root / src / com / rackspacecloud / android / EditNodeActivity.java @ 5018a7f8
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package com.rackspacecloud.android; |
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import org.apache.http.HttpResponse; |
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import com.rackspace.cloud.loadbalancer.api.client.LoadBalancer; |
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import com.rackspace.cloud.loadbalancer.api.client.Node; |
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import com.rackspace.cloud.loadbalancer.api.client.NodeManager; |
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import com.rackspace.cloud.servers.api.client.CloudServersException; |
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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.app.AlertDialog; |
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import android.app.Dialog; |
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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.view.View; |
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import android.view.View.OnClickListener; |
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import android.view.Window; |
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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.TextView; |
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public class EditNodeActivity extends CloudActivity{ |
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private final String[] CONDITIONS = {"Enabled", "Disabled", "Draining"}; |
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private final int NODE_DELETED_CODE = 389; |
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private Spinner conditionSpinner;
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private EditText weightText;
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private String selectedCondition; |
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private String selectedWeight; |
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private LoadBalancer loadBalancer;
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private Node node;
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public void onCreate(Bundle savedInstanceState) { |
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super.onCreate(savedInstanceState);
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trackPageView(GoogleAnalytics.PAGE_LB_NODE); |
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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setContentView(R.layout.editnode); |
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node = (Node) this.getIntent().getExtras().get("node"); |
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loadBalancer = (LoadBalancer) this.getIntent().getExtras().get("loadBalancer"); |
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restoreState(savedInstanceState); |
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} |
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protected void restoreState(Bundle state){ |
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super.restoreState(state);
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loadData(); |
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setUpButtons(); |
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} |
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private void setUpButtons(){ |
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Button submit = (Button) findViewById(R.id.edit_node_button); |
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submit.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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selectedWeight = weightText.getText().toString(); |
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if(weightText.getVisibility() == View.GONE || (weightText.getVisibility() != View.GONE && validWeight(selectedWeight))){ |
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trackEvent(GoogleAnalytics.CATEGORY_LOAD_BALANCER, GoogleAnalytics.EVENT_UPDATED_NODE, "", -1); |
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new ModifyNodeTask().execute();
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} |
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else{
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showAlert("Error", "Weight must be between 1 and 100."); |
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} |
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} |
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}); |
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Button delete = (Button) findViewById(R.id.delete_node_button); |
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delete.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) { |
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showDialog(R.id.delete_node_button); |
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} |
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}); |
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} |
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@Override
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protected Dialog onCreateDialog(int id) { |
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switch (id) {
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case R.id.delete_node_button:
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return new AlertDialog.Builder(EditNodeActivity.this) |
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.setIcon(R.drawable.alert_dialog_icon) |
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.setTitle("Remove Node")
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.setMessage("Are you sure you want to remove this node?")
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.setPositiveButton("Remove", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int whichButton) { |
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// User clicked OK so do some stuff
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trackEvent(GoogleAnalytics.CATEGORY_LOAD_BALANCER, GoogleAnalytics.EVENT_DELETE_NODE, "", -1); |
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new DeleteNodeTask().execute((Void[]) null); |
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} |
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}) |
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.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int whichButton) { |
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// User clicked Cancel so do some stuff
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} |
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}) |
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.create(); |
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} |
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return null; |
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} |
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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 loadData(){ |
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loadConditionSpinner(); |
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TextView ipText = (TextView) findViewById(R.id.node_ip_text); |
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ipText.setText(node.getAddress()); |
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TextView portText = (TextView) findViewById(R.id.node_port_text); |
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portText.setText(node.getPort()); |
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weightText = (EditText) findViewById(R.id.node_weight_text); |
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//if algorithm is not weighted then then node's weight will be null
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if(node.getWeight() == null){ |
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TextView weightLabel = (TextView) findViewById(R.id.node_weight_label); |
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weightLabel.setVisibility(View.GONE);
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weightText.setVisibility(View.GONE);
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} |
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else{
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weightText.setText(node.getWeight()); |
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} |
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} |
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private Boolean validWeight(String weight){ |
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if(weight.equals("")){ |
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return false; |
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} |
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else{
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try{
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int w = Integer.valueOf(weight); |
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return w >= 1 && w <= 100 ; |
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} catch (NumberFormatException nfe){ |
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return false; |
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} |
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} |
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} |
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private void loadConditionSpinner(){ |
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conditionSpinner = (Spinner) findViewById(R.id.node_condition_spinner); |
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ArrayAdapter<String> conditionAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, CONDITIONS); |
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conditionAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
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conditionSpinner.setAdapter(conditionAdapter); |
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conditionSpinner.setSelection(getSpinnerLocation(node.getCondition())); |
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conditionSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { |
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selectedCondition = CONDITIONS[pos]; |
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} |
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@Override
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public void onNothingSelected(AdapterView<?> arg0) { |
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} |
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}); |
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} |
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private int getSpinnerLocation(String condition){ |
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for(int i = 0; i < CONDITIONS.length; i++){ |
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if(CONDITIONS[i].equalsIgnoreCase(condition)){
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return i;
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} |
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} |
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return 0; |
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} |
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public class ModifyNodeTask extends AsyncTask<Void, Void, HttpBundle> { |
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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 HttpBundle doInBackground(Void... arg0) { |
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HttpBundle bundle = null;
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try {
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bundle = (new NodeManager(getContext())).update(loadBalancer, node, selectedCondition, selectedWeight);
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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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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 || statusCode == 200) { |
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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 modifying your load balancer.", bundle);
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} else {
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showError("There was a problem modifying your load balancer: " + cse.getMessage(), 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 modifying your load balancer: " + exception.getMessage(), bundle);
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} |
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} |
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} |
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public class DeleteNodeTask extends AsyncTask<Void, Void, HttpBundle> { |
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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 HttpBundle doInBackground(Void... arg0) { |
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HttpBundle bundle = null;
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try {
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bundle = (new NodeManager(getContext())).remove(loadBalancer, node);
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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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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 || statusCode == 200) { |
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Intent viewIntent = new Intent();
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viewIntent.putExtra("deletedNode", node);
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setResult(NODE_DELETED_CODE, viewIntent); |
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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 modifying your load balancer.", bundle);
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} else {
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showError("There was a problem modifying your load balancer: " + cse.getMessage(), 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 modifying your load balancer: " + exception.getMessage(), bundle);
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} |
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} |
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} |
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/*
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* For testing
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*/
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@SuppressWarnings("unused") |
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private void setSelectedWeight(String s){ |
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selectedWeight = s; |
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} |
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} |