PdfStamper.java
| Index Score | ||
|---|---|---|
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com.lowagie.text.pdf |
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iText |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| DOC_COMMENT | Number of javadoc comment lines |  |
| COMMENTS | Comment lines | |
| DECL_COMMENTS | Comments in declarations | |
| PARAMS | Number of formal parameter declarations | |
| SIZE | Size of the file in bytes | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| RETURNS | Number of return points from functions | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| FUNCTIONS | Number of function declarations | |
| LINES | Number of lines in the source file | |
| EXITS | Procedure exits | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LINE_COMMENT | Number of line comments | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| COMPARISONS | Number of comparison operators | |
| JAVA0067 | JAVA0067 Array descriptor on identifier name | |
| LOOPS | Number of loops | |
| OPERANDS | Number of operands | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| UNIQUE_OPERATORS | Number of unique operators | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* Copyright 2003, 2004 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.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.SignatureException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.lowagie.text.DocWriter;
import com.lowagie.text.DocumentException;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.Image;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.collection.PdfCollection;
import com.lowagie.text.pdf.interfaces.PdfEncryptionSettings;
import com.lowagie.text.pdf.interfaces.PdfViewerPreferences;
import java.security.cert.Certificate;
/** Applies extra content to the pages of a PDF document.
* This extra content can be all the objects allowed in PdfContentByte
* including pages from other Pdfs. The original PDF will keep
* all the interactive elements including bookmarks, links and form fields.
* <p>
* It is also possible to change the field values and to
* flatten them. New fields can be added but not flattened.
* @author Paulo Soares (psoares@consiste.pt)
*/
public class PdfStamper
implements PdfViewerPreferences, PdfEncryptionSettings {
/**
* The writer
*/
protected PdfStamperImp stamper;
private HashMap moreInfo;
private boolean hasSignature;
private PdfSignatureAppearance sigApp;
/** Starts the process of adding extra content to an existing PDF
* document.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, OutputStream os) throws DocumentException, IOException {
stamper = new PdfStamperImp(reader, os, '\0', false);
}
/**
* Starts the process of adding extra content to an existing PDF
* document.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, OutputStream os, char pdfVersion) throws DocumentException, IOException {
stamper = new PdfStamperImp(reader, os, pdfVersion, false);
}
/**
* Starts the process of adding extra content to an existing PDF
* document, possibly as a new revision.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param append if <CODE>true</CODE> appends the document changes as a new revision. This is
* only useful for multiple signatures as nothing is gained in speed or memory
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, OutputStream os, char pdfVersion, boolean append) throws DocumentException, IOException {
stamper = new PdfStamperImp(reader, os, pdfVersion, append);
}
/** Gets the optional <CODE>String</CODE> map to add or change values in
* the info dictionary.
* @return the map or <CODE>null</CODE>
*
*/
public HashMap getMoreInfo() {
return this.moreInfo;
}
/** An optional <CODE>String</CODE> map to add or change values in
* the info dictionary. Entries with <CODE>null</CODE>
* values delete the key in the original info dictionary
* @param moreInfo additional entries to the info dictionary
*
*/
public void setMoreInfo(HashMap moreInfo) {
this.moreInfo = moreInfo;
}
/**
* Replaces a page from this document with a page from other document. Only the content
* is replaced not the fields and annotations. This method must be called before
* getOverContent() or getUndercontent() are called for the same page.
* @param r the <CODE>PdfReader</CODE> from where the new page will be imported
* @param pageImported the page number of the imported page
* @param pageReplaced the page to replace in this document
* @since iText 2.1.1
*/
public void replacePage(PdfReader r, int pageImported, int pageReplaced) {
stamper.replacePage(r, pageImported, pageReplaced);
}
/**
* Inserts a blank page. All the pages above and including <CODE>pageNumber</CODE> will
* be shifted up. If <CODE>pageNumber</CODE> is bigger than the total number of pages
* the new page will be the last one.
* @param pageNumber the page number position where the new page will be inserted
* @param mediabox the size of the new page
*/
public void insertPage(int pageNumber, Rectangle mediabox) {
stamper.insertPage(pageNumber, mediabox);
}
/**
* Gets the signing instance. The appearances and other parameters can the be set.
* @return the signing instance
*/
public PdfSignatureAppearance getSignatureAppearance() {
return sigApp;
}
/**
* Closes the document. No more content can be written after the
* document is closed.
* <p>
* If closing a signed document with an external signature the closing must be done
* in the <CODE>PdfSignatureAppearance</CODE> instance.
