root / src / com / rackspacecloud / android / AddMoreNodesActivity.java @ 4f9d1a69
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package com.rackspacecloud.android; |
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import java.io.IOException; |
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import java.io.StringReader; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import javax.xml.parsers.FactoryConfigurationError; |
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import javax.xml.parsers.ParserConfigurationException; |
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import javax.xml.parsers.SAXParser; |
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import javax.xml.parsers.SAXParserFactory; |
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import org.apache.http.HttpResponse; |
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import org.apache.http.client.ClientProtocolException; |
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import org.apache.http.impl.client.BasicResponseHandler; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.XMLReader; |
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import com.rackspace.cloud.loadbalancer.api.client.LoadBalancer; |
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import com.rackspace.cloud.loadbalancer.api.client.LoadBalancerManager; |
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import com.rackspace.cloud.loadbalancer.api.client.Node; |
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import com.rackspace.cloud.servers.api.client.Account; |
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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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import com.rackspace.cloud.servers.api.client.http.HttpBundle; |
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import com.rackspace.cloud.servers.api.client.parsers.CloudServersFaultXMLParser; |
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import android.app.Activity; |
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import android.app.AlertDialog; |
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import android.app.ListActivity; |
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import android.app.ProgressDialog; |
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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.View; |
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import android.view.View.OnClickListener; |
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import android.view.ViewGroup; |
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import android.view.WindowManager; |
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import android.view.ViewGroup.LayoutParams; |
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import android.widget.ArrayAdapter; |
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import android.widget.Button; |
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import android.widget.CheckBox; |
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import android.widget.CompoundButton; |
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import android.widget.LinearLayout; |
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import android.widget.ListView; |
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import android.widget.CompoundButton.OnCheckedChangeListener; |
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import android.widget.ImageView; |
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import android.widget.ProgressBar; |
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import android.widget.TextView; |
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public class AddMoreNodesActivity extends ListActivity { |
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private static final int ADD_NODE_CODE = 178; |
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private Server[] servers; |
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private Context context; |
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private int lastCheckedPos; |
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private ArrayList<Node> nodes; |
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private ArrayList<Node> nodesToAdd; |
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private LoadBalancer loadBalancer;
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ProgressDialog pDialog; |
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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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nodes = (ArrayList<Node>) this.getIntent().getExtras().get("nodes"); |
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loadBalancer = (LoadBalancer) this.getIntent().getExtras().get("loadBalancer"); |
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setContentView(R.layout.addnodes); |
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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("nodes", nodes);
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outState.putSerializable("loadBalancer", loadBalancer);
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outState.putSerializable("nodesToAdd", nodesToAdd);
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} |
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private void restoreState(Bundle state) { |
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context = getApplicationContext(); |
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if (state != null && state.containsKey("nodes")){ |
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nodes = (ArrayList<Node>) state.getSerializable("nodes"); |
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if(nodes == null){ |
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nodes = new ArrayList<Node>(); |
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} |
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} |
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if (state != null && state.containsKey("nodesToAdd")){ |
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nodesToAdd = (ArrayList<Node>) state.getSerializable("nodesToAdd"); |
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} |
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else{
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nodesToAdd = new ArrayList<Node>(); |
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} |
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if (state != null && state.containsKey("server")) { |
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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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Button submitNodes = (Button) findViewById(R.id.submit_nodes_button); |
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submitNodes.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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new AddNodesTask().execute();
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} |
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}); |
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} |
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@Override
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public void onBackPressed(){ |
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setResult(RESULT_CANCELED); |
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finish(); |
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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 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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for(int i = 0; i < servers.size(); i++) { |
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/*
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* if all the IP's of a server are
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* already used as nodes, we do not
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* need to display that server
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*/
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if(!notAllIpsNodes(servers.get(i))){
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servers.remove(i); |
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} |
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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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for(int i = 0; i < servers.size(); i++){ |
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serverNames[i] = servers.get(i).getName(); |
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this.servers[i] = servers.get(i);
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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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/*
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* determine if all the IP's of a server are
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* already used as nodes
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*/
