Java tutorial
/* Copyright 2010 predic8 GmbH, www.predic8.com Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package com.predic8.plugin.membrane_client.views; import java.io.UnsupportedEncodingException; import java.net.URL; import java.util.List; import java.util.Map; import org.apache.http.auth.UsernamePasswordCredentials; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.core.runtime.jobs.JobChangeAdapter; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.RowData; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.ProgressBar; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; import com.predic8.membrane.client.core.controller.ExchangeNode; import com.predic8.membrane.client.core.controller.ParamsMap; import com.predic8.membrane.client.core.controller.ServiceParamsManager; import com.predic8.membrane.client.core.util.FormParamsExtractor; import com.predic8.membrane.client.core.util.HttpUtil; import com.predic8.membrane.client.core.util.SOAModelUtil; import com.predic8.membrane.core.exchange.Exchange; import com.predic8.membrane.core.http.Request; import com.predic8.membrane.core.http.Response; import com.predic8.plugin.membrane_client.ImageKeys; import com.predic8.plugin.membrane_client.MembraneClientUIPlugin; import com.predic8.plugin.membrane_client.jobs.ClientCallerJob; import com.predic8.plugin.membrane_client.message.composite.RequestComposite; import com.predic8.plugin.membrane_client.tabcomposites.SecurityTabComposite; import com.predic8.plugin.membrane_client.ui.PluginUtil; import com.predic8.wsdl.BindingOperation; import com.predic8.wsdl.Port; public class RequestView extends MessageView { public static final String VIEW_ID = "com.predic8.plugin.membrane_client.views.RequestView"; private Text textAddress; private ClientCallerJob callerJob; private ProgressBar progressBar; private ToolItem itemSend; private ToolItem itemStop; private Request request; private UsernamePasswordCredentials credentials; private BindingOperation bindingOperation; private FormParamsExtractor extractor = new FormParamsExtractor(); @Override public void createPartControl(Composite parent) { super.createPartControl(parent); } private boolean canPerformClientCall() { if ("".equals(textAddress.getText().trim()) && request == null) { MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Client Call Error", "Request and destination address is missing."); return false; } if ("".equals(textAddress.getText().trim())) { MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Client Call Error", "Destination address is missing."); return false; } try { new URL(textAddress.getText().trim()); } catch (Exception ex) { MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Client Call Error", "Destination address is not valid URL."); return false; } if (request == null) { MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Client Call Error", "Request is missing."); return false; } return true; } @Override protected void addTopWidgets() { Composite controls = new Composite(partComposite, SWT.NONE); controls.setLayout(new RowLayout()); ToolBar toolBar = new ToolBar(controls, SWT.NONE); createSendItem(toolBar); createStopItem(toolBar); new ToolItem(toolBar, SWT.SEPARATOR).setWidth(450); createProgressBar(controls); Composite composite = new Composite(partComposite, SWT.NONE); composite.setLayout(new RowLayout()); new Label(composite, SWT.NONE).setText("Endpoint Address: "); createAddressTextField(composite); new Label(partComposite, SWT.NONE).setText(" "); } private void createAddressTextField(Composite composite) { textAddress = new Text(composite, SWT.BORDER); RowData rd = new RowData(); rd.width = 425; textAddress.setLayoutData(rd); } private void createProgressBar(Composite firstRowControls) { progressBar = new ProgressBar(firstRowControls, SWT.SMOOTH | SWT.INDETERMINATE); progressBar.setVisible(false); RowData rd = new RowData(); rd.width = 32; rd.height = 20; progressBar.setLayoutData(rd); } private void createStopItem(ToolBar toolBar) { itemStop = new ToolItem(toolBar, SWT.PUSH); itemStop.setImage(MembraneClientUIPlugin.getDefault().getImageRegistry() .getDescriptor(ImageKeys.IMAGE_CONTROL_STOP).createImage()); itemStop.