I'm trying to develop an application which uses HttpRequest for requesting a web page. The problem is that I still can't find the right way to get the suffix in the connection string for OS 4.6.1.
Thanks.
The links I believe I used to create my connection strings, pre OS 5.0, were these two:
http://supportforums.blackberry.com/t5/Java-Development/Different-ways-to-make-an-HTTP-or-socket-connection/ta-p/445879
http://docs.blackberry.com/en/developers/deliverables/34480/Network_transport_options_1293321_11.jsp
BlackBerry of course supports several different transports (Wifi, WAP, BIS, etc.). You probably want to decide which transport you would like to use, and create your connection string depending on which transports are available at any one time, and on your priority.
Here's some more sample code to download from blackberry.com that helps build connection string suffixes. See the attachment links near the bottom for the actual downloads.
Also, if you're in a time crunch, and don't have time to read the resources I listed in my other answer, and just want some quick code, I remember there was an implementation in BlackBerry's original Facebook SDK that looked close to what I wrote myself (sorry, I can't post that code I wrote, because it's my client's). But, the Facebook SDK implementation appears to be free to publish. I can't find a link to it anymore, but I'll paste it below for your enjoyment:
/**
* Copyright (c) E.Y. Baskoro, Research In Motion Limited.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* This License shall be included in all copies or substantial
* portions of the Software.
*
* The name(s) of the above copyright holders shall not be used
* in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization.
*
*/
package com.blackberry.util.network;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Vector;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import com.blackberry.util.log.Logger;
import net.rim.device.api.io.http.HttpHeaders;
import net.rim.device.api.io.http.HttpProtocolConstants;
import net.rim.device.api.servicebook.ServiceBook;
import net.rim.device.api.servicebook.ServiceRecord;
import net.rim.device.api.system.Branding;
import net.rim.device.api.system.CoverageInfo;
import net.rim.device.api.system.DeviceInfo;
import net.rim.device.api.system.WLANInfo;
public class HttpConnectionFactory {
public static final int TRANSPORT_WIFI = 1;
public static final int TRANSPORT_BES = 2;
public static final int TRANSPORT_BIS = 4;
public static final int TRANSPORT_DIRECT_TCP = 8;
public static final int TRANSPORT_WAP2 = 16;
public static final int TRANSPORT_SIM = 32;
public static final int TRANSPORTS_ANY = TRANSPORT_WIFI | TRANSPORT_BES | TRANSPORT_BIS | TRANSPORT_DIRECT_TCP | TRANSPORT_WAP2 | TRANSPORT_SIM;
public static final int TRANSPORTS_AVOID_CARRIER = TRANSPORT_WIFI | TRANSPORT_BES | TRANSPORT_BIS | TRANSPORT_SIM;
public static final int TRANSPORTS_CARRIER_ONLY = TRANSPORT_DIRECT_TCP | TRANSPORT_WAP2 | TRANSPORT_SIM;
public static final int DEFAULT_TRANSPORT_ORDER[] = { TRANSPORT_SIM, TRANSPORT_WIFI, TRANSPORT_BIS, TRANSPORT_BES, TRANSPORT_WAP2, TRANSPORT_DIRECT_TCP };
private static final int TRANSPORT_COUNT = DEFAULT_TRANSPORT_ORDER.length;
// private static ServiceRecord srMDS[], srBIS[], srWAP2[], srWiFi[];
private static ServiceRecord srWAP2[];
private static boolean serviceRecordsLoaded = false;
private int transports[];
private int lastTransport = -1;
protected Logger log = Logger.getLogger(getClass());
public HttpConnectionFactory() {
this(0);
}
public HttpConnectionFactory(int allowedTransports) {
this(transportMaskToArray(allowedTransports));
}
public HttpConnectionFactory(int transportPriority[]) {
if (!serviceRecordsLoaded) {
loadServiceBooks(false);
}
transports = transportPriority;
}
public static String getUserAgent() {
StringBuffer sb = new StringBuffer();
sb.append("BlackBerry");
sb.append(DeviceInfo.getDeviceName());
sb.append("/");
sb.append(DeviceInfo.getSoftwareVersion());
sb.append(" Profile/");
sb.append(System.getProperty("microedition.profiles"));
sb.append(" Configuration/");
sb.append(System.getProperty("microedition.configuration"));
sb.append(" VendorID/");
sb.append(Branding.getVendorId());
return sb.toString();
}
public static String getProfile() {
StringBuffer sb = new StringBuffer();
sb.append("http://www.blackberry.net/go/mobile/profiles/uaprof/");
sb.append(DeviceInfo.getDeviceName());
sb.append("/");
sb.append(DeviceInfo.getSoftwareVersion().substring(0, 3)); //RDF file format is 4.5.0.rdf (does not include build version)
sb.append(".rdf");
return sb.toString();
}
public HttpConnection getHttpConnection(String pURL) {
return getHttpConnection(pURL, null, null);
}
public HttpConnection getHttpConnection(String pURL, HttpHeaders headers) {
return getHttpConnection(pURL, headers, null);
}
public HttpConnection getHttpConnection(String pURL, byte[] data) {
return getHttpConnection(pURL, null, data);
}
public HttpConnection getHttpConnection(String pURL, HttpHeaders headers, byte[] data) {
if ((pURL.length() > 5) && pURL.startsWith("cod://")) {
return new LocalHttpConnection(pURL);
}
int curIndex = 0;
HttpConnection con = null;
while ((con = tryHttpConnection(pURL, curIndex, headers, data)) == null) {
try {
curIndex = nextTransport(curIndex);
} catch (HttpConnectionFactoryException e) {
e.printStackTrace();
break;
} finally {
}
}
if (con != null) {
setLastTransport(transports[curIndex]);
}
return con;
}
private int nextTransport(int curIndex) throws HttpConnectionFactoryException {
if ((curIndex >= 0) && (curIndex < transports.length - 1)) {
return curIndex + 1;
} else {
throw new HttpConnectionFactoryException("No more transport available.");
}
}
private HttpConnection tryHttpConnection(String pURL, int tIndex, HttpHeaders headers, byte[] data) {
HttpConnection con = null;
OutputStream os = null;
log.debug("Trying " + getTransportName(transports[tIndex]) + "... ");
switch (transports[tIndex]) {
case TRANSPORT_SIM:
try {
con = getSimConnection(pURL, false);
} catch (IOException e) {
log.debug(e.getMessage());
} finally {
break;
}
case TRANSPORT_WIFI:
try {
con = getWifiConnection(pURL);
} catch (IOException e) {
log.debug(e.getMessage());
} finally {
break;
}
case TRANSPORT_BES:
try {
con = getBesConnection(pURL);
} catch (IOException e) {
log.debug(e.getMessage());
} finally {
break;
}
case TRANSPORT_BIS:
try {
con = getBisConnection(pURL);
} catch (IOException e) {
log.debug(e.getMessage());
} finally {
break;
}
case TRANSPORT_DIRECT_TCP:
try {
con = getTcpConnection(pURL);
} catch (IOException e) {
} finally {
break;
}
case TRANSPORT_WAP2:
try {
con = getWap2Connection(pURL);
} catch (IOException e) {
log.debug(e.getMessage());
