Example usage for com.google.gwt.http.client RequestCallback RequestCallback

List of usage examples for com.google.gwt.http.client RequestCallback RequestCallback

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Introduction

In this page you can find the example usage for com.google.gwt.http.client RequestCallback RequestCallback.

Prototype

RequestCallback

Source Link

Usage

From source file:anzsoft.xmpp4gwt.client.Bosh2Connector.java

License:Open Source License

public Bosh2Connector(final User user) {
    this.setUser(user);
    standardHandler = new RequestCallback() {

        public void onError(Request request, Throwable exception) {
            final String lastSendedBody = activeRequests.remove(request);
            if (exception instanceof RequestTimeoutException) {
                GWT.log("Request too old. Trying again.", null);
                DeferredCommand.addCommand(new Command() {
                    public void execute() {
                        if (lastSendedBody != null && state == State.connected && sid != null
                                && sid.length() > 0)
                            send(lastSendedBody, standardHandler);
                        else
                            continuousConnection(null);
                    }// w  w w.j a v a 2s .com
                });
            } else if (exception.getMessage().startsWith("Unable to read XmlHttpRequest.status;")) {
                GWT.log("Lost request. Ignored. Resend.", null);
                if (lastSendedBody != null) {
                    DeferredCommand.addCommand(new Command() {
                        public void execute() {
                            if (state == State.connected && sid != null && sid.length() > 0) {
                                send(lastSendedBody, standardHandler);
                            }
                        }
                    });
                }
            } else {
                state = State.disconnected;
                GWT.log("Connection error", exception);
                exception.printStackTrace();
                fireEventError(BoshErrorCondition.remote_connection_failed, null,
                        "Response error: " + exception.getMessage());
            }
        }

        public void onResponseReceived(Request request, Response response) {
            if (state == State.disconnected)
                return;

            final String httpResponse = response.getText();
            final int httpStatusCode = response.getStatusCode();
            final String lastSendedBody = activeRequests.remove(request);

            System.out.println(" IN (" + httpStatusCode + "): " + httpResponse);
            fireOnBodyReceive(response, httpResponse);

            final Packet body = parse2(response.getText().replaceAll(";", ";"));

            final String type = body == null ? null : body.getAtribute("type");
            final String receivedSid = body == null ? null : body.getAtribute("sid");
            String $tmp = body == null ? null : body.getAtribute("rid");
            //final Long rid = $tmp == null ? null : Long.valueOf($tmp);
            final String ack = body == null ? null : body.getAtribute("ack");
            $tmp = body == null ? null : body.getAtribute("condition");
            if ($tmp != null)
                $tmp = $tmp.replace("-", "_");
            final BoshErrorCondition boshCondition = $tmp == null ? null : BoshErrorCondition.valueOf($tmp);

            final String wait = body == null ? null : body.getAtribute("wait");
            final String inactivity = body == null ? null : body.getAtribute("inactivity");
            if (wait != null && inactivity != null) {
                try {
                    int w = Integer.parseInt(wait);
                    int i = Integer.parseInt(inactivity);
                    int t = (w + i / 2) * 1000;
                    builder.setTimeoutMillis(t);
                    GWT.log("New timeout: " + t + "ms", null);
                } catch (Exception e) {
                    GWT.log("Error in wait and inactivity attributes", e);
                }
            }

            if (httpStatusCode != 200 || body == null
                    || type != null && ("terminate".equals(type) || "error".equals(type))) {
                GWT.log("ERROR (" + httpStatusCode + "): " + httpResponse, null);
                ErrorCondition condition = body == null ? ErrorCondition.bad_request
                        : ErrorCondition.undefined_condition;
                String msg = null;
                Packet error = body == null ? null : body.getFirstChild("error");
                if (error != null) {
                    for (Packet c : error.getChildren()) {
                        String xmlns = c.getAtribute("xmlns");
                        if ("text".equals(c.getName())) {
                            msg = c.getCData();
                            break;
                        } else if (xmlns != null && "urn:ietf:params:xml:ns:xmpp-stanzas".equals(xmlns)) {
                            condition = getCondition(c.getName(), httpStatusCode);
                        }
                    }
                }

                if (condition == ErrorCondition.item_not_found) {
                    state = State.disconnected;
                    fireEventError(boshCondition, condition, msg);
                } else if (errorCounter < MAX_ERRORS) {
                    errorCounter++;
                    send(lastSendedBody, standardHandler);
                } else if (type != null && "terminate".equals(type)) {
                    GWT.log("Disconnected by server", null);
                    state = State.disconnected;
                    fireDisconnectByServer(boshCondition, condition, msg);
                } else {
                    state = State.disconnected;
                    if (msg == null) {
                        msg = "[" + httpStatusCode + "] " + condition.name().replace('_', '-');
                    }
                    fireEventError(boshCondition, condition, msg);
                }
            } else {
                errorCounter = 0;
                if (receivedSid != null && sid != null && !receivedSid.equals(sid)) {
                    state = State.disconnected;
                    fireEventError(BoshErrorCondition.policy_violation, ErrorCondition.unexpected_request,
                            "Unexpected session initialisation.");
                } else if (receivedSid != null && sid == null) {
                    sid = receivedSid;
                    Cookies.setCookie(user.getResource() + "sid", sid, null, null, "/", false);
                    state = State.connected;
                }

