root / src / com / rackspacecloud / android / AddLoadBalancerActivity.java @ c2b54e85
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package com.rackspacecloud.android; |
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import java.util.ArrayList; |
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import org.apache.http.HttpResponse; |
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import com.rackspace.cloud.loadbalancer.api.client.Algorithm; |
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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.loadbalancer.api.client.Protocol; |
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import com.rackspace.cloud.loadbalancer.api.client.VirtualIp; |
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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.http.HttpBundle; |
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import android.app.Activity; |
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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.text.Editable; |
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import android.text.TextWatcher; |
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import android.util.Log; |
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import android.view.View; |
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import android.view.View.OnClickListener; |
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import android.widget.AdapterView; |
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import android.widget.AdapterView.OnItemSelectedListener; |
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import android.widget.ArrayAdapter; |
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import android.widget.Button; |
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import android.widget.EditText; |
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import android.widget.Spinner; |
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import android.widget.TableRow;; |
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public class AddLoadBalancerActivity extends CloudActivity implements OnItemSelectedListener { |
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private static final String[] VIP_TYPES = {"Public", "ServiceNet", "Shared"}; |
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private static final int ADD_NODES_ACTIVITY_CODE = 165; |
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private static final int SHARED_VIP_ACTIVITY_CODE = 235; |
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private ArrayList<Node> nodes; |
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private ArrayList<Server> possibleNodes; |
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private LoadBalancer loadBalancer;
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private Protocol[] protocols; |
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private Protocol selectedProtocol;
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private Algorithm[] algorithms; |
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private Algorithm selectedAlgorithm;
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private VirtualIp selectedVip;
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private EditText portEditText;
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private Spinner protocolSpinner;
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private Spinner protocolSubSpinner;
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private Spinner algorithmSpinner;
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private Spinner vipSpinner;
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private Spinner regionSpinner;
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private Button selectVipButton; |
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private Button selectNodesButton; |
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private String selectedVipType; |
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private String selectedRegion; |
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private String selectedName; |
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private String selectedPort; |
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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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trackPageView(GoogleAnalytics.PAGE_ADD_LOADBALANCER); |
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setContentView(R.layout.view_add_loadbalancer); |
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restoreState(savedInstanceState); |
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} |
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@SuppressWarnings("unchecked") |
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protected void restoreState(Bundle state) { |
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super.restoreState(state);
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if(state != null && state.containsKey("nodes")){ |
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nodes = (ArrayList<Node>) state.getSerializable("nodes"); |
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} |
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else{
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nodes = new ArrayList<Node>(); |
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} |
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if(state != null && state.containsKey("possibleNodes")){ |
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possibleNodes = (ArrayList<Server>) state.getSerializable("possibleNodes"); |
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} |
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else{
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possibleNodes = new ArrayList<Server>(); |
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} |
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if(state != null && state.containsKey("selectedVip")){ |
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selectedVip = (VirtualIp) state.getSerializable("selectedVip");
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} |
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setupText(); |
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loadProtocolSpinner(); |
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loadProtocolSubSpinner(); |
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loadAlgorithmSpinner(); |
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loadVipSpinner(); |
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loadRegionSpinner(); |
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setUpButtons(); |
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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("possibleNodes", possibleNodes);
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outState.putSerializable("selectedVip", selectedVip);
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} |
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { |
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if (parent == protocolSpinner) {
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TableRow customProtocol = (TableRow)findViewById(R.id.custom_protocol_row); |
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if(position < protocols.length){
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selectedProtocol = protocols[position]; |
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selectedPort = protocols[position].getDefaultPort(); |
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customProtocol.setVisibility(View.GONE);
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} else {
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customProtocol.setVisibility(View.VISIBLE);
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} |
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updateVipIndicatorLight(); |
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} else if (parent == algorithmSpinner){ |
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selectedAlgorithm = algorithms[position]; |
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} else if (parent == vipSpinner){ |
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selectedVipType = VIP_TYPES[position]; |
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if(VIP_TYPES[position].equals("Shared")){ |
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((TableRow) findViewById(R.id.select_vip_layout)).setVisibility(View.VISIBLE);
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} else {
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((TableRow) findViewById(R.id.select_vip_layout)).setVisibility(View.GONE);
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} |
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updateVipIndicatorLight(); |
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} else if (parent == regionSpinner){ |
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selectedRegion = Account.getAccount().getLoadBalancerRegions()[position]; |
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updateVipIndicatorLight(); |
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} else if (parent == protocolSubSpinner){ |
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selectedProtocol = protocols[position]; |
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updateVipIndicatorLight(); |
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} |
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} |
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public void onNothingSelected(AdapterView<?> parent) { |
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} |
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private void setUpButtons(){ |
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selectVipButton = (Button) findViewById(R.id.selected_shared_vip);
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updateVipIndicatorLight(); |
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selectVipButton.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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Intent viewIntent = new Intent(getApplicationContext(), SharedVipActivity.class);
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viewIntent.putExtra("loadBalancerPort", selectedPort);
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viewIntent.putExtra("loadBalancerRegion", selectedRegion);
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viewIntent.putExtra("selectedVip", selectedVip);