* @throws DocumentException on error
* @throws IOException on error
*/
public void close() throws DocumentException, IOException {
if (!hasSignature) {
stamper.close(moreInfo);
return;
}
sigApp.preClose();
PdfSigGenericPKCS sig = sigApp.getSigStandard();
PdfLiteral lit = (PdfLiteral)sig.get(PdfName.CONTENTS);
int totalBuf = (lit.getPosLength() - 2) / 2;
byte buf[] = new byte[8192];
int n;
InputStream inp = sigApp.getRangeStream();
try {
while ((n = inp.read(buf)) > 0) {
sig.getSigner().update(buf, 0, n);
}
}
catch (SignatureException se) {
throw new ExceptionConverter(se);
}
buf = new byte[totalBuf];
byte[] bsig = sig.getSignerContents();
System.arraycopy(bsig, 0, buf, 0, bsig.length);
PdfString str = new PdfString(buf);
str.setHexWriting(true);
PdfDictionary dic = new PdfDictionary();
dic.put(PdfName.CONTENTS, str);
sigApp.close(dic);
stamper.reader.close();
}
/** Gets a <CODE>PdfContentByte</CODE> to write under the page of
* the original document.
* @param pageNum the page number where the extra content is written
* @return a <CODE>PdfContentByte</CODE> to write under the page of
* the original document
*/
public PdfContentByte getUnderContent(int pageNum) {
return stamper.getUnderContent(pageNum);
}
/** Gets a <CODE>PdfContentByte</CODE> to write over the page of
* the original document.
* @param pageNum the page number where the extra content is written
* @return a <CODE>PdfContentByte</CODE> to write over the page of
* the original document
*/
public PdfContentByte getOverContent(int pageNum) {
return stamper.getOverContent(pageNum);
}
/** Checks if the content is automatically adjusted to compensate
* the original page rotation.
* @return the auto-rotation status
*/
public boolean isRotateContents() {
return stamper.isRotateContents();
}
/** Flags the content to be automatically adjusted to compensate
* the original page rotation. The default is <CODE>true</CODE>.
* @param rotateContents <CODE>true</CODE> to set auto-rotation, <CODE>false</CODE>
* otherwise
*/
public void setRotateContents(boolean rotateContents) {
stamper.setRotateContents(rotateContents);
}
/** Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @param strength128Bits <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length
* @throws DocumentException if anything was already written to the output
*/
public void setEncryption(byte userPassword[], byte ownerPassword[], int permissions, boolean strength128Bits) throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(userPassword, ownerPassword, permissions, strength128Bits ? PdfWriter.STANDARD_ENCRYPTION_128 : PdfWriter.STANDARD_ENCRYPTION_40);
}
/** Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
* Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
* @throws DocumentException if the document is already open
*/
public void setEncryption(byte userPassword[], byte ownerPassword[], int permissions, int encryptionType) throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(userPassword, ownerPassword, permissions, encryptionType);
}
/**
* Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param strength <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @throws DocumentException if anything was already written to the output
*/
public void setEncryption(boolean strength, String userPassword, String ownerPassword, int permissions) throws DocumentException {
setEncryption(DocWriter.getISOBytes(userPassword), DocWriter.getISOBytes(ownerPassword), permissions, strength);
}
/**
* Sets the encryption options for this document. The userPassword and the
* ownerPassword can be null or have zero length. In this case the ownerPassword
* is replaced by a random string. The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
* Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @throws DocumentException if anything was already written to the output
*/
public void setEncryption(int encryptionType, String userPassword, String ownerPassword, int permissions) throws DocumentException {
setEncryption(DocWriter.getISOBytes(userPassword), DocWriter.getISOBytes(ownerPassword), permissions, encryptionType);
}
/**
* Sets the certificate encryption options for this document. An array of one or more public certificates
* must be provided together with an array of the same size for the permissions for each certificate.
* The open permissions for the document can be
* AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
* AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
* The permissions can be combined by ORing them.
* Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
* @param certs the public certificates to be used for the encryption
* @param permissions the user permissions for each of the certificates
* @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
* @throws DocumentException if the encryption was set too late
*/
public void setEncryption(Certificate[] certs, int[] permissions, int encryptionType) throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(certs, permissions, encryptionType);
}
/** Gets a page from other PDF document. Note that calling this method more than
* once with the same parameters will retrieve the same object.
* @param reader the PDF document where the page is
* @param pageNumber the page number. The first page is 1
* @return the template representing the imported page
*/
public PdfImportedPage getImportedPage(PdfReader reader, int pageNumber) {
return stamper.getImportedPage(reader, pageNumber);
}
/** Gets the underlying PdfWriter.