                final List<? extends Packet> children = body.getChildren();
                if (children.size() > 0) {
                    fireEventReceiveStanzas(children);
                }
                continuousConnection(ack);
            }
            System.out.println("............sid value is:" + sid);
        }
    };

    //added by zhongfanglin@antapp.com
    scriptHandler = new ScriptSyntaxRequestCallback() {
        public void onError(String callbackID) {
            state = State.disconnected;
            GWT.log("Connection error", null);
            fireEventError(BoshErrorCondition.remote_connection_failed, null,
                    "Response error: request timeout or 404!");
        }

        public void onResponseReceived(String callbackID, String responseText) {

            if (state == State.disconnected)
                return;

            final String httpResponse = responseText;
            final String lastSendedBody = activeScriptRequests.remove(callbackID);

            System.out.println(" IN:" + httpResponse);
            fireOnBodyReceive(null, httpResponse);

            final Packet body = parse2(responseText.replaceAll("&semi;", ";"));

            final String type = body == null ? null : body.getAtribute("type");
            final String receivedSid = body == null ? null : body.getAtribute("sid");
            String $tmp = body == null ? null : body.getAtribute("rid");
            //final Long rid = $tmp == null ? null : Long.valueOf($tmp);
            final String ack = body == null ? null : body.getAtribute("ack");
            $tmp = body == null ? null : body.getAtribute("condition");
            if ($tmp != null)
                $tmp = $tmp.replace("-", "_");
            final BoshErrorCondition boshCondition = $tmp == null ? null : BoshErrorCondition.valueOf($tmp);

            final String wait = body == null ? null : body.getAtribute("wait");
            final String inactivity = body == null ? null : body.getAtribute("inactivity");
            if (wait != null && inactivity != null) {
                try {
                    int w = Integer.parseInt(wait);
                    int i = Integer.parseInt(inactivity);
                    int t = (w + i / 2) * 1000;
                    scriptBuilder.setTimeoutMillis(t);
                    GWT.log("New timeout: " + t + "ms", null);
                } catch (Exception e) {
                    GWT.log("Error in wait and inactivity attributes", e);
                }
            }

            if (body == null || type != null && ("terminate".equals(type) || "error".equals(type))) {
                GWT.log("ERROR : " + httpResponse, null);
                ErrorCondition condition = body == null ? ErrorCondition.bad_request
                        : ErrorCondition.undefined_condition;
                String msg = null;
                Packet error = body == null ? null : body.getFirstChild("error");
                if (error != null) {
                    for (Packet c : error.getChildren()) {
                        String xmlns = c.getAtribute("xmlns");
                        if ("text".equals(c.getName())) {
                            msg = c.getCData();
                            break;
                        } else if (xmlns != null && "urn:ietf:params:xml:ns:xmpp-stanzas".equals(xmlns)) {
                            condition = getCondition(c.getName(), -1);
                        }
                    }
                }

                if (condition == ErrorCondition.item_not_found) {
                    state = State.disconnected;
                    fireEventError(boshCondition, condition, msg);
                } else if (errorCounter < MAX_ERRORS) {
                    errorCounter++;
                    send(lastSendedBody, scriptHandler);
                } else if (type != null && "terminate".equals(type)) {
                    GWT.log("Disconnected by server", null);
                    state = State.disconnected;
                    fireDisconnectByServer(boshCondition, condition, msg);
                } else {
                    state = State.disconnected;
                    if (msg == null) {
                        msg = condition.name().replace('_', '-');
                    }
                    fireEventError(boshCondition, condition, msg);
                }
            } else {
                errorCounter = 0;
                if (receivedSid != null && sid != null && !receivedSid.equals(sid)) {
                    state = State.disconnected;
                    fireEventError(BoshErrorCondition.policy_violation, ErrorCondition.unexpected_request,
                            "Unexpected session initialisation.");
                } else if (receivedSid != null && sid == null) {
                    sid = receivedSid;
                    Cookies.setCookie(user.getResource() + "sid", sid, null, null, "/", false);
                    state = State.connected;
                }

                List<? extends Packet> children = body.getChildren();
                if (children.size() > 0) {
                    fireEventReceiveStanzas(children);
                }
                continuousConnection(ack);
            }
        }

