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/*
* 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;
}
}
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