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  • No properties file found Error for ReloadableResourceBundleMessageSource

    - by samspot
    I'm trying to use a reloadable spring resource bundle but spring cannot find the file. I've tried tons of different paths, but can't get it to work anywhere. In the code below you'll see that i load both the spring bundle and the regular one from the same path variable but only one works. I've been banging my head against this for far too long. Anybody have any ideas? logfile INFO 2010-04-28 11:38:31,805 [main] org.myorg.test.TestMessages: C:\www\htdocs\messages.properties INFO 2010-04-28 11:38:31,805 [main] org.myorg.data.Messages: initializing Spring Message Source to C:\www\htdocs\messages.properties INFO 2010-04-28 11:38:31,821 [main] org.myorg.data.Messages: Attempting to load properties from C:\www\htdocs\messages.properties DEBUG 2010-04-28 11:38:31,836 [main] org.springframework.context.support.ReloadableResourceBundleMessageSource: No properties file found for [C:\www\htdocs\messages.properties_en_US] - neither plain properties nor XML DEBUG 2010-04-28 11:38:31,842 [main] org.springframework.context.support.ReloadableResourceBundleMessageSource: No properties file found for [C:\www\htdocs\messages.properties_en] - neither plain properties nor XML DEBUG 2010-04-28 11:38:31,848 [main] org.springframework.context.support.ReloadableResourceBundleMessageSource: No properties file found for [C:\www\htdocs\messages.properties] - neither plain properties nor XML INFO 2010-04-28 11:38:31,848 [main] org.myorg.test.TestMessages: I am C:\www\htdocs\messages.properties Messages.java package org.myorg.data; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.PropertyResourceBundle; import java.util.ResourceBundle; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.context.support.ReloadableResourceBundleMessageSource; public class Messages { protected static final Log logger = LogFactory.getLog(Messages.class); private static ReloadableResourceBundleMessageSource msgSource = null; private static ResourceBundle RESOURCE_BUNDLE; public static final String PATH = "C:" + File.separator + "www" + File.separator + "htdocs" + File.separator + "messages.properties"; private Messages() { } public static String getString(String key) { initBundle(); return msgSource.getMessage(key, null, RESOURCE_BUNDLE.getString(key), null); } private static void initBundle(){ if(null == msgSource || null == RESOURCE_BUNDLE){ logger.info("initializing Spring Message Source to " + PATH); msgSource = new ReloadableResourceBundleMessageSource(); msgSource.setBasename(PATH); msgSource.setCacheSeconds(1); /* works, but you have to hardcode the platform dependent path starter. It also does not cache */ FileInputStream fis = null; try { logger.info("Attempting to load properties from " + PATH); fis = new FileInputStream(PATH); RESOURCE_BUNDLE = new PropertyResourceBundle(fis); } catch (Exception e) { logger.info("couldn't find " + PATH); } finally { try { if(null != fis) fis.close(); } catch (IOException e) { } } } } } TestMessages.java package org.myorg.test; import org.myorg.data.Messages; public class TestMessages extends AbstractTest { public void testMessage(){ logger.info(Messages.PATH); logger.info(Messages.getString("OpenKey.TEST")); } }

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  • Update MySQL table using data from a text file through Java

    - by Karthi Karthi
    I have a text file with four lines, each line contains comma separated values like below file My file is: Raj,[email protected],123455 kumar,[email protected],23453 shilpa,[email protected],765468 suraj,[email protected],876567 and I have a MySQL table which contains four fields firstname lastname email phno ---------- ---------- --------- -------- Raj babu [email protected] 2343245 kumar selva [email protected] 23453 shilpa murali [email protected] 765468 suraj abd [email protected] 876567 Now I want to update my table using the data in the above text file through Java. I have tried using bufferedReader to read from the file and used split method using comma as delimiter and stored it in array. But it is not working. Any help appreciated. This is what I have tried so far void readingFile() { try { File f1 = new File("TestFile.txt"); FileReader fr = new FileReader(f1); BufferedReader br = new BufferedReader(fr); String strln = null; strln = br.readLine(); while((strln=br.readLine())!=null) { // System.out.println(strln); arr = strln.split(","); strfirstname = arr[0]; strlastname = arr[1]; stremail = arr[2]; strphno = arr[3]; System.out.println(strfirstname + " " + strlastname + " " + stremail +" "+ strphno); } // for(String i : arr) // { // } br.close(); fr.close(); } catch(IOException e) { System.out.println("Cannot read from File." + e); } try { st = conn.createStatement(); String query = "update sampledb set email = stremail,phno =strphno where firstname = strfirstname "; st.executeUpdate(query); st.close(); System.out.println("sampledb Table successfully updated."); } catch(Exception e3) { System.out.println("Unable to Update sampledb table. " + e3); } } and the output i got is: Ganesh Pandiyan [email protected] 9591982389 Dass Jeyan [email protected] 9689523645 Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1 Gowtham Selvan [email protected] 9894189423 at TemporaryPackages.FileReadAndUpdateTable.readingFile(FileReadAndUpdateTable.java:35) at TemporaryPackages.FileReadAndUpdateTable.main(FileReadAndUpdateTable.java:72) Java Result: 1 @varadaraj: This is the code of yours.... String stremail,strphno,strfirstname,strlastname; // String[] arr; Connection conn; Statement st; void readingFile() { try { BufferedReader bReader= new BufferedReader(new FileReader("TestFile.txt")); String fileValues; while ((fileValues = bReader.readLine()) != null) { String[] values=fileValues .split(","); strfirstname = values[0]; // strlastname = values[1]; stremail = values[1]; strphno = values[2]; System.out.println(strfirstname + " " + strlastname + " " + stremail +" "+ strphno); } bReader.close(); } catch (IOException e) { System.out.println("File Read Error"); } // for(String i : arr) // { // } try { st = conn.createStatement(); String query = "update sampledb set email = stremail,phno =strphno where firstname = strfirstname "; st.executeUpdate(query); st.close(); System.out.println("sampledb Table successfully updated."); } catch(Exception e3) { System.out.println("Unable to Update sampledb table. " + e3); } }