* @return the underlying PdfWriter
*/
public PdfWriter getWriter() {
return stamper;
}
/** Gets the underlying PdfReader.
* @return the underlying PdfReader
*/
public PdfReader getReader() {
return stamper.reader;
}
/** Gets the <CODE>AcroFields</CODE> object that allows to get and set field values
* and to merge FDF forms.
* @return the <CODE>AcroFields</CODE> object
*/
public AcroFields getAcroFields() {
return stamper.getAcroFields();
}
/** Determines if the fields are flattened on close. The fields added with
* {@link #addAnnotation(PdfAnnotation,int)} will never be flattened.
* @param flat <CODE>true</CODE> to flatten the fields, <CODE>false</CODE>
* to keep the fields
*/
public void setFormFlattening(boolean flat) {
stamper.setFormFlattening(flat);
}
/** Determines if the FreeText annotations are flattened on close.
* @param flat <CODE>true</CODE> to flatten the FreeText annotations, <CODE>false</CODE>
* (the default) to keep the FreeText annotations as active content.
*/
public void setFreeTextFlattening(boolean flat) {
stamper.setFreeTextFlattening(flat);
}
/**
* Adds an annotation of form field in a specific page. This page number
* can be overridden with {@link PdfAnnotation#setPlaceInPage(int)}.
* @param annot the annotation
* @param page the page
*/
public void addAnnotation(PdfAnnotation annot, int page) {
stamper.addAnnotation(annot, page);
}
/**
* Adds the comments present in an FDF file.
* @param fdf the FDF file
* @throws IOException on error
*/
public void addComments(FdfReader fdf) throws IOException {
stamper.addComments(fdf);
}
/**
* Sets the bookmarks. The list structure is defined in
* {@link SimpleBookmark}.
* @param outlines the bookmarks or <CODE>null</CODE> to remove any
*/
public void setOutlines(List outlines) {
stamper.setOutlines(outlines);
}
/**
* Sets the thumbnail image for a page.
* @param image the image
* @param page the page
* @throws PdfException on error
* @throws DocumentException on error
*/
public void setThumbnail(Image image, int page) throws PdfException, DocumentException {
stamper.setThumbnail(image, page);
}
/**
* Adds <CODE>name</CODE> to the list of fields that will be flattened on close,
* all the other fields will remain. If this method is never called or is called
* with invalid field names, all the fields will be flattened.
* <p>
* Calling <CODE>setFormFlattening(true)</CODE> is needed to have any kind of
* flattening.
* @param name the field name
* @return <CODE>true</CODE> if the field exists, <CODE>false</CODE> otherwise
*/
public boolean partialFormFlattening(String name) {
return stamper.partialFormFlattening(name);
}
/** Adds a JavaScript action at the document level. When the document
* opens all this JavaScript runs. The existing JavaScript will be replaced.
* @param js the JavaScript code
*/
public void addJavaScript(String js) {
stamper.addJavaScript(js, !PdfEncodings.isPdfDocEncoding(js));
}
/** Adds a file attachment at the document level. Existing attachments will be kept.
* @param description the file description
* @param fileStore an array with the file. If it's <CODE>null</CODE>
* the file will be read from the disk
* @param file the path to the file. It will only be used if
* <CODE>fileStore</CODE> is not <CODE>null</CODE>
* @param fileDisplay the actual file name stored in the pdf
* @throws IOException on error
*/
public void addFileAttachment(String description, byte fileStore[], String file, String fileDisplay) throws IOException {
addFileAttachment(description, PdfFileSpecification.fileEmbedded(stamper, file, fileDisplay, fileStore));
}
/** Adds a file attachment at the document level. Existing attachments will be kept.
* @param description the file description
* @param fs the file specification
*/
public void addFileAttachment(String description, PdfFileSpecification fs) throws IOException {
stamper.addFileAttachment(description, fs);
}
/**
* This is the most simple way to change a PDF into a
* portable collection. Choose one of the following names:
* <ul>
* <li>PdfName.D (detailed view)
* <li>PdfName.T (tiled view)
* <li>PdfName.H (hidden)
* </ul>
* Pass this name as a parameter and your PDF will be
* a portable collection with all the embedded and
* attached files as entries.
* @param initialView can be PdfName.D, PdfName.T or PdfName.H
*/
public void makePackage( PdfName initialView ) {
PdfCollection collection = new PdfCollection(0);
collection.put(PdfName.VIEW, initialView);
stamper.makePackage( collection );
}
/**
* Adds or replaces the Collection Dictionary in the Catalog.
* @param collection the new collection dictionary.
