Java tutorial
/** * Licensed to JumpMind Inc under one or more contributor * license agreements. See the NOTICE file distributed * with this work for additional information regarding * copyright ownership. JumpMind Inc licenses this file * to you under the GNU General Public License, version 3.0 (GPLv3) * (the "License"); you may not use this file except in compliance * with the License. * * You should have received a copy of the GNU General Public License, * version 3.0 (GPLv3) along with this library; if not, see * <http://www.gnu.org/licenses/>. * * 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.jumpmind.symmetric.web; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItemIterator; import org.apache.commons.fileupload.FileItemStream; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.commons.lang.StringUtils; import org.jumpmind.symmetric.ISymmetricEngine; public class FileSyncPushUriHandler extends AbstractUriHandler { private ISymmetricEngine engine; public FileSyncPushUriHandler(ISymmetricEngine engine, IInterceptor... interceptors) { super("/filesync/push/*", engine.getParameterService(), interceptors); this.engine = engine; } public void handle(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException, FileUploadException { String nodeId = ServletUtils.getParameter(req, WebConstants.NODE_ID); if (StringUtils.isBlank(nodeId)) { ServletUtils.sendError(res, HttpServletResponse.SC_BAD_REQUEST, "Node must be specified"); return; } else if (!ServletFileUpload.isMultipartContent(req)) { ServletUtils.sendError(res, HttpServletResponse.SC_BAD_REQUEST, "We only handle multipart requests"); return; } else { log.debug("File sync push request received from {}", nodeId); } ServletFileUpload upload = new ServletFileUpload(); // Parse the request FileItemIterator iter = upload.getItemIterator(req); while (iter.hasNext()) { FileItemStream item = iter.next(); String name = item.getFieldName(); if (!item.isFormField()) { log.debug("Processing upload file field " + name + " with file name " + item.getName() + " detected."); engine.getFileSyncService().loadFilesFromPush(nodeId, item.openStream(), res.getOutputStream()); } } res.flushBuffer(); } }