Java tutorial
/*- * ========================LICENSE_START================================= * AEM Permission Management * %% * Copyright (C) 2013 Cognifide Limited * %% * 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. * =========================LICENSE_END================================== */ package com.cognifide.cq.cqsm.core.servlets; import com.google.common.collect.Maps; import com.cognifide.cq.cqsm.api.scripts.Script; import com.cognifide.cq.cqsm.api.scripts.ScriptStorage; import com.cognifide.cq.cqsm.core.Cqsm; import com.cognifide.cq.cqsm.core.scripts.ScriptUtils; import com.cognifide.cq.cqsm.core.utils.ServletUtils; import org.apache.commons.lang.BooleanUtils; import org.apache.commons.lang.StringUtils; import org.apache.felix.scr.annotations.Properties; import org.apache.felix.scr.annotations.Property; import org.apache.felix.scr.annotations.Reference; import org.apache.felix.scr.annotations.Service; import org.apache.felix.scr.annotations.sling.SlingServlet; import org.apache.sling.api.SlingHttpServletRequest; import org.apache.sling.api.SlingHttpServletResponse; import org.apache.sling.api.request.RequestParameter; import org.apache.sling.api.servlets.SlingAllMethodsServlet; import org.osgi.framework.Constants; import java.io.IOException; import java.io.InputStream; import java.util.List; import java.util.Map; import javax.jcr.RepositoryException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletResponse; @SlingServlet(paths = { "/bin/cqsm/fileUpload" }, methods = { "POST" }) @Service @Properties({ @Property(name = Constants.SERVICE_DESCRIPTION, value = "CQSM File Upload Servlet"), @Property(name = Constants.SERVICE_VENDOR, value = Cqsm.VENDOR_NAME) }) public class ScriptUploadServlet extends SlingAllMethodsServlet { private static final String REDIRECT_URL = "/etc/cqsm.html"; @Reference private ScriptStorage scriptStorage; @Override protected void doPost(final SlingHttpServletRequest request, final SlingHttpServletResponse response) throws ServletException, IOException { try { final Map<String, InputStream> files = Maps.newHashMap(); for (RequestParameter file : request.getRequestParameters("file")) { files.put(file.getFileName(), file.getInputStream()); } final List<Script> scripts = scriptStorage.saveAll(files, isOverwrite(request), request.getResourceResolver()); if (shouldRedirect(request)) { response.sendRedirect(getRedirectTo(request)); } else { ServletUtils.writeJson(response, ScriptUtils.toJson(scripts)); } } catch (RepositoryException e) { response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); ServletUtils.writeJson(response, "Cannot save script in repository: " + e.getMessage()); } } private boolean shouldRedirect(SlingHttpServletRequest request) { return BooleanUtils.toBoolean(request.getParameter("redirect")); } private boolean isOverwrite(SlingHttpServletRequest request) { return BooleanUtils.toBoolean(request.getParameter("overwrite")); } private String getRedirectTo(SlingHttpServletRequest request) { return StringUtils.defaultIfEmpty(request.getParameter("redirectTo"), REDIRECT_URL); } }