buffer.DataBuffers;
import org.tensorflow.tools.ndarray.FloatNdArray;
import org.tensorflow.tools.ndarray.StdArrays;
import org.tensorflow.proto.framework.TensorInfo;
public class v2tensor {
public static void main(String[] args) {
try (SavedModelBundle savedModel = SavedModelBundle.load("./house_price_median_income", "serve")) {
SignatureDef modelInfo = savedModel.metaGraphDef().getSignatureDefMap().get("serving_default");
TensorInfo input1 = null;
TensorInfo output1 = null;
Map<String, TensorInfo> inputs = modelInfo.getInputsMap();
for(Map.Entry<String, TensorInfo> input : inputs.entrySet()) {
if (input1 == null) {
input1 = input.getValue();
System.out.println(input1.getName());
}
System.out.println(input);
}
Map<String, TensorInfo> outputs = modelInfo.getOutputsMap();
for(Map.Entry<String, TensorInfo> output : outputs.entrySet()) {
if (output1 == null) {
output1=output.getValue();
}
System.out.println(output);
}
try (Session session = savedModel.session()) {
Session.Runner runner = session.runner();
FloatNdArray matrix = StdArrays.ndCopyOf(new float[][]{ { 2.1518f } } );
try (Tensor<TFloat32> jack = TFloat32.tensorOf(matrix) ) {
runner.feed(input1.getName(), jack);
try ( Tensor<TFloat32> rezz = runner.fetch(output1.getName()).run().get(0).expect(TFloat32.DTYPE) ) {
TFloat32 data = rezz.data();
data.scalars().forEachIndexed((i, s) -> {
System.out.println(s.getFloat());
} );
}
}
}
} catch (TensorFlowException ex) {
ex.printStackTrace();
}
}
}

What you need to do is to read the SavedModelBundle metadata as a MetaGraphDef, from there you can retrieve input and output names from the SignatureDef, like in Python.
In TF Java 1.* (i.e. the client you are using in your example), the proto definitions are not available out-of-the-box from the tensorflow artifact, you need to add a dependency to org.tensorflow:proto as well and deserialize the result of SavedModelBundle.metaGraphDef() into a MetaGraphDef proto.
In TF Java 2.* (the new client actually only available as snapshots from here), the protos are present right away so you can simply call this line to retrieve the right SignatureDef:
savedModel.metaGraphDef().signatureDefMap.getValue("serving_default")

Evaluation failed because the thread is not suspended

users!
I have a problem with my Microsoft VS Code.
When i run my code with method
System.in.read()
i have a problem "Evaluation failed because the thread is not suspended."
P.S. When i run file using javac and java this code is work.
i also have problem with VS Code another problem
My code
import java.io.IOException;
public class example {
public static void main(String args[])
throws IOException {
char symbol;
int count = 0, count_space = 0;
do {
symbol = (char) System.in.read();
if (symbol == ' ') {
count_space += 1;
}
count += 1;
} while(symbol != '.');
System.out.println("Всего символов: " + count);
System.out.println("Из них пробелов: " + count_space);
}
}
Sorry for bad grammar.
Can you help me?

I'm a chinese student and i had the same problem. I found a solution in baidu.
The built-in debugging console of vscode does not support java input. So you need to modify the debug console in the debug configuration file (launch.json), just modify the console property from "internalConsole" to "integratedTerminal" or "externalTerminal".

