Android Open Source - Android-SDK-Manager Fragment Fetch

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License

The source code is released under:

Apache License

Java Source Code

package com.pk.androidsdk.fragment;
/*from   w  w  w.  j  a  va2  s  . c  o  m*/
import java.io.BufferedInputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;

import com.pk.androidsdk.R;
import com.pk.androidsdk.model.SDKArchive;
import com.pk.androidsdk.model.SDKPackage;

public class FragmentFetch extends Fragment
{
  private String LOG = "FragmentFetch";
  
  // Views
  private Button btnFetch;
  private TextView txtResult;
  
  //
  private List<SDKPackage> packageList;
  private Map<String, String> licenses;
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
  {
    View view = inflater.inflate(R.layout.fragment_fetch, container, false);
    
    initViews(view);
    btnFetch.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        new FetchAsyncTask(getActivity()).execute("https://dl-ssl.google.com/android/repository/");
      }
    });
    
    return view;
  }
  
  private void initViews(View v)
  {
    btnFetch = (Button) v.findViewById(R.id.btnFetch);
    txtResult = (TextView) v.findViewById(R.id.txtResult);
  }
  
  private class FetchAsyncTask extends AsyncTask<String, Void, String>
  {
    private Context context;
    private List<SDKPackage> mList;
    
    public FetchAsyncTask(Context context)
    {
      this.context = context;
      this.mList = null;
    }
    
    @Override
    protected String doInBackground(String... urls)
    {
      String result = "";
      String[] manifests = { "addon.xml", "repository-8.xml" };
      licenses = new HashMap<String, String>();
      
      for (String manifest : manifests)
      {
        try
        {
          URL url = new URL(urls[0] + manifest);
          HttpURLConnection conn = (HttpURLConnection) url.openConnection();
          try
          {
            InputStream in = new BufferedInputStream(conn.getInputStream());
            DocumentBuilderFactory bfactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = bfactory.newDocumentBuilder();
            Document doc = builder.parse(in);
            
            SDKPackage mPackage = null;
            result += "Fetched " + manifest + "\n";
            NodeList nodes = doc.getElementsByTagName("*");
            for (int i = 0; i < nodes.getLength(); i++)
            {
              Node child = nodes.item(i);
              
              if (child.getNodeName().equals("sdk:add-on") || child.getNodeName().equals("sdk:platform") || child.getNodeName().equals("sdk:extra"))
              {
                //mList.add(new SDKPackage(child, mList, getActivity()));
                child = child.getFirstChild();
                while(child != null)
                {
                  if (child.getNodeName().equals("sdk:archives"))
                  {
                    mPackage = new SDKPackage();
                    Node archiveChild = child.getFirstChild();
                    List<SDKArchive> archives = new ArrayList<SDKArchive>();
                    while (archiveChild != null)
                    {
                      if (archiveChild.getNodeName().equals("sdk:archive"))
                      {
                        SDKArchive archive = new SDKArchive();
                        NamedNodeMap attrs = archiveChild.getAttributes();

                                Node archNode = attrs.getNamedItem("arch");
                                if (archNode != null)
                                        archive.setArchitecture(archNode.getTextContent());

                                Node osNode = attrs.getNamedItem("os");
                                if (osNode != null)
                                        archive.setOperatingSystem(osNode.getTextContent());

                                Node archChild = archiveChild.getFirstChild();
                                while (archChild != null)
                                {
                                        if (child.getNodeName().equals("sdk:url"))
                                          archive.setURL(archChild.getTextContent());
                                        else if (child.getNodeName().equals("sdk:checksum"))
                                          archive.setChecksum(archChild.getTextContent());
                                        else if (child.getNodeName().equals("sdk:size"))
                                          archive.setSize(Integer.parseInt(archChild.getTextContent()));

                                    Node checksumTypeNode = attrs.getNamedItem("type");
                                    if (checksumTypeNode != null)
                                            archive.setChecksumType(checksumTypeNode.getTextContent());
                                        archChild = child.getNextSibling();
                                }
                                
                                // Add archive to list
                        archives.add(archive);
                      }
                      archiveChild = archiveChild.getNextSibling();
                    }
                    packageList.add(mPackage);
                              }
                  
                  Log.v(LOG, "Node Name: " + child.getNodeName());
                  mPackage = null;
                  child = child.getNextSibling();
                }
              }
              else if (child.getNodeName().equals("sdk:license"))
              {
                NamedNodeMap attrs = child.getAttributes();
                if (attrs.getNamedItem("id") != null)
                  licenses.put(attrs.getNamedItem("id").getTextContent(), child.getTextContent());
              }
            }
          }
          catch (Exception e)
          {
            e.printStackTrace();
            result += "Exception " + e.toString() + " on " + manifest + "\n";
          }
          finally
          {
            conn.disconnect();
          }
        }
        catch (Exception e)
        {
          e.printStackTrace();
          result += "Exception " + e.toString() + " on " + manifest + "\n";
        }
      }
      
      return result;
    }
    
    @Override
    protected void onPostExecute(String result)
    {
      txtResult.setText(result);
    }
  }
}

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