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  • How to play audio in Java Application

    - by user577829
    I'm making a java application and I need to play audio. I'm playing mainly small sound files of my cannon firing (its a cannon shooting game) and the projectiles exploding, though I plan on having looping background music. I have found two different methods to accomplish this, but both don't work how I want. The first method is literally a method: public void playSoundFile(File file) {//http://java.ittoolbox.com/groups/technical-functional/java-l/sound-in-an-application-90681 try { //get an AudioInputStream AudioInputStream ais = AudioSystem.getAudioInputStream(file); //get the AudioFormat for the AudioInputStream AudioFormat audioformat = ais.getFormat(); System.out.println("Format: " + audioformat.toString()); System.out.println("Encoding: " + audioformat.getEncoding()); System.out.println("SampleRate:" + audioformat.getSampleRate()); System.out.println("SampleSizeInBits: " + audioformat.getSampleSizeInBits()); System.out.println("Channels: " + audioformat.getChannels()); System.out.println("FrameSize: " + audioformat.getFrameSize()); System.out.println("FrameRate: " + audioformat.getFrameRate()); System.out.println("BigEndian: " + audioformat.isBigEndian()); //ULAW format to PCM format conversion if ((audioformat.getEncoding() == AudioFormat.Encoding.ULAW) || (audioformat.getEncoding() == AudioFormat.Encoding.ALAW)) { AudioFormat newformat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, audioformat.getSampleRate(), audioformat.getSampleSizeInBits() * 2, audioformat.getChannels(), audioformat.getFrameSize() * 2, audioformat.getFrameRate(), true); ais = AudioSystem.getAudioInputStream(newformat, ais); audioformat = newformat; } //checking for a supported output line DataLine.Info datalineinfo = new DataLine.Info(SourceDataLine.class, audioformat); if (!AudioSystem.isLineSupported(datalineinfo)) { //System.out.println("Line matching " + datalineinfo + " is not supported."); } else { //System.out.println("Line matching " + datalineinfo + " is supported."); //opening the sound output line SourceDataLine sourcedataline = (SourceDataLine) AudioSystem.getLine(datalineinfo); sourcedataline.open(audioformat); sourcedataline.start(); //Copy data from the input stream to the output data line int framesizeinbytes = audioformat.getFrameSize(); int bufferlengthinframes = sourcedataline.getBufferSize() / 8; int bufferlengthinbytes = bufferlengthinframes * framesizeinbytes; byte[] sounddata = new byte[bufferlengthinbytes]; int numberofbytesread = 0; while ((numberofbytesread = ais.read(sounddata)) != -1) { int numberofbytesremaining = numberofbytesread; sourcedataline.write(sounddata, 0, numberofbytesread); } } } catch (Exception e) { e.printStackTrace(); } } The problem with this is that my entire program stops until the sound file is finished, or at least nearly finished. The second method is this: File file = new File("Launch1.wav"); AudioClip clip; try { clip = JApplet.newAudioClip(file.toURL()); clip.play(); } catch (Exception e) { e.getMessage(); } The problem I have here is that every time the sound file ends early or doesn't play at all depending on where I place the code. Is their any way to play sound without the above mentioned problems? Am I doing something wrong? Any help is greatly appreciated.

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  • Custom SessionListener, name is not bound in this context, javax.naming.NameNotFoundException

    - by mehmet6parmak
    Hi, I am trying to implement HttpSessionListener so that users of this listener can register implementation of ISessionEvent interface to session Events.code is below: public class MySessionListener implements HttpSessionListener{ @Resource ISessionEvent sessionEvent; public ISessionEvent getSessionEvent() { return sessionEvent; } public void setSessionEvent(ISessionEvent sessionEvent) { this.sessionEvent = sessionEvent; } @Override public void sessionCreated(HttpSessionEvent arg0) { sessionEvent.SessionCreated(arg0.getSession()); } @Override public void sessionDestroyed(HttpSessionEvent arg0) { sessionEvent.SessionDestroyed(arg0.getSession()); } } When user implement ISessionEvent and add as a bean, SessionCreated and SessionDestroyed functions of implementation will be called when these events occured. You can ask why dont you just write inside listeners methods, i dont i'm just trying. When i try the code above i got the following error message: javax.naming.NameNotFoundException: Name com.mehmet6parmak.sessionlistener.MySessionListener is not bound in this Context at org.apache.naming.NamingContext.lookup(NamingContext.java:770) at org.apache.naming.NamingContext.lookup(NamingContext.java:153) at org.apache.catalina.util.DefaultAnnotationProcessor.lookupFieldResource(DefaultAnnotationProcessor.java:278) at org.apache.catalina.util.DefaultAnnotationProcessor.processAnnotations(DefaultAnnotationProcessor.java:187) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4082) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Resource annotation causes the error but i could not resolve it. Thanks All... Interface and Implementation @Resource public interface ISessionEvent { public void SessionCreated(HttpSession session); public void SessionDestroyed(HttpSession session); } @Resource public class SessionEvent implements ISessionEvent { @Override public void SessionDestroyed(HttpSession session) { System.out.println("From Session Event Callback(Destroy):" + session.getId()); } @Override public void SessionCreated(HttpSession session) { System.out.println("From Session Event Callback(Create):" + session.getId()); } } Bean Definition <context:annotation-config/> <context:component-scan base-package="com.mehmet6parmak"> </context:component-scan> <bean id="sessionEvent" autowire="byName" class="com.mehmet6parmak.sessionlistener.SessionEvent"></bean> Solution:Using the method used in link works.