} finally {
break;
}
}
log.debug("con = " + con);
if (con != null) {
try {
log.debug("url = " + con.getURL());
//add headers to connection
if (headers != null) {
int size = headers.size();
for (int i = 0; i < size;) {
String header = headers.getPropertyKey(i);
String value = headers.getPropertyValue(i++);
if (value != null) {
con.setRequestProperty(header, value);
}
}
}
// post data
if (data != null) {
con.setRequestMethod(HttpConnection.POST);
con.setRequestProperty(HttpProtocolConstants.HEADER_CONTENT_TYPE, HttpProtocolConstants.CONTENT_TYPE_APPLICATION_X_WWW_FORM_URLENCODED);
con.setRequestProperty(HttpProtocolConstants.HEADER_CONTENT_LENGTH, String.valueOf(data.length));
os = con.openOutputStream();
os.write(data);
} else {
con.setRequestMethod(HttpConnection.GET);
}
} catch (IOException e) {
e.printStackTrace();
}
}
return con;
}
public int getLastTransport() {
return lastTransport;
}
public String getLastTransportName() {
return getTransportName(getLastTransport());
}
private void setLastTransport(int pLastTransport) {
lastTransport = pLastTransport;
}
private HttpConnection getSimConnection(String pURL, boolean mdsSimulatorRunning) throws IOException {
if (DeviceInfo.isSimulator()) {
if (mdsSimulatorRunning) {
return getConnection(pURL, ";deviceside=false", null);
} else {
return getConnection(pURL, ";deviceside=true", null);
}
}
return null;
}
private HttpConnection getBisConnection(String pURL) throws IOException {
if (CoverageInfo.isCoverageSufficient(4 /* CoverageInfo.COVERAGE_BIS_B */)) {
return getConnection(pURL, ";deviceside=false;ConnectionType=mds-public", null);
}
return null;
}
private HttpConnection getBesConnection(String pURL) throws IOException {
if (CoverageInfo.isCoverageSufficient(2 /* CoverageInfo.COVERAGE_MDS */)) {
return getConnection(pURL, ";deviceside=false", null);
}
return null;
}
private HttpConnection getWifiConnection(String pURL) throws IOException {
if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED) {
return getConnection(pURL, ";interface=wifi", null);
}
return null;
}
private HttpConnection getWap2Connection(String pURL) throws IOException {
if (CoverageInfo.isCoverageSufficient(1 /* CoverageInfo.COVERAGE_DIRECT */) && (srWAP2 != null) && (srWAP2.length != 0)) {
return getConnection(pURL, ";deviceside=true;ConnectionUID=", srWAP2[0].getUid());
}
return null;
}
private HttpConnection getTcpConnection(String pURL) throws IOException {
if (CoverageInfo.isCoverageSufficient(1 /* CoverageInfo.COVERAGE_DIRECT */)) {
return getConnection(pURL, ";deviceside=true", null);
}
return null;
}
private HttpConnection getConnection(String pURL, String transportExtras1, String transportExtras2) throws IOException {
StringBuffer fullUrl = new StringBuffer();
fullUrl.append(pURL);
if (transportExtras1 != null) {
fullUrl.append(transportExtras1);
}
if (transportExtras2 != null) {
fullUrl.append(transportExtras2);
}
return (HttpConnection) Connector.open(fullUrl.toString());
}
public static void reloadServiceBooks() {
loadServiceBooks(true);
}
private static synchronized void loadServiceBooks(boolean reload) {
if (serviceRecordsLoaded && !reload) {
return;
}
ServiceBook sb = ServiceBook.getSB();
ServiceRecord[] records = sb.getRecords();
Vector mdsVec = new Vector();
Vector bisVec = new Vector();
Vector wap2Vec = new Vector();
Vector wifiVec = new Vector();
if (!serviceRecordsLoaded) {
for (int i = 0; i < records.length; i++) {
ServiceRecord myRecord = records[i];
String cid, uid;
if (myRecord.isValid() && !myRecord.isDisabled()) {
cid = myRecord.getCid().toLowerCase();
uid = myRecord.getUid().toLowerCase();
if ((cid.indexOf("wptcp") != -1) && (uid.indexOf("wap2") != -1) && (uid.indexOf("wifi") == -1) && (uid.indexOf("mms") == -1)) {
wap2Vec.addElement(myRecord);
}
}
}
srWAP2 = new ServiceRecord[wap2Vec.size()];
wap2Vec.copyInto(srWAP2);
wap2Vec.removeAllElements();
wap2Vec = null;
serviceRecordsLoaded = true;
}
}
public static int[] transportMaskToArray(int mask) {
if (mask == 0) {
mask = TRANSPORTS_ANY;
}
int numTransports = 0;
for (int i = 0; i < TRANSPORT_COUNT; i++) {
if ((DEFAULT_TRANSPORT_ORDER[i] & mask) != 0) {
numTransports++;
}
}
int transports[] = new int[numTransports];
int index = 0;
for (int i = 0; i < TRANSPORT_COUNT; i++) {
if ((DEFAULT_TRANSPORT_ORDER[i] & mask) != 0) {
transports[index++] = DEFAULT_TRANSPORT_ORDER[i];
}
}
return transports;
}
private static String getTransportName(int transport) {
String tName;
switch (transport) {
case TRANSPORT_WIFI:
tName = "WIFI";
break;
case TRANSPORT_BES:
tName = "BES";
break;
case TRANSPORT_BIS:
tName = "BIS";
break;
case TRANSPORT_DIRECT_TCP:
tName = "TCP";
break;
case TRANSPORT_WAP2:
tName = "WAP2";
break;
case TRANSPORT_SIM:
tName = "SIM";
break;
default:
tName = "UNKNOWN";
break;
}
return tName;
}
}
Related
I am using following code to download images from server
public Bitmap connectServerForImage(String url) {
HttpConnection httpConnection = null;
DataOutputStream httpDataOutput = null;
InputStream httpInput = null;
int rc;
Bitmap bitmp = null;
try {
httpConnection = (HttpConnection) Connector.open(url+ ConnectionType.getConnectionType());
rc = httpConnection.getResponseCode();
if (rc != HttpConnection.HTTP_OK) {
throw new IOException("HTTP response code: " + rc);
}
httpInput = httpConnection.openInputStream();
InputStream inp = httpInput;
byte[] b = IOUtilities.streamToBytes(inp);
EncodedImage hai = EncodedImage.createEncodedImage(b, 0, b.length);
return hai.getBitmap();
} catch (Exception ex) {
System.out.println("URL Bitmap Error........" + ex.getMessage());
} finally {
try {
if (httpInput != null)
httpInput.close();
if (httpDataOutput != null)
httpDataOutput.close();
if (httpConnection != null)
httpConnection.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return bitmp;
}
and ConnetionType class is as follows
public class ConnectionType {
public static String getConnectionType()
{
String connectionString = null;
if (DeviceInfo.isSimulator())
{
connectionString = "";
return connectionString;
}
else if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
{
connectionString = ";interface=wifi";
return connectionString;
}
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT)
{
String carrierUid = getCarrierBIBSUid();
if (carrierUid == null)
{
connectionString = ";deviceside=true";
return connectionString;
}
else
{
connectionString=carrierUid;
return connectionString;
}
}
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS)
{
connectionString = ";deviceside=false";
return connectionString;
}
else
{
connectionString = ";deviceside=true";
return connectionString;
]
}
/**
* Looks through the phone's service book for a carrier provided BIBS
* network
*
* #return The UID used to connect to that network.
