Code Library » service

Android HTTP Service

support — Thu, 17 Dec 2009 04:20:56 +0000

Using the HTTP service:

1.
Apache HttpClinet
Http GET
Http POST

a. Create HttpClient
b. The initial HTTP GET method or POST method.
c. set the parameters of key pairs
d. implementation of the HTTP call
e. processing HTTP reply

HTTP GET example:

  public class TestHttpGetMethod (public void get () (BufferedReader in = null; try (HttpClient client = new DefaultHttpClient (); HttpGet request = new HttpGet (); request.setURI ( &quot;http://w26.javaeye.com"); HttpResponse response = client.execute (request); in = new BufferedReader (new InputStreamReader (response.getEntity (). getContent ())); StringBuffer sb = new StringBuffer (""); String line = ""; String NL = System . getProperty ( "line.separator"); while ((line = in.readLine ())! = null) (sb.append (line   NL);) in.close (); String page = sb.toString () ; Log.i (TAG, page);) catch (Exception e) (Log.e (TAG, e.toString ())) finally (if (in! = null) (try (in.close ();) catch (IOException ioe) (Log.e (TAG, ioe.toString ());)))))

With parameters of HTTP GET:

1	HttpGet request = new HttpGet ( "http://www.baidu.com/s?wd=amos_tl"); client.execute (request);

HTTP POST Example:

  public class TestHttpPostMethod (public void post () (BufferedReader in = null; try (HttpClient client = new DefaultHttpClient (); HttpPost request = new HttpPost ( &quot;http://localhost/upload.jsp"); List <NameValuePair> postParams = new ArrayList <NameValuePair> (); postParams.add (new BasicNameValuePair ( "filename", "sex.mov")); UrlEncodeFormEntity formEntity = new UrlEncodeFormEntity (postParams); request.setEntity (formEntity); HttpResponse response = client.execute ( request); in = new BufferedReader (new InputStreamReader (response.getEntity (). getContent ())); StringBuffer sb = new StringBuffer (""); String line = ""; String NL = System.getProperty ( "line.separator "); while ((line = in.readLine ())! = null) (sb.append (line   NL);) in.close (); String result = sb.toString (); Log.i (TAG, result);) catch (Exception e) (Log.e (TAG, e.toString ())) finally (if (in! = null) (try (in.close ();) catch (IOException ioe) (Log. e (TAG, ioe.toString ());)))))

multipart POST support:

Requires the following support:
Commons IO
http://commons.apache.org/io/

Mime4j
http://james.apache.org/mime4j/

HttpMime
http://hc.apache.org/httpcomponents-client/httpmime/index.html

Download all the JAR URL:
http://www.sayedhashimi.com/downloads/android/multipart-android.zip

multipart POST Example:

  public class TestHttpMultipartPost (public void mulPost () (try (InputStram in = this.getAssets (). open ( &quot;data.xml&quot;); HttpClient client = new HttpDefaultHttpClient (); HttpPost request = new HttpPost ( &quot;http://localhost / upload.jsp "); byte [] data = IOUtils.toByteArray (in); InputStreamBody isb = new InputStreamBody (new ByteArrayIntputStream (data)," uploadedFile "); StringBody sb1 = new StringBody (" some text "); StringBoyd sb2 = new StringBody ( "some text too"); MultipartEntity me = new MultipartEntity (); me.addPart ( "uploadedFile", isb); me.addPart ( "one", sb1); me.addPart ( "two", sb2 ); request.setEntity (me); HttpRespones response = client.excute (request); res.getEntity (). getContent (). close ();) catch (Throwable e) (Log.e (TAG, e.toString ( ));)))

Exception handling retry processing

The use of multi-threading problem ClientConnectionManager, to create a thread-safe HttpClient.

  public class ApplicationEx extends Application (public static final String TAG = &quot;amos_tl&quot;; private HttpClient client = null; @ override public void onCreate () (super.onCreate (); client = createHttpClient ();) @ override public void onLowMemory () (super.onLowMemory (); shutdownHttpClient ();) @ override public void onTerminate () (super.onTerminate (); shutdownHttpClient ();) private void shutdownHttpClient () (if (client! = null &amp; &amp; client.getConnectionManager ()! = null) (client.getConnectionManager (). shutdown (); client = null;)) private HttpClient createHttpClient () (Log.d (TAG, &quot;create httpclient ...&quot;); HttpParams params = new BasicHttpParams (); HttpProtocolParams . setVersion (params, HttpVersion.HTTP_1_1); HttpProtocolParams.setContentCharset (params, HTTP.DEFAULT_CONTENT_CHARSET); HttpProtocolParams.setUseExpectContinue (params, true); SchemaRegistry sr = new SchemaRegistry (); sr.register (new Schema ( &quot;http&quot;, PlainSocketFactory . getSocketFactory (), 80)); sr.register (new Schema ( &quot;https&quot;, SLLSocketFactory.getSocketFactory (), 443)); ClientConnectionManager cm = new ThreadSafeClientConnManager (params, sr); return new DefaultHttpClient (cm, params); ) public HttpClient getHttpClient () (return client;))

