Java tutorial
/* * Lokomo OneCMDB - An Open Source Software for Configuration * Management of Datacenter Resources * * Copyright (C) 2006 Lokomo Systems AB * * 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., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * Lokomo Systems AB can be contacted via e-mail: info@lokomo.com or via * paper mail: Lokomo Systems AB, Svrdvgen 27, SE-182 33 * Danderyd, Sweden. * */ package org.onecmdb.ui.gwt.desktop.client.widget.mdr; import java.util.List; import org.onecmdb.ui.gwt.desktop.client.action.CloseTextToolItem; import org.onecmdb.ui.gwt.desktop.client.service.model.CIModel; import org.onecmdb.ui.gwt.desktop.client.service.model.CMDBSession; import com.extjs.gxt.ui.client.event.ComponentEvent; import com.extjs.gxt.ui.client.event.SelectionListener; import com.extjs.gxt.ui.client.widget.ContentPanel; import com.extjs.gxt.ui.client.widget.Info; import com.extjs.gxt.ui.client.widget.LayoutContainer; import com.extjs.gxt.ui.client.widget.TabItem; import com.extjs.gxt.ui.client.widget.TabPanel; import com.extjs.gxt.ui.client.widget.layout.FitLayout; import com.extjs.gxt.ui.client.widget.toolbar.FillToolItem; import com.extjs.gxt.ui.client.widget.toolbar.TextToolItem; import com.extjs.gxt.ui.client.widget.toolbar.ToolBar; import com.google.gwt.core.client.GWT; 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.user.client.Element; import com.google.gwt.user.client.ui.Frame; public class MDRStartWidget extends LayoutContainer { private TabPanel advanced; private CIModel mdr; private List<CIModel> configs; public MDRStartWidget(CIModel mdr, List<CIModel> configs) { super(); this.mdr = mdr; this.configs = configs; } @Override protected void onRender(Element parent, int pos) { super.onRender(parent, pos); initUI(); } protected void initUI() { setLayout(new FitLayout()); ContentPanel panel = new ContentPanel(); panel.setHeaderVisible(false); panel.setLayout(new FitLayout()); ToolBar bar = new ToolBar(); TextToolItem start = new TextToolItem("Start", "start-icon"); start.setToolTip("Start execution"); start.addSelectionListener(new SelectionListener<ComponentEvent>() { @Override public void componentSelected(ComponentEvent ce) { doStart(); } }); bar.add(start); TextToolItem stop = new TextToolItem("Stop", "stop-icon"); stop.setToolTip("Abort execution before it has executed to completion"); stop.addSelectionListener(new SelectionListener<ComponentEvent>() { @Override public void componentSelected(ComponentEvent ce) { doStop(); } }); bar.add(stop); panel.setTopComponent(bar); advanced = new TabPanel(); advanced.setMinTabWidth(200); advanced.setResizeTabs(true); advanced.setAnimScroll(false); advanced.setTabScroll(true); for (CIModel model : this.configs) { TabItem item = new TabItem(); item.setText("Progress for " + model.getDisplayName()); item.setClosable(false); item.addStyleName("pad-text"); advanced.add(item); item.setLayout(new FitLayout()); item.setData("model", model); } panel.add(advanced); ToolBar bottom = new ToolBar(); bottom.add(new FillToolItem()); bottom.add(new CloseTextToolItem(this)); panel.setBottomComponent(bottom); add(panel); layout(); } public void doStart() { for (TabItem item : advanced.getItems()) { CIModel model = (CIModel) item.getData("model"); item.removeAll(); Frame f = new Frame(); item.add(f); f.setUrl(getStartURL(model)); item.layout(); } } public void doStop() { for (TabItem item : advanced.getItems()) { final CIModel model = (CIModel) item.getData("model"); // Do a HTTP request.. RequestBuilder req = new RequestBuilder(RequestBuilder.GET, getStopURL(model)); try { Info.display("Stop", "Send stop to " + model.getDisplayName()); req.sendRequest(null, new RequestCallback() { public void onResponseReceived(Request request, Response response) { Info.display("Stop", "COMPLETED. Stop sent to " + model.getDisplayName()); } public void onError(Request arg0, Throwable arg1) { Info.display("Stop", "FAILED. to stop " + model.getDisplayName()); } }); } catch (RequestException e) { Info.display("Stop", "ERROR. to stop " + model.getDisplayName()); } } } private String getStartURL(CIModel model) { String url = GWT.getModuleBaseURL() + "/" + "onecmdb/exec?" + "token=" + CMDBSession.get().getToken() + "&mdr=" + mdr.getValueAsString("name") + "&config=" + model.getValueAsString("name") + "&verbose=true" + "&cmd=start"; return (url); } private String getStopURL(CIModel model) { String url = GWT.getModuleBaseURL() + "/" + "onecmdb/exec?" + "token=" + CMDBSession.get().getToken() + "&mdr=" + mdr.getValueAsString("name") + "&config=" + model.getValueAsString("name") + "&verbose=true" + "&cmd=stop"; return (url); } }