What Is poi-scratchpad-5.2.3.jar?

What Is poi-scratchpad-5.2.3.jar?

✍: FYIcenter.com

poi-scratchpad-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which provides an API for Microsoft document files of Word, Excel, PowerPoint, and Visio.

poi-scratchpad-5.2.3.jar provides support for older versions of Microsoft document files like Word 97, Excel 97, PowerPoint 97, etc.

poi-scratchpad-5.2.3.jar is distributed as part of the poi-bin-5.2.3-20220909.zip download file.

JAR File Size and Download Location:

JAR name: poi-scratchpad-5.2.3.jar
Target JDK version: 9

File name: poi-scratchpad.jar, poi-scratchpad-5.2.3.jar
File size: 1897121 bytes
Release date: 09-09-2022
Download: Apache POI Website

Here are Java Source Code files for poi-scratchpad-5.2.3.jar:


/* ====================================================================
   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


   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hpbf.model;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.input.UnsynchronizedByteArrayInputStream;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.util.IOUtils;

 * Parent class of all HPBF sub-parts, handling
 *  the fiddly reading in / writing out bits
 *  for all of them.
public abstract class HPBFPart {
    private byte[] data;
    private final String[] path;

     * @param path  the path to the part, eg Contents or Quill, QuillSub, CONTENTS
    public HPBFPart(DirectoryNode baseDir, String[] path) throws IOException {
        this.path = path;

        DirectoryNode dir = getDir(baseDir, path);
        String name = path[path.length-1];

        if (!dir.hasEntry(name)) {
            throw new IllegalArgumentException("File invalid - failed to find document entry '" + name + "'");

        // Grab the data from the part stream
        try (InputStream is = dir.createDocumentInputStream(name)) {
            data = IOUtils.toByteArray(is);

    private static DirectoryNode getDir(DirectoryNode baseDir, String[] path) {
        DirectoryNode dir = baseDir;
        for(int i=0; i<path.length-1; i++) {
            try {
                dir = (DirectoryNode)dir.getEntry(path[i]);
            } catch (FileNotFoundException e) {
                throw new IllegalArgumentException("File invalid - failed to find directory entry '"
                        + path[i] + "': " + e);
        return dir;

    public void writeOut(DirectoryNode baseDir) throws IOException {
        String[] path = getPath();

        // Ensure that all parent directories exist
        DirectoryNode dir = baseDir;
        for(int i=0; i<path.length-1; i++) {
            try {
                dir = (DirectoryNode)dir.getEntry(path[i]);
            } catch(FileNotFoundException e) {

        // Update the byte array with the latest data

        // Write out
        try (UnsynchronizedByteArrayInputStream bais = new UnsynchronizedByteArrayInputStream(data)) {
            dir.createDocument(path[path.length-1], bais);

     * Called just before writing out, to trigger
     *  the data byte array to be updated with the
     *  latest contents.
    protected abstract void generateData();

     * Returns the raw data that makes up
     *  this document part.
    public final byte[] getData() {
        return data;

    protected final void setData(byte[] data) {
        this.data = data.clone();

     * Returns
    public final String[] getPath() {
        return path;


Or download all of them as a single archive file:

File name: poi-scratchpad-5.2.3-src.zip
File size: 1238744 bytes
Release date: 2022-09-09


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