HttpActivity.java

  public class HttpActivity extends Activity (@ override public void onCreate (Bundle savedInstanceState) (super.onCreate (savedInstanceState); Log.d (TAG, &quot;httpactivity startup ...&quot;); getHttpContent ();) private void getHttpContent () (try (ApplicationEx app = (ApplicationEx) this.getApplication (); HttpClient client = app.getHttpClient (); HttpGet request = new HttpGet (); request.setURI ( &quot;http://w26.javaeye.com"); HttpResponse response = client.excute (resquest); String page = EntityUtils.toString (response.getEntity ()); Log.i (TAG, page);) catch (Exception e) (Log.e (TAG, e.toString ()); )))

Configuration AndroidManifest.xml
android: label = "@ string / app_name"
android: name = "ApplictionEx"
"

Tags: android, http, service

Android HTTP Service

support — Sat, 21 Nov 2009 02:44:00 +0000

Using the HTTP service:

1.
Apache HttpClinet
Http GET
Http POST

a. Create HttpClient
b. The initial HTTP GET method or POST method.
c. set the parameters of key pairs
d. implementation of the HTTP call
e. processing HTTP reply

HTTP GET example:

public class TestHttpGetMethod
{
    public void get()
    {
        BufferedReader in = null;
        try
        {
            HttpClient client = new DefaultHttpClient();
            HttpGet request = new HttpGet();
            request.setURI("http://w26.javaeye.com");
            HttpResponse response = client.execute(request); in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            StringBuffer sb = new StringBuffer("");
            String line = "";
            String NL = System.getProperty("line.separator");
            while ((line = in .readLine())! = null)
            {
                sb.append(line NL);
            } in .close();
            String page = sb.toString();
            Log.i(TAG, page);
        }
        catch (Exception e)
        {
            Log.e(TAG, e.toString())
        }
        finally
        {
            if ( in ! = null)
            {
                try
                { in .close();
                }
                catch (IOException ioe)
                {
                    Log.e(TAG, ioe.toString());
                }
            }
        }
    }
}

With parameters of HTTP GET:

1	HttpGet request = new HttpGet ( "http://www.baidu.com/s?wd=amos_tl"); client.execute (request);

HTTP POST Example:

  public class TestHttpPostMethod (public void post () (BufferedReader in = null; try (HttpClient client = new DefaultHttpClient (); HttpPost request = new HttpPost ( &quot;http://localhost/upload.jsp"); List <NameValuePair> postParams = new ArrayList <NameValuePair> (); postParams.add (new BasicNameValuePair ( "filename", "sex.mov")); UrlEncodeFormEntity formEntity = new UrlEncodeFormEntity (postParams); request.setEntity (formEntity); HttpResponse response = client.execute ( request); in = new BufferedReader (new InputStreamReader (response.getEntity (). getContent ())); StringBuffer sb = new StringBuffer (""); String line = ""; String NL = System.getProperty ( "line.separator "); while ((line = in.readLine ())! = null) (sb.append (line   NL);) in.close (); String result = sb.toString (); Log.i (TAG, result);) catch (Exception e) (Log.e (TAG, e.toString ())) finally (if (in! = null) (try (in.close ();) catch (IOException ioe) (Log. e (TAG, ioe.toString ());)))))

multipart POST support:

