Java tutorial
/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is part of dcm4che, an implementation of DICOM(TM) in * Java(TM), hosted at https://github.com/dcm4che. * * The Initial Developer of the Original Code is * Agfa Healthcare. * Portions created by the Initial Developer are Copyright (C) 2012 * the Initial Developer. All Rights Reserved. * * Contributor(s): * See @authors listed below * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ package org.dcm4chee.wizard.page; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import org.apache.wicket.AttributeModifier; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.form.AjaxFallbackButton; import org.apache.wicket.extensions.ajax.markup.html.IndicatingAjaxButton; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.markup.head.CssHeaderItem; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.form.TextArea; import org.apache.wicket.model.Model; import org.apache.wicket.model.ResourceModel; import org.apache.wicket.request.resource.CssResourceReference; import org.apache.wicket.request.resource.ResourceReference; import org.dcm4che3.data.Tag; import org.dcm4che3.data.UID; import org.dcm4che3.net.ApplicationEntity; import org.dcm4che3.net.Association; import org.dcm4che3.net.DimseRSP; import org.dcm4che3.net.pdu.AAssociateRQ; import org.dcm4che3.net.pdu.PresentationContext; import org.dcm4chee.wizard.common.component.ExtendedForm; import org.dcm4chee.wizard.common.component.MainWebPage; import org.dcm4chee.wizard.common.component.secure.SecureSessionCheckPage; import org.dcm4chee.wizard.tree.ConfigTreeProvider; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * @author Robert David <robert.david@agfa.com> */ public class DicomEchoPage extends SecureSessionCheckPage { private static final long serialVersionUID = 1L; private static Logger log = LoggerFactory.getLogger(DicomEchoPage.class); private static final ResourceReference baseCSS = new CssResourceReference(MainWebPage.class, "base-style.css"); private transient ApplicationEntity sourceAE; private transient ApplicationEntity destinationAE; private boolean error; private Model<String> resultModel; final String sourceAET = System.getProperty("org.dcm4chee.wizard.config.aeTitle"); public DicomEchoPage(final ModalWindow window, ApplicationEntity destinationAE) { super(); this.destinationAE = destinationAE; setOutputMarkupId(true); final ExtendedForm form = new ExtendedForm("form"); form.setResourceIdPrefix("dicom.list.applicationEntity.echo."); add(form); form.add(new Label("sourceAET.label", new ResourceModel("dicom.list.applicationEntity.echo.sourceAET.label"))); form.add(new Label("sourceAET", sourceAET)); form.add(new Label("destinationAET.label", new ResourceModel("dicom.list.applicationEntity.echo.destinationAET.label"))); form.add(new Label("destinationAET", destinationAE.getAETitle())); form.add(new Label("result.label", new ResourceModel("dicom.list.applicationEntity.echo.result.label"))); form.add(new TextArea<String>("result", (resultModel = new Model<String>())).setEscapeModelStrings(false) .add(new AttributeModifier("class", new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { return error ? "error" : "text"; } }))); form.add(new IndicatingAjaxButton("echo", new ResourceModel("dicom.list.applicationEntity.echo.echoBtn.text"), form) { private static final long serialVersionUID = 1L; @Override protected void onSubmit(AjaxRequestTarget target, Form<?> form) { doEcho(); target.add(form); } @Override protected void onError(AjaxRequestTarget target, Form<?> form) { if (target != null) target.add(form); } }); form.add(new AjaxFallbackButton("cancel", new ResourceModel("dicom.list.applicationEntity.echo.cancelBtn.text"), form) { private static final long serialVersionUID = 1L; @Override protected void onSubmit(AjaxRequestTarget target, Form<?> form) { window.close(target); } @Override protected void onError(AjaxRequestTarget arg0, Form<?> arg1) { } }.setDefaultFormProcessing(false)); doEcho(); } @Override public void renderHead(IHeaderResponse response) { if (DicomEchoPage.baseCSS != null) response.render(CssHeaderItem.forReference(DicomEchoPage.baseCSS)); } private void doEcho() { ExecutorService executorService = Executors.newSingleThreadExecutor(); try { resultModel.setObject("Fetching Source AE from configuration ..."); sourceAE = ConfigTreeProvider.get().getApplicationEntity(sourceAET); resultModel.setObject(resultModel.getObject() + " OK\n"); if (sourceAE == null) throw new Exception("Could not fetch source AE"); else { resultModel.setObject(resultModel.getObject() + "Connecting to Destination AE ..."); sourceAE.getDevice().setExecutor(executorService); AAssociateRQ request = new AAssociateRQ(); request.addPresentationContext(new PresentationContext(1, UID.VerificationSOPClass, new String[] { UID.ImplicitVRLittleEndian })); Association association = sourceAE.connect(DicomEchoPage.this.destinationAE, request); resultModel.setObject(resultModel.getObject() + " OK\nProcessing CECHO request ..."); DimseRSP response = association.cecho(); response.next(); resultModel.setObject(resultModel.getObject() + " OK\nResult is: " + response.getCommand().getInt(Tag.Status, -1) + "\nEcho completed successfully.\n"); association.release(); } } catch (Exception e) { log.error("Error processing echo request", e); error = true; resultModel.setObject(resultModel.getObject() + "\nERROR: \n" + e.getMessage() + "\n"); } finally { executorService.shutdownNow(); } } }