diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/FdfReader.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/FdfReader.java | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/FdfReader.java b/src/main/java/com/lowagie/text/pdf/FdfReader.java new file mode 100644 index 0000000..7a846fe --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/FdfReader.java @@ -0,0 +1,214 @@ +/*
+ * Copyright 2003 by Paulo Soares.
+ *
+ * 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.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.net.URL;
+/** Reads an FDF form and makes the fields available
+ * @author Paulo Soares (psoares@consiste.pt)
+ */
+public class FdfReader extends PdfReader {
+
+ HashMap fields;
+ String fileSpec;
+ PdfName encoding;
+
+ /** Reads an FDF form.
+ * @param filename the file name of the form
+ * @throws IOException on error
+ */
+ public FdfReader(String filename) throws IOException {
+ super(filename);
+ }
+
+ /** Reads an FDF form.
+ * @param pdfIn the byte array with the form
+ * @throws IOException on error
+ */
+ public FdfReader(byte pdfIn[]) throws IOException {
+ super(pdfIn);
+ }
+
+ /** Reads an FDF form.
+ * @param url the URL of the document
+ * @throws IOException on error
+ */
+ public FdfReader(URL url) throws IOException {
+ super(url);
+ }
+
+ /** Reads an FDF form.
+ * @param is the <CODE>InputStream</CODE> containing the document. The stream is read to the
+ * end but is not closed
+ * @throws IOException on error
+ */
+ public FdfReader(InputStream is) throws IOException {
+ super(is);
+ }
+
+ protected void readPdf() throws IOException {
+ fields = new HashMap();
+ try {
+ tokens.checkFdfHeader();
+ rebuildXref();
+ readDocObj();
+ }
+ finally {
+ try {
+ tokens.close();
+ }
+ catch (Exception e) {
+ // empty on purpose
+ }
+ }
+ readFields();
+ }
+
+ protected void kidNode(PdfDictionary merged, String name) {
+ PdfArray kids = (PdfArray)getPdfObject(merged.get(PdfName.KIDS));
+ if (kids == null || kids.getArrayList().size() == 0) {
+ if (name.length() > 0)
+ name = name.substring(1);
+ fields.put(name, merged);
+ }
+ else {
+ merged.remove(PdfName.KIDS);
+ ArrayList ar = kids.getArrayList();
+ for (int k = 0; k < ar.size(); ++k) {
+ PdfDictionary dic = new PdfDictionary();
+ dic.merge(merged);
+ PdfDictionary newDic = (PdfDictionary)getPdfObject((PdfObject)ar.get(k));
+ PdfString t = (PdfString)getPdfObject(newDic.get(PdfName.T));
+ String newName = name;
+ if (t != null)
+ newName += "." + t.toUnicodeString();
+ dic.merge(newDic);
+ dic.remove(PdfName.T);
+ kidNode(dic, newName);
+ }
+ }
+ }
+
+ protected void readFields() throws IOException {
+ catalog = (PdfDictionary)getPdfObject(trailer.get(PdfName.ROOT));
+ PdfDictionary fdf = (PdfDictionary)getPdfObject(catalog.get(PdfName.FDF));
+ PdfString fs = (PdfString)getPdfObject(fdf.get(PdfName.F));
+ if (fs != null)
+ fileSpec = fs.toUnicodeString();
+ PdfArray fld = (PdfArray)getPdfObject(fdf.get(PdfName.FIELDS));
+ if (fld == null)
+ return;
+ encoding = (PdfName)getPdfObject(fdf.get(PdfName.ENCODING));
+ PdfDictionary merged = new PdfDictionary();
+ merged.put(PdfName.KIDS, fld);
+ kidNode(merged, "");
+ }
+
+ /** 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 dictionary.
+ * @param name the fully qualified field name
+ * @return the field dictionary
+ */
+ public PdfDictionary getField(String name) {
+ return (PdfDictionary)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) {
+ PdfDictionary field = (PdfDictionary)fields.get(name);
+ if (field == null)
+ return null;
+ PdfObject v = getPdfObject(field.get(PdfName.V));
+ if (v == null)
+ return null;
+ if (v.isName())
+ return PdfName.decodeName(((PdfName)v).toString());
+ else if (v.isString()) {
+ PdfString vs = (PdfString)v;
+ if (encoding == null || vs.getEncoding() != null)
+ return vs.toUnicodeString();
+ byte b[] = vs.getBytes();
+ if (b.length >= 2 && b[0] == (byte)254 && b[1] == (byte)255)
+ return vs.toUnicodeString();
+ try {
+ if (encoding.equals(PdfName.SHIFT_JIS))
+ return new String(b, "SJIS");
+ else if (encoding.equals(PdfName.UHC))
+ return new String(b, "MS949");
+ else if (encoding.equals(PdfName.GBK))
+ return new String(b, "GBK");
+ else if (encoding.equals(PdfName.BIGFIVE))
+ return new String(b, "Big5");
+ }
+ catch (Exception e) {
+ }
+ return vs.toUnicodeString();
+ }
+ return null;
+ }
+
+ /** Gets the PDF file specification contained in the FDF.
+ * @return the PDF file specification contained in the FDF
+ */
+ public String getFileSpec() {
+ return fileSpec;
+ }
+}
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