| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.pdf.xref; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.fop.pdf.PDFArray; |
| import org.apache.fop.pdf.PDFDictionary; |
| import org.apache.fop.pdf.PDFDocument; |
| import org.apache.fop.pdf.PDFEncryption; |
| import org.apache.fop.pdf.PDFInfo; |
| import org.apache.fop.pdf.PDFRoot; |
| import org.apache.fop.pdf.PDFText; |
| import org.apache.fop.pdf.PDFWritable; |
| |
| /** |
| * A data class representing entries of the file trailer dictionary. |
| */ |
| public class TrailerDictionary { |
| |
| private final PDFDictionary dictionary; |
| |
| public TrailerDictionary(PDFDocument pdfDocument) { |
| this.dictionary = new PDFDictionary(); |
| this.dictionary.setDocument(pdfDocument); |
| } |
| |
| /** Sets the value of the Root entry. */ |
| public TrailerDictionary setRoot(PDFRoot root) { |
| dictionary.put("/Root", root); |
| return this; |
| } |
| |
| /** Sets the value of the Info entry. */ |
| public TrailerDictionary setInfo(PDFInfo info) { |
| dictionary.put("/Info", info); |
| return this; |
| } |
| |
| /** Sets the value of the Encrypt entry. */ |
| public TrailerDictionary setEncryption(PDFEncryption encryption) { |
| dictionary.put("/Encrypt", encryption); |
| return this; |
| } |
| |
| /** Sets the value of the ID entry. */ |
| public TrailerDictionary setFileID(byte[] originalFileID, byte[] updatedFileID) { |
| // TODO this is ugly! Used to circumvent the fact that the file ID will be |
| // encrypted if directly stored as a byte array |
| class FileID implements PDFWritable { |
| |
| private final byte[] fileID; |
| |
| FileID(byte[] id) { |
| fileID = id; |
| } |
| |
| public void outputInline(OutputStream out, StringBuilder textBuffer) |
| throws IOException { |
| PDFDocument.flushTextBuffer(textBuffer, out); |
| String hex = PDFText.toHex(fileID, true); |
| byte[] encoded = hex.getBytes("US-ASCII"); |
| out.write(encoded); |
| } |
| |
| } |
| PDFArray fileID = new PDFArray(new FileID(originalFileID), new FileID(updatedFileID)); |
| dictionary.put("/ID", fileID); |
| return this; |
| } |
| |
| public PDFDictionary getDictionary() { |
| return dictionary; |
| } |
| |
| } |