1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 /* $Id: PDFEmbeddedFiles.java 1761021 2016-09-16 11:40:57Z ssteiner $ */ 19 20 package org.apache.fop.pdf; 21 22 import java.io.IOException; 23 import java.io.OutputStream; 24 import java.util.Map; 25 import java.util.SortedMap; 26 27 /** 28 * Class representing an /EmbeddedFiles dictionary object (name tree). 29 */ 30 public class PDFEmbeddedFiles extends PDFNameTreeNode { 31 32 /** 33 * Create a /EmbeddedFiles dictionary. 34 */ PDFEmbeddedFiles()35 public PDFEmbeddedFiles() { 36 super(); 37 } 38 39 /** {@inheritDoc} */ writeDictionary(OutputStream out, StringBuilder textBuffer)40 protected void writeDictionary(OutputStream out, StringBuilder textBuffer) throws IOException { 41 sortNames(); //Sort the names before writing them out 42 super.writeDictionary(out, textBuffer); 43 } 44 sortNames()45 private void sortNames() { 46 PDFArray names = getNames(); 47 SortedMap map = new java.util.TreeMap(); 48 int i = 0; 49 int c = names.length(); 50 while (i < c) { 51 Comparable key = (Comparable)names.get(i++); //Key must be a Comparable for sorting 52 Object value = names.get(i++); 53 map.put(key, value); 54 } 55 names.clear(); 56 for (Object o : map.entrySet()) { 57 Map.Entry entry = (Map.Entry) o; 58 names.add(entry.getKey()); 59 names.add(entry.getValue()); 60 } 61 } 62 } 63 64