*/
private static String getCarrierBIBSUid()
{
ServiceRecord[] records = ServiceBook.getSB().getRecords();
int currentRecord;
for (currentRecord = 0; currentRecord < records.length; currentRecord++)
{
if (records[currentRecord].getCid().toLowerCase().equals("ippp"))
{
if (records[currentRecord].getName().toLowerCase().indexOf("bibs") >= 0)
{
//otherwise, use the UID to construct a valid carrier BIB-S
String carrierUid= records[currentRecord].getUid();
String extension = ";deviceside=false;connectionUID=" + carrierUid + ";ConnectionType=mds-public";
return extension;
}
}
}
for (currentRecord = 0; currentRecord < records.length; currentRecord++)
{
if(records[currentRecord].getCid().toLowerCase().equals("wptcp"))
{
String carrierUid= records[currentRecord].getUid();
String extension = ";ConnectionUID="+carrierUid;
return extension;
}
}
return null;
}
}
Images are displaying fine on simulater but when I run this on my device No image displayed .Please suggest where I am missing.
Thanks!!!
After referring tons of tutorials finally somehow I managed to develop java push client for Blackberry OS 7.0 (registering in RIM and server side are completely ok, this is the server script). Now the program running on the device and when new push massage revived there is a little arrow blinking on right up corner of the device, but I haven't that much knowledge to show that message in a label field or any other UI component. Please tell me how to show the revived push message in a screen. I'm beginner in programming so I haven't that much of knowledge need your help. Here I post all the codes that I have used.
Here is the application class
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
/**
* This class extends the UiApplication class, providing a
* graphical user interface.
*/
public class MyApp extends UiApplication
{
public static void main(String[] args)
{
//every time we start the application we register to BIS for push
if (args.length > 0 && args[0].equals("BlackBerryCity")) {
System.out.println("!!!!!!!!!!!!!!I am inside if");
//registering for push
Push_main.registerBpas();
MyApp app = new MyApp();
app.enterEventDispatcher();
}
//every time we restart the phone , we call this background process that is responsible for listening for push
else {
System.out.println("!!!!!!!!!!!!!!I am inside else");
//should put the background classes for listening to pushed msgs :D
BackgroundApplication backApp=new BackgroundApplication();
backApp.setupBackgroundApplication();
backApp.enterEventDispatcher();
}
}
public MyApp(){
pushScreen(new MyAppScreen());
}
}
class MyAppScreen extends MainScreen
{
public MyAppScreen()
{
// What to add here no idea :(
}
}
Push_main class
public class Push_main {
private static final String REGISTER_SUCCESSFUL = "rc=200";
private static final String DEREGISTER_SUCCESSFUL = REGISTER_SUCCESSFUL;
private static final String USER_ALREADY_SUBSCRIBED = "rc=10003";
private static final String ALREADY_UNSUSCRIBED_BY_USER = "rc=10004";
private static final String ALREADY_UNSUSCRIBED_BY_PROVIDER = "rc=10005";
private static final String PUSH_PORT = ""+"XXXXXX"; //push port
private static final String BPAS_URL = "http://cpXXXX.pushapi.eval.blackberry.com";
private static final String APP_ID = ""+ "XXXX-XXXXXXXXXXXXXXXXXXXXXXXXXXX"; // add application id
private static String URL = "http://:"+ "XXXXXX"; // add your push port.
private static final int CHUNK_SIZE = 256;
public static ListeningThread _listeningThread;
public static StreamConnectionNotifier _notify;
private static final long ID = 0x954a603c0dee81e0L;
public Push_main(){
if(_listeningThread==null)
{
System.out.println("msg on listening thread 1");
_listeningThread = new ListeningThread();
System.out.println("msg on listening thread 2");
_listeningThread.start();
System.out.println("msg on listhning thread 3 ");
}
}
public static class ListeningThread extends Thread
{
private boolean _stop = false;
/**
* Stops the thread from listening.
*/
private synchronized void stop()
{
_stop = true;
try
{
// Close the connection so the thread will return.
_notify.close();
}
catch (Exception e)
{
}
}
/**
* Listen for data from the HTTP url. After the data has been read,
* render the data onto the screen.
* #see java.lang.Runnable#run()
*/
public void run()
{
StreamConnection stream = null;
InputStream input = null;
MDSPushInputStream pushInputStream=null;
while (!_stop)
{
try
{
// Synchronize here so that we don't end up creating a connection that is never closed.
synchronized(this)
{
// Open the connection once (or re-open after an IOException), so we don't end up
// in a race condition, where a push is lost if it comes in before the connection
// is open again. We open the url with a parameter that indicates that we should
// always use MDS when attempting to connect.
System.out.println("\n\n msg connection 1");
_notify = (StreamConnectionNotifier)Connector.open(URL);
System.out.println("\n\n msg connection 2");
}
while (!_stop)
{
// NOTE: the following will block until data is received.
System.out.println("\n\n msg notify 1");
stream = _notify.acceptAndOpen();
System.out.println("\n\n msg 1 ");
try
{
System.out.println("\n\n msg 2");
input = stream.openInputStream();
System.out.println("\n\n msg 3 ");
pushInputStream= new MDSPushInputStream((HttpServerConnection)stream, input);
System.out.println("\n\n msg 4");
// Extract the data from the input stream.
DataBuffer db = new DataBuffer();
byte[] data = new byte[CHUNK_SIZE];
int chunk = 0;
while ( -1 != (chunk = input.read(data)) )
{
db.write(data, 0, chunk);
}
updateMessage(data);
// This method is called to accept the push.
pushInputStream.accept();
data = db.getArray();
}
catch (IOException e1)
{
// A problem occurred with the input stream , however, the original
// StreamConnectionNotifier is still valid.
// errorDialog(e1.toString());
}
finally
{
if ( input != null )
{
try
{
input.close();
}
catch (IOException e2)
{
}
}
if ( stream != null )
{
try
{
stream.close();
}
catch (IOException e2)
{
}
}
}
}
}
catch (IOException ioe)
{
// Likely the stream was closed. Catches the exception thrown by
// _notify.acceptAndOpen() when this program exits.
errorDialog(ioe.toString());
}
finally
{
/*
if ( _notify != null )
{
try
{
_notify.close();
_notify = null;
}
catch ( IOException e )
{
}
}
*/
}
}
}
}
private static void updateMessage(final byte[] data)
{
System.out.println("\n\n msg 6");
Application.getApplication().invokeLater(new Runnable()
{
public void run()
{
// Query the user to load the received message.