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private boolean notAllIpsNodes(Server server){ |
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for(String address : server.getPrivateIpAddresses()){ |
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if(!nodeHasAddress(address)){
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return true; |
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} |
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} |
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for(String address : server.getPublicIpAddresses()){ |
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if(!nodeHasAddress(address)){
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return true; |
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} |
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} |
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return false; |
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} |
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/*
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* determine is an existing node has IP Address,
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* address
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*/
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private boolean nodeHasAddress(String address){ |
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for(Node n : nodes){
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if(n.getAddress().equals(address)){
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return true; |
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} |
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} |
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return false; |
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} |
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private void loadServers() { |
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new LoadServersTask().execute((Void[]) null); |
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} |
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protected void showDialog() { |
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pDialog = new ProgressDialog(this, R.style.NewDialog); |
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// // Set blur to background
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WindowManager.LayoutParams lp = pDialog.getWindow().getAttributes(); |
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lp.dimAmount = 0.0f;
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pDialog.getWindow().setAttributes(lp); |
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pDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND); |
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pDialog.show(); |
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pDialog.setContentView(new ProgressBar(this), new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); |
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} |
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private void showAlert(String title, String message) { |
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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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} |
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// * Adapter/
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class ServerAdapter extends ArrayAdapter<Server> { |
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ServerAdapter() {
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super(AddMoreNodesActivity.this, R.layout.listservernodecell, servers);
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} |
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public View getView(int position, View convertView, ViewGroup parent) { |
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final Server server = servers[position];
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LayoutInflater inflater = getLayoutInflater(); |
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View row = inflater.inflate(R.layout.listservernodecell, 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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String[] publicIp = server.getPublicIpAddresses(); |
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String[] privateIp = server.getPrivateIpAddresses(); |
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ArrayList<String> ipAddressList = new ArrayList<String>(); |
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for(int i = 0; i < privateIp.length; i++){ |
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if(!nodeHasAddress(privateIp[i])){
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ipAddressList.add(privateIp[i]); |
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} |
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} |
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for(int i = 0; i < publicIp.length; i++){ |
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if(!nodeHasAddress(publicIp[i])){
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ipAddressList.add(publicIp[i]); |
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} |
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} |
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final String[] ipAddresses = ipAddressList.toArray(new String[ipAddressList.size()]); |
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final int pos = position; |
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CheckBox add = (CheckBox) row.findViewById(R.id.add_node_checkbox); |
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add.setOnCheckedChangeListener(new OnCheckedChangeListener() {
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { |
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if(isChecked){
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lastCheckedPos = pos; |
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Intent viewIntent = new Intent(context, AddNodeActivity.class);
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viewIntent.putExtra("ipAddresses", ipAddresses);
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startActivityForResult(viewIntent, ADD_NODE_CODE); |
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} |
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else{
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removeNodeFromList(server); |
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} |
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} |
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}); |
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return(row);
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} |
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} |
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/*
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* need to remove by id because that is
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* what is unique
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*/
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private void removeNodeFromList(Server server){ |
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for(int i = 0; i < nodes.size(); i++){ |
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Node node = nodes.get(i); |
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if(serverHasIp(server, node.getAddress())){
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nodes.remove(i); |
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break;
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} |
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} |
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} |
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private boolean serverHasIp(Server server, String address){ |
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String[] addresses = server.getPrivateIpAddresses(); |
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for(int i = 0; i < addresses.length; i++){ |
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if(addresses[i].equals(address)){
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return true; |
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} |
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} |
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addresses = server.getPublicIpAddresses(); |
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for(int i = 0; i < addresses.length; i++){ |
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if(addresses[i].equals(address)){
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return true; |
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} |
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} |
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return false; |
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} |
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private void startLoadBalancerError(String message, HttpBundle bundle){ |
