Synnefo » Pithos Android Client

package com.rackspacecloud.android;

import java.util.ArrayList;

import android.app.AlertDialog;

import android.app.ListActivity;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.TextView;

import com.rackspace.cloud.files.api.client.Container;

import com.rackspace.cloud.files.api.client.ContainerManager;

import com.rackspace.cloud.servers.api.client.CloudServersException;

/**

 * 

 * @author Phillip Toohill

 * 

 */

public class ListContainerActivity extends ListActivity {

        protected static final int DELETE_ID = 0;

        private Container[] containers;

        public Container container;

        public Container cdnContainer;

        public String[] containerNames;

        public Object megaBytes;

        public Object kiloBytes;

        public int bConver = 1048576;

        public int kbConver = 1024;

        private Context context;

        private boolean loading;

        @Override

        public void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                context = getApplicationContext();

                restoreState(savedInstanceState);

        }

        @Override

        protected void onSaveInstanceState(Bundle outState) {

                super.onSaveInstanceState(outState);

                outState.putSerializable("container", containers);

                outState.putBoolean("loading", loading);

        }

        private void restoreState(Bundle state) {

                if(state != null && state.containsKey("loading") && state.getBoolean("loading")){

                        loadContainers();

                        registerForContextMenu(getListView());

                }

                else if (state != null && state.containsKey("container") && state.getSerializable("container") != null) {

                        containers = (Container[]) state.getSerializable("container");

                        if (containers.length == 0) {

                                displayNoServersCell();

                        } else {

                                getListView().setDividerHeight(1); // restore divider lines

                                setListAdapter(new FileAdapter());

                        }

                } else {

                        loadContainers();

                        registerForContextMenu(getListView());

                }

        }

        protected void onListItemClick(ListView l, View v, int position, long id) {

                if (containers != null && containers.length > 0) {

                        Intent viewIntent = new Intent(this, ContainerObjectsActivity.class);

                        viewIntent.putExtra("container", containers[position]);

                        startActivityForResult(viewIntent, 55);

                }

        }

        private void loadContainers() {

                displayLoadingCell();

                new LoadContainersTask().execute((Void[]) null);

        }

        private void setContainerList() {

                if (containerNames.length == 0) {

                        displayNoServersCell();

                } else {

                        getListView().setDividerHeight(1); // restore divider lines

                        setListAdapter(new FileAdapter());

                }

        }

        private void displayLoadingCell() {

                String a[] = new String[1];

                a[0] = "Loading...";

                setListAdapter(new ArrayAdapter<String>(this, R.layout.loadingcell,

                                R.id.loading_label, a));

                getListView().setTextFilterEnabled(true);

                getListView().setDividerHeight(0); // hide the dividers so it won't look

                                                                                        // like a list row

                getListView().setItemsCanFocus(false);

        }

        private void displayNoServersCell() {

                String a[] = new String[1];

                a[0] = "No Files";

                setListAdapter(new ArrayAdapter<String>(this,

                                R.layout.nocontainerscell, R.id.no_containers_label, a));

                getListView().setTextFilterEnabled(true);

                getListView().setDividerHeight(0); // hide the dividers so it won't look

                                                                                        // like a list row

                getListView().setItemsCanFocus(false);

        }

        private void showAlert(String title, String message) {

                // Can't create handler inside thread that has not called

                // Looper.prepare()

                // Looper.prepare();

                try {

                        AlertDialog alert = new AlertDialog.Builder(this).create();

                        alert.setTitle(title);

                        alert.setMessage(message);

                        alert.setButton("OK", new DialogInterface.OnClickListener() {

                                public void onClick(DialogInterface dialog, int which) {

                                        return;

                                }

                        });

                        alert.show();

                } catch (Exception e) {

                        e.printStackTrace();

                }

        }

        private class LoadContainersTask extends

                        AsyncTask<Void, Void, ArrayList<Container>> {

                private CloudServersException exception;

                @Override

                protected void onPreExecute(){

                        loading = true;

                }

                @Override

                protected ArrayList<Container> doInBackground(Void... arg0) {

                        ArrayList<Container> containers = null;

                        try {

                                containers = (new ContainerManager(context)).createList(true);

                        } catch (CloudServersException e) {

                                exception = e;

                        }

                        return containers;

