org.idwebmail.client.IDRequest.java Source code

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Here is the source code for org.idwebmail.client.IDRequest.java

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package org.idwebmail.client;

import com.google.gwt.core.client.Callback;
import com.google.gwt.http.client.Header;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.user.client.Window;

/**
 *
 * @author merma158 <jurbano@innodite.com en Innodite, C.A.>
 */
public class IDRequest extends MainEntryPoint {

    private String url = "";
    private Request request = null;
    private String data = "";
    private final int timeoutMillis = 300000;
    private RequestBuilder requestBuilder = null;
    private static String rs = ".";
    //private String dataUsr = "";
    //private String Msg = null;

    public IDRequest(IDFunction function) {
        this.preparar(MainEntryPoint.getURL(), function);
    }

    public IDRequest(String url, IDFunction function) {
        this.preparar(url, function);
    }

    private void preparar(String url, final IDFunction usrFunction) {
        this.url = url;
        final IDFunction function = new IDFunction() {
            @Override
            public void execute(Response response) {
                try {
                    JSONObject JSON = (JSONObject) JSONParser.parse(response.getText());
                    usrFunction.execute(response);
                } catch (Exception e) {
                    usrFunction.execute(response);
                }
            };
        };
        this.requestBuilder = new RequestBuilder(RequestBuilder.POST, url);
        this.requestBuilder.setHeader("Content-Type", "application/x-www-form-urlencoded");
        this.requestBuilder.setTimeoutMillis(this.timeoutMillis);
        this.requestBuilder.setCallback(new RequestCallback() {
            @Override
            public void onResponseReceived(com.google.gwt.http.client.Request request, final Response response) {
                if (response.getStatusCode() == Response.SC_OK) {
                    JSONObject JSON = null;
                    try {
                        JSON = (JSONObject) JSONParser.parse(response.getText());
                        if (MainEntryPoint.getBoolean(JSON.get("STDOUT"))) {
                            final String JSONRespuesta = MainEntryPoint.getString(JSON.get("data"));
                            final Response tmp = new Response() {
                                @Override
                                public String getHeader(String arg0) {
                                    return response.getHeader(arg0);
                                }

                                @Override
                                public Header[] getHeaders() {
                                    return response.getHeaders();
                                }

                                @Override
                                public String getHeadersAsString() {
                                    return response.getHeadersAsString();
                                }

                                @Override
                                public int getStatusCode() {
                                    return response.getStatusCode();
                                }

                                @Override
                                public String getStatusText() {
                                    return response.getStatusText();
                                }

                                @Override
                                public String getText() {
                                    return JSONRespuesta;
                                }
                            };
                            function.execute(tmp);
                        } else
                            JSON = null;
                    } catch (Exception e) {
                        function.execute(response);
                    }
                }
            }

            @Override
            public void onError(Request request, Throwable exception) {
                Window.alert("Error: " + exception.getMessage());
            }
        });
    }

    /** 
     * @param name
     * @param value
     */
    public void addParam(String name, String value) {
        this.data = this.data + name + "=" + value + "&";
    }

    public boolean send() {
        try {
            this.requestBuilder.setRequestData(this.data);
            this.request = this.requestBuilder.send();
        } catch (RequestException e) {
            return false;
        }
        return true;
    }

    public void cancelar() {
        if (this.request != null)
            this.request.cancel();
    }

    public static String getAjaxData(String param) {
        final String result = "-";
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, MainEntryPoint.getURL());
        builder.setRequestData(param);
        //final SynchronousQueue resultQueue = new SynchronousQueue();
        try {
            builder.sendRequest(null, new RequestCallback() {
                @Override
                public void onResponseReceived(Request request, Response response) {
                    JSONObject json = (JSONObject) JSONParser.parse(response.getText());
                    if (MainEntryPoint.getString(json.get("data")).toLowerCase().compareTo("exito") == 0) {
                        rs = MainEntryPoint.getString(json.get("modo"));
                    }
                }

                @Override
                public void onError(Request request, Throwable exception) {
                }
            });
            return rs;
        } catch (RequestException ex) {
        }
        return result;
    }

    public static void getAjaxData(String param, final String campo, final Callback<String, String> callback) {
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, MainEntryPoint.getURL());
        builder.setHeader("Content-Type", "application/x-www-form-urlencoded");
        builder.setRequestData(param);
        try {
            builder.sendRequest(param, new RequestCallback() {
                @Override
                public void onResponseReceived(Request request, Response response) {
                    JSONObject json = (JSONObject) JSONParser.parse(response.getText());
                    if (campo.isEmpty())
                        callback.onSuccess(response.getText());
                    else
                        callback.onSuccess(MainEntryPoint.getString(json.get(campo)));
                }

                @Override
                public void onError(Request request, Throwable exception) {
                }
            });
        } catch (RequestException e) {
        }
    }
}