Android Open Source - snakk-ads-android-sample-app T V A S T Postback Task

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License

The source code is released under:

Copyright (c) 2012, Snakk! Media Group All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are m...

Java Source Code

package com.snakk.vastsdk;
/*ww  w  . j  ava  2  s  . c o  m*/
import android.os.AsyncTask;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;

public class TVASTPostbackTask extends AsyncTask<Integer, Integer, Object> {

    /**
     * Callbacks for TVASTPostbackTask.
     */
    public interface TVASTPostbackListener {
        /**
         * This event is fired after AlertAd is loaded and ready to be displayed.
         */
        public void onSuccess(String data);

        /**
         * This event is fired after AlertAd is displayed.
         */
        public void onFailure(Exception error);
    }

    private String mUrl;
    private TVASTPostbackListener mListener;

    public TVASTPostbackListener getListener() {
        return mListener;
    }

    public void setListener(TVASTPostbackListener listener) {
        mListener = listener;
    }

    private String postbackRequest(String url) throws IOException {
        DefaultHttpClient client = new DefaultHttpClient();
        HttpGet get = new HttpGet(url);
        HttpResponse response = client.execute(get);
        HttpEntity entity = response.getEntity();
        InputStream inputStream = entity.getContent();
        BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream, 8192);
        String responseValue = readInputStream(bufferedInputStream);
        bufferedInputStream.close();
        inputStream.close();
        return responseValue;
    }

    private static String readInputStream(BufferedInputStream in) throws IOException {
        StringBuffer out = new StringBuffer();
        byte[] buffer = new byte[8192];
        for (int n; (n = in.read(buffer)) != -1; ) {
            out.append(new String(buffer, 0, n));
        }
        return out.toString();
    }

    public TVASTPostbackTask(String url) {
        mUrl = url;
    }

    @Override
    protected Object doInBackground(Integer... params) {
        if (mUrl == null)
            return null;

        //Log.d("SnakkVASTSDK", mUrl);
        String data;
        try {
            data = postbackRequest(mUrl);
            return data;
        } catch (IOException e) {
            return e;
        }
    }

    @Override
    protected void onPostExecute(Object response) {
        //Log.d("SnakkVASTSDK", response);
        String error = null;

        if (response instanceof String) {
            try {
                JSONObject jsonObject = new JSONObject((String) response);

                if (jsonObject.has("error")) {
                    error = jsonObject.getString("error");
                    Exception e = new Exception(error);
                    if (mListener != null) {
                        mListener.onFailure(e);
                    }
                } else {
                    if (mListener != null) {
                        mListener.onSuccess((String) response);
                    }
                }
            } catch (JSONException jsonE) {
                if (mListener != null) {
                    mListener.onSuccess((String) response);
                }
            }
        } else if (response instanceof Exception) {
            if (mListener != null) {
                mListener.onFailure((Exception) response);
            }
        }
    }
}

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