                }

                @Override

                protected void onPostExecute(ArrayList<Container> result) {

                        if (exception != null) {

                                showAlert("Error", exception.getMessage());

                        }

                        ArrayList<Container> containerList = result;

                        containerNames = new String[containerList.size()];

                        containers = new Container[containerList.size()];

                        if (containerList != null) {

                                for (int i = 0; i < containerList.size(); i++) {

                                        Container container = containerList.get(i);

                                        containers[i] = container;

                                        containerNames[i] = container.getName();

                                }

                        }

                        loading = false;

                        new LoadCDNContainersTask().execute((Void[]) null);

                }

        }

        private class LoadCDNContainersTask extends

                        AsyncTask<Void, Void, ArrayList<Container>> {

                private CloudServersException exception;

                @Override

                protected void onPreExecute(){

                        loading = true;

                }

                @Override

                protected ArrayList<Container> doInBackground(Void... arg0) {

                        ArrayList<Container> cdnContainers = null;

                        try {

                                cdnContainers = (new ContainerManager(context)).createCDNList(true);

                        } catch (CloudServersException e) {

                                exception = e;

                        }

                        return cdnContainers;

                }

                @Override

                protected void onPostExecute(ArrayList<Container> result) {

                        Log.v("listcontainerActivity", "onPostExecute loadCDNcontainerTask");

                        if (exception != null) {

                                showAlert("Error", exception.getMessage());

                        }

                        ArrayList<Container> cdnContainers = result;

                        for (int i = 0; i < containers.length; i++) {

                                Container container = containers[i];

                                for (int t = 0; t < cdnContainers.size(); t++) {

                                        Container cdnContainer = cdnContainers.get(t);

                                        if (container.getName().equals(cdnContainer.getName())) {

                                                container.setCdnEnabled(cdnContainer.isCdnEnabled());

                                                container.setCdnUrl(cdnContainer.getCdnUrl());

                                                container.setTtl(cdnContainer.getTtl());

                                        }

                                }

                        }

                        setContainerList();

                        loading = false;

                }

        }

        @Override

        public boolean onCreateOptionsMenu(Menu menu) {

                super.onCreateOptionsMenu(menu);

                MenuInflater inflater = getMenuInflater();

                inflater.inflate(R.menu.container_list_menu, menu);

                return true;

        }

        @Override

        public boolean onOptionsItemSelected(MenuItem item) {

                switch (item.getItemId()) {

                case R.id.add_container:

                        startActivityForResult(

                                        new Intent(this, AddContainerActivity.class), 56); // arbitrary number never used again

                        return true;

                case R.id.refresh:

                        containers = null;

                        loadContainers();

                        return true;

                }

                return false;

        }

        class FileAdapter extends ArrayAdapter<Container> {

                FileAdapter() {

                        super(ListContainerActivity.this, R.layout.listcontainerscell,

                                        containers);

                }

                public View getView(int position, View convertView, ViewGroup parent) {

                        Container container = containers[position];

                        LayoutInflater inflater = getLayoutInflater();

                        View row = inflater.inflate(R.layout.listcontainerscell, parent,

                                        false);

                        TextView label = (TextView) row.findViewById(R.id.label);

                        label.setText(container.getName());

                        if (container.getBytes() >= bConver) {

                                megaBytes = Math.abs(container.getBytes() / bConver + 0.2);

                                TextView sublabel = (TextView) row.findViewById(R.id.sublabel);

                                sublabel.setText(container.getCount() + " Objects " + megaBytes

                                                + " MB");

                        } else if (container.getBytes() >= kbConver) {

                                kiloBytes = Math.abs(container.getBytes() / kbConver + 0.2);

                                TextView sublabel = (TextView) row.findViewById(R.id.sublabel);

                                sublabel.setText(container.getCount() + " Objects " + kiloBytes

                                                + " KB");

                        } else {

                                TextView sublabel = (TextView) row.findViewById(R.id.sublabel);

                                sublabel.setText(container.getCount() + " Objects "

                                                + container.getBytes() + " B");

                        }

                        return (row);

                }

        }

        @Override

        public void onActivityResult(int requestCode, int resultCode, Intent data) {

                super.onActivityResult(requestCode, resultCode, data);

                if (resultCode == RESULT_OK) {

                        // a sub-activity kicked back, so we want to refresh the server list

                        loadContainers();

                }

        }

}