public PluginResult execute()

in src/main/java/org/apache/cordova/facebook/ConnectPlugin.java [41:190]
127 lines of code
27 McCabe index (conditional complexity)

    public PluginResult execute(String action, JSONArray args, final String callbackId) {
        PluginResult pr = new PluginResult(PluginResult.Status.NO_RESULT);
        pr.setKeepCallback(true);

        if (action.equals("init")) {
            try {
                String appId = args.getString(0);

                facebook = new Facebook(appId);

                Log.d(TAG, "init: Initializing plugin.");

                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this.ctx.getContext());
                String access_token = prefs.getString("access_token", null);
                Long expires = prefs.getLong("access_expires", -1);

                if (access_token != null && expires != -1) {
                    this.facebook.setAccessToken(access_token);
                    this.facebook.setAccessExpires(expires);
                	  try {
                        JSONObject o = new JSONObject(this.facebook.request("/me"));
                        this.userId = o.getString("id");
                    } catch (MalformedURLException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (JSONException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }

                if(facebook.isSessionValid() && this.userId != null) {
                    return new PluginResult(PluginResult.Status.OK, this.getResponse());
                }
                else {
                    return new PluginResult(PluginResult.Status.NO_RESULT);
                }
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                return new PluginResult(PluginResult.Status.ERROR, "Invalid JSON args used. expected a string as the first arg.");
            }
        }

        else if (action.equals("login")) {
            if (facebook != null) {
            	final ConnectPlugin me = this;
                String[] permissions = new String[args.length()];
                try {
                    for (int i=0; i<args.length(); i++) {
                        permissions[i] = args.getString(i);
                    }
                } catch (JSONException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                    return new PluginResult(PluginResult.Status.ERROR, "Invalid JSON args used. Expected a string array of permissions.");
                }

                this.ctx.setActivityResultCallback(this);
                this.permissions = permissions;
                this.callbackId = callbackId;
                Runnable runnable = new Runnable() {
                    public void run() {
                        me.facebook.authorize((Activity)me.ctx, me.permissions, new AuthorizeListener(me));
                    };
                };
                this.ctx.runOnUiThread(runnable);
            } else {
                pr = new PluginResult(PluginResult.Status.ERROR, "Must call init before login.");
            }
        }

        else if (action.equals("logout")) {
            if (facebook != null) {
                try {
                    facebook.logout(this.ctx.getContext());

                    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this.ctx.getContext());
                    prefs.edit().putLong("access_expires", -1).commit();
                    prefs.edit().putString("access_token", null).commit();
                } catch (MalformedURLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    pr = new PluginResult(PluginResult.Status.MALFORMED_URL_EXCEPTION, "Error logging out.");
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    pr = new PluginResult(PluginResult.Status.IO_EXCEPTION, "Error logging out.");
                }
                pr = new PluginResult(PluginResult.Status.OK, getResponse());
            } else {
                pr = new PluginResult(PluginResult.Status.ERROR, "Must call init before logout.");
            }
        }

        else if (action.equals("getLoginStatus")) {
            if (facebook != null) {
                pr = new PluginResult(PluginResult.Status.OK, getResponse());
            } else {
                pr = new PluginResult(PluginResult.Status.ERROR, "Must call init before getLoginStatus.");
            }
        }
        
        else if (action.equals("showDialog")) {
        	if (facebook != null) {
        		Bundle collect = new Bundle();
        		JSONObject params = null;
        		try {
        			params = args.getJSONObject(0);
        		} catch (JSONException e) {
        			params = new JSONObject();
        		}
        		
        		final ConnectPlugin me = this;
        		Iterator<?> iter = params.keys();
        		while (iter.hasNext()) {
        			String key = (String) iter.next();
        			if (key.equals("method")) {
        				try {
        					this.method = params.getString(key);
        				} catch (JSONException e) {
        					Log.w(TAG, "Nonstring method parameter provided to dialog");
        				}
        			} else {
        				try {
        					collect.putString(key, params.getString(key));
        				} catch (JSONException e) {
        					// Need to handle JSON parameters
        					Log.w(TAG, "Nonstring parameter provided to dialog discarded");
        				}
        			}
        		}
        		this.paramBundle =  new Bundle(collect);
        		Runnable runnable = new Runnable() {
        			public void run() {
        				me.facebook.dialog (me.ctx.getContext(), me.method , me.paramBundle , new UIDialogListener(me));
        			};
        		};
        		this.ctx.runOnUiThread(runnable);
        	} else {
        		pr = new PluginResult(PluginResult.Status.ERROR, "Must call init before showDialog.");
        	}
        	
        }

        return pr;
    }