diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/xml/xmp/XmpWriter.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/xml/xmp/XmpWriter.java | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/xml/xmp/XmpWriter.java b/src/main/java/com/lowagie/text/xml/xmp/XmpWriter.java new file mode 100644 index 0000000..8cec5f8 --- /dev/null +++ b/src/main/java/com/lowagie/text/xml/xmp/XmpWriter.java @@ -0,0 +1,276 @@ +/*
+ * $Id: XmpWriter.java,v 1.8 2005/11/14 15:21:45 blowagie Exp $
+ * $Name: $
+ *
+ * Copyright 2005 by Bruno Lowagie.
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999-2005 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000-2005 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above. If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU LIBRARY GENERAL PUBLIC LICENSE for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.xml.xmp;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.util.Map;
+import java.util.Iterator;
+
+import com.lowagie.text.pdf.PdfDate;
+import com.lowagie.text.pdf.PdfDictionary;
+import com.lowagie.text.pdf.PdfName;
+import com.lowagie.text.pdf.PdfObject;
+import com.lowagie.text.pdf.PdfString;
+
+/**
+ * With this class you can create an Xmp Stream that can be used for adding
+ * Metadata to a PDF Dictionary. Remark that this class doesn't cover the
+ * complete XMP specification.
+ */
+public class XmpWriter {
+
+ /** A possible charset for the XMP. */
+ public static final String UTF8 = "UTF-8";
+ /** A possible charset for the XMP. */
+ public static final String UTF16 = "UTF-16";
+ /** A possible charset for the XMP. */
+ public static final String UTF16BE = "UTF-16BE";
+ /** A possible charset for the XMP. */
+ public static final String UTF16LE = "UTF-16LE";
+
+ /** String used to fill the extra space. */
+ public static final String EXTRASPACE = " \n";
+
+ /** You can add some extra space in the XMP packet; 1 unit in this variable represents 100 spaces and a newline. */
+ protected int extraSpace;
+
+ /** The writer to which you can write bytes for the XMP stream. */
+ protected OutputStreamWriter writer;
+
+ /** The about string that goes into the rdf:Description tags. */
+ protected String about;
+
+ /** The end attribute. */
+ protected char end = 'w';
+
+ /**
+ * Creates an XmpWriter.
+ * @param os
+ * @param utfEncoding
+ * @param extraSpace
+ * @throws IOException
+ */
+ public XmpWriter(OutputStream os, String utfEncoding, int extraSpace) throws IOException {
+ this.extraSpace = extraSpace;
+ writer = new OutputStreamWriter(os, utfEncoding);
+ writer.write("<?xpacket begin='\uFEFF' id='W5M0MpCehiHzreSzNTczkc9d' ?>\n");
+ writer.write("<x:xmpmeta xmlns:x='adobe:ns:meta/'>\n");
+ writer.write("<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>\n");
+ about = "";
+ }
+
+ /**
+ * Creates an XmpWriter.
+ * @param os
+ * @throws IOException
+ */
+ public XmpWriter(OutputStream os) throws IOException {
+ this(os, UTF8, 20);
+ }
+
+ /** Sets the XMP to read-only */
+ public void setReadOnly() {
+ end = 'r';
+ }
+
+ /**
+ * @param about The about to set.
+ */
+ public void setAbout(String about) {
+ this.about = about;
+ }
+
+ /**
+ * Adds an rdf:Description.
+ * @param xmlns
+ * @param content
+ * @throws IOException
+ */
+ public void addRdfDescription(String xmlns, String content) throws IOException {
+ writer.write("<rdf:Description rdf:about='");
+ writer.write(about);
+ writer.write("' ");
+ writer.write(xmlns);
+ writer.write(">");
+ writer.write(content);
+ writer.write("</rdf:Description>\n");
+ }
+
+ /**
+ * Adds an rdf:Description.