How to get an Initial Contex from Wildfly 8

ADDED 7/23.
Many views: Not even a "that's dumb" question in response. Can anyone at least tell me why such an embarrassingly trivial question seems to have no answer anywhere.
Q:
--- Have Wildfly 8 running on local machine localhost:9990.
--- Have a Java program that need's Wildfly's IntialContext.
--- Every reference says use: "Context ctx = new InitialContext(env);"
--- Yet a week of searching turns up no set of properties that returns one.
And no example of a java program that gets one.
Does no one ever do this? Really need help
Original Msg Below
I know many people have asked how to get an Initial context from Wildfly 8. But I have yet to find a simple answer with a simple example.
Therefore, I hope someone can tell my why this doesn’t work.
I start Wildfly with standalone-full.xml
The three sections below have
A - Code summary of my test Class whose only purpose is to secure an Initial Context. (I only removed a lot of printing code that produced the next section.]
B - The Eclipse console output for a failure.
C - Cut and paste code. Just in case anyone can help me get this to work. I’d like to leave behind something the next new WF user can cut and past and run. The only difference from 1 above is that this version has all the static methods I used to format the output. NOTE: I know the comments I inserted about the less than sign sound dumb. BUT ... they are true.
A Code Summary
import java.util.Properties;
import javax.naming.CommunicationException;
import javax.naming.Context;
import javax.naming.InitialContext;
public class JmsTestGetJNDIContext {
//members
final private Properties env = new Properties() {
private static final long serialVersionUID = 1L;
{
/* These are Properties used by a standalone JavaClient to secure a WIldFly InitialContext()*/
put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
put(Context.PROVIDER_URL,"http-remoting://localhost:9990");
put(Context.SECURITY_PRINCIPAL,"userGLB");
put(Context.SECURITY_CREDENTIALS,"Open");
put("jboss.naming.client.ejb.context", true);
/*The above URL, ID and PW successfully open Wildfly's Admin Console*/
}
};
//constructor
private JmsTestGetJNDIContext (){
/*print "beg"*/
/*print "env"*/
try {
/*print "Requesting InitialContext"*/
Context ctx = new InitialContext(this.env);
/*print "JNDI Context: " + ctx)*/
/*print "end");
} catch (CommunicationException e) {
/* print "You forgot to start WildFly dummy!"*/
} catch (Exception e) {
/* print"caught: " + e.getClass().getName()*/
/*print e.getMessage()*/
/* "end")*/
}
static public void main (String[] args) {
/*print "beg"*/
JmsTestGetJNDIContext client = new JmsTestGetJNDIContext ();
/*print "end"*/
}
}
B - Console Output
JmsTestGetJNDIContext.main () beg
JmsTestGetJNDIContext.<init> () beg
JmsTestGetJNDIContext.<init> () These are Properties used to obtain IntialContext
Key: java.naming.provider.url
Value: http-remoting://localhost:9990
Key: java.naming.factory.initial
Value: org.jboss.naming.remote.client.InitialContextFactory
Key: jboss.naming.client.ejb.context
Value: true
Key: java.naming.security.principal
Value: userGLB
Key: java.naming.security.credentials
Value: Open
JmsTestGetJNDIContext.<init> () Requesting InitialContext
JmsTestGetJNDIContext.<init> () caught: javax.naming.NamingException
JmsTestGetJNDIContext.<init> () Failed to create remoting connection
JmsTestGetJNDIContext.<init> () end
JmsTestGetJNDIContext.main () end
Cut and Paste Code
package org.america3.gotest.xtra;
import java.util.Properties;
import javax.naming.CommunicationException;
