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POrun() method in Timer Task is not executing - Android
 

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  1. POrun() method in Timer Task is not executing - Android
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    <p>InputStream and OutputStream Declarations:</p> <pre><code>public OutputStream out = null; public InputStream inputStr = null; </code></pre> <p>onCreate() code starting the TimerTask:</p> <pre><code>@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Log.e(LOG_TAG, "Start Repeat Timer"); TimerTask task = new RepeatingTask(); Timer timer = new Timer(); timer.scheduleAtFixedRate(task, 0, 3000); Log.e(LOG_TAG, "Started Repeat Timer"); out = socket.getOutputStream(); inputStr = socket.getInputStream(); } </code></pre> <p>Timer Task Code: </p> <pre><code>public class RepeatingTask extends TimerTask { //private int len = 0; //private byte[] input = new byte[len]; public RepeatingTask() { Log.e(LOG_TAG, "In RepeatingTask()"); Log.e(LOG_TAG, "Before inputJSON String"); String hello = "hello world"; //String inputJSON = getStringFromBuffer(new InputStreamReader(socket.getInputStream())); try { inputJSON = ConvertByteArrayToString(readBytes(inputStr)); sendBytes(ConvertStringToByteArray(inputJSON), 0, ConvertStringToByteArray(inputJSON).length); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } //Convert Log.e(LOG_TAG, "After inputJSON String:" + inputJSON); //LOOK HERE FIRST //inputJSON is what is received back from the server - Take the inputJSON //String and use regular expressions HERE to remove all the other characters in the //string except the payload JSON. //refreshViewModels(inputJSON); } @Override public void run() { /*try { Log.e(LOG_TAG, "IN REPEATINGTHREAD-INPUTJSON"); //outputstrwr.write(outputJSONserv); //UNCOMMENT IF NEED TO SEND DATA TO GET JSON BACK //inputJSON = ConvertByteArrayToString(getBytesFromInputStream(inputStr)); inputJSON = ConvertByteArrayToString(getFileBytes(inputStr)); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.e(LOG_TAG, "IN REPEATINGTHREAD-INPUTJSON2:" + inputJSON); refreshViewModels(inputJSON);*/ try { Log.e(LOG_TAG, "IN REPEATINGTHREAD-INPUTJSON"); //outputstrwr.write(outputJSONserv); //UNCOMMENT IF NEED TO SEND DATA TO GET JSON BACK //byte[] = myByteArray = readBytes(inputStr); sendBytes(ConvertStringToByteArray(outputJSONserv), 0, ConvertStringToByteArray(outputJSONserv).length); //sendBytes(myByteArray, 0, myByteArray.length); Log.e(LOG_TAG, "AFTER SENDING DATA"); //inputJSON = ConvertByteArrayToString(getBytesFromInputStream(inputStr)); inputJSON = ConvertByteArrayToString(readBytes(inputStr)); Log.e(LOG_TAG, "IN REPEATINGTHREAD-INPUTJSON2:" + inputJSON); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.e(LOG_TAG, "IN REPEATINGTHREAD-INPUTJSON3:" + inputJSON); refreshViewModels(inputJSON); } } </code></pre> <p>inputStr is an InputStream used to read the bytes and convert them into a string. </p> <p>ConvertByteArrayToString() just converts the Byte Array to String &amp; ConvertStringToByteArray() converts a String into a Byte[] so that the data can be sent using sendBytes(byte[], int, int). </p> <p>I'm trying to figure out why my code gets stuck in this try/catch statement without any exceptions being thrown:</p> <pre><code> try { inputJSON = ConvertByteArrayToString(readBytes(inputStr)); sendBytes(ConvertStringToByteArray(inputJSON), 0, ConvertStringToByteArray(inputJSON).length); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } </code></pre> <p>Here is my sendBytes() method:</p> <pre><code>public void sendBytes(byte[] myByteArray, int start, int len) throws IOException { if (len &lt; 0) throw new IllegalArgumentException("Negative length not allowed"); if (start &lt; 0 || start &gt;= myByteArray.length) throw new IndexOutOfBoundsException("Out of bounds: " + start); // Other checks if needed. // May be better to save the streams in the support class; // just like the socket variable. OutputStream out = socket.getOutputStream(); DataOutputStream dos = new DataOutputStream(out); dos.writeInt(len); if (len &gt; 0) { dos.write(myByteArray, start, len); } } </code></pre> <p>Here is my readBytes() method:</p> <pre><code>public byte[] readBytes(InputStream in) throws IOException { // Again, probably better to store these objects references in the support class in = socket.getInputStream(); DataInputStream dis = new DataInputStream(in); int len = dis.readInt(); byte[] data = new byte[len]; if (len &gt; 0) { dis.readFully(data); } return data; } </code></pre> <p>Here is the code for the ConvertByteArrayToString() and ConvertStringToByteArray() methods:</p> <pre><code>public String ConvertByteArrayToString(byte[] b) { // byte[] to string String input = new String(b); return input; } public byte[] ConvertStringToByteArray(String str) { // string to byte[] byte[] bytes = str.getBytes(); return bytes; } </code></pre> <p>Here is the logcat output I'm seeing:</p> <pre><code> E/AndroidClient(17109): Start Repeat Timer E/AndroidClient(17109): Before inputJSON String D/WindowManager( 110): Home Key Test: false :false </code></pre> <p>Any help or pointers in the right direction would be appreciated.</p>
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    1. COWhat do you mean "gets stuck" ?
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      1. USJustin Jasmann
    2. CO"Before inputJSON String" get print out in my logcat but "After inputJSON String" so it is getting hung up in the try/catch statement and I'm not sure why.
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    3. COMy initial guess is that your `Convert` or `byte` methods aren't returning correctly.
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      1. UShwrdprkns
 

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