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Intent viewIntent = new Intent(getApplicationContext(), ServerErrorActivity.class);
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viewIntent.putExtra("errorMessage", message);
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viewIntent.putExtra("response", bundle.getResponseText());
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viewIntent.putExtra("request", bundle.getCurlRequest());
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startActivity(viewIntent); |
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} |
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//using cloudServersException, it works for us too
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private CloudServersException parseCloudServersException(HttpResponse response) {
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CloudServersException cse = new CloudServersException();
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try {
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BasicResponseHandler responseHandler = new BasicResponseHandler();
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String body = responseHandler.handleResponse(response);
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CloudServersFaultXMLParser parser = new CloudServersFaultXMLParser();
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SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser(); |
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XMLReader xmlReader = saxParser.getXMLReader(); |
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xmlReader.setContentHandler(parser); |
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xmlReader.parse(new InputSource(new StringReader(body))); |
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cse = parser.getException(); |
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} catch (ClientProtocolException e) {
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cse = new CloudServersException();
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cse.setMessage(e.getLocalizedMessage()); |
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} catch (IOException e) { |
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cse = new CloudServersException();
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cse.setMessage(e.getLocalizedMessage()); |
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} catch (ParserConfigurationException e) { |
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cse = new CloudServersException();
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cse.setMessage(e.getLocalizedMessage()); |
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} catch (SAXException e) {
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cse = new CloudServersException();
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cse.setMessage(e.getLocalizedMessage()); |
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} catch (FactoryConfigurationError e) { |
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cse = new CloudServersException();
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cse.setMessage(e.getLocalizedMessage()); |
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} |
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return cse;
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} |
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private class AddNodesTask extends AsyncTask<Void, Void, HttpBundle> { |
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private CloudServersException exception;
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protected void onPreExecute(){ |
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showDialog(); |
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} |
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@Override
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protected HttpBundle doInBackground(Void... arg0) { |
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HttpBundle bundle = null;
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try {
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bundle = (new LoadBalancerManager(context)).addNodes(loadBalancer, nodesToAdd);
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} catch (CloudServersException e) {
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exception = e; |
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} |
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return bundle;
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} |
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@Override
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protected void onPostExecute(HttpBundle bundle) { |
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pDialog.dismiss(); |
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HttpResponse response = bundle.getResponse(); |
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if (response != null) { |
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int statusCode = response.getStatusLine().getStatusCode();
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if (statusCode == 202) { |
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setResult(Activity.RESULT_OK); |
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finish(); |
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} else {
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CloudServersException cse = parseCloudServersException(response); |
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if ("".equals(cse.getMessage())) { |
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startLoadBalancerError("There was a problem creating your load balancer.", bundle);
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} else {
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//if container with same name already exists
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startLoadBalancerError("There was a problem creating your load balancer: " + cse.getMessage() + "\n See details for more information", bundle); |
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} |
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} |
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} else if (exception != null) { |
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startLoadBalancerError("There was a problem creating your container: " + exception.getMessage()+"\n See details for more information.", bundle); |
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} |
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finish(); |
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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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showDialog(); |
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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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pDialog.dismiss(); |
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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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protected void onActivityResult(int requestCode, int resultCode, Intent data){ |
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int pos = lastCheckedPos;
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if(requestCode == ADD_NODE_CODE && resultCode == RESULT_OK){
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Node node = new Node();
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node.setAddress(data.getStringExtra("nodeIp"));
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node.setCondition(data.getStringExtra("nodeCondition"));
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node.setName(servers[pos].getName()); |
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node.setPort(data.getStringExtra("nodePort"));
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Log.d("info", "nodesToAdd is null? " + Boolean.toString(nodesToAdd == null)); |
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nodesToAdd.add(node); |
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} |
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else if(requestCode == ADD_NODE_CODE && resultCode == RESULT_CANCELED){ |
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//uncheck the node at lastCheckedPos
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LinearLayout linear = (LinearLayout) findViewById(R.id.nodes_linear_layout); |
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ListView serversList = (ListView) linear.findViewById(android.R.id.list); |
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View row = serversList.getChildAt(pos);
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CheckBox checkBox = (CheckBox)row.findViewById(R.id.add_node_checkbox); |
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checkBox.setChecked(false);
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} |
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} |
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} |