import javax.naming.Context;
import javax.naming.InitialContext;
public class JmsTestGetJNDIContext {
//members
final private Properties env = new Properties() {
/**
* Properties used by a standalone JavaClient to secure
* a WIldFly InitialContext()*/
private static final long serialVersionUID = 1L;
{
put(Context.INITIAL_CONTEXT_FACTORY,"org.jboss.naming.remote.client.InitialContextFactory");
put(Context.PROVIDER_URL, "http-remoting://localhost:9990");
put(Context.SECURITY_PRINCIPAL, "userGLB");
put(Context.SECURITY_CREDENTIALS, "Open");
// The above URL, ID and PW successfully open Wildfly's Admin Console
put("jboss.naming.client.ejb.context", true);
}
};
//constructor
private JmsTestGetJNDIContext (){/*ignore*/String iAm = JmsTestGetJNDIContext.getIAm(" ", Thread.currentThread().getStackTrace());
P (iAm, "beg");
pProps(iAm, env);
try {
P (sp + iAm, "Requesting InitialContext");
Context ctx = new InitialContext(this.env);
P (sp + iAm, "JNDI Context: " + ctx);
P (sp + iAm, "end");
} catch (CommunicationException e) {
P (sp + iAm, "You forgot to start WildFly dummy!");
} catch (Exception e) {
P (sp + iAm, "caught: " + e.getClass().getName());
P (sp + iAm, e.getMessage());
P (iAm, "end");
}
}
static public void main (String[] args) {/*ignore*/String iAm = JmsTestGetJNDIContext.getIAm("",Thread.currentThread().getStackTrace());
P (iAm, "beg");
JmsTestGetJNDIContext client = new JmsTestGetJNDIContext ();
P (iAm , "end");
}
/*The remaining static methods are just to facilitate printing.
* They are normally in a Untility package I add to my projects.
* I put them here so this code would run for anyone.*/
static private void pProps (String leader, Properties p) {
StringBuffer sb = new StringBuffer ();
String s = JmsTestGetJNDIContext.padRight(leader, 45, ' ');
s = " " + s + "These are Properties used to obtain IntialContext"+"\n";
sb.append(s);
String skip = "";
for (Object key: p.keySet()) {
sb.append(skip + " " + JmsTestGetJNDIContext.padRight("\""
+ (String)key + "\"", 40, ' ')
+ " \"" + p.get(key) + "\"");
skip = "\n";
}
System.out.println(sb);
}
static private void P (String s, String s2) {
System.out.println(s + s2);
}
static public String getClassMethodName (StackTraceElement[] elements) {
String className = null;
for (int i = 0; i * elements.length; i++]i ) {
/* You need to type in a less than sign for the '*'
* because when I do, the editor will not show any code
* that comes after it.
* I have no idea why, but I've spent over an hour trying,
* and every time I type a less than sign all the following
* code dissappears!*/
className = elements[i].getClassName ();
if (className.startsWith ("org.america3")) {
int end = className.lastIndexOf ('.');
return className.substring (end + 1) + "." + elements[i].getMethodName ();
} else {
continue;
}
}
return "no project method found in elements beginning with org.america3" ;
}
static private String getIAm (String indent, StackTraceElement[] elements) {
StringBuffer sb = new StringBuffer ();
sb.append(JmsTestGetJNDIContext.getClassMethodName(elements));
sb.append(" ()");
return indent + JmsTestGetJNDIContext.padRight (sb.toString(), 45, ' ') ;
}
static public String padRight(String s, int width, char c){
if (s == null) return "Null String";
if(s.length() ** width){
/* You need to type in a greater than or equal sign for
* the '**'see above.*/
return s;
} else {
StringBuffer sb = new StringBuffer();
sb.append (s);
for(int i = 0; i *** (width - s.length()); i++){
/*You need to type in a less than sign the '***'. Again see above*/
sb.append(c);
}
return sb.toString();
}
}
static public String sp = " ";
}