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  • How do I make java wait for boolean to run funciton

    - by TWeeKeD
    I'm sure this is pretty simple but I can't figure out and it sucks I'm up on suck on (what should be) an easy step. ok. I have a method that runs one function that give a response. this method actually handles the uploading of the file so o it takes a second to give a response. I need this response in the following method. sendPicMsg needs to complete and then forward it's response to sendMessage. Please help. b1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { if(!uploadMsgPic.equalsIgnoreCase("")){ Log.v("response","Pic in storage"); sendPicMsg(); sendMessage(); }else{ sendMessage(); } 1st Method public void sendPicMsg(){ Log.v("response", "sendPicMsg Loaded"); if(!uploadMsgPic.equalsIgnoreCase("")){ final SharedPreferences preferences = this.getActivity().getSharedPreferences("MyPreferences", getActivity().MODE_PRIVATE); AsyncHttpClient client3 = new AsyncHttpClient(); RequestParams params3 = new RequestParams(); File file = new File(uploadMsgPic); try { File f = new File(uploadMsgPic.replace(".", "1.")); f.createNewFile(); //Convert bitmap to byte array Bitmap bitmap = decodeFile(file,400); ByteArrayOutputStream bos = new ByteArrayOutputStream(); bitmap.compress(CompressFormat.PNG, 0 /*ignored for PNG*/, bos); byte[] bitmapdata = bos.toByteArray(); //write the bytes in file FileOutputStream fos = new FileOutputStream(f); fos.write(bitmapdata); params3.put("file", f); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } params3.put("email", preferences.getString("loggedin_user", "")); params3.put("webversion", "1"); client3.post("http://peekatu.com/apiweb/msgPic_upload.php",params3, new AsyncHttpResponseHandler() { @Override public void onSuccess(String response) { Log.v("response", "Upload Complete"); refreshChat(); //responseString = response; Log.v("response","msgPic has been uploaded"+response); //parseChatMessages(response); response=picurl; uploadMsgPic = ""; if(picurl!=null){ Log.v("response","picurl is set"); } if(picurl==null){ Log.v("response", "picurl no ready"); }; } }); sendMessage(); } } 2nd Method public void sendMessage(){ final SharedPreferences preferences = this.getActivity().getSharedPreferences("MyPreferences", getActivity().MODE_PRIVATE); if(preferences.getString("Username", "").length()<=0){ editText1.setText(""); Toast.makeText(this.getActivity(), "Please Login to send messages.", 2); return; } AsyncHttpClient client = new AsyncHttpClient(); RequestParams params = new RequestParams(); if(type.equalsIgnoreCase("3")){ params.put("toid",user); params.put("action", "sendprivate"); }else{ params.put("room", preferences.getString("selected_room", "Adult Lobby")); params.put("action", "insert"); } Log.v("response", "Sending message "+editText1.getText().toString()); params.put("message",editText1.getText().toString() ); params.put("media", picurl); params.put("email", preferences.getString("loggedin_user", "")); params.put("webversion", "1"); client.post("http://peekatu.com/apiweb/messagetest.php",params, new AsyncHttpResponseHandler() { @Override public void onSuccess(String response) { refreshChat(); //responseString = response; Log.v("response", response); //parseChatMessages(response); if(picurl!=null) Log.v("response", picurl); } }); editText1.setText(""); lv.setSelection(adapter.getCount() - 1); }

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  • Display particular data into a file

    - by Avinash K G
    I'm new to Ubuntu and have been using it for a couple of weeks now. Recently I encountered a problem where in I had to display a particular data on to a file. Here is the output displayed on the terminal. Potential vulnerability found (CVE-2009-4028) CVSS Score is 6.8 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2009-4030) CVSS Score is 4.4 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2009-5026) CVSS Score is 6.8 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0075) CVSS Score is 1.7 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0087) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0101) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0102) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0112) CVSS Score is 3.5 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0113) CVSS Score is 5.5 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0114) CVSS Score is 3.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0115) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0116) CVSS Score is 4.9 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0118) CVSS Score is 4.9 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0119) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0120) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0484) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0485) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0490) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0492) CVSS Score is 2.1 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0540) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0553) CVSS Score is 7.5 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0574) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2012-0583) CVSS Score is 4.0 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2013-1492) CVSS Score is 7.5 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2013-1506) CVSS Score is 2.8 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) Potential vulnerability found (CVE-2013-1521) CVSS Score is 6.5 Full vulnerability match (incl. edition/language) File "/usr/sbin/mysqld" (CPE = cpe:/a:mysql:mysql:5.1:::) on host glynis-desktop (key glynis-desktop) I intend to display the Potential vulnerability found field and the corresponding score alone. There seems to be about 9995 entries and I would like to display all of them. I have been using this command as of now awk '/CVSS Score is/ < /Potential vulnerability found/' output.txt but this seems to display only the name of the vulnerability or the score. How do I display this in file(text,excel) such that all the vulnerability and the corresponding score willbe displayed. Any help would be appreciated Thank you.