// Dialog.alert( new String(data));
UiApplication.getUiApplication().invokeLater( new Runnable() {
public void run()
{
NotificationsManager.triggerImmediateEvent(ID, 0, null, null);
Dialog d = new Dialog( Dialog.D_OK, new String(data) ,0, null, Screen.DEFAULT_CLOSE);
// _dialogShowing = true;
UiApplication.getUiApplication().pushGlobalScreen( d, 10, UiApplication.GLOBAL_MODAL );
// Dialog is closed at this point, so we cancel the event.
}
} );
}
});
}
public static void registerBpas() {
/**
* As the connection suffix is fixed I just use a Thread to call the connection code
*
**/
new Thread() {
public void run() {
try {
String registerUrl = formRegisterRequest(BPAS_URL, APP_ID, null) + ";deviceside=false;ConnectionType=mds-public";
//Dialog.alert(registerUrl);
if ((WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
&& RadioInfo
.areWAFsSupported(RadioInfo.WAF_WLAN)) {
registerUrl += ";interface=wifi";
}
System.out.println("\n\n\n !!msg registerBPAS URL is: "+ registerUrl + "\n\n");
HttpConnection httpConnection = (HttpConnection) Connector.open(registerUrl);
InputStream is = httpConnection.openInputStream();
System.out.println("\n\n\n !!!!!!!!!!!I am here ");
String response = new String(IOUtilities.streamToBytes(is));
System.out.println("\n\n\n\n\n\n msg RESPOSE CODE : " + response);
System.out.println("\n\n\n !!!!!!!!!!!I am here2 ");
httpConnection.close();
String nextUrl = formRegisterRequest(BPAS_URL, APP_ID, response) + ";deviceside=false;ConnectionType=mds-public";
System.out.println("\n\n\n\n\n\n msg nextUrl : " + nextUrl);
System.out.println("\n\n\n !!!!!!!!!!!I am here 3");
if ((WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
&& RadioInfo
.areWAFsSupported(RadioInfo.WAF_WLAN)) {
nextUrl += ";interface=wifi";
System.out.println("\n\n\n !!!!!!!!!!!I am here 4");
}
HttpConnection nextHttpConnection = (HttpConnection) Connector.open(nextUrl);
InputStream nextInputStream = nextHttpConnection.openInputStream();
response = new String(IOUtilities.streamToBytes(nextInputStream));
System.out.println("\n\n\n !!!!!!!!!!!I am here 5");
System.out.println("\n\n\n\n\n\n msg RESPOSE CODE 1: " + response);
nextHttpConnection.close();
if (REGISTER_SUCCESSFUL.equals(response) || USER_ALREADY_SUBSCRIBED.equals(response)) {
Dialog.alert("msg Registered successfully for BIS push");
System.out.println("\n\n\n !!!!!!!!!!!I am here 6");
System.out.println("msg Registered successfully for BIS push");
} else {
Dialog.alert("msg BPAS rejected registration");
System.out.println("msg BPAS rejected registration");
}
} catch (final IOException e) {
Dialog.alert("msg IOException on register() " + e + " " + e.getMessage());
System.out.println("msg IOException on register() " + e + " " + e.getMessage());
}
}
}.start();
}
public static void close(Connection conn, InputStream is, OutputStream os) {
if (os != null) {
try {
os.close();
} catch (IOException e) {
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
}
}
if (conn != null) {
try {
conn.close();
} catch (IOException e) {
}
}
}
public static void errorDialog(final String message)
{
UiApplication.getUiApplication().invokeLater(new Runnable()
{
public void run()
{
Dialog.alert(message);
}
});
}
private static String formRegisterRequest(String bpasUrl, String appId, String token) {
StringBuffer sb = new StringBuffer(bpasUrl);
sb.append("/mss/PD_subReg?");
sb.append("serviceid=").append(appId);
sb.append("&osversion=").append(DeviceInfo.getSoftwareVersion());
sb.append("&model=").append(DeviceInfo.getDeviceName());
if (token != null && token.length() > 0) {
sb.append("&").append(token);
}
return sb.toString();
}
}
Push Message Reader
public final class PushMessageReader {
//added by me
static String msgId;
// HTTP header property that carries unique push message ID
private static final String MESSAGE_ID_HEADER = "Push-Message-ID";
// content type constant for text messages
private static final String MESSAGE_TYPE_TEXT = "text";
// content type constant for image messages
private static final String MESSAGE_TYPE_IMAGE = "image";
private static final int MESSAGE_ID_HISTORY_LENGTH = 10;
private static String[] messageIdHistory = new String[MESSAGE_ID_HISTORY_LENGTH];
private static byte historyIndex;
private static byte[] buffer = new byte[15 * 1024];
private static byte[] imageBuffer = new byte[10 * 1024];
/**
* Utility classes should have a private constructor.
*/
public PushMessageReader() {
}
/**
* Reads the incoming push message from the given streams in the current thread and notifies controller to display the information.
*
* #param pis
* the pis
* #param conn
* the conn
*/
public static void process(PushInputStream pis, Connection conn) {
System.out.println("Reading incoming push message ...");
try {
HttpServerConnection httpConn;
if (conn instanceof HttpServerConnection) {
httpConn = (HttpServerConnection) conn;
} else {
throw new IllegalArgumentException("Can not process non-http pushes, expected HttpServerConnection but have "
+ conn.getClass().getName());
}
//changed here
msgId = httpConn.getHeaderField(MESSAGE_ID_HEADER);
String msgType = httpConn.getType();
String encoding = httpConn.getEncoding();
System.out.println("Message props: ID=" + msgId + ", Type=" + msgType + ", Encoding=" + encoding);
boolean accept = true;
if (!alreadyReceived(msgId)) {
byte[] binaryData;
if (msgId == null) {
msgId = String.valueOf(System.currentTimeMillis());
}
if (msgType == null) {
System.out.println("Message content type is NULL");
accept = false;
} else if (msgType.indexOf(MESSAGE_TYPE_TEXT) >= 0) {
// a string
int size = pis.read(buffer);
binaryData = new byte[size];
System.arraycopy(buffer, 0, binaryData, 0, size);
// TODO report message
} else if (msgType.indexOf(MESSAGE_TYPE_IMAGE) >= 0) {
// an image in binary or Base64 encoding
int size = pis.read(buffer);
if (encoding != null && encoding.equalsIgnoreCase("base64")) {
// image is in Base64 encoding, decode it
Base64InputStream bis = new Base64InputStream(new ByteArrayInputStream(buffer, 0, size));
size = bis.read(imageBuffer);
}
binaryData = new byte[size];
System.arraycopy(buffer, 0, binaryData, 0, size);
// TODO report message
} else {
System.out.println("Unknown message type " + msgType);
accept = false;
}
} else {
System.out.println("Received duplicate message with ID " + msgId);
}
pis.accept();
} catch (Exception e) {
System.out.println("Failed to process push message: " + e);
} finally {
Push_main.close(conn, pis, null);
}
}
/**
* Check whether the message with this ID has been already received.