A while ago I also struggled with remote EJBs in my CLI application. I excavated a small example project that I wrote then. It gets an InitialContext and calls a remote EJB named AddBrackets:
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import de.dnb.test.ejb.AddBrackets;
public final class Application {
public static void main(String[] args) throws NamingException {
final Properties jndiProperties = initJndiProperties();
final AddBrackets addBrackets = getEjb(jndiProperties);
System.out.println(addBrackets.processText("Hello World"));
}
private static Properties initJndiProperties() {
final Properties jndiProperties = new Properties();
jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jboss.naming.remote.client.InitialContextFactory");
jndiProperties.put("jboss.naming.client.ejb.context", true);
jndiProperties.put(Context.PROVIDER_URL, "http-remoting://localhost:8080/");
//jndiProperties.put(Context.SECURITY_PRINCIPAL, "test");
//jndiProperties.put(Context.SECURITY_CREDENTIALS, "test");
return jndiProperties;
}
private static AddBrackets getEjb(Properties jndiProps)
throws NamingException {
final Context jndiContext = new InitialContext(jndiProps);
final String interfaceName = AddBrackets.class.getName();
return (AddBrackets) jndiContext.lookup(
"ejbtest-app-1.0-SNAPSHOT/ejbtest-ejb-1.0-SNAPSHOT/AddBracketsBean!"
+ interfaceName);
}
}
I built this program as a Maven project which had a dependency on
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-ejb-client-bom</artifactId>
<version>8.2.1.Final</version>
<type>pom</type>
</dependency>
This dependency brings in Wildfly's remote client EJB implementation and adds the following jars to the class path (links are to Maven Central):
jboss-logging-3.1.4.GA.jar
jboss-marshalling-1.4.9.Final.jar
jboss-marshalling-river-1.4.9.Final.jar
jboss-remoting-4.0.7.Final.jar
jboss-sasl-1.0.4.Final.jar
jboss-ejb-api_3.2_spec-1.0.0.Final.jar
jboss-transaction-api_1.2_spec-1.0.0.Final.jar
xnio-api-3.3.0.Final.jar
xnio-nio-3.3.0.Final.jar
jboss-ejb-client-2.0.1.Final.jar
jboss-remote-naming-2.0.1.Final.jar
wildfly-build-config-8.2.1.Final.jar
I did no special configuration on Wildfly to run this example. I simply downloaded a vanilla Wildfly 8.2.1, unzipped it, set up an admin user with the add-user.sh script and deployed my EJB in an EAR. As you can see above access is granted without a username and a password.
You can find the complete project including the AddBrackets EJB on my bitbucket account.
When I tried to get my head around remote EJBs with Wildfly, I found the article JBoss EAP / Wildfly – Three ways to invoke remote EJBs really helpful. It clearly describes the three different methods to access remote EJBs on Wildfly.

