Java tutorial
/* * $Id$ * * Authors: * Jeff Buchbinder <jeff@freemedsoftware.org> * * FreeMED Electronic Medical Record and Practice Management System * Copyright (C) 1999-2012 FreeMED Software Foundation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ package org.freemedsoftware.gwt.client.widget; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import org.freemedsoftware.gwt.client.CurrentState; import org.freemedsoftware.gwt.client.JsonUtil; import org.freemedsoftware.gwt.client.Util; import org.freemedsoftware.gwt.client.Util.ProgramMode; import org.freemedsoftware.gwt.client.Api.UserInterfaceAsync; import com.google.gwt.core.client.GWT; 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.URL; import com.google.gwt.json.client.JSONParser; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.SuggestOracle; import com.google.gwt.user.client.ui.SuggestOracle.Callback; import com.google.gwt.user.client.ui.SuggestOracle.Request; public class UserWidget extends AsyncPicklistWidgetBase { protected String userType; public UserWidget() { super(); userType = ""; } /** * Set value of current widget based on integer value, asynchronously. * * @param widgetValue */ public void setValue(Integer widgetValue) { value = widgetValue; if (Util.getProgramMode() == ProgramMode.STUBBED) { searchBox.setText("Stub Value"); searchBox.setTitle("Stub Value"); } else if (Util.getProgramMode() == ProgramMode.JSONRPC) { if (widgetValue.compareTo(0) == 0) { searchBox.setText(""); searchBox.setTitle(""); } else { String[] params = { widgetValue.toString() }; RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, URL.encode(Util.getJsonRequest("org.freemedsoftware.api.UserInterface.GetRecord", params))); try { builder.sendRequest(null, new RequestCallback() { public void onError(com.google.gwt.http.client.Request request, Throwable ex) { } @SuppressWarnings("unchecked") public void onResponseReceived(com.google.gwt.http.client.Request request, com.google.gwt.http.client.Response response) { if (Util.checkValidSessionResponse(response.getText())) { if (200 == response.getStatusCode()) { HashMap<String, String> result = (HashMap<String, String>) JsonUtil .shoehornJson(JSONParser.parseStrict(response.getText()), "HashMap<String,String>"); if (result != null) { searchBox.setText(result.get("userdescrip")); searchBox.setTitle(result.get("userdescrip")); } } else { Window.alert(response.toString()); } } } }); } catch (RequestException e) { } } } else { UserInterfaceAsync service = null; try { service = ((UserInterfaceAsync) Util.getProxy("org.freemedsoftware.gwt.client.Api.UserInterface")); } catch (Exception e) { } service.GetRecord(widgetValue, new AsyncCallback<HashMap<String, String>>() { public void onSuccess(HashMap<String, String> r) { searchBox.setText(r.get("userdescrip")); searchBox.setTitle(r.get("userdescrip")); } public void onFailure(Throwable t) { } }); } } protected void loadSuggestions(String req, final Request r, final Callback cb) { if (req.length() < CurrentState.getMinCharCountForSmartSearch()) return; if (Util.getProgramMode() == ProgramMode.STUBBED) { // Handle in a stubbed sort of way List<SuggestOracle.Suggestion> items = new ArrayList<SuggestOracle.Suggestion>(); map.clear(); addKeyValuePair(items, new String("Hackenbush, Hugo Z"), new String("1")); addKeyValuePair(items, new String("Firefly, Rufus T"), new String("2")); cb.onSuggestionsReady(r, new SuggestOracle.Response(items)); } else if (Util.getProgramMode() == ProgramMode.JSONRPC) { RequestBuilder builder = null; if (userType.equals("")) { String[] params = { req }; builder = new RequestBuilder(RequestBuilder.POST, URL.encode(Util.getJsonRequest("org.freemedsoftware.api.UserInterface.GetUsers", params))); } else { String[] params = { req, userType }; builder = new RequestBuilder(RequestBuilder.POST, URL.encode(Util.getJsonRequest("org.freemedsoftware.api.UserInterface.GetUsers", params))); } try { builder.sendRequest(null, new RequestCallback() { public void onError(com.google.gwt.http.client.Request request, Throwable ex) { } public void onResponseReceived(com.google.gwt.http.client.Request request, com.google.gwt.http.client.Response response) { if (Util.checkValidSessionResponse(response.getText())) { if (200 == response.getStatusCode()) { String[][] result = (String[][]) JsonUtil .shoehornJson(JSONParser.parseStrict(response.getText()), "String[][]"); if (result != null) { List<SuggestOracle.Suggestion> items = new ArrayList<SuggestOracle.Suggestion>(); map.clear(); for (int iter = 0; iter < result.length; iter++) { String[] x = result[iter]; final String key = x[1]; final String val = x[0]; addKeyValuePair(items, val, key); } cb.onSuggestionsReady(r, new SuggestOracle.Response(items)); } } else { GWT.log("Result " + response.getStatusText(), null); } } } }); } catch (RequestException e) { GWT.log("Exception thrown: ", e); } } else { UserInterfaceAsync service = null; try { service = ((UserInterfaceAsync) Util.getProxy("org.freemedsoftware.gwt.client.Api.UserInterface")); } catch (Exception e) { } service.GetUsers(req, new AsyncCallback<String[][]>() { public void onSuccess(String[][] result) { List<SuggestOracle.Suggestion> items = new ArrayList<SuggestOracle.Suggestion>(); map.clear(); for (int iter = 0; iter < result.length; iter++) { String[] x = result[iter]; final String key = x[1]; final String val = x[0]; addKeyValuePair(items, val, key); } cb.onSuggestionsReady(r, new SuggestOracle.Response(items)); } public void onFailure(Throwable t) { GWT.log("Exception thrown: ", t); } }); } } @Override public void getTextForValue(Integer val) { if (Util.getProgramMode() == ProgramMode.STUBBED) { searchBox.setText("Hackenbush, Hugo Z (STUB)"); } else if (Util.getProgramMode() == ProgramMode.JSONRPC) { String[] params = { val.toString() }; RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, URL.encode(Util.getJsonRequest("org.freemedsoftware.api.UserInterface.GetRecord", params))); try { builder.sendRequest(null, new RequestCallback() { public void onError(com.google.gwt.http.client.Request request, Throwable ex) { } @SuppressWarnings("unchecked") public void onResponseReceived(com.google.gwt.http.client.Request request, com.google.gwt.http.client.Response response) { if (Util.checkValidSessionResponse(response.getText())) { if (200 == response.getStatusCode()) { HashMap<String, String> result = (HashMap<String, String>) JsonUtil.shoehornJson( JSONParser.parseStrict(response.getText()), "HashMap<String,String>"); if (result != null) { searchBox.setText(result.get("userdescrip")); } } else { GWT.log("Result " + response.getStatusText(), null); } } } }); } catch (RequestException e) { GWT.log("Exception thrown: ", e); } } else { UserInterfaceAsync service = null; try { service = ((UserInterfaceAsync) Util.getProxy("org.freemedsoftware.gwt.client.Api.UserInterface")); } catch (Exception e) { } service.GetRecord(val, new AsyncCallback<HashMap<String, String>>() { public void onSuccess(HashMap<String, String> r) { searchBox.setText(r.get("userdescrip")); } public void onFailure(Throwable t) { GWT.log("Exception", t); } }); } } public void setUserType(String type) { userType = type; } }