Android Open Source - ItopMobile Main Activity

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License

The source code is released under:
GNU General Public License
If you think the Android project ItopMobile listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

// Copyright (C) 2011-2013 ITOMIG GmbH
//// w w  w  . j  av a  2s  .c  o m
//   This file is part of iTopMobile.
//
//   iTopMobile is free software; you can redistribute it and/or modify  
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation, either version 3 of the License, or
//   (at your option) any later version.
//
//   iTopMobile is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of the GNU General Public License
//   along with iTopMobile. If not, see <http://www.gnu.org/licenses/>

package de.itomig.itoplib;

import static de.itomig.itoplib.ItopConfig.*;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import com.google.gson.reflect.TypeToken;
import de.itomig.itoplib.cmdb.InternalTask;
import de.itomig.itoplib.cmdb.ItopTicket;
import android.app.Activity;
import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Resources;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

  private NotificationManager notificationManager;

  private Handler mTimer = new Handler(); // used for all timer based actions
  protected int timerTick = 0;

  protected String expression;
  private boolean taskRequestRunningFlag = false;
  private boolean ticketRequestRunningFlag = false;

  private ListView lv;
  private TextView emptyView;

  List<ItopTicket> listOfTickets;
  TicketAdapter adapter;

  List<InternalTask> listOfTasks;
  TaskAdapter taskAdapter;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if (debug)
      Log.i(TAG, this.getLocalClassName() + " - onCreate");
    setContentView(R.layout.ticket);

    initPrioStrings();

    lv = (ListView) findViewById(R.id.listview01);

    lv.setClickable(true);
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

      public void onItemClick(AdapterView<?> arg0, View arg1,
          int position, long arg3) {

        if (debug)
          Log.d(TAG, "click, my adapter is"
              + arg0.getAdapter().toString());

        if (arg0.getAdapter().toString().contains("Task")) {
          Intent myIntent = new Intent(MainActivity.this,
              TaskDetailActivity.class);
          myIntent.putExtra("task", tasks.get(position));
          startActivity(myIntent);
        } else {
          // Do not open if tickets[0].type equals the error type.
          if (!tickets.get(position).getType().equals(ERROR)) {

            Intent myIntent = new Intent(MainActivity.this,
                TicketDetailActivity.class);
            myIntent.putExtra("ticket", tickets.get(position));
            startActivity(myIntent);
          }
        }
      }
    });
    emptyView = (TextView) findViewById(R.id.empty);
    lv.setEmptyView(emptyView);

    if (tickets != null)
      lv.setAdapter(new TicketAdapter(MainActivity.this, tickets));
    String svcName = Context.NOTIFICATION_SERVICE;
    notificationManager = (NotificationManager) getSystemService(svcName);

  }

  @Override
  protected void onResume() {
    super.onResume();
    if (debug)
      Log.i(TAG, this.getLocalClassName() + " - onResume");
    notificationManager.cancel(NOTIFICATION_ID_INCIDENT);

    if (debug)
      Log.i(TAG,
          this.getLocalClassName() + " lookup(20)="
              + personLookup.get(20));

    if (this.getLocalClassName().contains("Task")) {
      if (tasks != null) {
        lv.setAdapter(new TaskAdapter(MainActivity.this, tasks));
        ((BaseAdapter) lv.getAdapter()).notifyDataSetChanged();
      }

    } else {
      // use data which are persistent in ItopApplication if stored by
      // same activity
      if (tickets != null) {
        lv.setAdapter(new TicketAdapter(MainActivity.this, tickets));
        ((BaseAdapter) lv.getAdapter()).notifyDataSetChanged();
      }
    }
    startTimer();
    update();
    registerReceiver(broadcastReceiver, new IntentFilter(
        BackgroundCheck.NEW_INCIDENT_BROADCAST));

  }

  @Override
  protected void onPause() {
    super.onPause();
    if (debug)
      Log.i(TAG, this.getLocalClassName() + " - onPause");
    stopTimer();
    unregisterReceiver(broadcastReceiver);
  }

  private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {

      String incsText = intent.getStringExtra("incsText");

      if ((incsText != null) && (incsText.length() > 0)) {
        toast("Prio1 Incident(s)!\n" + incsText);
        notificationManager.cancel(NOTIFICATION_ID_INCIDENT);
      }
    }
  };

  private void update() {

    getParent().setProgressBarIndeterminateVisibility(true);
    getParent().setProgressBarVisibility(true);

    if (this.getLocalClassName().contains("Task")) {
      if (taskRequestRunningFlag == false) {
        taskRequestRunningFlag = true;
        if (debug)
          Log.i(TAG, this.getLocalClassName() + " - update() Tasks");

        if (DataConnection.isConnected(itopAppContext)) {
          RequestJSONDataFromServerTask reqServer = new RequestJSONDataFromServerTask();
          reqServer.execute("");
        } else {
          toast("no dataconnection, cannot reach itop server.");
        }
      }

    } else {
      if (ticketRequestRunningFlag == false) {
        ticketRequestRunningFlag = true;
        if (debug)
          Log.i(TAG, this.getLocalClassName() + " - update() Tickets");
        RequestTicketsFromServerTask reqServer = new RequestTicketsFromServerTask();
        reqServer.execute(expression);
      }
    }

