What Is poi-scratchpad-5.2.3.jar?

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
Dependency: 
   poi.jar

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:

⏎ org/apache/poi/hdgf/streams/ChunkStream.java

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

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hdgf.streams;

import java.util.ArrayList;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.poi.hdgf.chunks.Chunk;
import org.apache.poi.hdgf.chunks.ChunkFactory;
import org.apache.poi.hdgf.chunks.ChunkHeader;
import org.apache.poi.hdgf.pointers.Pointer;

import static org.apache.logging.log4j.util.Unbox.box;

public final class ChunkStream extends Stream {
    private static final Logger LOG = LogManager.getLogger(ChunkStream.class);

    private final ChunkFactory chunkFactory;
    /** All the Chunks we contain */
    private Chunk[] chunks;

    ChunkStream(Pointer pointer, StreamStore store, ChunkFactory chunkFactory) {
        super(pointer, store);
        this.chunkFactory = chunkFactory;

        // For compressed stores, we require all of the data
        store.copyBlockHeaderToContents();
    }

    public Chunk[] getChunks() { return chunks; }

    /**
     * Process the contents of the stream out into chunks
     */
    public void findChunks() {
        ArrayList<Chunk> chunksA = new ArrayList<>();

        if(getPointer().getOffset() == 0x64b3) {
            int i = 0;
            i++;
        }

        int pos = 0;
        byte[] contents = getStore().getContents();
        try {
            while(pos < contents.length) {
                // Ensure we have enough data to create a chunk from
                int headerSize = ChunkHeader.getHeaderSize(chunkFactory.getVersion());
                if(pos+headerSize <= contents.length) {
                    Chunk chunk = chunkFactory.createChunk(contents, pos);
                    chunksA.add(chunk);

                    pos += chunk.getOnDiskSize();
                } else {
                    LOG.atWarn().log("Needed {} bytes to create the next chunk header, but only found {} bytes, ignoring rest of data", box(headerSize),box(contents.length - pos));
                    pos = contents.length;
                }
            }
        }
        catch (Exception e)
        {
            LOG.atError().withThrowable(e).log("Failed to create chunk at {}, ignoring rest of data.", box(pos));
        }

        chunks = chunksA.toArray(new Chunk[0]);
    }
}

⏎ org/apache/poi/hdgf/streams/ChunkStream.java

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
Download 

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