I'm working at the moment on a Mod for Minecraft with a dedicated Gui system written in C++ and Qt5. I let my GUI and Minecraft communicate through a named pipe, but I have there a small problem. I can read and write with a simple Java and C++(Qt) program into the pipe. But when I create a new instance of my Pipeendpoint class in post init of Minecraft Forge it can't read anything from the Pipe. In a standalone system, it can read stuff.
Not working Forge Implementation:
package de.CoderDE.CodersAnimationEditor;
import java.io.FileNotFoundException;
import de.CoderDE.CodersAnimationEditor.Pipe.PipeEndpoint;
import net.minecraft.client.Minecraft;
import net.minecraftforge.fml.client.registry.ClientRegistry;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
#SideOnly(Side.CLIENT)
public class ClientProxy extends CommonProxy {
static PipeEndpoint pendpoint;
#Override
public void preInit(FMLPreInitializationEvent e) {
super.preInit(e);
}
#Override
public void init(FMLInitializationEvent e) {
super.init(e);
}
#Override
public void postInit(FMLPostInitializationEvent e) {
super.postInit(e);
try {
pendpoint = new PipeEndpoint();
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
try {
Thread.sleep(10000);
} catch (InterruptedException e1) {
e1.printStackTrace();
}
}
}
Working standalone implementation:
import java.io.FileNotFoundException;
import de.CoderDE.CodersAnimationEditor.Pipe.PipeEndpoint;
public class Main {
static PipeEndpoint pipe;
public static void main(String[] args) {
try {
pipe = new PipeEndpoint();
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
And the important PipeEndpoint class:
package de.CoderDE.CodersAnimationEditor.Pipe;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
public class PipeEndpoint {
private Thread reciever;
private RandomAccessFile pipe;
public PipeEndpoint() throws FileNotFoundException {
pipe = new RandomAccessFile("\\\\.\\pipe\\CodersAnimationEditor", "rw");
reciever = new Thread(new PipeEndpointReciever());
reciever.start();
}
private class PipeEndpointReciever implements Runnable {
#Override
public void run() {
try {
while (true) {
System.out.print((char)pipe.read());
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
And with "can't read anything" I mean that it never returns from pipe.read().
Oh, and the Java application starts after the C++(Qt) LocalServer started listening and waits for a new connection.
I'm trying to attach to a running JVM to debug it using the Virtual Machine class in java. I'm currently have java 8, with jdk1.8.0_11. I have tried to add a manifest to it, with but to no avail. I'm also importing the tools.jar file from my JDK\libs folder.
My code:
import java.io.IOException;
import java.util.List;
import com.sun.tools.attach.AgentInitializationException;
import com.sun.tools.attach.AgentLoadException;
import com.sun.tools.attach.AttachNotSupportedException;
import com.sun.tools.attach.VirtualMachine;
import com.sun.tools.attach.VirtualMachineDescriptor;
public class loadVM {
public static void main(String[] args) {
String name = "replaceAfterNameFound";
List <VirtualMachineDescriptor> vms = VirtualMachine.list();
for (VirtualMachineDescriptor vmd: vms) {
System.out.println(vmd.displayName());
if (vmd.displayName().equals(name)) {
try {
VirtualMachine vm = VirtualMachine.attach(vmd.id());
String agent = "";
vm.loadAgent(agent);
} catch(AttachNotSupportedException e) {
e.printStackTrace();
} catch(IOException e) {
e.printStackTrace();
} catch(AgentLoadException e) {
e.printStackTrace();
} catch(AgentInitializationException e) {
e.printStackTrace();
}
}
}
}
}
Here is a copy of the error I get when running it:
java.util.ServiceConfigurationError:com.sun.tools.attach.spi.AttachProvider:
Provider sun.tools.attach.WindowsAttachProvider could not be
instantiated
Thank you guys for all your help!