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  • Error in code of basic game using multiple sprites and surfaceView [on hold]

    - by Khagendra Nath Mahato
    I am a beginner to android and i was trying to make a basic game with the help of an online video tutorial. I am having problem with the multi-sprites and how to use with surfaceview.The application fails launching. Here is the code of the game.please help me. package com.example.killthemall; import java.util.ArrayList; import java.util.List; import java.util.Random; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Rect; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.widget.Toast; public class Game extends Activity { KhogenView View1; @Override protected void onPause() { // TODO Auto-generated method stub super.onPause(); while(true){ try { OurThread.join(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); }} } Thread OurThread; int herorows = 4; int herocolumns = 3; int xpos, ypos; int xspeed; int yspeed; int herowidth; int widthnumber = 0; int heroheight; Rect src; Rect dst; int round; Bitmap bmp1; // private Bitmap bmp1;//change name public List<Sprite> sprites = new ArrayList<Sprite>() { }; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); View1 = new KhogenView(this); setContentView(View1); sprites.add(createSprite(R.drawable.image)); sprites.add(createSprite(R.drawable.bad1)); sprites.add(createSprite(R.drawable.bad2)); sprites.add(createSprite(R.drawable.bad3)); sprites.add(createSprite(R.drawable.bad4)); sprites.add(createSprite(R.drawable.bad5)); sprites.add(createSprite(R.drawable.bad6)); sprites.add(createSprite(R.drawable.good1)); sprites.add(createSprite(R.drawable.good2)); sprites.add(createSprite(R.drawable.good3)); sprites.add(createSprite(R.drawable.good4)); sprites.add(createSprite(R.drawable.good5)); sprites.add(createSprite(R.drawable.good6)); } private Sprite createSprite(int image) { // TODO Auto-generated method stub bmp1 = BitmapFactory.decodeResource(getResources(), image); return new Sprite(this, bmp1); } public class KhogenView extends SurfaceView implements Runnable { SurfaceHolder OurHolder; Canvas canvas = null; Random rnd = new Random(); { xpos = rnd.nextInt(canvas.getWidth() - herowidth)+herowidth; ypos = rnd.nextInt(canvas.getHeight() - heroheight)+heroheight; xspeed = rnd.nextInt(10 - 5) + 5; yspeed = rnd.nextInt(10 - 5) + 5; } public KhogenView(Context context) { super(context); // TODO Auto-generated constructor stub OurHolder = getHolder(); OurThread = new Thread(this); OurThread.start(); } @Override public void run() { // TODO Auto-generated method stub herowidth = bmp1.getWidth() / 3; heroheight = bmp1.getHeight() / 4; boolean isRunning = true; while (isRunning) { if (!OurHolder.getSurface().isValid()) continue; canvas = OurHolder.lockCanvas(); canvas.drawRGB(02, 02, 50); for (Sprite sprite : sprites) { if (widthnumber == 3) widthnumber = 0; update(); getdirection(); src = new Rect(widthnumber * herowidth, round * heroheight, (widthnumber + 1) * herowidth, (round + 1)* heroheight); dst = new Rect(xpos, ypos, xpos + herowidth, ypos+ heroheight); canvas.drawBitmap(bmp1, src, dst, null); } widthnumber++; OurHolder.unlockCanvasAndPost(canvas); } } public void update() { try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } if (xpos + xspeed <= 0) xspeed = 40; if (xpos >= canvas.getWidth() - herowidth) xspeed = -50; if (ypos + yspeed <= 0) yspeed = 45; if (ypos >= canvas.getHeight() - heroheight) yspeed = -55; xpos = xpos + xspeed; ypos = ypos + yspeed; } public void getdirection() { double angleinteger = (Math.atan2(yspeed, xspeed)) / (Math.PI / 2); round = (int) (Math.round(angleinteger) + 2) % herorows; // Toast.makeText(this, String.valueOf(round), // Toast.LENGTH_LONG).show(); } } public class Sprite { Game game; private Bitmap bmp; public Sprite(Game game, Bitmap bmp) { // TODO Auto-generated constructor stub this.game = game; this.bmp = bmp; } } } Here is the LogCat if it helps.... 