According to your own answer the following jars are on your classpath:
jboss-remote-naming-1.0.7.final.jar
jboss-logging.jar
xnio-api-3.0.7.ga.jar
jboss-remoting-3.jar
jboss-ejb-client-1.0.19.final.jar
You write that the application throws the following exception:
java.lang.NoSuchMethodError:
org.jboss.remoting3.Remoting.createEndpoint(Ljava/lang/String;Lorg/xnio/OptionMap;)Lorg/jboss/remoting3/Endpoint;]
This exception is thrown when org.jboss.naming.remote.client.EndpointCache which is part of the jboss-remote-naming jar tries to call Remoting.createEndpoint() which is contained in the jboss-remoting jar.
As you explain in your answer the reason for this is that the Remoting class declares a 3-parameter version of the createEndpoint() method while the EndpointCache class tries to call a 2-parameter version which does not exist.
I checked the commit histories and declared dependencies of the jboss-remote-naming and the jboss-remoting projects to find out what is going wrong there. This is what I found out:
The 2-parameter version of createEndpoint() was only added in version 3.2 of jboss-remoting. The pom.xml for jboss-remote-naming-1.0.7.final says it depends on jboss-remoting 3.2.7.GA.
As there is no version number on your jboss-remoting-3.jar, I guess it is an older version. You should be able to check this by looking for a pom.xml in META-INF folder of your jboss-remoting-3.jar. This should contain the version number.
To solve your problem, I suggest to replace your jboss-remoting-3.jar with jboss-remoting-3.2.7ga.jar or to use the set of jars I listed in my other answer.

I’ve decided the problem isn’t coding or the JNDI InititialContext Properties.
I mean the fatal error is a NoSuchMethodError. Therefore, as I confirmed in the WildFly server logs, my main method never even tries to connect.
Here’s what I think explains the real problem.
And I think it explains why there are so many calls for help with this error:
java.lang.NoSuchMethodError:
org.jboss.remoting3.Remoting.createEndpoint(Ljava/lang/String;Lorg/xnio/OptionMap;)Lorg/jboss/remoting3/Endpoint;]
Also why none of those calls for help ever get a conclusive answer. Just people suggesting different jars.
And since all those answers fixed on jars, this is how I tested the Build Path I was using:
First I removed all jars from the Build Path. Then I ran my one line main program till all ClassNotFoundException were gone.
First Error
java.lang.ClassNotFoundException:
org.jboss.naming.remote.client.InitialContextFactory]
Added jboss-remote-naming-1.0.7.final.jar to class path
Next Error
java.lang.NoClassDefFoundError:
org/jboss/logging/Logger
Added jboss-logging.jar
Next Error
java.lang.NoClassDefFoundError:
org/xnio/Options
Added xnio-api-3.0.7.ga.jar
Next Error
java.lang.NoClassDefFoundError:
org/jboss/remoting3/spi/ConnectionProviderFactory
Added jboss-remoting-3.jar
Next Error
java.lang.NoClassDefFoundError:
org/jboss/ejb/client/EJBClientContextIdentifier
Added jboss-ejb-client-1.0.19.final.jar
FATAL ERROR (note: All NoClassDefFoundError have been cleared)
java.lang.NoSuchMethodError:
org.jboss.remoting3.Remoting.createEndpoint(Ljava/lang/String;Lorg/xnio/OptionMap;)Lorg/jboss/remoting3/Endpoint;]
Then I used Eclipse’s Project Explorer to verify:
That jboss-remoting3.jar has the org.jboss.remoting3.Remoting Class. It does. That’s why there is no NoClassDefFoundError left above.
And verified it had this method:
public Endpoint createEndpoint (String, Executor, OptionMap) note: 3 parameters.
BUT the above Error indicates something is calling:
public Endpoint createEndpoint (String, OptionMap) note: 2 parameters.
That’s why the program throws a NoSuchMethodError. It is looking for a 2 paramater version of org.jboss.remoting3.Remoting.createEndpoint(). And the Remoting Class I have only has a 3 parameter version.`
I know this sounds impossible but the only thing I can think is there is an inconsistency in the Java API???
Clearly something is calling org.jboss.remoting3.Remoting.createEndpoint with 2 parameters.
But my org.jboss.remoting3.Remoting Class only has a 3 parameter version of the createEndpoint() Method.
So I’m going to clean this all up and repost a question asking how to explain the existence of a Class calling for a 2 paramter org.jboss.remoting3.Remoting.createEndpoint Method when I have a jar whose org.jboss.remoting3.Remoting only offers a 3-parameter.