    };
    //end added 
}

From source file:br.com.pegasus.solutions.smartgwt.lib.client.view.impl.advanced.bar.infra.ExporterData.java

License:Apache License

private static void processRequest(String params) {
    try {/*from   ww w  . j  a va  2 s .  c  om*/
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST,
                GWT.getModuleBaseURL() + "ExportServlet");
        requestBuilder.setHeader("Content-type", "application/x-www-form-urlencoded");

        requestBuilder.sendRequest(params, new RequestCallback() {
            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    ExporterData.callExportServlet
                            .fireEvent(new ClickEvent(ExporterData.callExportServlet.getJsObj()));
                } else {
                    MessageUtil
                            .showError("An Error occurred response status code: " + response.getStatusCode());
                }
            }

            public void onError(Request request, Throwable exception) {
                MessageUtil.showError(exception.getMessage());
            }
        });
    } catch (RequestException e) {
        MessageUtil.showError(e.getMessage());
    }
}

From source file:br.com.pegasus.solutions.smartgwt.lib.client.view.impl.util.HttpRequestUtil.java

License:Apache License

/**
 * do request// w w  w. j  a va  2  s  .  c  o m
 * 
 * @param servletName {@link String}
 * @param params {@link String}
 * @param iRequestBuilderSucessAction {@link IRequestBuilderFailedAction}
 * @param iFailedAction {@link IRequestBuilderFailedAction}
 * @throws RequestException
 * @return void
 */
private static void doRequest(final IRequestBuilderSucessAction iRequestBuilderSucessAction,
        final IRequestBuilderFailedAction iFailedAction, String url, String params,
        RequestBuilder.Method method) throws RequestException {

    RequestBuilder requestBuilder = new RequestBuilder(method, url);
    requestBuilder.setHeader("Content-type", "application/x-www-form-urlencoded");
    requestBuilder.sendRequest(params, new RequestCallback() {
        public void onResponseReceived(Request request, Response response) {
            if (200 == response.getStatusCode() && iRequestBuilderSucessAction != null) {
                iRequestBuilderSucessAction.executeAction(request, response);
            }
        }

        public void onError(Request request, Throwable exception) {
            if (iFailedAction != null) {
                iFailedAction.executeAction(request, exception);
            } else {
                MessageUtil.showError(exception.getMessage());
            }
        }
    });
}

From source file:bufferings.ktr.wjr.client.service.KtrWjrJsonServiceAsync.java

License:Apache License

/**
 * {@inheritDoc}/*from   www.  j a  v a  2  s  .  com*/
 */
public void loadConfig(String configId, final AsyncCallback<WjrConfig> callback) {
    final List<Pair> params = new ArrayList<Pair>();
    params.add(new Pair(KEY_METHOD, METHOD_LOAD_CONFIG));
    params.add(new Pair(KEY_CONFIG_ID, configId));
    try {
        sendRequest(params, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                callback.onFailure(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                try {
                    callback.onSuccess(createWjrConfigFromJson(response.getText()));
                } catch (Exception e) {
                    callback.onFailure(e);
                }
            }
        });
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

From source file:bufferings.ktr.wjr.client.service.KtrWjrJsonServiceAsync.java

License:Apache License

/**
 * {@inheritDoc}/*w ww  .jav a 2  s.  c  o m*/
 */
public void loadStore(final AsyncCallback<WjrStore> callback) {
    final List<Pair> params = new ArrayList<Pair>();
    params.add(new Pair(KEY_METHOD, METHOD_LOAD_STORE));
    try {
        sendRequest(params, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                callback.onFailure(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                try {
                    callback.onSuccess(createWjrStoreFromJson(response.getText()));
                } catch (Exception e) {
                    callback.onFailure(e);
                }
            }
        });
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

From source file:bufferings.ktr.wjr.client.service.KtrWjrJsonServiceAsync.java

License:Apache License

/**
 * {@inheritDoc}/*from w  w  w. j av a2 s  .  c o  m*/
 */
public void runTest(WjrMethodItem methodItem, boolean cpumsEnabled, boolean apimsEnabled,
        boolean logHookEnabled, String logHookTimezone, final AsyncCallback<WjrMethodItem> callback) {
    final List<Pair> params = new ArrayList<Pair>();
    params.add(new Pair(KEY_METHOD, METHOD_RUN_TEST));
    params.add(new Pair(KEY_RUN_CLASS_NAME, methodItem.getClassName()));
    params.add(new Pair(KEY_RUN_METHOD_NAME, methodItem.getMethodName()));
    params.add(new Pair(KEY_CPUMS_ENABLED, Boolean.toString(cpumsEnabled)));
    params.add(new Pair(KEY_APIMS_ENABLED, Boolean.toString(apimsEnabled)));
    params.add(new Pair(KEY_LOGHOOK_ENABLED, Boolean.toString(logHookEnabled)));
    params.add(new Pair(KEY_LOGHOOK_TIMEZONE, logHookTimezone));
    try {
        sendRequest(params, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                callback.onFailure(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                try {
                    callback.onSuccess(createWjrMethodItemFromJson(response.getText()));
                } catch (Exception e) {
                    callback.onFailure(e);
                }
            }
        });
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