*/
public void makePackage(PdfCollection collection) {
stamper.makePackage(collection);
}
/**
* Sets the viewer preferences.
* @param preferences the viewer preferences
* @see PdfViewerPreferences#setViewerPreferences(int)
*/
public void setViewerPreferences(int preferences) {
stamper.setViewerPreferences(preferences);
}
/** Adds a viewer preference
* @param key a key for a viewer preference
* @param value the value for the viewer preference
* @see PdfViewerPreferences#addViewerPreference
*/
public void addViewerPreference(PdfName key, PdfObject value) {
stamper.addViewerPreference(key, value);
}
/**
* Sets the XMP metadata.
* @param xmp
* @see PdfWriter#setXmpMetadata(byte[])
*/
public void setXmpMetadata(byte[] xmp) {
stamper.setXmpMetadata(xmp);
}
/**
* Gets the 1.5 compression status.
* @return <code>true</code> if the 1.5 compression is on
*/
public boolean isFullCompression() {
return stamper.isFullCompression();
}
/**
* Sets the document's compression to the new 1.5 mode with object streams and xref
* streams. It can be set at any time but once set it can't be unset.
*/
public void setFullCompression() {
if (stamper.isAppend())
return;
stamper.setFullCompression();
}
/**
* Sets the open and close page additional action.
* @param actionType the action type. It can be <CODE>PdfWriter.PAGE_OPEN</CODE>
* or <CODE>PdfWriter.PAGE_CLOSE</CODE>
* @param action the action to perform
* @param page the page where the action will be applied. The first page is 1
* @throws PdfException if the action type is invalid
*/
public void setPageAction(PdfName actionType, PdfAction action, int page) throws PdfException {
stamper.setPageAction(actionType, action, page);
}
/**
* Sets the display duration for the page (for presentations)
* @param seconds the number of seconds to display the page. A negative value removes the entry
* @param page the page where the duration will be applied. The first page is 1
*/
public void setDuration(int seconds, int page) {
stamper.setDuration(seconds, page);
}
/**
* Sets the transition for the page
* @param transition the transition object. A <code>null</code> removes the transition
* @param page the page where the transition will be applied. The first page is 1
*/
public void setTransition(PdfTransition transition, int page) {
stamper.setTransition(transition, page);
}
/**
* Applies a digital signature to a document, possibly as a new revision, making
* possible multiple signatures. The returned PdfStamper
* can be used normally as the signature is only applied when closing.
* <p>
* A possible use for adding a signature without invalidating an existing one is:
* <p>
* <pre>
* KeyStore ks = KeyStore.getInstance("pkcs12");
* ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
* String alias = (String)ks.aliases().nextElement();
* PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
* Certificate[] chain = ks.getCertificateChain(alias);
* PdfReader reader = new PdfReader("original.pdf");
* FileOutputStream fout = new FileOutputStream("signed.pdf");
* PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0', new
* File("/temp"), true);
* PdfSignatureAppearance sap = stp.getSignatureAppearance();
* sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
* sap.setReason("I'm the author");
* sap.setLocation("Lisbon");
* // comment next line to have an invisible signature
* sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
* stp.close();
* </pre>
* @param reader the original document
* @param os the output stream or <CODE>null</CODE> to keep the document in the temporary file
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param tempFile location of the temporary file. If it's a directory a temporary file will be created there.
* If it's a file it will be used directly. The file will be deleted on exit unless <CODE>os</CODE> is null.
* In that case the document can be retrieved directly from the temporary file. If it's <CODE>null</CODE>
* no temporary file will be created and memory will be used
* @param append if <CODE>true</CODE> the signature and all the other content will be added as a
* new revision thus not invalidating existing signatures
* @return a <CODE>PdfStamper</CODE>
* @throws DocumentException on error
* @throws IOException on error
*/
public static PdfStamper createSignature(PdfReader reader, OutputStream os, char pdfVersion, File tempFile, boolean append) throws DocumentException, IOException {
PdfStamper stp;
if (tempFile == null) {
ByteBuffer bout = new ByteBuffer();
stp = new PdfStamper(reader, bout, pdfVersion, append);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.setSigout(bout);
}
else {
if (tempFile.isDirectory())
tempFile = File.createTempFile("pdf", null, tempFile);
FileOutputStream fout = new FileOutputStream(tempFile);
stp = new PdfStamper(reader, fout, pdfVersion, append);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
stp.sigApp.setTempFile(tempFile);
}
stp.sigApp.setOriginalout(os);
stp.sigApp.setStamper(stp);
stp.hasSignature = true;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), catalog);
if (acroForm != null) {
acroForm.remove(PdfName.NEEDAPPEARANCES);
stp.stamper.markUsed(acroForm);
}
return stp;
}
/**
* Applies a digital signature to a document. The returned PdfStamper
* can be used normally as the signature is only applied when closing.