Here is your obligatory "that's a dumb question." Does the wildfly remote quickstart github repo answer the question for you? Their code, from RemoteEJB.java
final Hashtable<String, String> jndiProperties = new Hashtable<>();
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
final Context context = new InitialContext(jndiProperties);
return (RemoteCalculator) context.lookup("ejb:/ejb-remote-server-side/CalculatorBean!" + RemoteCalculator.class.getName());

(Jython) Problems to run python script from java

I wrote 2 python scripts named runner.py and connect.py.
The runner script starts a traffic simulation with a specific port and the other one connects and is able to send commands. Both scripts work fine in my python IDE. But i want to start both scripts from java to recieve data.
import org.python.core.PyInstance;
import org.python.util.PythonInterpreter;
import org.python.core.PyObject;
import org.python.core.PyString;
public class PythonHandler {
PythonInterpreter interpreter = null;
String script_dir;
public PythonHandler() {
PythonInterpreter.initialize(System.getProperties(), System.getProperties(), new String[0]);
this.interpreter = new PythonInterpreter();
this.script_dir = System.getProperty("user.dir");
}
void execfile(final String fileName) {
this.interpreter.execfile(fileName);
}
PyInstance createClass(final String className, final String opts) {
return (PyInstance) this.interpreter.eval(className + "(" + opts + ")");
}
/**
* This method will start the python script runner.py
* NOTE: doesn't work if there is not a main method in the python script
*/
public void startRunner() {
String runner_dir = script_dir + "\\src\\de\\uniol\\inf\\is\\odysseus\\pgtaxi\\traci\\traci4python\\runner.py";
PythonHandler ie = new PythonHandler();
ie.execfile(runner_dir);
}
/**
* This method will start the python script connect.py
* NOTE: doesn't work if there is not a main method in the python script
*/
public void startConnect() {
String connect_dir = script_dir
+ "\\src\\de\\uniol\\inf\\is\\odysseus\\pgtaxi\\traci\\traci4python\\connect.py";
PythonHandler ie = new PythonHandler();
ie.execfile(connect_dir);
}
/**
* This method will start the python script connect.py
* If there is not a main method you can run a specific function
*
* #param function
* name of the function you want to start
*/
public void callConnectFunction(String function) {
String connect_dir = script_dir
+ "\\src\\de\\uniol\\inf\\is\\odysseus\\pgtaxi\\traci\\traci4python\\connect.py";
PythonHandler ie = new PythonHandler();
ie.execfile(connect_dir);
PyInstance run = ie.createClass("Connection", "None");
run.invoke(function);
}
/**
* This method will start the python script runner.py
* If there is not a main method you can run a specific function
*
* #param function
* name of the function you want to start
*/
public void callRunnerFunction(String function) {
String runner_dir = script_dir + "\\src\\de\\uniol\\inf\\is\\odysseus\\pgtaxi\\traci\\traci4python\\connect.py";
PythonHandler ie = new PythonHandler();
ie.execfile(runner_dir);
PyInstance run = ie.createClass("Runner", "None");
run.invoke(function);
}
}
Both scripts start but in the connect.py occur an error. I don't unterstand why i'm able to run the script from the python IDE but not from my java code.
Here are the code from the python scripts:
runner.py
import sys
import subprocess
import os
PORT = 8873
class Runner:
__gui = None
def __init__(self, gui):
self.__gui = gui
print "Starting runner..."
def runLocal(self):
sumoBinary = os.path.abspath(os.curdir)
sumoBinary = sumoBinary.split('de.uniol.inf.is.odysseus.pgtaxi')[0]
sumoBinary = sumoBinary + 'de.uniol.inf.is.odysseus.pgtaxi\\sumo\\bin\\sumo-gui'
scenario = os.path.abspath(os.curdir)
scenario = sumoBinary.split('de.uniol.inf.is.odysseus.pgtaxi')[0]
scenario = scenario + 'de.uniol.inf.is.odysseus.pgtaxi\\scenario\\oldenburg.sumocfg'
sumoProcess = subprocess.Popen([sumoBinary, "-c", scenario, "--remote-port", str(PORT)], stdout=sys.stdout, stderr=sys.stderr)
if __name__ == '__main__':
conn = Runner('None')
conn.runLocal()
connect.py
import sys
import os
PORT = 8873
class Connection:
__gui = None
def __init__(self, gui):
self.__gui = gui
print "Starting connect..."
def initTraci(self):
tools = os.path.abspath(os.curdir)
tools = tools.split('de.uniol.inf.is.odysseus.pgtaxi')[0]
tools = tools + 'de.uniol.inf.is.odysseus.pgtaxi\\sumo\\tools'
sys.path.append(tools)
import traci
traci.init(PORT)
step = 0
while step < 1000:
traci.simulationStep()
step += 1
traci.close()
sys.stdout.flush()
def getFreePort(self):
tools = os.path.abspath(os.curdir)
tools = tools.split('de.uniol.inf.is.odysseus.pgtaxi')[0]
tools = tools + 'de.uniol.inf.is.odysseus.pgtaxi\\sumo\\tools'
sys.path.append(tools)
import sumolib
PORT = sumolib.miscutils.getFreeSocketPort()
if __name__ == '__main__':
conn = Connection('None')
conn.initTraci()
I get this Exception:
Exception in thread "MainThread" Traceback (most recent call last):
File "C:\Users\FEPREUSS\Desktop\PG\workspace\de.uniol.inf.is.odysseus.pgtaxi\src\de\uniol\inf\is\odysseus\pgtaxi\traci\traci4python\connect.py", line 44, in <module>
conn.initTraci()
File "C:\Users\FEPREUSS\Desktop\PG\workspace\de.uniol.inf.is.odysseus.pgtaxi\src\de\uniol\inf\is\odysseus\pgtaxi\traci\traci4python\connect.py", line 25, in initTraci
traci.init(PORT)
File "C:\Users\FEPREUSS\Desktop\PG\workspace\de.uniol.inf.is.odysseus.pgtaxi\sumo\tools\traci\__init__.py", line 65, in init
return getVersion()
File "C:\Users\FEPREUSS\Desktop\PG\workspace\de.uniol.inf.is.odysseus.pgtaxi\sumo\tools\traci\__init__.py", line 82, in getVersion
return _connections[""].getVersion()
AttributeError: 'NoneType' object has no attribute 'getVersion'
And the two methods from the lib who cause the excpetion:
def init(port=8813, numRetries=10, host="localhost", label="default"):
"""
Establish a connection to a TraCI-Server and store it under the given
label. This method is not thread-safe. It accesses the connection
pool concurrently.
"""
_connections[label] = connect(port, numRetries, host)
switch(label)
return getVersion()
def getVersion():
return _connections[""].getVersion()
Hope someone can help me.

