diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/XfdfReader.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/XfdfReader.java | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/XfdfReader.java b/src/main/java/com/lowagie/text/pdf/XfdfReader.java new file mode 100644 index 0000000..e3a7067 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/XfdfReader.java @@ -0,0 +1,208 @@ +/*
+ *
+ * Copyright 2004 by Leonard Rosenthol.
+ *
+ * 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, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 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.pdf;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.FileInputStream;
+import java.util.HashMap;
+import java.util.Stack;
+
+/**
+ * Reads a XFDF.
+ * @author Leonard Rosenthol (leonardr@pdfsages.com)
+ */
+public class XfdfReader implements SimpleXMLDocHandler {
+ // stuff used during parsing to handle state
+ private boolean foundRoot = false;
+ private Stack fieldNames = new Stack();
+ private Stack fieldValues = new Stack();
+
+ // storage for the field list and their values
+ HashMap fields;
+
+ // storage for the path to referenced PDF, if any
+ String fileSpec;
+
+ /** Reads an XFDF form.
+ * @param filename the file name of the form
+ * @throws IOException on error
+ */
+ public XfdfReader(String filename) throws IOException {
+ FileInputStream fin = null;
+ try {
+ fin = new FileInputStream(filename);
+ SimpleXMLParser.parse(this, fin);
+ }
+ finally {
+ try{fin.close();}catch(Exception e){}
+ }
+ }
+
+ /** Reads an XFDF form.
+ * @param xfdfIn the byte array with the form
+ * @throws IOException on error
+ */
+ public XfdfReader(byte xfdfIn[]) throws IOException {
+ SimpleXMLParser.parse( this, new ByteArrayInputStream(xfdfIn));
+ }
+
+ /** Gets all the fields. The map is keyed by the fully qualified
+ * field name and the value is a merged <CODE>PdfDictionary</CODE>
+ * with the field content.
+ * @return all the fields
+ */
+ public HashMap getFields() {
+ return fields;
+ }
+
+ /** Gets the field value.
+ * @param name the fully qualified field name
+ * @return the field's value
+ */
+ public String getField(String name) {
+ return (String)fields.get(name);
+ }
+
+ /** Gets the field value or <CODE>null</CODE> if the field does not
+ * exist or has no value defined.
+ * @param name the fully qualified field name
+ * @return the field value or <CODE>null</CODE>
+ */
+ public String getFieldValue(String name) {
+ String field = (String)fields.get(name);
+ if (field == null)
+ return null;
+ else
+ return field;
+ }
+
+ /** Gets the PDF file specification contained in the FDF.
+ * @return the PDF file specification contained in the FDF
+ */
+ public String getFileSpec() {
+ return fileSpec;
+ }
+
+ /**
+ * Called when a start tag is found.
+ * @param tag the tag name
+ * @param h the tag's attributes
+ */
+ public void startElement(String tag, HashMap h)
+ {
+ if ( !foundRoot ) {
+ if (!tag.equals("xfdf"))
+ throw new RuntimeException("Root element is not Bookmark.");
+ else
+ foundRoot = true;
+ }
+
+ if ( tag.equals("xfdf") ){
+
+ } else if ( tag.equals("f") ) {
+ fileSpec = (String)h.get( "href" );
+ } else if ( tag.equals("fields") ) {
+ fields = new HashMap(); // init it!
+ } else if ( tag.equals("field") ) {
+ String fName = (String) h.get( "name" );
+ fieldNames.push( fName );
+ } else if ( tag.equals("value") ) {
+ fieldValues.push( "" );
+ }
+ }
+ /**
+ * Called when an end tag is found.
+ * @param tag the tag name
+ */
+ public void endElement(String tag) {
+ if ( tag.equals("value") ) {
+ String fName = "";
+ for (int k = 0; k < fieldNames.size(); ++k) {
+ fName += "." + (String)fieldNames.elementAt(k);
+ }
+ if (fName.startsWith("."))
+ fName = fName.substring(1);
+ String fVal = (String) fieldValues.pop();
+ fields.put( fName, fVal );
+ }
+ else if (tag.equals("field") ) {
+ if (!fieldNames.isEmpty())
+ fieldNames.pop();
+ }
+ }
+
+ /**
+ * Called when the document starts to be parsed.
+ */
+ public void startDocument()
+ {
+ fileSpec = new String(""); // and this too...
+ }
+ /**
+ * Called after the document is parsed.
+ */
+ public void endDocument()
+ {
+
+ }
+ /**
+ * Called when a text element is found.
+ * @param str the text element, probably a fragment.
+ */
+ public void text(String str)
+ {
+ if (fieldNames.isEmpty() || fieldValues.isEmpty())
+ return;
+
+ String val = (String)fieldValues.pop();
+ val += str;
+ fieldValues.push(val);
+ }
+}
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