*
* #param id
* the id
* #return true, if successful
*/
private static boolean alreadyReceived(String id) {
if (id == null) {
return false;
}
if (Arrays.contains(messageIdHistory, id)) {
return true;
}
// new ID, append to the history (oldest element will be eliminated)
messageIdHistory[historyIndex++] = id;
if (historyIndex >= MESSAGE_ID_HISTORY_LENGTH) {
historyIndex = 0;
}
return false;
}
}
BackGroundApplication
public class BackgroundApplication extends Application {
public BackgroundApplication() {
// TODO Auto-generated constructor stub
}
public void setupBackgroundApplication(){
MessageReadingThread messageReadingThread = new MessageReadingThread();
messageReadingThread.start();
}
private static class MessageReadingThread extends Thread {
private boolean running;
private ServerSocketConnection socket;
private HttpServerConnection conn;
private InputStream inputStream;
private PushInputStream pushInputStream;
public MessageReadingThread() {
this.running = true;
}
public void run() {
String url = "http://:" + "XXXXXX" ;//here after the + add your port number
url += ";deviceside=true;ConnectionType=mds-public";
if ((WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED) && RadioInfo.areWAFsSupported(RadioInfo.WAF_WLAN)) {
url += ";interface=wifi";
}
try {
socket = (ServerSocketConnection) Connector.open( url );
} catch( IOException ex ) {
// can't open the port, probably taken by another application
onListenError( ex );
}
while( running ) {
try {
Object o = socket.acceptAndOpen();
conn = (HttpServerConnection) o;
inputStream = conn.openInputStream();
pushInputStream = new MDSPushInputStream( conn, inputStream );
PushMessageReader.process( pushInputStream, conn );
} catch( Exception e ) {
if( running ) {
// Logger.warn( "Failed to read push message, caused by " + e.getMessage() );
running = false;
}
} finally {
// PushUtils.close( conn, pushInputStream, null );
}
}
// Logger.log( "Stopped listening for push messages" );
}
public void stopRunning() {
running = false;
//PushUtils.close( socket, null, null );
}
private void onListenError( final Exception ex ) {
// Logger.warn( "Failed to open port, caused by " + ex );
System.out.println(ex);
}
}
}
What I have to add for the main screen to show in coming message ??
Thank you in advance.
Here is my full push notification listener.
public class MyApp extends UiApplication {
public static void main(String[] args) {
PushAgent pa = new PushAgent();
pa.enterEventDispatcher();
}
}
Is this class extended correctly?
public class PushAgent extends Application {
private static final String PUSH_PORT = "32023";
private static final String BPAS_URL = "http://pushapi.eval.blackberry.com";
private static final String APP_ID = "2727-c55087eR3001rr475448i013212a56shss2";
private static final String CONNECTION_SUFFIX = ";deviceside=false;ConnectionType=mds-public";
public static final long ID = 0x749cb23a75c60e2dL;
private MessageReadingThread messageReadingThread;
public PushAgent() {
if (!CoverageInfo.isCoverageSufficient(CoverageInfo.COVERAGE_BIS_B)) {
return;
}
if (DeviceInfo.isSimulator()) {
return;
}
messageReadingThread = new MessageReadingThread();
messageReadingThread.start();
registerBpas();
}
private static class MessageReadingThread extends Thread {
private boolean running;
private ServerSocketConnection socket;
private HttpServerConnection conn;
private InputStream inputStream;
private PushInputStream pushInputStream;
public MessageReadingThread() {
this.running = true;
}
public void run() {
String url = "http://:" + PUSH_PORT + CONNECTION_SUFFIX;
try {
socket = (ServerSocketConnection) Connector.open(url);
} catch (IOException ex) {
}
while (running) {
try {
Object o = socket.acceptAndOpen();
conn = (HttpServerConnection) o;
inputStream = conn.openInputStream();
pushInputStream = new MDSPushInputStream(conn, inputStream);
PushMessageReader.process(pushInputStream, conn);
} catch (Exception e) {
if (running) {
running = false;
}
} finally {
close(conn, pushInputStream, null);
}
}
}
}
public static void close(Connection conn, InputStream is, OutputStream os) {
if (os != null) {
try {
os.close();
} catch (IOException e) {
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
}
}
if (conn != null) {
try {
conn.close();
} catch (IOException e) {
}
}
}
private String formRegisterRequest(String bpasUrl, String appId,
String token) {
StringBuffer sb = new StringBuffer(bpasUrl);
sb.append("/mss/PD_subReg?");
sb.append("serviceid=").append(appId);
sb.append("&osversion=").append(DeviceInfo.getSoftwareVersion());
sb.append("&model=").append(DeviceInfo.getDeviceName());
if (token != null && token.length() > 0) {
sb.append("&").append(token);
}
return sb.toString();
}
private void registerBpas() {
final String registerUrl = formRegisterRequest(BPAS_URL, APP_ID, null)
+ CONNECTION_SUFFIX;
Object theSource = new Object() {
public String toString() {
return "Oriental Daily";
}
};
NotificationsManager.registerSource(ID, theSource,
NotificationsConstants.IMPORTANT);
new Thread() {
public void run() {
try {
HttpConnection httpConnection = (HttpConnection) Connector
.open(registerUrl);
InputStream is = httpConnection.openInputStream();
String response = new String(IOUtilities.streamToBytes(is));
close(httpConnection, is, null);
String nextUrl = formRegisterRequest(BPAS_URL, APP_ID,
response) + CONNECTION_SUFFIX;
HttpConnection nextHttpConnection = (HttpConnection) Connector
.open(nextUrl);
InputStream nextInputStream = nextHttpConnection
.openInputStream();
response = new String(
IOUtilities.streamToBytes(nextInputStream));
close(nextHttpConnection, is, null);
} catch (IOException e) {
}
}
}.start();
}
}
}
This is the process;
public class PushMessageReader {
private static final String MESSAGE_ID_HEADER = "Push-Message-ID";
private static final String MESSAGE_TYPE_TEXT = "text";
private static final String MESSAGE_TYPE_IMAGE = "image";
private static final int MESSAGE_ID_HISTORY_LENGTH = 10;
private static String[] messageIdHistory = new String[MESSAGE_ID_HISTORY_LENGTH];
private static byte historyIndex;
private static byte[] buffer = new byte[15 * 1024];
private static byte[] imageBuffer = new byte[10 * 1024];
public static final long ID = 0x749cb23a75c60e2dL;
public static Bitmap popup = Bitmap.getBitmapResource("icon_24.png");
private PushMessageReader() {
}
public static void process(PushInputStream pis, Connection conn) {
try {
HttpServerConnection httpConn;
if (conn instanceof HttpServerConnection) {
httpConn = (HttpServerConnection) conn;
} else {
throw new IllegalArgumentException(
"Can not process non-http pushes, expected HttpServerConnection but have "
+ conn.getClass().getName());
}
String msgId = httpConn.getHeaderField(MESSAGE_ID_HEADER);
String msgType = httpConn.getType();
String encoding = httpConn.getEncoding();
if (!alreadyReceived(msgId)) {
byte[] binaryData;
if (msgId == null) {
msgId = String.valueOf(System.currentTimeMillis());
}
if (msgType.indexOf(MESSAGE_TYPE_TEXT) >= 0) {
int size = pis.read(buffer);
binaryData = new byte[size];
System.arraycopy(buffer, 0, binaryData, 0, size);