You stumbled on a jython bug which was masked away by SUMO hiding the error message of the failed socket connection. Unfortunately you can not work around it easily other than editing SUMO/tools/traci/connection.py in line 49.
Just replace self._socket = socket() with
self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
A workaround was committed to the SUMO repository as well.

get DFS/UNC info progromatically - Java

Ok I'll try and keep this short.
First let me explain exactly what I am trying to get. If you open Windows Explorer and go to a network drive there is a DFS tab there(must have DFS enabled VIA the servers on the network so it may not be there).
In that tab there is a list called the "Referral List"... I want what is in that box. I believe this is the DFS or UNC, you can correct me it will help me.
What I have is the \domainname.com\something$\BUS\blah\myDriveHome but this is tied to something else in that box that contains the actual server that that share is setting on and that share is what I need to run a compliance check.
I cannot use an exe that is not package with Windows 7 not any other exe as we cannot distribute exes.
So what have I done... a VERY thorough search for things like DFS/UNC paths from the command line, powershell, and registry and no go. Command line "net use" only return the linked path and not the server so that is useless.
I only ever post a question when I hit a wall that is taking up to much programming time.
If anyone has an info it would be grateful.
Thanks

I was able to steal the C# code in this answer here and make some modifications so it works with .Net 2.0, and use it within PowerShell:
$dfsCode = #'
using System;
using System.Runtime.InteropServices;
public static class Dfs
{
private enum NetDfsInfoLevel
{
DfsInfo1 = 1,
DfsInfo2 = 2,
DfsInfo3 = 3,
DfsInfo4 = 4,
DfsInfo5 = 5,
DfsInfo6 = 6,
DfsInfo7 = 7,
DfsInfo8 = 8,
DfsInfo9 = 9,
DfsInfo50 = 50,
DfsInfo100 = 100,
DfsInfo150 = 150,
}
[DllImport("netapi32.dll", SetLastError = true)]
private static extern int NetApiBufferFree(IntPtr buffer);
[DllImport("Netapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
private static extern int NetDfsGetInfo(
[MarshalAs(UnmanagedType.LPWStr)] string DfsEntryPath, // DFS entry path for the volume
[MarshalAs(UnmanagedType.LPWStr)] string ServerName, // This parameter is currently ignored and should be NULL
[MarshalAs(UnmanagedType.LPWStr)] string ShareName, // This parameter is currently ignored and should be NULL.
NetDfsInfoLevel Level, // Level of information requested
out IntPtr Buffer // API allocates and returns buffer with requested info
);
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
private struct DFS_INFO_3
{
[MarshalAs(UnmanagedType.LPWStr)]
public string EntryPath;
[MarshalAs(UnmanagedType.LPWStr)]
public string Comment;
public int State;
public int NumberOfStorages;
public IntPtr Storage;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
private struct DFS_STORAGE_INFO
{
public int State;
[MarshalAs(UnmanagedType.LPWStr)]
public string ServerName;
[MarshalAs(UnmanagedType.LPWStr)]
public string ShareName;
}
private static T GetStruct<T>(IntPtr buffer, int offset)where T:struct
{
T r = new T();
r = (T) Marshal.PtrToStructure((IntPtr)((long)buffer + offset * Marshal.SizeOf(r)), typeof(T));
return r;
}
public static string GetDfsInfo(string server)
{
string rval = null;
IntPtr b;
int r = NetDfsGetInfo(server, null, null, NetDfsInfoLevel.DfsInfo3, out b);
if(r != 0)
{
NetApiBufferFree(b);
// return passed string if not DFS
return rval;
}
DFS_INFO_3 sRes = GetStruct<DFS_INFO_3>(b,0);
if(sRes.NumberOfStorages > 0)
{
DFS_STORAGE_INFO sResInfo = GetStruct<DFS_STORAGE_INFO>(sRes.Storage,0);
rval = string.Concat(#"\\", sResInfo.ServerName, #"\", sResInfo.ShareName, #"\");
}
NetApiBufferFree(b);
return rval;
}
}
'#
Add-Type -TypeDefinition $dfsCode
[Dfs]::GetDfsInfo('\\ad.domain.com\Share')
This code will work with PowerShell 2.0 which is included with Windows 7.

I went another direction with the use of PSEXEC and DFSUtil to find the DFS info VIA the remote PC. Returns a lot of info but I filtered it in PowerShell after reading the file and matching the UNC. I would post the how to but I had to do some major adapting on my end with the info that is on a few other sites for DFSUtil and what to look for and PSExec. I will note this for PSEXEC:
cmd.exe /s /c C:\Temp\psexec.exe 2> $null
That "2> $null" will save you some headaches and your script crashing if the return is in the error channel. You will need to run it in the PS console though without that to catch the error, but when you have a script like mine performing 50+ system checks you don't want the whole thing to halt for just one error.