| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with this |
| * work for additional information regarding copyright ownership. The ASF |
| * licenses this file to You 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.apache.sling.fileoptim.impl; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.jackrabbit.JcrConstants; |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.ModifiableValueMap; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.fileoptim.FileOptimizerConstants; |
| import org.apache.sling.fileoptim.FileOptimizerService; |
| import org.apache.sling.servlets.post.Modification; |
| import org.apache.sling.servlets.post.PostOperation; |
| import org.apache.sling.servlets.post.PostResponse; |
| import org.apache.sling.servlets.post.SlingPostProcessor; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The File Optimization operation restore the original file |
| */ |
| @Component(immediate = true, service = { PostOperation.class }, property = PostOperation.PROP_OPERATION_NAME |
| + "=fileoptim:restore") |
| public class RestoreOriginalOperation implements PostOperation { |
| |
| private static final Logger log = LoggerFactory.getLogger(RestoreOriginalOperation.class); |
| |
| @Reference |
| private FileOptimizerService fileOptimizer; |
| |
| protected void doRun(SlingHttpServletRequest request, List<Modification> changes) throws IOException { |
| Resource resource = request.getResource(); |
| if (fileOptimizer.isOptimized(resource)) { |
| ModifiableValueMap mvm = resource.getChild(JcrConstants.JCR_CONTENT).adaptTo(ModifiableValueMap.class); |
| mvm.put(JcrConstants.JCR_DATA, mvm.get(FileOptimizerConstants.PN_ORIGINAL, InputStream.class)); |
| mvm.remove(FileOptimizerConstants.PN_ORIGINAL); |
| mvm.remove(FileOptimizerConstants.PN_ALGORITHM); |
| mvm.remove(FileOptimizerConstants.PN_HASH); |
| mvm.remove(FileOptimizerConstants.PN_SAVINGS); |
| |
| resource.getResourceResolver().commit(); |
| |
| changes.add(Modification.onModified(resource.getPath())); |
| } |
| } |
| |
| public void run(final SlingHttpServletRequest request, final PostResponse response, |
| final SlingPostProcessor[] processors) { |
| |
| try { |
| // calculate the paths |
| String path = request.getResource().getPath(); |
| response.setPath(path); |
| |
| final List<Modification> changes = new ArrayList<>(); |
| |
| doRun(request, changes); |
| |
| // invoke processors |
| if (processors != null) { |
| for (SlingPostProcessor processor : processors) { |
| processor.process(request, changes); |
| } |
| } |
| |
| // check modifications for remaining postfix and store the base path |
| final Map<String, String> modificationSourcesContainingPostfix = new HashMap<>(); |
| final Set<String> allModificationSources = new HashSet<>(changes.size()); |
| for (final Modification modification : changes) { |
| final String source = modification.getSource(); |
| if (source != null) { |
| allModificationSources.add(source); |
| final int atIndex = source.indexOf('@'); |
| if (atIndex > 0) { |
| modificationSourcesContainingPostfix.put(source.substring(0, atIndex), source); |
| } |
| } |
| } |
| } catch (Exception e) { |
| log.error("Exception during response processing.", e); |
| response.setError(e); |
| } |
| } |
| |
| } |