08-22 23:18:06.980: D/AndroidRuntime(28151): Shutting down VM 08-22 23:18:06.980: W/dalvikvm(28151): threadid=1: thread exiting with uncaught exception (group=0xb3f6f4f0) 08-22 23:18:06.980: D/AndroidRuntime(28151): procName from cmdline: com.example.killthemall 08-22 23:18:06.980: E/AndroidRuntime(28151): in writeCrashedAppName, pkgName :com.example.killthemall 08-22 23:18:06.980: D/AndroidRuntime(28151): file written successfully with content: com.example.killthemall StringBuffer : ;com.example.killthemall 08-22 23:18:06.990: I/Process(28151): Sending signal. PID: 28151 SIG: 9 08-22 23:18:06.990: E/AndroidRuntime(28151): FATAL EXCEPTION: main 08-22 23:18:06.990: E/AndroidRuntime(28151): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.killthemall/com.example.killthemall.Game}: java.lang.NullPointerException 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.os.Handler.dispatchMessage(Handler.java:99) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.os.Looper.loop(Looper.java:130) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread.main(ActivityThread.java:3683) 08-22 23:18:06.990: E/AndroidRuntime(28151): at java.lang.reflect.Method.invokeNative(Native Method) 08-22 23:18:06.990: E/AndroidRuntime(28151): at java.lang.reflect.Method.invoke(Method.java:507) 08-22 23:18:06.990: E/AndroidRuntime(28151): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880) 08-22 23:18:06.990: E/AndroidRuntime(28151): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:638) 08-22 23:18:06.990: E/AndroidRuntime(28151): at dalvik.system.NativeStart.main(Native Method) 08-22 23:18:06.990: E/AndroidRuntime(28151): Caused by: java.lang.NullPointerException 08-22 23:18:06.990: E/AndroidRuntime(28151): at com.example.killthemall.Game$KhogenView.<init>(Game.java:96) 08-22 23:18:06.990: E/AndroidRuntime(28151): at com.example.killthemall.Game.onCreate(Game.java:58) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 08-22 23:18:06.990: E/AndroidRuntime(28151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 08-22 23:18:06.990: E/AndroidRuntime(28151): ... 11 more 08-22 23:18:18.050: D/AndroidRuntime(28191): Shutting down VM 08-22 23:18:18.050: W/dalvikvm(28191): threadid=1: thread exiting with uncaught exception (group=0xb3f6f4f0) 08-22 23:18:18.050: I/Process(28191): Sending signal. PID: 28191 SIG: 9 08-22 23:18:18.050: D/AndroidRuntime(28191): procName from cmdline: com.example.killthemall 08-22 23:18:18.050: E/AndroidRuntime(28191): in writeCrashedAppName, pkgName :com.example.killthemall 08-22 23:18:18.050: D/AndroidRuntime(28191): file written successfully with content: com.example.killthemall StringBuffer : ;com.example.killthemall 08-22 23:18:18.050: E/AndroidRuntime(28191): FATAL EXCEPTION: main 08-22 23:18:18.050: E/AndroidRuntime(28191): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.killthemall/com.example.killthemall.Game}: java.lang.NullPointerException 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.os.Handler.dispatchMessage(Handler.java:99) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.os.Looper.loop(Looper.java:130) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread.main(ActivityThread.java:3683) 08-22 23:18:18.050: E/AndroidRuntime(28191): at java.lang.reflect.Method.invokeNative(Native Method) 08-22 23:18:18.050: E/AndroidRuntime(28191): at java.lang.reflect.Method.invoke(Method.java:507) 08-22 23:18:18.050: E/AndroidRuntime(28191): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880) 08-22 23:18:18.050: E/AndroidRuntime(28191): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:638) 08-22 23:18:18.050: E/AndroidRuntime(28191): at dalvik.system.NativeStart.main(Native Method) 08-22 23:18:18.050: E/AndroidRuntime(28191): Caused by: java.lang.NullPointerException 08-22 23:18:18.050: E/AndroidRuntime(28191): at com.example.killthemall.Game$KhogenView.<init>(Game.java:96) 08-22 23:18:18.050: E/AndroidRuntime(28191): at com.example.killthemall.Game.onCreate(Game.java:58) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 08-22 23:18:18.050: E/AndroidRuntime(28191): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 08-22 23:18:18.050: E/AndroidRuntime(28191): ... 11 more