* <p>
* Note that the pdf is created in memory.
* <p>
* A possible use is:
* <p>
* <pre>
* KeyStore ks = KeyStore.getInstance("pkcs12");
* ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
* String alias = (String)ks.aliases().nextElement();
* PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
* Certificate[] chain = ks.getCertificateChain(alias);
* PdfReader reader = new PdfReader("original.pdf");
* FileOutputStream fout = new FileOutputStream("signed.pdf");
* PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0');
* PdfSignatureAppearance sap = stp.getSignatureAppearance();
* sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
* sap.setReason("I'm the author");
* sap.setLocation("Lisbon");
* // comment next line to have an invisible signature
* sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
* stp.close();
* </pre>
* @param reader the original document
* @param os the output stream
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @throws DocumentException on error
* @throws IOException on error
* @return a <CODE>PdfStamper</CODE>
*/
public static PdfStamper createSignature(PdfReader reader, OutputStream os, char pdfVersion) throws DocumentException, IOException {
return createSignature(reader, os, pdfVersion, null, false);
}
/**
* Applies a digital signature to a document. The returned PdfStamper
* can be used normally as the signature is only applied when closing.
* <p>
* A possible use is:
* <p>
* <pre>
* KeyStore ks = KeyStore.getInstance("pkcs12");
* ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
* String alias = (String)ks.aliases().nextElement();
* PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
* Certificate[] chain = ks.getCertificateChain(alias);
* PdfReader reader = new PdfReader("original.pdf");
* FileOutputStream fout = new FileOutputStream("signed.pdf");
* PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0', new File("/temp"));
* PdfSignatureAppearance sap = stp.getSignatureAppearance();
* sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
* sap.setReason("I'm the author");
* sap.setLocation("Lisbon");
* // comment next line to have an invisible signature
* sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
* stp.close();
* </pre>
* @param reader the original document
* @param os the output stream or <CODE>null</CODE> to keep the document in the temporary file
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param tempFile location of the temporary file. If it's a directory a temporary file will be created there.
* If it's a file it will be used directly. The file will be deleted on exit unless <CODE>os</CODE> is null.
* In that case the document can be retrieved directly from the temporary file. If it's <CODE>null</CODE>
* no temporary file will be created and memory will be used
* @return a <CODE>PdfStamper</CODE>
* @throws DocumentException on error
* @throws IOException on error
*/
public static PdfStamper createSignature(PdfReader reader, OutputStream os, char pdfVersion, File tempFile) throws DocumentException, IOException
{
return createSignature(reader, os, pdfVersion, tempFile, false);
}
/**
* Gets the PdfLayer objects in an existing document as a Map
* with the names/titles of the layers as keys.
* @return a Map with all the PdfLayers in the document (and the name/title of the layer as key)
* @since 2.1.2
*/
public Map getPdfLayers() {
return stamper.getPdfLayers();
}
}
The table below shows all metrics for PdfStamper.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 53.00 | Number of blocks | |
| BLOCK_COMMENT | 46.00 | Number of block comment lines | |
| COMMENTS | 459.00 | Comment lines | |
| COMMENT_DENSITY | 2.58 | Comment density | |
| COMPARISONS | 12.00 | Number of comparison operators | |
| CYCLOMATIC | 60.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 49.00 | Comments in declarations | |
| DOC_COMMENT | 413.00 | Number of javadoc comment lines | |
| ELOC | 178.00 | Effective lines of code | |
| EXEC_COMMENTS | 0.00 | Comments in executable code | |
| EXITS | 63.00 | Procedure exits | |
| FUNCTIONS | 46.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 52.24 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 158.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 8.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 1.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 1.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 11.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 14.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 2.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 741.00 | Number of lines in the source file | |
| LINE_COMMENT | 0.00 | Number of line comments | |
| LOC | 232.00 | Lines of code | |
| LOGICAL_LINES | 114.00 | Number of statements | |
| LOOPS | 1.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 653.00 | Number of operands | |
| OPERATORS | 1102.00 | Number of operators | |
| PARAMS | 80.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1755.00 | Halstead program length | |
| PROGRAM_VOCAB | 319.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 78.00 | Number of return points from functions | |
| SIZE | 33422.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 275.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 44.00 | Number of unique operators | |
| WHITESPACE | 50.00 | Number of whitespace lines | |