NotificationsManager.triggerImmediateEvent(ID, 0, null,
null);
processTextMessage(buffer);
} else if (msgType.indexOf(MESSAGE_TYPE_IMAGE) >= 0) {
int size = pis.read(buffer);
if (encoding != null && encoding.equalsIgnoreCase("base64")) {
Base64InputStream bis = new Base64InputStream(
new ByteArrayInputStream(buffer, 0, size));
size = bis.read(imageBuffer);
}
binaryData = new byte[size];
System.arraycopy(buffer, 0, binaryData, 0, size);
}
}
pis.accept();
} catch (Exception e) {
} finally {
PushAgent.close(conn, pis, null);
}
}
private static boolean alreadyReceived(String id) {
if (id == null) {
return false;
}
if (Arrays.contains(messageIdHistory, id)) {
return true;
}
messageIdHistory[historyIndex++] = id;
if (historyIndex >= MESSAGE_ID_HISTORY_LENGTH) {
historyIndex = 0;
}
return false;
}
private static void processTextMessage(final byte[] data) {
synchronized (Application.getEventLock()) {
UiEngine ui = Ui.getUiEngine();
GlobalDialog screen = new GlobalDialog("New Notification",
"Article ID : " + new String(data), new String(data));
ui.pushGlobalScreen(screen, 1, UiEngine.GLOBAL_QUEUE);
}
}
static class GlobalDialog extends PopupScreen implements
FieldChangeListener {
ButtonField mOKButton = new ButtonField("OK", ButtonField.CONSUME_CLICK
| FIELD_HCENTER);
String data = "";
public GlobalDialog(String title, String text, String data) {
super(new VerticalFieldManager());
this.data = data;
add(new LabelField(title));
add(new SeparatorField(SeparatorField.LINE_HORIZONTAL));
add(new LabelField(text, DrawStyle.HCENTER));
mOKButton.setChangeListener(this);
add(mOKButton);
}
public void fieldChanged(Field field, int context) {
if (mOKButton == field) {
try {
ApplicationManager.getApplicationManager().launch(
"OrientalDailyBB");
ApplicationManager.getApplicationManager().postGlobalEvent(
ID, 0, 0, data, null);
ApplicationIndicatorRegistry reg = ApplicationIndicatorRegistry
.getInstance();
reg.unregister();
close();
} catch (ApplicationManagerException e) {
}
}
}
}
}
In this project, I checked Auto-run on startup so that this background app listener will run all the time and set the start tier to 7 in the BB App Descriptor.
However, it cannot display the popup Dialog, but I can see the device has received the push notification.
After the dialog popup and user click OK will start the OrientalDailyBB project and display the particular MainScreen.
FYI: The listener priority is higher than the OrientalDailyBB project because it is a background application. So when I install OrientalDailyBB, it will install this listener too. It happened because this listener is not in the OrientalDailyBB project folder, but is in a different folder. I did separate them to avoid the background application being terminated when the user quits from OrientalDailyBB.
I believe that this is a threading problem. pushGlobalScreen is a message you could try to use with invokeLater.
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
ui.pushGlobalScreen(screen, 1, UiEngine.GLOBAL_QUEUE);
}
});
you could try to push the application to the foreground too.
I am trying to save a path to an image in the persistent store to show the image when a user chooses a specific product from a history list(one image per product, taken by the user). Now the problem I am having is that when I load the app to the phone for the first time and try adding an entry to the persistent store, it throws an error a bit after and the app freezes. However when I come back, and add an image again, it works just fine and the images always load when I choose each specific product.
This is leading me to believe that the culprit is the first store8.commit() that I'm doing, for some reason it throws an exception : No Stack Trace, when debugging. Here is my code:
public class Storage extends Application {
private static final long PERSISTENT_KEY8 = 0x2c4c45c139ee9728L;
static PersistentObject store8 = PersistentStore.getPersistentObject(PERSISTENT_KEY8);
private static Vector pics;
/**
* Picture Section ***********************************************************
*/
public static void savePicture(){
store8.setContents(new Vector());
store8.commit();
if(pics == null){
pics = new Vector();
}
synchronized(store8) {
store8.setContents(pics);
store8.commit();
}
}
public static String getPicture(String productName){
if(pics.size()==0){
return "";
}else{
for(int i = 0; i < pics.size(); i++){
Pics product = (Pics)pics.elementAt(i);
if(product.getProductName().equals(productName)){
return product.getPic();
}
}
return "";
}
}
public static void removePicture(String productName){
if(pics.size()==0){
return;
}else{
for(int i = 0; i < pics.size(); i++){
Pics product = (Pics)pics.elementAt(i);
if(product.getProductName().equals(productName)){
pics.removeElementAt(i);
}
}
}
}
public static void loadPicture(){
pics = (Vector)store8.getContents();
if(pics == null){
pics = new Vector();
}
}
public static void setPicture(Pics pro){
if(pics.size()!=0){
for(int j = 0; j< pics.size() ; j++){
Pics product = (Pics)pics.elementAt(j);
if(pro.getProductName().equals(product.getProductName())){
pics.removeElementAt(j);
}
}
}
pics.addElement(pro);
}
}
So that is the class that contains my methods to save the image. Now for the other class where I am manipulating it:
public class ProductImage extends MainScreen implements FieldChangeListener, AppLaunchResource {
private ImageButtonField logo;
private ButtonField newImage, chooseExisting;
public static BitmapField takenPicture;
//public static String picPath ="";
private String currentPicture = "";
private String currentProduct ="";
public ProductImage(String productName){
super(VERTICAL_SCROLL|VERTICAL_SCROLLBAR);
currentProduct = productName;
createGUI();
}
public void createGUI(){
deleteAll();
this.setTitle(new LabelField("Add An Image", Field.FIELD_HCENTER));
if(ToolbarManager.isToolbarSupported())
{
Toolbar tb = new Toolbar();
setToolbar(tb.createToolBar());
}
else{
Toolbar tb = new Toolbar();
add(tb.createNavBar());
}
try{
Storage.loadPicture();
}catch(NullPointerException e){
e.printStackTrace();
}
newImage = new ButtonField("Take Photo", ButtonField.CONSUME_CLICK){
public int getPreferredWidth() {
return (int) (net.rim.device.api.system.Display.getWidth());
}
};
chooseExisting= new ButtonField("Change Image", ButtonField.CONSUME_CLICK){
public int getPreferredWidth() {
return (int) (net.rim.device.api.system.Display.getWidth());
}
};
newImage.setChangeListener(this);
chooseExisting.setChangeListener(this);
EncodedImage enc = EncodedImage.getEncodedImageResource("camera.png");
EncodedImage sizeEnc = ImageResizer.sizeImage(enc, Display.getHeight(), Display.getHeight());
takenPicture = new BitmapField(enc.getBitmap());
VerticalFieldManager vfMain = new VerticalFieldManager();
vfMain.add(new SeparatorField());
vfMain.add(newImage);
vfMain.add(chooseExisting);
vfMain.add(takenPicture);
add(vfMain);
currentPicture = Storage.getPicture(currentProduct);
showPicture();
}
public void choosePicture(){
String imageExtensions[] = {"jpg", "jpeg",
"bmp", "png", "gif"};
FileSelectorPopupScreen fps = new FileSelectorPopupScreen(null, imageExtensions);