  }

  private void startTimer() {
    long refreshRate = 1000L * ItopConfig.getRefreshRateSeconds(); // milliseconds
    mTimer.removeCallbacks(mUpdateTimeTask);
    mTimer.postDelayed(mUpdateTimeTask, refreshRate);
  }

  private void stopTimer() {
    mTimer.removeCallbacks(mUpdateTimeTask);
  }

  private Runnable mUpdateTimeTask = new Runnable() {
    public void run() {
      long refreshRate = 1000 * ItopConfig.getRefreshRateSeconds();
      update();
      mTimer.removeCallbacks(this);
      mTimer.postDelayed(this, refreshRate);
    }
  };

  Comparator<ItopTicket> comperator = new Comparator<ItopTicket>() {
    // compare priority first, then compare "lastUpdate" date of ticket
    public int compare(ItopTicket object1, ItopTicket object2) {
      if (object1.getPriority() == object2.getPriority()) {
        return (-object1.getOQLLastUpdate().compareTo(
            object2.getOQLLastUpdate()));
      }
      if (object1.getPriority() > object2.getPriority()) {
        return 1;
      } else {
        return -1;
      }
    }
  };

  Comparator<InternalTask> comperatorTask = new Comparator<InternalTask>() {
    // compare priority first, then compare "lastUpdate" date of ticket
    public int compare(InternalTask object1, InternalTask object2) {
      if (ItopConfig.getNumericalPriority(object1.priority) >= ItopConfig
          .getNumericalPriority(object2.priority)) {
        return 1;
      } else {
        return -1;
      }
    }
  };

  protected class RequestTicketsFromServerTask extends
      AsyncTask<String, Void, ArrayList<ItopTicket>> {

    @Override
    protected void onPreExecute() {
      emptyView.setText(getString(R.string.loading));
    }

    @Override
    protected ArrayList<ItopTicket> doInBackground(String... expr) {
      ArrayList<ItopTicket> reqTickets = new ArrayList<ItopTicket>();
      try {
        reqTickets = GetItopData.getTicketsFromItopServer(expr[0]);
      } catch (Exception e) {
        e.printStackTrace();
      }

      return reqTickets;
    }

    @Override
    protected void onPostExecute(ArrayList<ItopTicket> resTickets) {
      ticketRequestRunningFlag = false;
      getParent().setProgressBarIndeterminateVisibility(false);
      getParent().setProgressBarVisibility(false);

      if (resTickets == null) {
        Log.e(TAG,
            "RequestTicketsFromServerTask - postexecute: received null response");
        return;
      }
      // TODO add error checking....
      tickets = new ArrayList<ItopTicket>(resTickets);

      // sort by priority
      Collections.sort(tickets, comperator);

      lv.setAdapter(new TicketAdapter(MainActivity.this, tickets));
      ((BaseAdapter) lv.getAdapter()).notifyDataSetChanged();

      if (debug)
        Log.i(TAG, "RequestTicketsFromServerTask - postexecute");
      emptyView.setText(getString(R.string.no_tickets));
    }

  }

  /**
   * AsyncTask for requesting some JSON data from the itop server 
   * @author mblank
   *
   */
  protected class RequestJSONDataFromServerTask extends
      AsyncTask<String, Void, String> {

    @Override
    protected void onPreExecute() {
      emptyView.setText(getString(R.string.loading));

    }

    @Override
    protected String doInBackground(String... expr) {
      String resp = "";
      try {

        resp = GetItopJSON
            .postJsonToItopServer(
                "core/get",
                "InternalTask",
                "SELECT InternalTask WHERE person_id = :current_contact_id",
                "name, priority, person_name, person_id, description,remarks,person_id_friendlyname"); // expr[0]

      } catch (Exception e) {
        e.printStackTrace();
      }

      return resp;
    }

    @Override
    protected void onPostExecute(String resp) {
      taskRequestRunningFlag = false;
      getParent().setProgressBarIndeterminateVisibility(false);
      getParent().setProgressBarVisibility(false);

      if (resp == null) {
        Log.e(TAG, "server response = null.");
        toast("server response = null.");
        return;
      }

      // check for ERROR in resp String
      if ((resp.length() >= 5)
          && (resp.substring(0, 5).toLowerCase().equals("error"))) {
        Log.e(TAG, "server error =" + resp);
        toast("server error =" + resp);
        return;

      }

      // check for error message in JSON string
      String message = GetItopJSON.getMessage(resp);
      if (message.length() > 0) {
        Log.e(TAG, "server error =" + message);
        if (message.toLowerCase().contains("not a valid class")) {
          toast("Task Extension not installed on iTop Server, disable Tasks!");
        } else {
          toast("server error =" +message);
        }
      }

      if (debug)
        Log.d(TAG, "json response - postexecute" + resp);

      Type type = new TypeToken<InternalTask>() {
      }.getType();
      tasks = GetItopJSON.getArrayFromJson(resp, type);

      if (tasks != null) {
        Log.d(TAG, "#tasks= " + tasks.size());

      }

      // sort by priority
      Collections.sort(tasks, comperatorTask);

      lv.setAdapter(new TaskAdapter(MainActivity.this, tasks));
      ((BaseAdapter) lv.getAdapter()).notifyDataSetChanged();
      emptyView.setText(getString(R.string.no_tasks));
    }
  }

  public void toast(String string) {
    Toast.makeText(this, string, Toast.LENGTH_LONG).show();
  }

  // language dependent resources string !!!
  public void initPrioStrings() {
    Resources res = getResources();
    prioStrings = res.getStringArray(R.array.priority);
  }

}
Java Source Code List
