| /* |
| * 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.tika.detect.zip; |
| |
| import static org.apache.tika.detect.zip.PackageConstants.KMZ; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Enumeration; |
| |
| import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; |
| import org.apache.commons.compress.archivers.zip.ZipFile; |
| |
| import org.apache.tika.io.TikaInputStream; |
| import org.apache.tika.mime.MediaType; |
| |
| public class KMZDetector implements ZipContainerDetector { |
| @Override |
| public MediaType detect(ZipFile zip, TikaInputStream tis) throws IOException { |
| boolean kmlFound = false; |
| |
| Enumeration<ZipArchiveEntry> entries = zip.getEntries(); |
| while (entries.hasMoreElements()) { |
| ZipArchiveEntry entry = entries.nextElement(); |
| String name = entry.getName(); |
| if (!entry.isDirectory() && name.indexOf('/') == -1 && name.indexOf('\\') == -1) { |
| if (name.endsWith(".kml") && !kmlFound) { |
| kmlFound = true; |
| } else { |
| return null; |
| } |
| } |
| } |
| |
| if (kmlFound) { |
| return MediaType.application("vnd.google-earth.kmz"); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public MediaType streamingDetectUpdate(ZipArchiveEntry zae, InputStream zis, |
| StreamingDetectContext detectContext) { |
| String name = zae.getName(); |
| |
| if (name.indexOf('/') != -1 || name.indexOf('\\') != -1) { |
| return null; |
| } |
| if (name.endsWith(".kml")) { |
| KMLCounter counter = detectContext.get(KMLCounter.class); |
| if (counter == null) { |
| counter = new KMLCounter(); |
| detectContext.set(KMLCounter.class, counter); |
| } |
| counter.increment(); |
| } |
| return null; |
| } |
| |
| @Override |
| public MediaType streamingDetectFinal(StreamingDetectContext detectContext) { |
| if (detectContext.get(KMLCounter.class) != null) { |
| if (detectContext.get(KMLCounter.class).getCount() == 1) { |
| return KMZ; |
| } |
| } |
| return null; |
| } |
| |
| private static class KMLCounter { |
| private int cnt = 0; |
| |
| int getCount() { |
| return cnt; |
| } |
| |
| void increment() { |
| cnt++; |
| } |
| } |
| } |