root / src / com / rackspacecloud / android / EditLoadBalancerActivity.java @ 71e52c4a
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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.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.Protocol; |
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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.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.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.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.AdapterView.OnItemSelectedListener; |
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public class EditLoadBalancerActivity extends CloudActivity implements OnItemSelectedListener { |
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private LoadBalancer loadBalancer;
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private Protocol[] protocols; |
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private Algorithm[] algorithms; |
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private Spinner protocolSpinner;
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private Spinner algorithmSpinner;
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private String selectedProtocol; |
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private String selectedAlgorithm; |
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private String selectedPort; |
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private String selectedName; |
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private EditText name;
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private EditText portText;
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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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loadBalancer = (LoadBalancer) this.getIntent().getExtras().get("loadBalancer"); |
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setContentView(R.layout.updateloadbalancer); |
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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("loadBalancer", loadBalancer);
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outState.putString("selectedProtocol", selectedProtocol);
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outState.putString("selectedAlgorithm", selectedAlgorithm);
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outState.putString("selectedPort", selectedPort);
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outState.putString("selectedName", selectedName);
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} |
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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("loadBalancer")) { |
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loadBalancer = (LoadBalancer) state.getSerializable("loadBalancer");
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} |
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if (state != null && state.containsKey("selectedProtocol")) { |
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selectedProtocol = state.getString("selectedProtocol");
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} else {
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selectedProtocol = loadBalancer.getProtocol(); |
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} |
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if (state != null && state.containsKey("selectedAlgorithm")) { |
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selectedAlgorithm = state.getString("selectedAlgorithm");
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} else {
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selectedAlgorithm = loadBalancer.getAlgorithm(); |
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} |
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if (state != null && state.containsKey("selectedPort")) { |
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selectedPort = state.getString("selectedPort");
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} else {
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selectedPort = loadBalancer.getPort(); |
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} |
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if (state != null && state.containsKey("selectedName")) { |
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selectedName = state.getString("selectedName");
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} else {
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selectedName = loadBalancer.getName(); |
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} |
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setupInputs(); |
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} |
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private void setupInputs(){ |
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loadProtocolSpinner(); |
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loadAlgorithmSpinner(); |
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name = (EditText) findViewById(R.id.edit_lb_name_text); |
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name.setText(selectedName); |
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portText = (EditText) findViewById(R.id.edit_port_text); |
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portText.setText(selectedPort); |
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Button submit = (Button)findViewById(R.id.update_lb_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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selectedPort = portText.getText().toString(); |
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if(validPort()) {
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new UpdateLoadBalancerTask().execute();
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} else {
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showAlert("Error", "Must have a protocol port number that is between 1 and 65535."); |
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} |
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} |
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}); |
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} |
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private boolean validPort(){ |
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Log.d("info", "selectedPort is " + selectedPort); |
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try{
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return (!selectedPort.equals("")) && Integer.valueOf(selectedPort) > 0 && Integer.valueOf(selectedPort) < 65536; |
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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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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()]; |
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protocols = new Protocol[Protocol.getProtocols().size()];
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/*
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* set the spinner to the current value
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* so user doesnt have to remember
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*/
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int defaultPosition = 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(); |
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if(protocolNames[i].equals(selectedProtocol)){
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defaultPosition = i; |
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} |
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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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protocolSpinner.setAdapter(protocolAdapter); |
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protocolSpinner.setSelection(defaultPosition); |
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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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/*
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* set the spinner to the current value
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* so user doesnt have to remember
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*/
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int defaultPosition = 0; |
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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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if(algorithmNames[i].equals(getPrettyAlgoName(selectedAlgorithm))){
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defaultPosition = i; |
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} |
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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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algorithmSpinner.setSelection(defaultPosition); |
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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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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { |
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if (parent == protocolSpinner) {
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selectedProtocol = Protocol.getProtocols().get(position).getName(); |
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} |
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else if (parent == algorithmSpinner){ |
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selectedAlgorithm = algorithms[position].getName(); |
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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 class UpdateLoadBalancerTask 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 LoadBalancerManager(getContext())).update(loadBalancer, name.getText().toString(), selectedAlgorithm,
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selectedProtocol, portText.getText().toString()); |
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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){ |
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setResult(RESULT_OK); |
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finish(); |
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} |
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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 updating your load balancer.", bundle);
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} else {
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showError("There was a problem updating 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 updating 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 purposes
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*/
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@SuppressWarnings("unused") |
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private void setSelectedPort(String s){ |
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selectedPort = s; |
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} |
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@SuppressWarnings("unused") |
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private String getSelectedProtocol(){ |
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return selectedProtocol;
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} |
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@SuppressWarnings("unused") |
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private String getSelectedAlgorithm(){ |
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return selectedAlgorithm;
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} |
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} |