From source file:ca.upei.ic.timetable.client.CourseDetailController.java

License:Apache License

/**
 * Show the details of a course in a dialog box
 * //  www . ja v a 2  s.  c  o  m
 * @param courseId
 */
public void showCourseDetail(final int courseId) {

    Service.defaultInstance().cancelCourseDetailRequest();

    Service.defaultInstance().askCourseDetail(courseId, new RequestCallback() {

        public void onError(Request request, Throwable exception) {
            app_.error("Cannot get course details for course " + courseId, exception);
        }

        public void onResponseReceived(Request request, Response response) {
            try {
                String result = response.getText();
                JSONValue value = JSONParser.parse(result);
                try {
                    getView().loadJSON(value);
                    getView().showAt(265, 28);
                } catch (Exception ex) {
                    // do nothing
                }
            } catch (Exception ex) {
                app_.error("Cannot get course details for course " + courseId, ex);
            }
        }

    });
}

From source file:ca.upei.ic.timetable.client.CourseViewController.java

License:Apache License

public void search() {
    JSONObject department = new JSONObject();
    for (String d : departmentCriteria_.keySet()) {
        if (departmentCriteria_.get(d)) {
            department.put(d, JSONBoolean.getInstance(true));
        }//from  w  ww  . j a  v a  2  s  . c  om
    }
    JSONObject level = new JSONObject();
    for (String l : levelCriteria_.keySet()) {
        if (levelCriteria_.get(l)) {
            level.put(l, JSONBoolean.getInstance(true));
        }
    }
    JSONObject semester = new JSONObject();
    for (String s : semesterCriteria_.keySet()) {
        if (semesterCriteria_.get(s))
            semester.put(s, JSONBoolean.getInstance(true));
    }

    JSONObject value = new JSONObject();
    value.put("department", department);
    value.put("level", level);
    value.put("semester", semester);
    value.put("day", new JSONString(courseDay_));
    value.put("startTime", new JSONString(courseStartTime_));

    Service.defaultInstance().askCourses(value.toString(), new RequestCallback() {

        public void onError(Request request, Throwable exception) {
            app_.error(ApplicationController.OOPS, exception);
        }

        public void onResponseReceived(Request request, Response response) {

            try {
                JSONArray parsedArray = (JSONArray) JSONParser.parse(response.getText());
                // remove the selected courses
                // filtered array
                JSONArray filteredArray = new JSONArray();
                int filtered_index = 0;
                for (int i = 0; i < parsedArray.size(); i++) {
                    JSONObject o = (JSONObject) parsedArray.get(i);
                    int id = (int) ((JSONNumber) o.get("id")).doubleValue();
                    if (!isSelected(id)) {
                        filteredArray.set(filtered_index++, o);
                    }
                }
                // clear out the view so we can add courses
                view_.clear();
                // add the selected values first
                for (int index : selectionIndexes_) {
                    view_.addCourse(index, selectionValues_.get(index), true);
                }
                // add the remaining courses
                view_.loadJSON(filteredArray);
            } catch (Throwable e) {
                app_.error("Error: " + response.getText(), e);
            }
        }

    });
}

From source file:ca.upei.ic.timetable.client.FindCourseViewController.java

License:Apache License

/**
 * Get the department model/*  w w w.  j  ava 2 s .co  m*/
 * 
 * @return the department model
 */
public DepartmentModelView getDepartmentModel() {
    if (!departmentLoaded_) {
        Service.defaultInstance().askDepartments(new RequestCallback() {

            public void onError(Request request, Throwable exception) {
                app_.error(ApplicationController.OOPS, exception);
            }

            public void onResponseReceived(Request request, Response response) {
                JSONValue value = JSONParser.parse(response.getText());
                department_.loadJSON(value);
                departmentLoaded_ = true;
            }

        });
    }

    return department_;
}

From source file:ca.upei.ic.timetable.client.FindCourseViewController.java

License:Apache License

/**
 * Get the level model//from   w  w w.ja v a 2 s .  c o m
 * 
 * @return the level model
 */
public LevelModelView getLevelModel() {
    if (!levelLoaded_) {
        Service.defaultInstance().askCourseLevels(new RequestCallback() {

            public void onError(Request request, Throwable exception) {
                app_.error(ApplicationController.OOPS, exception);
            }

            public void onResponseReceived(Request request, Response response) {
                JSONValue value = JSONParser.parse(response.getText());
                level_.loadJSON(value);
                levelLoaded_ = true;
            }

        });
    }

    return level_;
}