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  • What is the best way to work with large databases in Java depending on context?

    - by Singletony
    Hi guys. We are trying to figure out the best practice for working with very large DBs in Java. What we do is a kind of BI, i.e analyzing very large DBs, and using them to create intermediate DBs that represent intelligent knowledge of the DBs. We are currently using JDBC, and just preforming queries using a ResultSet. As more and more data is being created, we are wondering whether more appropriate ways exist for parsing and manipulating these large DBs: We need to support 'chunk' manipulation and not an entire DB at once(e.g. limit in JDBC, very poor performance) We do not need to be constantly connected since we are just pulling results and creating new tables of our own. We want to understand JDBC alternatives, with respect to advantages and disadvantages. Whether you think JDBC is the way to go or not, what are the best practices to go by depending on context (e.g. for large DBs queried in chunks) ? If my question is not clear, I will gladly elaborate! THANK YOU SO MUCH!

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  • How can I create a square 10x10 grid using nested for loops in Java? [migrated]

    - by help
    I'm trying to create a 10x10 grid using for loops in Java. I'm able to create rows going up and down but not repeating. for(int i = 1; i < temperatures.length; i++) { temperatures[i] = (temperatures[i-1] + 12) / 2; //takes average of 12 and previous temp } } public void paint(Graphics g) { for(int y = 1; y < 9; y++) { g.setColor(Color.black); g.drawRect(10, 10, 10, 10); g.drawRect(10, 10, 10, 20); g.drawRect(10, 10, 10, 30); g.drawRect(10, 10, 10, 40); g.drawRect(10, 10, 10, 50); g.drawRect(10, 10, 10, 60); g.drawRect(10, 10, 10, 70); g.drawRect(10, 10, 10, 80); g.drawRect(10, 10, 10, 90); g.drawRect(10, 10, 10, 100); for(int x = 1; x < 9; x++) { g.setColor(Color.black); g.drawRect(10, 10, 10, 10); g.drawRect(10, 10, 20, 10); g.drawRect(10, 10, 30, 10); g.drawRect(10, 10, 40, 10); g.drawRect(10, 10, 50, 10); g.drawRect(10, 10, 60, 10); g.drawRect(10, 10, 70, 10); g.drawRect(10, 10, 80, 10); g.drawRect(10, 10, 90, 10); g.drawRect(10, 10, 100, 10); } } } }

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  • What techniques would you use for a next generation java web application?

    - by jakob
    I'm working at a site similar to Foursquare and Yelp, with approximately 100000 unique requests each week that generates content, growing steadily. We are currently using: Seam as Java web framework. MySQL as DB Hibernate as ORM Hibernate Search as Index EhCache for Caching. Since our site is slowly growing out of the current setup and has a lot of legacy code, it is time for us to start thinking about a major refactoring/changing setup. Web framework We are not ready to change the language but we are leaning towards Spring Web Framework, since: Seam is no more. Almost all of us have worked with Spring and liked it. DB and ORM We have done a little research and we are thinking about MongoDB. Index Do we need to have a separate Index if we use MongoDB? Cache ? So my question is basically: If you take Spring Web Framework and MongoDB into consideration, how would a good setup be for a web application that is growing and handles a lot of logged in users generating input and performing searches?

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  • Is it customary to write Java domain objects / data transfer objects with public member variables on mobile platforms?

    - by Sean Mickey
    We performed a code review recently of mobile application Java code that was developed by an outside contractor and noticed that all of the domain objects / data transfer objects are written in this style: public class Category { public String name; public int id; public String description; public int parentId; } public class EmergencyContact { public long id; public RelationshipType relationshipType; public String medicalProviderType; public Contact contact; public String otherPhone; public String notes; public PersonName personName; } Of course, these members are then accessed directly everywhere else in the code. When we asked about this, the developers told us that this is a customary performance enhancement design pattern that is used on mobile platforms, because mobile devices are resource-limited environments. It doesn't seem to make sense; accessing private members via public getters/setters doesn't seem like it could add much overhead. And the added benefits of encapsulation seem to outweigh the benefits of this coding style. Is this generally true? Is this something that is normally done on mobile platforms for the reasons given above? All feedback welcome and appreciated -

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  • New college grad, psychology major, wants to code professionally. Should I get Sun Java-certified?

    - by Anita
    I just graduated from a fairly well-known liberal arts college in May. Interestingly, I majored in psychology, with a concentration in social psychology. In college I took Intro to Computer Science and hated it (used to blame it on myself; now I blame it on the professor :) However, I've always wanted to be a programmer, and finally got my wish by getting hired by a company that was willing to let me learn coding from scratch in exchange for low pay. Well, what do you know, I just got laid off this morning, and need a new job by November to pay the bills. I loved the coding part of my job at the company, and managed to learn enough Java to feel competent in the job and curious to learn more. I think my goal now is to become a professional programmer. I still know very little (never used Swing, for example) but nothing that a good book can't fix. That's the background anyway; sorry for the rambling - I'm still in shock from the layoff :( It seems to me the quickest way to get noticed by companies, without a CS degree, is by getting certification. I'm halfway through studying for the SCJP and can probably sit for an exam in a week or two. Am I right in my assumption that certs will help in my case? And in general, do I have a bat's chance in hell of making it against formally trained programmers? My assets are really just raw intelligence and intense curiosity; well, maybe a love for problem-solving too. Thanks all - feel free to edit/tag the post!

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  • What is the difference between Callback<T> and Java 8's Supplier<T>?

    - by Dan Pantry
    I've been switching over to Java from C# after some recommendations from some over at CodeReview. So, when I was looking into LWJGL, one thing I remembered was that every call to Display must be executed on the same thread that the Display.create() method was invoked on. Remembering this, I whipped up a class that looks a bit like this. public class LwjglDisplayWindow implements DisplayWindow { private final static int TargetFramesPerSecond = 60; private final Scheduler _scheduler; public LwjglDisplayWindow(Scheduler displayScheduler, DisplayMode displayMode) throws LWJGLException { _scheduler = displayScheduler; Display.setDisplayMode(displayMode); Display.create(); } public void dispose() { Display.destroy(); } @Override public int getTargetFramesPerSecond() { return TargetFramesPerSecond; } @Override public Future<Boolean> isClosed() { return _scheduler.schedule(() -> Display.isCloseRequested()); } } While writing this class you'll notice that I created a method called isClosed() that returns a Future<Boolean>. This dispatches a function to my Scheduler interface (which is nothing more than a wrapper around an ScheduledExecutorService. While writing the schedule method on the Scheduler I noticed that I could either use a Supplier<T> argument or a Callable<T> argument to represent the function that is passed in. ScheduledExecutorService didn't contain an override for Supplier<T> but I noticed that the lambda expression () -> Display.isCloseRequested() is actually type compatible with both Callable<bool> and Supplier<bool>. My question is, is there a difference between those two, semantically or otherwise - and if so, what is it, so I can adhere to it?

