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- /*
- * Copyright 2000-2016 Vaadin Ltd.
- *
- * 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.vaadin.server.communication;
-
- import java.io.BufferedWriter;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.io.OutputStreamWriter;
- import java.io.PrintWriter;
-
- import javax.portlet.PortletResponse;
- import javax.portlet.ResourceRequest;
- import javax.portlet.ResourceResponse;
-
- import com.vaadin.server.RequestHandler;
- import com.vaadin.server.VaadinPortletResponse;
- import com.vaadin.server.VaadinRequest;
- import com.vaadin.server.VaadinResponse;
- import com.vaadin.server.VaadinSession;
-
- /**
- * Request handler which provides a dummy HTML response to any resource request
- * with the resource id DUMMY.
- *
- * @author Vaadin Ltd
- * @since 7.1
- */
- public class PortletDummyRequestHandler implements RequestHandler {
-
- @Override
- public boolean handleRequest(VaadinSession session, VaadinRequest request,
- VaadinResponse response) throws IOException {
- if (!isDummyRequest(request)) {
- return false;
- }
-
- /*
- * This dummy page is used by action responses to redirect to, in order
- * to prevent the boot strap code from being rendered into strange
- * places such as iframes.
- */
- PortletResponse portletResponse = ((VaadinPortletResponse) response)
- .getPortletResponse();
- if (portletResponse instanceof ResourceResponse) {
- ((ResourceResponse) portletResponse).setContentType("text/html");
- }
-
- final OutputStream out = ((ResourceResponse) response)
- .getPortletOutputStream();
- try (PrintWriter outWriter = new PrintWriter(
- new BufferedWriter(new OutputStreamWriter(out, "UTF-8")))) {
- outWriter.print("<html><body>dummy page</body></html>");
- }
-
- return true;
- }
-
- public static boolean isDummyRequest(VaadinRequest request) {
- ResourceRequest resourceRequest = PortletUIInitHandler
- .getResourceRequest(request);
- if (resourceRequest == null) {
- return false;
- }
-
- return resourceRequest.getResourceID() != null
- && resourceRequest.getResourceID().equals("DUMMY");
- }
-
- }
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