Requires the following support:
Commons IO

http://commons.apache.org/io/

Mime4j

http://james.apache.org/mime4j/

HttpMime

http://hc.apache.org/httpcomponents-client/httpmime/index.html

Download all the JAR URL:

http://www.sayedhashimi.com/downloads/android/multipart-android.zip

multipart POST Example:

  public class TestHttpMultipartPost (public void mulPost () (try (InputStram in = this.getAssets (). open ( &quot;data.xml&quot;); HttpClient client = new HttpDefaultHttpClient (); HttpPost request = new HttpPost ( &quot;http://localhost / upload.jsp "); byte [] data = IOUtils.toByteArray (in); InputStreamBody isb = new InputStreamBody (new ByteArrayIntputStream (data)," uploadedFile "); StringBody sb1 = new StringBody (" some text "); StringBoyd sb2 = new StringBody ( "some text too"); MultipartEntity me = new MultipartEntity (); me.addPart ( "uploadedFile", isb); me.addPart ( "one", sb1); me.addPart ( "two", sb2 ); request.setEntity (me); HttpRespones response = client.excute (request); res.getEntity (). getContent (). close ();) catch (Throwable e) (Log.e (TAG, e.toString ( ));)))

Exception handling retry processing

The use of multi-threading problem ClientConnectionManager, to create a thread-safe HttpClient.

  public class ApplicationEx extends Application (public static final String TAG = &quot;amos_tl&quot;; private HttpClient client = null; @ override public void onCreate () (super.onCreate (); client = createHttpClient ();) @ override public void onLowMemory () (super.onLowMemory (); shutdownHttpClient ();) @ override public void onTerminate () (super.onTerminate (); shutdownHttpClient ();) private void shutdownHttpClient () (if (client! = null &amp; &amp; client.getConnectionManager ()! = null) (client.getConnectionManager (). shutdown (); client = null;)) private HttpClient createHttpClient () (Log.d (TAG, &quot;create httpclient ...&quot;); HttpParams params = new BasicHttpParams (); HttpProtocolParams . setVersion (params, HttpVersion.HTTP_1_1); HttpProtocolParams.setContentCharset (params, HTTP.DEFAULT_CONTENT_CHARSET); HttpProtocolParams.setUseExpectContinue (params, true); SchemaRegistry sr = new SchemaRegistry (); sr.register (new Schema ( &quot;http&quot;, PlainSocketFactory . getSocketFactory (), 80)); sr.register (new Schema ( &quot;https&quot;, SLLSocketFactory.getSocketFactory (), 443)); ClientConnectionManager cm = new ThreadSafeClientConnManager (params, sr); return new DefaultHttpClient (cm, params); ) public HttpClient getHttpClient () (return client;))

HttpActivity.java

  public class HttpActivity extends Activity (@ override public void onCreate (Bundle savedInstanceState) (super.onCreate (savedInstanceState); Log.d (TAG, &quot;httpactivity startup ...&quot;); getHttpContent ();) private void getHttpContent () (try (ApplicationEx app = (ApplicationEx) this.getApplication (); HttpClient client = app.getHttpClient (); HttpGet request = new HttpGet (); request.setURI ( &quot;http://w26.javaeye.com"); HttpResponse response = client.excute (resquest); String page = EntityUtils.toString (response.getEntity ()); Log.i (TAG, page);) catch (Exception e) (Log.e (TAG, e.toString ()); )))

Configuration AndroidManifest.xml
android: label = "@ string / app_name"
android: name = "ApplictionEx"
"

Tags: android, http, service

Development Interactive Voice Response service using Mobicents and jBPM

support — Fri, 16 Oct 2009 06:10:56 +0000

This is my first blog message:)

At the final end I am going to blog about Mobicents Media server and other components of Mobicents platform. How to use it for development of the telco applications. Let’s start from one of the widely used telco application

IVR, or Interactive Voice Response, is one of the most used types of telco application. It automates the interaction (retrieval and input of data) with a database, typically through the use of a touch-tone (DTMF) telephone. Most of us use some type of IVR application every day. Whether it’s to check bank balances or transfer funds, manage credit cards, order prescription medicine, verify flight information or check for store hours or locations.

Media server which is responsible for voice and DTMF tone processing is one of the manadatory element of network infrastructure. The modern network suppose that the Media server is a dump thing and is under control from intelligent call controller application which is placed on the signaling way. In other words we can say that Media Server is doing a “black job” for call controller :) But media server still has to provide usefull interfaces for call controller.

All media server work always will be joined with call controller application. Fortunately now the process of writting telco-grade applications is more simple then several years ago. But anyway the telco was traditionaly closed area and is new now for most of the mainstream developers. I think would be interested to start blogging about Mobicents Media server from paper which explains how to write telco application.

So, it is started but not completed yet. Stay turned.

http://groups.google.com/group/mobicents-public/web/interactive-voice-response-by-jbpm

Tags: development, interactive, response, service, voice