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { updateControlButtons(false, null); callerJob.cancel(); } }); itemStop.setEnabled(false); } private void createSendItem(ToolBar toolBar) { itemSend = new ToolItem(toolBar, SWT.PUSH); itemSend.setImage(MembraneClientUIPlugin.getDefault().getImageRegistry() .getDescriptor(ImageKeys.IMAGE_CONTROL_PLAY).createImage()); itemSend.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { try { if (!canPerformClientCall()) { return; } updateControlButtons(true, null); executeClientCall(getRequestBody()); } catch (Exception ex) { ex.printStackTrace(); } } }); } private String getRequestBody() { if (getRequestComposite().isBodyTabSelected()) return getRequestComposite().getBodyText(); else return SOAModelUtil.getSOARequestBody(bindingOperation, getRequestComposite().getFormParams()); } private void updateControlButtons(final boolean status, final Job job) { Display.getDefault().asyncExec(new Runnable() { public void run() { if (otherJobStarted(job)) return; itemSend.setEnabled(!status); itemStop.setEnabled(status); progressBar.setVisible(status); } }); } private void executeClientCall(final String body) throws Exception { if (request == null) return; request.setBodyContent(body.getBytes()); SecurityTabComposite secTab = this.getRequestComposite().getTabManager().getSecurityTabComposite(); if (secTab.getBasicHttpAuthCheckbox().getSelection()) { this.credentials = new UsernamePasswordCredentials(secTab.getUserText().getText(), secTab.getPasswordText().getText()); try { this.request.getHeader().setAuthorization(this.credentials.getUserName(), this.credentials.getPassword()); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } } callerJob = new ClientCallerJob(textAddress.getText().trim(), request); callerJob.setPriority(Job.SHORT); callerJob.addJobChangeListener(new JobChangeAdapter() { public void done(IJobChangeEvent event) { if (event.getResult().isOK() && !callerJob.isCancelStatus()) { showMessageInResponseView(callerJob.getExchange().getResponse()); Exchange exc = callerJob.getExchange(); ServiceParamsManager.getInstance().newExchangeArrived(bindingOperation, createExchangeNode(exc)); } updateControlButtons(false, event.getJob()); } }); callerJob.schedule(); } private Map<String, String> getRequestMap(Exchange exc) throws Exception { byte[] content = exc.getRequest().getBody().getContent(); if (content == null || content.length == 0) return null; return extractor.extract(new String(content)); } public void updateView(BindingOperation bindOp, ParamsMap paramsMap) { this.bindingOperation = bindOp; textAddress.setText(getEndpointAddress(bindOp)); request = HttpUtil.getRequest(bindOp, textAddress.getText()); setMessage(request, bindOp, paramsMap); } private String getEndpointAddress(BindingOperation bindOp) { List<Port> ports = bindOp.getDefinitions().getServices().get(0).getPorts(); for (Port port : ports) { if (port.getBinding().getName().equals(bindOp.getBinding().getName())) return port.getAddress().getLocation(); } throw new RuntimeException("No corresponding endpoint address found."); } @Override protected void createBaseComposite(Composite parent) { baseComp = new RequestComposite(parent, SWT.NONE, this); } private void showMessageInResponseView(final Response response) { if (response == null) return; Display.getDefault().asyncExec(new Runnable() { public void run() { ResponseView view = (ResponseView) PluginUtil.showView(ResponseView.VIEW_ID); view.setMessage(response, bindingOperation, null); } }); } private boolean otherJobStarted(final Job job) { return job != null && callerJob != null && job != callerJob; } private RequestComposite getRequestComposite() { return ((RequestComposite) baseComp); } public BindingOperation getBindingOperation() { return bindingOperation; } private ExchangeNode createExchangeNode(Exchange exc) { ExchangeNode node = new ExchangeNode(exc.getTime()); node.setResponse(exc.getResponse()); ParamsMap paramsMap = new ParamsMap(); try { paramsMap.setMap(getRequestMap(exc)); } catch (Exception e) { e.printStackTrace(); } node.setParamsMap(paramsMap); return node; } }