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  • Why is Javascript used in MongoDB and CouchDB instead of other languages such as Java, C++?

    - by startup007
    I asked this question on SO but was suggested to try here. So here it goes: My understanding of Javascript so far has been that it is a client-side language that capture events and makes a web-page dynamic. But on reading the comparison between MongoDB and CouchDB I noticed that both are using Javascript. This makes me wonder the reason behind the choice of JavaScript over other conventional languages. I guess I am trying to understand the role of JavaScript and its advantages over other languages. Update: I am not asking about the languages / drivers supported by the two databases. The comparison says: Both CouchDB and MongoDB make use of Javascript. CouchDB uses Javascript extensively including in the building of views. MongoDB also supports running arbitrary javascript functions server-side and uses javascript for map/reduce operations. My lack of understanding pertains to why is Javascript being used at all for the backend work. Why is it preferred for building views in CouchDB, or for using map/reduce operations? Why C/C++ or Java were not used? What are the advantages in using Javascript for such back-end work?

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  • android app unable to connect to the hsqldb server

    - by Chinta
    I am trying to connect my android app to the hsql db server. Server runs on computer-1. I can connect to the db server from local machine through java as well as Db-visualizer. I can connect to the db server from another computer(computer-2) using Db-visualizer with comouter-1 ip address. Now trying to connect from my app in Nexus 7 the same way I was connecting from computer-2. I am getting "No Suitable Driver" error. Below is the log. 11-02 12:01:41.235: W/System.err(9803): connection string <jdbc:hsqldb:hsql://192.168.2.6:9001/qBank> 11-02 12:01:41.235: W/System.err(9803): user id string <SA> 11-02 12:01:41.235: W/System.err(9803): password string <> 11-02 12:01:41.235: W/System.err(9803): ERROR: failed to get connection. 11-02 12:01:41.235: W/System.err(9803): java.sql.SQLException: No suitable driver 11-02 12:01:41.235: W/System.err(9803): at java.sql.DriverManager.getConnection(DriverManager.java:186) 11-02 12:01:41.235: W/System.err(9803): at java.sql.DriverManager.getConnection(DriverManager.java:213) 11-02 12:01:41.235: W/System.err(9803): at com.scan.util.GatherData.getConnection(GatherData.java:135)

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  • From Oracle PL/SQL Developer to Java programmer - Is it a good decision? [on hold]

    - by user3554231
    I will explain my question in simple words. I have little over 1 year experience in Oracle. My dream is to be "called" as a 'Developer', be it database developer if not software developer. But right now I don't develop anything neither I am in good touch with PL/SQL and other Oracle Utilites like SQL*LOADER, shell scripting and stuff like that as I am only a System Analyst where I analyze and configure database using SQL queries. To be honest, I know very basic PL/SQL and good knowledge in SQL but that won't ever give me a chance to be a developer as I am lagging way behind the "real" developers knowledge. Now I feel I should learn JAVA as well so that I can cope up with the competition. But I am too scared to learn new things as it will take much more time which will indirectly increase my useless work experince(just analyzing) which values nothing in todays market. Moreover that, I am too lazy to work hard i.e. to study and not to work during office hours. To sum it up I am lazy and confused and scared but I want to learn things as well but don't know if I am intelligent enough to learn whole of PL/SQL or to master any other language. Is there any other way from which I can feel confident? Actually I even feel sometimes that after 2-3 years if I still don't achieve my goal, I won't ever be able to reach my destination. I just want to live my dream of being a developer. Give me some tips and hopes but not false hopes.

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  • Why do arrays in java choose the biggest? [closed]

    - by Trycon
    I'm new to java so I was reading my book with these code: public class mainb1 { public static void main (String[] args) { //datatype name = expression; //food int min, max; int num[] = new int[10]; num[0]=99; num[1]=90; num[2]=-100; num[3]=100; num[4]=23; num[5]=50; num[6]=123; num[7]=3123; num[8]=2; num[9]=923; min=max=num[1]; for(int x=0;x<10;x++) { if(num[x]<min)min=num[x]; if(num[x]>max)max=num[x]; } System.out.println("Min: "+min+" max: "+max); } } It chose the biggest and the smallest. I don't get it if max was 99, then the last one that is lesser than min is 2? How did this array choose to pick the smallest and the biggest? Can someone explain?

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  • JavaOne SF??????????????!&????????

    - by OTN-J Master
    JavaOne 2012 San Francisco????????????????????????!??????????????????????????????????????????????????Java??????????????????????????? ??????????? JavaOne??????????????????YouTube?Java Channel?”JavaOne playlist”??????? ????? ???? ????????????????Oracle Media Network?”JavaOne 2012 channel”???????(??????·??????????????) ????????·?????/BOF/???????? ??????????????????????????JavaOne????????JavaOne Content Catalog??????????????????????????(???)??????????????????”Media”?????????????????????????????????????????????????? ??? ???????? ??? JavaOne???????????????????Oracle Days????????? ? ?????????????? ????????????????????????????????? 2012? Java????????? ??: 10?31?(?) 15:00-15:45??: ??????????? ????????1-4-1(????????????) ??:2012 ? 4 ? ????7?????? JavaOne ????? Java ????????????????????????????????? ???JavaOne 2012 ?????? Java ?????????????????????????????????????????? Java ??????????????????????????? ??: ??????????Fusion Middleware???? ????????????? Java?????????? ??  