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startActivityForResult(viewIntent, SHARED_VIP_ACTIVITY_CODE); |
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} |
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}); |
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((TableRow) findViewById(R.id.select_vip_layout)).setVisibility(View.GONE);
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selectNodesButton = (Button) findViewById(R.id.add_nodes_button);
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updateNodesIndicatorLight(); |
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selectNodesButton.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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Intent viewIntent = new Intent(getApplicationContext(), AddNodesActivity.class);
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viewIntent.putExtra("nodes", nodes);
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if(validPort(selectedPort)){
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viewIntent.putExtra("loadBalancerPort", selectedPort);
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} |
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viewIntent.putExtra("possibleNodes", possibleNodes);
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startActivityForResult(viewIntent, ADD_NODES_ACTIVITY_CODE); |
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} |
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}); |
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Button addLoadBalancer = (Button) findViewById(R.id.add_lb_button); |
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addLoadBalancer.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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selectedName = ((EditText)findViewById(R.id.edit_lb_name_text)).getText().toString(); |
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//selectedPort = ((EditText)findViewById(R.id.edit_port_text)).getText().toString();
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if(!validName()){
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showAlert("Error", "Load balancer name cannot be blank."); |
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} else if(!validPort(selectedPort)){ |
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showAlert("Error", "Must have a protocol port number that is between 1 and 65535."); |
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} else if(!validVip()){ |
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showAlert("Error", "Please select a valid Virtual IP."); |
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} else if(!validNodes()){ |
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showAlert("Error", "You must select at least one enabled cloud server or add and enable at least one external node."); |
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} else {
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loadBalancer = new LoadBalancer();
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loadBalancer.setName(selectedName); |
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loadBalancer.setProtocol(selectedProtocol.getName()); |
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loadBalancer.setPort(selectedPort); |
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loadBalancer.setVirtualIpType(selectedVipType); |
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loadBalancer.setAlgorithm(selectedAlgorithm.getName()); |
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loadBalancer.setRegion(selectedRegion); |
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loadBalancer.setNodes(nodes); |
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if(selectedVip != null){ |
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ArrayList<VirtualIp> vips = new ArrayList<VirtualIp>(); |
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vips.add(selectedVip); |
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loadBalancer.setVirtualIps(vips); |
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} |
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trackEvent(GoogleAnalytics.CATEGORY_LOAD_BALANCER, GoogleAnalytics.EVENT_CREATE, "", -1); |
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new AddLoadBalancerTask().execute();
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Log.d("info", "the port is " + selectedPort); |
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} |
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} |
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}); |
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} |
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private boolean validName(){ |
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return !selectedName.equals(""); |
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} |
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private boolean validPort(String selectedPort){ |
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boolean result;
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try{
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result = !selectedPort.equals("") && Integer.valueOf(selectedPort) > 0 && Integer.valueOf(selectedPort) < 65536; |
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} catch (NumberFormatException e){ |
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result = false;
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} |
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return result;
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} |
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private boolean validNodes(){ |
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boolean exist = nodes != null && nodes.size() > 0; |
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boolean enabled = false; |
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for(Node n: nodes){
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enabled = enabled || n.getCondition().equalsIgnoreCase("enabled");
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} |
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return exist && enabled;
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} |
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private boolean validVip(){ |
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/*
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* assign selectedVipType to the
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* first value in the list, the default
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* if its null
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*/
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if(selectedVipType == null){ |
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selectedVipType = VIP_TYPES[0];
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} |
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return !selectedVipType.equalsIgnoreCase("Shared") |
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||(selectedVip != null && !selectedVip.getLoadBalancer().getPort().equals(selectedPort)
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&& selectedVip.getLoadBalancer().getRegion().equals(selectedRegion)); |
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} |
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private void updateNodesIndicatorLight(){ |
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if(validNodes()){
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selectNodesButton.setCompoundDrawablesWithIntrinsicBounds(0,0,0,0); |
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} else {
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selectNodesButton.setCompoundDrawablesWithIntrinsicBounds(0,0,R.drawable.ic_notification_overlay,0); |
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} |
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} |
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private void updateVipIndicatorLight(){ |
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if(validVip()){
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selectVipButton.setCompoundDrawablesWithIntrinsicBounds(0,0,0,0); |
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} else {
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selectVipButton.setCompoundDrawablesWithIntrinsicBounds(0,0,R.drawable.ic_notification_overlay,0); |
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} |
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} |
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private void setupText(){ |
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portEditText = (EditText)findViewById(R.id.edit_port_text); |
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portEditText.addTextChangedListener(new TextWatcher() {
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) { |
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selectedPort = s.toString(); |
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updateVipIndicatorLight(); |
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} |
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, |
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int after) {
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// do nothing
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} |
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@Override
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public void afterTextChanged(Editable s) { |
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// do nothing
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} |
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}); |
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} |
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private void loadRegionSpinner() { |
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regionSpinner = (Spinner) findViewById(R.id.edit_region_spinner); |
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regionSpinner.setOnItemSelectedListener(this);
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ArrayAdapter<String> regionAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, |
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Account.getAccount().getLoadBalancerRegions()); |
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regionAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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regionSpinner.setAdapter(regionAdapter); |
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} |