I wrote this audio class that is used by my soundplayer class it works correctly with no errors but causes my game to hiccup or jerk when the sound is used in quick succession (i.e. rapid jumping). I thought that by loading it in once and rewinding it each time(with the mark and reset methods) the sound would stay in RAM but it doesn't seem to be doing that.I am open to any changes or a total rewrite. i just need it to work I've been stuck on audio for months.
package com.bigdirty1985.squaresthatmove.sound;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import sun.audio.AudioPlayer;
import sun.audio.AudioStream;
public class Sound {
#SuppressWarnings("restriction")
private AudioStream audioStream;
private File file;
#SuppressWarnings("restriction")
public Sound(File file) {
this.file = file;
try {
this.audioStream = new AudioStream(new FileInputStream(this.file));
this.audioStream.mark(100000000);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#SuppressWarnings("restriction")
public void play() {
AudioPlayer.player.stop(this.audioStream);
AudioPlayer.player.start(this.audioStream);
try {
this.audioStream.reset();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#SuppressWarnings("restriction")
public void stop() {
AudioPlayer.player.stop(this.audioStream);
}
}
Using Robotium for my Android automation I find myself creating the same steps for each test case.
I always need to "Login" and "Logout", I've been trying to create a FunctionsTestClass so I can simply call rLogin(); and rLogout();
Here is an example:
Adding my complete files.
'package com.myproject.mobile.test;
import android.test.ActivityInstrumentationTestCase2;
import android.app.Activity;
import junit.framework.AssertionFailedError;
import com.bitbar.recorder.extensions.ExtSolo;
import com.jayway.android.robotium.solo.By;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
'public class Logout extends ActivityInstrumentationTestCase2<Activity> {
private static final String LAUNCHER_ACTIVITY_CLASSNAME = "com.myproject.mobile.MainActivity";
private static Class<?> launchActivityClass;
static {
try {
launchActivityClass = Class.forName(LAUNCHER_ACTIVITY_CLASSNAME);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
private static ExtSolo solo; // ExtSolo is an extension of Robotium Solo that helps
// collecting better test execution data during test
// runs
#SuppressWarnings("unchecked")
public Logout() {
super((Class<Activity>) launchActivityClass);
}
#Override
public void setUp() throws Exception {
super.setUp();
solo = new ExtSolo(getInstrumentation(), getActivity(), this.getClass()
.getCanonicalName(), getName());
}
#Override
public void tearDown() throws Exception {
solo.finishOpenedActivities();
solo.tearDown();
super.tearDown();
}
public static void logginin() throws Exception {
try {
//enter username
solo.sleep(17000);
throw e;
} catch (Exception e) {
solo.fail(
"com.myproject.mobile.test.MainActivityTest.testRecorded_scr_fail",
e);
throw e;
}
}
}'
Adding my second file
package com.mypackage.mobile.test;
import android.test.ActivityInstrumentationTestCase2;
import android.app.Activity;
import junit.framework.AssertionFailedError;
import com.bitbar.recorder.extensions.ExtSolo;
import com.jayway.android.robotium.solo.By;
import com.mypackage.mobile.test.*;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
'public class Test extends ActivityInstrumentationTestCase2<Activity> {
private static final String LAUNCHER_ACTIVITY_CLASSNAME = "com.mypackage.mobile.MainActivity";
private static Class<?> launchActivityClass;
static {
try {
launchActivityClass = Class.forName(LAUNCHER_ACTIVITY_CLASSNAME);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
private static ExtSolo solo; // ExtSolo is an extension of Robotium Solo that helps
// collecting better test execution data during test
// runs
#SuppressWarnings("unchecked")
public Test() {
super((Class<Activity>) launchActivityClass);
}
#Override
public void setUp() throws Exception {
super.setUp();
solo = new ExtSolo(getInstrumentation(), getActivity(), this.getClass()
.getCanonicalName(), getName());
}
#Override
public void tearDown() throws Exception {
solo.finishOpenedActivities();
solo.tearDown();
super.tearDown();
}
public void testRecorded() throws Exception {
try {
Logout.logginin();
} catch (AssertionFailedError e) {
solo.fail(
"com.mypackage.name.MainActivityTest.testRecorded_scr_fail",
e);
throw e;
} catch (Exception e) {
solo.fail(
"com.mypackage.name.MainActivityTest.testRecorded_scr_fail",
e);
throw e;
}
}
}
Updated the bottom two code to reflect my project.
