--- /dev/null
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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 org.argeo.eclipse.ui.specific;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.client.service.UrlLauncher;
+
+/**
+ * Rap specific command handler to open a file retrieved from the server. It
+ * forwards the request to the correct service after encoding file name and path
+ * in the request URI.
+ *
+ * The parameter "URI" is used to determine the correct file service, the path
+ * and the file name. An optional file name can be precised to present a
+ * different file name as the one used to retrieve it to the end user/
+ *
+ * Various instances of this handler with different command ID might coexist in
+ * order to provide context specific download service.
+ *
+ * The instance specific service is called by its ID and must have been
+ * externally created
+ */
+public class OpenFile extends AbstractHandler {
+ private final static Log log = LogFactory.getLog(OpenFile.class);
+
+ /* DEPENDENCY INJECTION */
+ private String openFileServiceId;
+
+ public final static String PARAM_FILE_NAME = OpenFileService.PARAM_FILE_NAME;
+ public final static String PARAM_FILE_URI = OpenFileService.PARAM_FILE_URI; // "param.fileURI";
+
+ public Object execute(ExecutionEvent event) throws ExecutionException {
+ String fileName = event.getParameter(PARAM_FILE_NAME);
+ String fileUri = event.getParameter(PARAM_FILE_URI);
+
+ // sanity check
+ if (fileUri == null || "".equals(fileUri.trim())
+ || openFileServiceId == null
+ || "".equals(openFileServiceId.trim()))
+ return null;
+
+ StringBuilder url = new StringBuilder();
+ url.append(RWT.getServiceManager().getServiceHandlerUrl(
+ openFileServiceId));
+
+ url.append("&").append(PARAM_FILE_NAME).append("=");
+ url.append(fileName);
+ url.append("&").append(PARAM_FILE_URI).append("=");
+ url.append(fileUri);
+
+ String downloadUrl = url.toString();
+ if (log.isTraceEnabled())
+ log.debug("URL : " + downloadUrl);
+
+ UrlLauncher launcher = RWT.getClient().getService(UrlLauncher.class);
+ launcher.openURL(downloadUrl);
+
+ // These lines are useless in the current use case but might be
+ // necessary with new browsers. Stored here for memo
+ // response.setContentType("application/force-download");
+ // response.setHeader("Content-Disposition", contentDisposition);
+ // response.setHeader("Content-Transfer-Encoding", "binary");
+ // response.setHeader("Pragma", "no-cache");
+ // response.setHeader("Cache-Control", "no-cache, must-revalidate");
+ return null;
+ }
+
+ /* DEPENDENCY INJECTION */
+ public void setOpenFileServiceId(String openFileServiceId) {
+ this.openFileServiceId = openFileServiceId;
+ }
+}
\ No newline at end of file