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private void loadVipSpinner() { |
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vipSpinner = (Spinner) findViewById(R.id.edit_vip_spinner); |
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vipSpinner.setOnItemSelectedListener(this);
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ArrayAdapter<String> vipAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, VIP_TYPES); |
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vipAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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vipSpinner.setAdapter(vipAdapter); |
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} |
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private void loadProtocolSpinner() { |
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protocolSpinner = (Spinner) findViewById(R.id.edit_protocol_spinner); |
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protocolSpinner.setOnItemSelectedListener(this);
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String protocolNames[] = new String[Protocol.getProtocols().size() + 1]; |
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protocols = new Protocol[Protocol.getProtocols().size()];
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int httpIndex = 0; |
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for(int i = 0; i < Protocol.getProtocols().size(); i++){ |
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protocols[i] = Protocol.getProtocols().get(i); |
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protocolNames[i] = Protocol.getProtocols().get(i).getName() + " (" + Protocol.getProtocols().get(i).getDefaultPort() + ")"; |
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if(Protocol.getProtocols().get(i).getName().equals("HTTP")){ |
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httpIndex = i; |
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} |
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} |
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protocolNames[protocolNames.length - 1] = "Custom"; |
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ArrayAdapter<String> protocolAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, protocolNames); |
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protocolAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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protocolSpinner.setAdapter(protocolAdapter); |
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protocolSpinner.setSelection(httpIndex); |
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} |
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/*
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* this is the spinner for protocol selection that
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* appears if custom is chosen from protocolSpinner
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*/
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private void loadProtocolSubSpinner() { |
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protocolSubSpinner = (Spinner) findViewById(R.id.edit_protocol_sub_spinner); |
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protocolSubSpinner.setOnItemSelectedListener(this);
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String protocolNames[] = new String[Protocol.getProtocols().size()]; |
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for(int i = 0; i < Protocol.getProtocols().size(); i++){ |
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protocolNames[i] = Protocol.getProtocols().get(i).getName(); |
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} |
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ArrayAdapter<String> protocolAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, protocolNames); |
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protocolAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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protocolSubSpinner.setAdapter(protocolAdapter); |
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} |
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private void loadAlgorithmSpinner() { |
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algorithmSpinner = (Spinner) findViewById(R.id.edit_algorithm_spinner); |
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algorithmSpinner.setOnItemSelectedListener(this);
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String algorithmNames[] = new String[Algorithm.getAlgorithms().size()]; |
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algorithms = new Algorithm[Algorithm.getAlgorithms().size()];
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for(int i = 0; i < Algorithm.getAlgorithms().size(); i++){ |
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algorithms[i] = Algorithm.getAlgorithms().get(i); |
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algorithmNames[i] = getPrettyAlgoName(Algorithm.getAlgorithms().get(i).getName()); |
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} |
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ArrayAdapter<String> algorithmAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, algorithmNames); |
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algorithmAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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algorithmSpinner.setAdapter(algorithmAdapter); |
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} |
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private String getPrettyAlgoName(String name){ |
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if(name == null || name.length() == 0){ |
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return ""; |
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} else {
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String result = name.charAt(0) + ""; |
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boolean previousWasSpace = false;; |
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for(int i = 1; i < name.length(); i++){ |
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char curLetter = name.charAt(i);
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if(curLetter == '_'){ |
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result += " ";
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previousWasSpace = true;
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} else {
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if(previousWasSpace){
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result += Character.toUpperCase(curLetter);
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} else {
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result += Character.toLowerCase(curLetter);
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} |
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previousWasSpace = false;
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} |
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} |
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return result;
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} |
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} |
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|
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private class AddLoadBalancerTask 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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|
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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(getContext())).create(loadBalancer, LoadBalancer.getRegionUrl(selectedRegion));
|
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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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|
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@Override
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protected void onPostExecute(HttpBundle bundle) { |
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hideDialog(); |
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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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showError("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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showError("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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showError("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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|
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private void printNodes(ArrayList<Node> nodes){ |
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for(Node n : nodes){
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Log.d("info", "node is: " + n.getAddress()); |
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} |
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} |
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|
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@SuppressWarnings("unchecked") |
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@Override
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protected void onActivityResult (int requestCode, int resultCode, Intent data){ |
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if(requestCode == ADD_NODES_ACTIVITY_CODE && resultCode == RESULT_OK){
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//set node list
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nodes = ((ArrayList<Node>)data.getSerializableExtra("nodes")); |
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updateNodesIndicatorLight(); |
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printNodes(nodes); |
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} |
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else if(requestCode == ADD_NODES_ACTIVITY_CODE && resultCode == RESULT_CANCELED){ |
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//don't change list
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} |
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else if(requestCode == SHARED_VIP_ACTIVITY_CODE){ |
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if(data != null){ |
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selectedVip = (VirtualIp)data.getSerializableExtra("selectedVip");
|
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} |
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updateVipIndicatorLight(); |
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} |
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} |
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} |