root / src / com / rackspacecloud / android / ListServersActivity.java @ e7534f91
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/**
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*
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*/
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package com.rackspacecloud.android; |
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import java.util.ArrayList; |
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import android.app.AlertDialog; |
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import android.app.ListActivity; |
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import android.content.Context; |
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import android.content.DialogInterface; |
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import android.content.Intent; |
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import android.os.AsyncTask; |
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import android.os.Bundle; |
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import android.util.Log; |
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import android.view.LayoutInflater; |
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import android.view.Menu; |
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import android.view.MenuInflater; |
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import android.view.MenuItem; |
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import android.view.View; |
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import android.view.ViewGroup; |
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import android.widget.ArrayAdapter; |
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import android.widget.ImageView; |
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import android.widget.ListView; |
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import android.widget.TextView; |
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import com.rackspace.cloud.servers.api.client.CloudServersException; |
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import com.rackspace.cloud.servers.api.client.Server; |
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import com.rackspace.cloud.servers.api.client.ServerManager; |
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/**
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* @author Mike Mayo - mike.mayo@rackspace.com - twitter.com/greenisus
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*
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*/
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public class ListServersActivity extends ListActivity { |
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private Server[] servers; |
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private Context context; |
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@Override
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public void onCreate(Bundle savedInstanceState) { |
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super.onCreate(savedInstanceState);
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context = getApplicationContext(); |
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restoreState(savedInstanceState); |
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} |
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@Override
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protected void onSaveInstanceState(Bundle outState) { |
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super.onSaveInstanceState(outState);
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outState.putSerializable("servers", servers);
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} |
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private void restoreState(Bundle state) { |
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if (state != null && state.containsKey("servers") && state.getSerializable("servers") != null) { |
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servers = (Server[]) state.getSerializable("servers"); |
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if (servers.length == 0) { |
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displayNoServersCell(); |
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} else {
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getListView().setDividerHeight(1); // restore divider lines |
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setListAdapter(new ServerAdapter());
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} |
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} else {
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loadServers(); |
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} |
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} |
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protected void onListItemClick(ListView l, View v, int position, long id) { |
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if (servers != null && servers.length > 0) { |
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Intent viewIntent = new Intent(this, ViewServerActivity.class); |
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viewIntent.putExtra("server", servers[position]);
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startActivityForResult(viewIntent, 55); // arbitrary number; never used again |
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} |
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} |
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private void loadServers() { |
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displayLoadingCell(); |
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new LoadServersTask().execute((Void[]) null); |
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} |
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private void setServerList(ArrayList<Server> servers) { |
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if (servers == null) { |
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servers = new ArrayList<Server>(); |
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} |
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String[] serverNames = new String[servers.size()]; |
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this.servers = new Server[servers.size()]; |
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if (servers != null) { |
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for (int i = 0; i < servers.size(); i++) { |
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Server server = servers.get(i); |
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this.servers[i] = server;
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serverNames[i] = server.getName(); |
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} |
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} |
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if (serverNames.length == 0) { |
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displayNoServersCell(); |
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} else {
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getListView().setDividerHeight(1); // restore divider lines |
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setListAdapter(new ServerAdapter());
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} |
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} |
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private void displayLoadingCell() { |
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String a[] = new String[1]; |
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a[0] = "Loading..."; |
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setListAdapter(new ArrayAdapter<String>(this, R.layout.loadingcell, R.id.loading_label, a)); |
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getListView().setTextFilterEnabled(true);
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getListView().setDividerHeight(0); // hide the dividers so it won't look like a list row |
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getListView().setItemsCanFocus(false);
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} |
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private void displayNoServersCell() { |
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String a[] = new String[1]; |
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a[0] = "No Servers"; |
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setListAdapter(new ArrayAdapter<String>(this, R.layout.noserverscell, R.id.no_servers_label, a)); |
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getListView().setTextFilterEnabled(true);
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getListView().setDividerHeight(0); // hide the dividers so it won't look like a list row |
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getListView().setItemsCanFocus(false);
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} |
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private void showAlert(String title, String message) { |
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//Can't create handler inside thread that has not called Looper.prepare()
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//Looper.prepare();
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try {
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AlertDialog alert = new AlertDialog.Builder(this).create(); |
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alert.setTitle(title); |
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alert.setMessage(message); |
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alert.setButton("OK", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int which) { |
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return;
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} }); |
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alert.show(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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private class LoadServersTask extends AsyncTask<Void, Void, ArrayList<Server>> { |
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private CloudServersException exception;
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@Override
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protected void onPreExecute(){ |
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Log.d("info", "captin load called"); |
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} |
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@Override
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protected ArrayList<Server> doInBackground(Void... arg0) { |
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ArrayList<Server> servers = null; |
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try {
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servers = (new ServerManager()).createList(true, context); |
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} catch (CloudServersException e) {
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exception = e; |
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} |
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return servers;
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} |
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@Override
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protected void onPostExecute(ArrayList<Server> result) { |
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if (exception != null) { |
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showAlert("Error", exception.getMessage());
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} |
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setServerList(result); |
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} |
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} |
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@Override
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public boolean onCreateOptionsMenu(Menu menu) { |
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super.onCreateOptionsMenu(menu);
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MenuInflater inflater = getMenuInflater(); |
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inflater.inflate(R.menu.servers_list_menu, menu); |
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return true; |
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} |
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@Override
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public boolean onOptionsItemSelected(MenuItem item) { |
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switch (item.getItemId()) {
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case R.id.add_server:
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startActivityForResult(new Intent(this, AddServerActivity.class), 56); // arbitrary number; never used again |
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return true; |
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case R.id.refresh:
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servers = null;
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loadServers(); |
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return true; |
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} |
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return false; |
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} |
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//*/
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class ServerAdapter extends ArrayAdapter<Server> { |
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ServerAdapter() { |
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super(ListServersActivity.this, R.layout.listservercell, servers);
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} |
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public View getView(int position, View convertView, ViewGroup parent) { |
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Server server = servers[position]; |
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LayoutInflater inflater = getLayoutInflater(); |
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View row = inflater.inflate(R.layout.listservercell, parent, false); |
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TextView label = (TextView) row.findViewById(R.id.label); |
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label.setText(server.getName()); |
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TextView sublabel = (TextView) row.findViewById(R.id.sublabel); |
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sublabel.setText(server.getFlavor().getName() + " - " + server.getImage().getName());
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ImageView icon = (ImageView) row.findViewById(R.id.icon); |
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icon.setImageResource(server.getImage().iconResourceId()); |
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return(row);
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} |
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} |
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) { |
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super.onActivityResult(requestCode, resultCode, data);
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if (resultCode == RESULT_OK) {
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// a sub-activity kicked back, so we want to refresh the server list
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loadServers(); |
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} |
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} |
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} |