Don't create testcase with name testLoggingin() . Instead of that creat a class having function login(). So that, whenever its needed you can import it and can call the function to login. And you can check conditions using assert.
I am trying to run a program using freetts. I am able to compile the program however I am not able to use kevin or mbrola voices I get the follwing output message at the end
System property "mbrola.base" is undefined. Will not use MBROLA voices.
LINE UNAVAILABLE: Format is pcm_signed 16000.0 Hz 16 bits 1 channel big endian
import javax.speech.*;
import javax.speech.synthesis.*;
import java.util.*;
class freetts {
public static void main(String[] args) {
try{
Calendar calendar = new GregorianCalendar();
String sayTime = "It is " + calendar.get(Calendar.HOUR) + " " + calendar.get(Calendar.MINUTE) + " " + (calendar.get(Calendar.AM_PM)==0 ? "AM":"PM");
Synthesizer synth = Central.createSynthesizer(null);
synth.allocate();
synth.resume();
synth.speakPlainText(sayTime, null);
synth.waitEngineState(Synthesizer.QUEUE_EMPTY);
synth.deallocate();
}
catch(Exception e){
e.printStackTrace();
}
}
}
It seems that "To enable FreeTTS support for MBROLA, merely copy mbrola/mbrola.jar to lib/mbrola.jar. Then, whenever you run any FreeTTS application, specify the "mbrola.base" directory as a system property:
java -Dmbrola.base=/home/jim/mbrola -jar bin/FreeTTSHelloWorld.jar mbrola_us1"
I found this at:
http://freetts.sourceforge.net/mbrola/README.html
http://workorhobby.blogspot.com/2011/02/java-audio-freetts-line-unavailable.html
A big thanks to the author.
A program based on FreeTTS, the free text-to-speech engine for Java, was getting occasional errors
"LINE UNAVAILABLE: Format is ..."
Turns out there is no Java Exception or other mechanism to detect this error that occurs inside the FreeTTS library. All you get is the message on System.out, so there is no good way to react programatically.
Workaround: Configure the FreeTTS audio player to attempt accessing the audio device more than once until it succeeds. In this example, a short delay of 0.1 seconds is used to not miss an opportunity to grab the audio device; we keep trying for 30 seconds:
System.setProperty("com.sun.speech.freetts.audio.AudioPlayer.openFailDelayMs", "100");
System.setProperty("com.sun.speech.freetts.audio.AudioPlayer.totalOpenFailDelayMs", "30000");
If the audio device is permanently used by another program, there is of course no way to get access. Under Linux, this command will display the ID of the process that is currently holding the audio device, so you can then try to get rid of the offending program:
/sbin/fuser /dev/dsp
The second phrase has nothing to do with mbrola, but with a horrendous java linux sound bug that is still not fixed.
Check the third post here:
https://forums.oracle.com/forums/thread.jspa?threadID=2206163
That is happening because freetts "trusts" the sourcedataline, instead of doing the workaround on that post. The bug is in the jdk, but can be worked around by finding where in freetts that is happening and inserting the workaround & recompiling.