+ * @param s
+ * @throws IOException
+ */
+ public void addRdfDescription(XmpSchema s) throws IOException {
+ writer.write("<rdf:Description rdf:about='");
+ writer.write(about);
+ writer.write("' ");
+ writer.write(s.getXmlns());
+ writer.write(">");
+ writer.write(s.toString());
+ writer.write("</rdf:Description>\n");
+ }
+
+ /**
+ * Flushes and closes the XmpWriter.
+ * @throws IOException
+ */
+ public void close() throws IOException {
+ writer.write("</rdf:RDF>");
+ writer.write("</x:xmpmeta>\n");
+ for (int i = 0; i < extraSpace; i++) {
+ writer.write(EXTRASPACE);
+ }
+ writer.write("<?xpacket ends='" + end + "' ?>");
+ writer.flush();
+ writer.close();
+ }
+
+ /**
+ * @param os
+ * @param info
+ * @throws IOException
+ */
+ public XmpWriter(OutputStream os, PdfDictionary info) throws IOException {
+ this(os);
+ if (info != null) {
+ DublinCoreSchema dc = new DublinCoreSchema();
+ PdfSchema p = new PdfSchema();
+ XmpBasicSchema basic = new XmpBasicSchema();
+ PdfName key;
+ PdfObject obj;
+ for (Iterator it = info.getKeys().iterator(); it.hasNext();) {
+ key = (PdfName)it.next();
+ obj = info.get(key);
+ if (obj == null)
+ continue;
+ if (PdfName.TITLE.equals(key)) {
+ dc.addTitle(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.AUTHOR.equals(key)) {
+ dc.addAuthor(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.SUBJECT.equals(key)) {
+ dc.addSubject(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.KEYWORDS.equals(key)) {
+ p.addKeywords(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.CREATOR.equals(key)) {
+ basic.addCreatorTool(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.PRODUCER.equals(key)) {
+ p.addProducer(((PdfString)obj).toUnicodeString());
+ }
+ if (PdfName.CREATIONDATE.equals(key)) {
+ basic.addCreateDate(((PdfDate)obj).getW3CDate());
+ }
+ if (PdfName.MODDATE.equals(key)) {
+ basic.addModDate(((PdfDate)obj).getW3CDate());
+ }
+ }
+ if (dc.size() > 0) addRdfDescription(dc);
+ if (p.size() > 0) addRdfDescription(p);
+ if (basic.size() > 0) addRdfDescription(basic);
+ }
+ }
+
+ /**
+ * @param os
+ * @param info
+ * @throws IOException
+ */
+ public XmpWriter(OutputStream os, Map info) throws IOException {
+ this(os);
+ if (info != null) {
+ DublinCoreSchema dc = new DublinCoreSchema();
+ PdfSchema p = new PdfSchema();
+ XmpBasicSchema basic = new XmpBasicSchema();
+ String key;
+ String value;
+ for (Iterator it = info.keySet().iterator(); it.hasNext();) {
+ key = (String)it.next();
+ value = (String)info.get(key);
+ if (value == null)
+ continue;
+ if ("Title".equals(key)) {
+ dc.addTitle(value);
+ }
+ if ("Author".equals(key)) {
+ dc.addAuthor(value);
+ }
+ if ("Subject".equals(key)) {
+ dc.addSubject(value);
+ }
+ if ("Keywords".equals(key)) {
+ p.addKeywords(value);
+ }
+ if ("Creator".equals(key)) {
+ basic.addCreatorTool(value);
+ }
+ if ("Producer".equals(key)) {
+ p.addProducer(value);
+ }
+ if ("CreationDate".equals(key)) {
+ basic.addCreateDate(PdfDate.getW3CDate(value));
+ }
+ if ("ModDate".equals(key)) {
+ basic.addModDate(PdfDate.getW3CDate(value));
+ }
+ }
+ if (dc.size() > 0) addRdfDescription(dc);
+ if (p.size() > 0) addRdfDescription(p);
+ if (basic.size() > 0) addRdfDescription(basic);
+ }
+ }
+}
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