fps.pickFile();
String theFile = fps.getFile();
UiApplication.getUiApplication().pushScreen(fps);
if (theFile == null)
{
Dialog.alert("Screen was dismissed. No file was selected.");
}
else
{
try{
String path= "file:///" + theFile;
byte[] data = getData(path);
//Encode and Resize image
EncodedImage eImage = EncodedImage.createEncodedImage(data,0,data.length);
if(Display.getHeight()>Display.getWidth()){
int scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()),
Fixed32.toFP(Display.getWidth()));
int scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()),
Fixed32.toFP((Display.getWidth()*Display.getWidth())/Display.getHeight()));
eImage=eImage.scaleImage32(scaleFactorX, scaleFactorY);
}
else{
int scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()),
Fixed32.toFP(Display.getWidth()));
int scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()),
Fixed32.toFP(Display.getHeight()));
eImage=eImage.scaleImage32(scaleFactorX, scaleFactorY);
}
UiApplication.getUiApplication().popScreen(fps);
takenPicture.setBitmap(eImage.getBitmap());
Storage.setPicture(new Pics(currentProduct, path));
try{
Storage.savePicture();
}catch(Exception e){
e.printStackTrace();
}
}
catch(Exception e){
}
Dialog.alert("Picture Saved");
}
}
public void showPicture(){
if(currentPicture != ""){
try{
String path= currentPicture;
byte[] data = getData(path);
//Encode and Resize image
EncodedImage eImage = EncodedImage.createEncodedImage(data,0,data.length);
if(Display.getHeight()>Display.getWidth()){
int scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()),
Fixed32.toFP(Display.getWidth()));
int scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()),
Fixed32.toFP((Display.getWidth()*Display.getWidth())/Display.getHeight()));
eImage=eImage.scaleImage32(scaleFactorX, scaleFactorY);
}
else{
int scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()),
Fixed32.toFP(Display.getWidth()));
int scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()),
Fixed32.toFP(Display.getHeight()));
eImage=eImage.scaleImage32(scaleFactorX, scaleFactorY);
}
takenPicture.setBitmap(eImage.getBitmap());
}
catch(Exception e){
}
}
}
public void fieldChanged(Field field, int context) {
if(field == logo){
}
else if(field == newImage){
takePicture();
}
else if(field == chooseExisting){
choosePicture();
}
}
}
I removed many parts of this class, sorry if it is long, there are basically 4 Storage method calls in this code and I believe they are all in the right place.. but again im having the problem on first load, not afterwards.
Can anyone see what Im doing wrong here? I have had this problem for a week
Thanks for any help provided!
Try something like this:
public class Storage extends Application{
private static final long PERSISTENT_KEY8 = 0x2c4c45c139ee9728L;
static PersistentObject store8 = null;
private static Vector pics = null;
static{
store8 = PersistentStore.getPersistentObject(PERSISTENT_KEY8)
pics = (Vector)store8.getContents();
if(pics == null){
pics = new Vector();
store8.setContents(pics);
store8.commit();
}
}
public static void savePicture(){
try{
synchronized(store8){
store8.setContents(pics);
store8.commit();
}
}
catch(Exception e){
e.printStackTrace();
}
}
public static int findPicture(String productName){
for(int i = 0; i < pics.size(); i++){
Pics product = (Pics)pics.elementAt(i);
if(product.getProductName().equals(productName)){
return i;
}
}
return -1;
}
public static String getPicture(String productName){
int idx = findPicture(productName);
if(idx != -1){
return ((Pics)pics.elementAt(idx)).getPic();
}
return "";
}
public static void removePicture(String productName){
int idx = findPicture(productName);
if(idx != -1){
pics.removeElementAt(idx);
}
}
public static void setPicture(Pics pro){
removePicture(pro.getProductName());
pics.addElement(pro);
}
}
.
public class ProductImage extends MainScreen implements FieldChangeListener, AppLaunchResource {
private ImageButtonField logo;
private ButtonField newImage, chooseExisting;
public static BitmapField takenPicture;
//public static String picPath ="";
private String currentPicture = "";
private String currentProduct = "";
public ProductImage(String productName){
super(VERTICAL_SCROLL|VERTICAL_SCROLLBAR);
currentProduct = productName;
createGUI();
}
public void createGUI(){
deleteAll();
setTitle(new LabelField("Add An Image", Field.FIELD_HCENTER));
Toolbar tb = new Toolbar();
if(ToolbarManager.isToolbarSupported()){
setToolbar(tb.createToolBar());
}
else{
add(tb.createNavBar());
}
newImage = new ButtonField("Take Photo", ButtonField.CONSUME_CLICK){
public int getPreferredWidth() {
return (int) Display.getWidth();
}
};
chooseExisting = new ButtonField("Change Image", ButtonField.CONSUME_CLICK){
public int getPreferredWidth() {
return (int) Display.getWidth();
}
};
newImage.setChangeListener(this);
chooseExisting.setChangeListener(this);
EncodedImage enc = EncodedImage.getEncodedImageResource("camera.png");
EncodedImage sizeEnc = ImageResizer.sizeImage(enc, Display.getHeight(), Display.getHeight());
takenPicture = new BitmapField(enc.getBitmap());
VerticalFieldManager vfMain = new VerticalFieldManager();
vfMain.add(new SeparatorField());
vfMain.add(newImage);
vfMain.add(chooseExisting);
vfMain.add(takenPicture);
add(vfMain);
currentPicture = Storage.getPicture(currentProduct);
showPicture();
}
public void choosePicture(){
String imageExtensions[] = {"jpg", "jpeg", "bmp", "png", "gif"};
FileSelectorPopupScreen fps = new FileSelectorPopupScreen(null, imageExtensions);
fps.pickFile();
String theFile = fps.getFile();
if (theFile == null){
Dialog.alert("Screen was dismissed. No file was selected.");
return;
}
EncodedImage eImage = loadImage("file:///" + theFile);
if(eImage != null){
takenPicture.setBitmap(eImage.getBitmap());
Storage.setPicture(new Pics(currentProduct, path));
Storage.savePicture();
Dialog.alert("Picture Saved");
}
}
private EncodedImage loadImage(String path){
try{
byte[] data = getData(path);
//Encode and Resize image
EncodedImage eImage = EncodedImage.createEncodedImage(data,0,data.length);
int scaleFactorX, scaleFactorY;
if(Display.getHeight()>Display.getWidth()){
scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()), Fixed32.toFP(Display.getWidth()));
scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()), Fixed32.toFP((Display.getWidth()*Display.getWidth())/Display.getHeight()));
}
else{
scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()), Fixed32.toFP(Display.getWidth()));
scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()), Fixed32.toFP(Display.getHeight()));
}
return eImage.scaleImage32(scaleFactorX, scaleFactorY);
}
catch (Exception e){
return null;
}
}
public void showPicture(){
if(currentPicture != ""){
EncodedImage eImage = loadImage(currentPicture);
if (eImage != null){
takenPicture.setBitmap(eImage.getBitmap());
}
}
}
public void fieldChanged(Field field, int context){
if(field == logo){
}
else if(field == newImage){
takePicture();
}
else if(field == chooseExisting){
choosePicture();
}
}
}
How can I parse a xml file in Blackberry? Can I have a link or sample code or tutorial?