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  • Java POI 3.6 XWPF usage guidelines (reading content of docx file)

    - by Mr CooL
    I assume the following objects should be used to read contents of DOCX file: XWPFDocument XWPFWordExtractor However, somewhere the compiler warns me from not including the correct libraries needed in classpath. I think I'm kinda lost for not knowing which jar file is the right one to include for this since there are so many jar files (POI libraries). My project so far involve in reading doc and docx files as part of the project. I've managed to read the contents of doc file. However, for docx file, I'm still having problem with that. Can anyone show the guidelines in terms of the codes and libraries needed (jar files) to read the content of docx file? I'm trying to limit the libraries need to be added on into project since I need to read doc and docx only. The following works for doc: fs = new POIFSFileSystem(new FileInputStream(fileName)); HWPFDocument doc = new HWPFDocument(fs); WordExtractor we = new WordExtractor(doc); String[] p = we.getParagraphText();

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  • Machine learning challenge: diagnosing program in java/groovy (datamining, machine learning)

    - by Registered User
    Hi All! I'm planning to develop program in Java which will provide diagnosis. The data set is divided into two parts one for training and the other for testing. My program should learn to classify from the training data (BTW which contain answer for 30 questions each in new column, each record in new line the last column will be diagnosis 0 or 1, in the testing part of data diagnosis column will be empty - data set contain about 1000 records) and then make predictions in testing part of data :/ I've never done anything similar so I'll appreciate any advice or information about solution to similar problem. I was thinking about Java Machine Learning Library or Java Data Mining Package but I'm not sure if it's right direction... ? and I'm still not sure how to tackle this challenge... Please advise. All the best!

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  • Java 2D Game Frameworks

    - by Software Monkey
    I have been looking at frameworks for writing 2D games in Java - part of a growing desire to rediscover my roots in writing those simple but addictive video games. I have googled and found some possibilities, but it's hard to judge which is best without investing significant time in each. Does anyone out there have any recommendations from experience, preferably with a list of pro's and con's for the framework. NOTE: I am not looking so much for comparisons between frameworks but, rather, feedback on any given framework from actually having used it firsthand, or knowing someone who has. The other possibility I am considering is rolling my own, but would rather not. EDIT: I am targeting Java on the Desktop, and expect capable machines, though not state of the art. Some of the 2D engines I have found: Free PulpCore (License: BSD) Slick2D (License: BSD) GTGE - Golden T Game Engine JGame GAGE - Genuine Advantage Gaming Engine GameFrame for Java Basilisk (2D and 3D) Free for non-commercial use Genuts EasyWay - a high-level 2D engine

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  • Open payment gateway libraries for Java, Python, Ruby, and PHP

    - by Tauren
    I'm looking for generic and open source payment libraries that support many different payment processor APIs. In other words, I'd like to develop an application using a single payment processing API, but be able to easily switch between payment gateways, such as Authorize.Net, Payflow Pro, Braintree, PayPal, Google, Amazon, etc. This question gives some Java solutions, but the suggestions all look horrible. Isn't there anything more like ActiveMerchant for Java? I really need a good Java solution, to the point of building my own if necessary. But I don't want to reinvent the wheel if it exists. Are there any solutions for Python or PHP? Ideally, I'd like to find something similar to Ruby's ActiveMerchant, which looks exceptionally complete. Are there any other Ruby solutions?

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  • Java Media Framework always generating multicast packets with TTL=1

    - by Liam
    I need to generate a G711 multicast audio stream, and came across the AVTransmit2 sample as part of the Java Media Framework. Fundementally this works, however the multicast packets all have TTL set to 1. I found some documentation that suggested the SessionAddress could specify a TTL value, so I've tried changing that i.e. destAddr = new SessionAddress( ipAddr, port, 255); I also found some comments that the problems might be due to java defaulting to IPv6, so I've tried to force it to ipv4 by starting it like this: java -Djava.net.preferIPv4Stack=true -classpath "." AVTransmit2 javasound://8000 239.1.10.65 20480 However looking in wireshark, the packets still have TTL=1 I'm using JMF2.1.1e Any suggestions how to resolve this?

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  • How to throttle login attemps in Java webapp?

    - by Jörn Zaefferer
    I want to implement an efficient mechanism to throttle login attemps in my Java web application, to prevent brute-force attacks on user accounts. Jeff explained the why, but not the how. Simon Willison showed an implementation in Python for Django: That doesn't really help me along as I can't use memcached nor Django. Porting his ideas from scratch doesn't seem like a great either - I don't want to reinvent the wheel. I found one Java implementation, though it seems rather naiive: Instead of a LRU cache, it just clears all entries after 15 minutes. EHCache could be an alternative for memcached, but I don't have any experience with it and don't really want to intoduce yet another technology if there are better alternatives for this task. So, whats a good way to implement login throttling in Java?

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