Here is a testcase
package util.speech;
import java.util.Iterator;
import java.util.Locale;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.SourceDataLine;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assume;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class VoiceTest {
public VoiceTest() {
}
#BeforeClass
public static void setUpClass() throws Exception {
}
#AfterClass
public static void tearDownClass() throws Exception {
}
#Before
public void setUp() {
}
#After
public void tearDown() {
}
#Test
public void testDataLineAvailableAndBuggyInJDK() throws LineUnavailableException {
boolean failedSimpleGetLine = false;
AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
SourceDataLine line = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
try {
line = (SourceDataLine) AudioSystem.getLine(info);
} catch (LineUnavailableException e) {
//ok, at least it says so
throw e;
}
try {
//if this fails the jdk is very buggy, since it just told us
//the line was available
line.open(format);
} catch (LineUnavailableException e) {
failedSimpleGetLine = true;
} finally {
if (line.isOpen()) {
line.close();
}
}
//now if this is true, test if it's possible to get a valid sourcedataline
//or the only bug is adquiring a sourcedataline doesn't throw a lineunavailable
//exception before open
Assume.assumeTrue(failedSimpleGetLine);
line = getSourceDataLine(format);
if (line == null) {
return;
}
try {
line.open(format);
} catch (LineUnavailableException e) {
//ok then it is consistent, and there is only one bug
fail("Line Unavailable after being adquired");
} finally {
if (line.isOpen()) {
line.close();
}
}
fail("line available after first test not managing to adquire it");
}
private SourceDataLine getSourceDataLine(AudioFormat format) {
try {
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
for (Mixer.Info mi : AudioSystem.getMixerInfo()) {
SourceDataLine dataline = null;
try {
Mixer mixer = AudioSystem.getMixer(mi);
dataline = (SourceDataLine) mixer.getLine(info);
dataline.open(format);
dataline.start();
return dataline;
} catch (Exception e) {
}
if (dataline != null) {
try {
dataline.close();
} catch (Exception e) {
}
}
}
} catch (Exception e) {
}
return null;
}
}
I know i am posting it little late, but this may help someone. I tried with both kevin and mbrola, and it worked for me. Please find the code below.
package com.mani.texttospeech;
import java.beans.PropertyVetoException;
import java.util.Locale;
import javax.speech.AudioException;
import javax.speech.Central;
import javax.speech.EngineException;
import javax.speech.EngineStateError;
import javax.speech.synthesis.Synthesizer;
import javax.speech.synthesis.SynthesizerModeDesc;
import javax.speech.synthesis.Voice;
/**
*
* #author Manindar
*/
public class SpeechUtils {
SynthesizerModeDesc desc;
Synthesizer synthesizer;
Voice voice;
public void init(String voiceName) throws EngineException, AudioException, EngineStateError, PropertyVetoException {
if (desc == null) {
System.setProperty("freetts.voices", "com.sun.speech.freetts.en.us.cmu_us_kal.KevinVoiceDirectory");
desc = new SynthesizerModeDesc(Locale.US);
Central.registerEngineCentral("com.sun.speech.freetts.jsapi.FreeTTSEngineCentral");
synthesizer = Central.createSynthesizer(desc);
synthesizer.allocate();
synthesizer.resume();
SynthesizerModeDesc smd = (SynthesizerModeDesc) synthesizer.getEngineModeDesc();
Voice[] voices = smd.getVoices();
for (Voice voice1 : voices) {
if (voice1.getName().equals(voiceName)) {
voice = voice1;
break;
}
}
synthesizer.getSynthesizerProperties().setVoice(voice);
}
}
public void terminate() throws EngineException, EngineStateError {
synthesizer.deallocate();
}
public void doSpeak(String speakText) throws EngineException, AudioException, IllegalArgumentException, InterruptedException {
synthesizer.speakPlainText(speakText, null);
synthesizer.waitEngineState(Synthesizer.QUEUE_EMPTY);
}
public static void main(String[] args) throws Exception {
SpeechUtils su = new SpeechUtils();
su.init("kevin16");
// su.init("kevin");
// su.init("mbrola_us1");
// su.init("mbrola_us2");
// su.init("mbrola_us3");
// high quality
su.doSpeak("Hi this is Manindar. Welcome to audio world.");
su.terminate();
}
}
And add the below dependencies to your pom.xml file.
<dependencies>
<dependency>
<groupId>net.sf.sociaal</groupId>
<artifactId>freetts</artifactId>
<version>1.2.2</version>
</dependency>
</dependencies>
Hope this will be helpful.