I've used SAX to process XML responses from a web api and it worked well for me. Check out: http://developerlife.com/tutorials/?p=28
What exactly are you trying to accomplish with XML?
You should have a interface to implement the listener in order to notify your UI thread once parsing is over.
import java.util.Vector;
public interface MediaFeedListner {
public void mediaItemParsed(Vector mObject);
public void exception(java.io.IOException ioe);
}
implement your class with MediaFeedListner and then override the mediaItemParsed(Vector mObject) and exception(java.io.IOException ioe) methoods.
mediaItemParsed() method will have the logic for notifying the UI thread and perform required operations.
Here is the XML parser code.
package com.test.net;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Vector;
import net.rim.device.api.xml.parsers.ParserConfigurationException;
import net.rim.device.api.xml.parsers.SAXParser;
import net.rim.device.api.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import com.span.data.MediaObject;
import com.span.utils.FileManager;
public class MediaHandler extends DefaultHandler {
protected static final String TAG_FEED = "feed";
protected static final String TAG_ENTRY = "entry";
protected static final String TAG_TITLE = "title";
protected static final String TAG_MEDIA_GROUP = "group";
protected static final String TAG_MEDIA_CATEGORY = "category";
protected static final String TAG_MEDIA_CONTENT = "content";
protected static final String TAG_MEDIA_DESCRIPTION = "description";
protected static final String TAG_MEDIA_THUMBNAIL = "thumbnail";
protected static final String ATTR_MEDIA_CONTENT= "url";
protected static final String ATTR_MEDIA_THUMBNAIL = "url";
boolean isEntry = false;
boolean isTitle = false;
boolean isCategory = false;
boolean isDescription = false;
boolean isThumbUrl = false;
boolean isMediaUrl = false;
boolean isMediaGroup = false;
String valueTitle = "";
String valueCategory = "";
String valueDescription = "";
String valueThumbnailUrl = "";
String valueMediaUrl = "";
public static Vector mediaObjects = null;
MediaObject _dataObject = null;
MediaFeedListner listner = null;
public MediaHandler(MediaFeedListner listner) {
this.listner = listner;
mediaObjects = new Vector();
}
public void parseXMLString(String xmlString) {
try {
SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
parser.parse(new ByteArrayInputStream(xmlString.getBytes()), this);
}
catch (ParserConfigurationException e) {
e.printStackTrace();
}
catch (SAXException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
public void startElement(String uri, String localName, String name, Attributes attributes) throws SAXException {
if(localName.equalsIgnoreCase(TAG_FEED)) {
//return;
}
if(localName.equals(TAG_ENTRY))
{
_dataObject = new MediaObject();
isEntry = true;
}
if(isEntry) {
if(localName.equalsIgnoreCase(TAG_TITLE)) {
isTitle = true;
}
if(localName.equals(TAG_MEDIA_GROUP))
isMediaGroup = true;
if(isMediaGroup) {
if(localName.equalsIgnoreCase(TAG_MEDIA_CONTENT)) {
valueMediaUrl = attributes.getValue(ATTR_MEDIA_CONTENT);
if(valueMediaUrl != null) {
_dataObject.setMediaUrl(valueMediaUrl);
valueMediaUrl = "";
}
}
if(localName.equalsIgnoreCase(TAG_MEDIA_THUMBNAIL)) {
valueThumbnailUrl = attributes.getValue(ATTR_MEDIA_THUMBNAIL);
if(valueThumbnailUrl != null) {
_dataObject.setMediaThumb(valueThumbnailUrl);
valueThumbnailUrl = "";
}
}
if(localName.equalsIgnoreCase(TAG_MEDIA_DESCRIPTION)) {
isDescription = true;
}
if(localName.equalsIgnoreCase(TAG_MEDIA_CATEGORY)) {
isCategory = true;
}
}
}
}
public void characters(char[] ch, int start, int length) throws SAXException {
if(isTitle){
valueTitle = new String(ch, start, length);
_dataObject.setMediaTitle(valueTitle);
System.out.println("Title value " + valueTitle);
valueTitle = "";
}
if(isCategory){
valueCategory = new String(ch, start, length);
_dataObject.setMediaCategory(valueCategory);
System.out.println("category value " + valueCategory);
valueCategory = "";
}
if(isDescription){
valueDescription = new String(ch, start, length);
_dataObject.setMediaDesc(valueDescription);
System.out.println("category value " + valueDescription);
valueDescription = "";
}
}
public void endElement(String uri, String localName, String name) throws SAXException {
if(localName.equalsIgnoreCase(TAG_FEED)) {
listner.mediaItemParsed(mediaObjects);
printMediaInfo(mediaObjects);
}
if(localName.equalsIgnoreCase(TAG_ENTRY)) {
isEntry = false;
isTitle = false;
isCategory = false;
isDescription = false;
mediaObjects.addElement(_dataObject);
}
}
public static void printMediaInfo(Vector v){
int length = v.size();
for(int i = 0 ; i <length ; i++){
MediaObject mediaObj = (MediaObject) v.elementAt(i);
FileManager.getInstance().writeLog("Title: " + mediaObj.getMediaTitle());
FileManager.getInstance().writeLog("Category: " + mediaObj.getMediaCategory());
FileManager.getInstance().writeLog("Desc: " + mediaObj.getMediaDesc());
FileManager.getInstance().writeLog("URL: " + mediaObj.getMediaUrl());
FileManager.getInstance().writeLog("Thumb: " + mediaObj.getMediaThumb());
FileManager.getInstance().writeLog("Fav count: " + mediaObj.getMediaFavCount());
FileManager.getInstance().writeLog("View Count: " + mediaObj.getMediaViewCount());
FileManager.getInstance().writeLog("Ratings: " + mediaObj.getMediaRating());
FileManager.getInstance().writeLog("============================================");
}
}
}
Its done.