Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (101)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (309)
Collections:
Other Resources:
What Is poi-5.2.3.jar?
What Is poi-5.2.3.jar?
✍: FYIcenter.com
poi-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-5.2.3.jar supports Apache POI components that read and write Microsoft's OLE 2 Compound document format, which is used in early versions of Microsoft Office tools like Word 97, Excel 97, PowerPoint 97, etc.
poi-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-5.2.3.jar Target JDK version: 9 File name: poi.jar, poi-5.2.3.jar File size: 2964641 bytes Release date: 09-09-2022 Download: Apache POI Website
Here are Java Source Code files for poi-5.2.3.jar:
⏎ org/apache/poi/ddf/EscherArrayProperty.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.ddf; import java.util.Iterator; import java.util.Map; import java.util.NoSuchElementException; import java.util.Spliterator; import java.util.Spliterators; import java.util.function.Supplier; import java.util.stream.Collectors; import java.util.stream.StreamSupport; import org.apache.poi.util.GenericRecordUtil; import org.apache.poi.util.IOUtils; import org.apache.poi.util.Internal; import org.apache.poi.util.LittleEndian; import org.apache.poi.util.Removal; /** * Escher array properties are the most weird construction ever invented * with all sorts of special cases. I'm hopeful I've got them all. */ public final class EscherArrayProperty extends EscherComplexProperty implements Iterable<byte[]> { // arbitrarily selected; may need to increase private static final int DEFAULT_MAX_RECORD_LENGTH = 100_000; private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH; /** * The size of the header that goes at the start of the array, before the data */ private static final int FIXED_SIZE = 3 * 2; /** * Normally, the size recorded in the simple data (for the complex data) includes the size of the header. * There are a few cases when it doesn't though... */ private boolean sizeIncludesHeaderSize = true; /** * When reading a property from data stream remember if the complex part is empty and set this flag. */ private final boolean emptyComplexPart; /** * @param length the max record length allowed for EscherArrayProperty */ public static void setMaxRecordLength(int length) { MAX_RECORD_LENGTH = length; } /** * @return the max record length allowed for EscherArrayProperty */ public static int getMaxRecordLength() { return MAX_RECORD_LENGTH; } /** * Create an instance of an escher array property. * This constructor can be used to create emptyComplexParts with a complexSize = 0. * Preferably use {@link #EscherArrayProperty(EscherPropertyTypes, boolean, int)} with {@link #setComplexData(byte[])}. * * @param id The id consists of the property number, a flag indicating whether this is a blip id and a flag * indicating that this is a complex property. * @param complexSize the data size */ @Internal public EscherArrayProperty(short id, int complexSize) { // this is called by EscherPropertyFactory which happens to call it with empty parts // if a part is initial empty, don't allow it to contain something again super(id, complexSize); emptyComplexPart = (complexSize == 0); } /** * Create an instance of an escher array property. * This constructor defaults to a 6 bytes header if the complexData is null or byte[0]. * * @param propertyNumber the property number part of the property id * @param isBlipId {@code true}, if it references a blip * @param complexData the data * * @deprecated use {@link #EscherArrayProperty(EscherPropertyTypes, boolean, int)} and {@link #setComplexData(byte[])} */ @Deprecated @Removal(version = "5.0.0") public EscherArrayProperty(short propertyNumber, boolean isBlipId, byte[] complexData) { // this is called by user code, if the complexData is empty/null, allocate a space for a valid header // be aware, that there are complex data areas with less than 6 bytes this((short)(propertyNumber | (isBlipId ? IS_BLIP : 0)), safeSize(complexData == null ? 0 : complexData.length)); setComplexData(complexData); } /** * Create an instance of an escher array property. * This constructor defaults to a 6 bytes header if the complexSize is 0. * * @param type the property type of the property id * @param isBlipId {@code true}, if it references a blip * @param complexSize the data size */ public EscherArrayProperty(EscherPropertyTypes type, boolean isBlipId, int complexSize) { this((short)(type.propNumber | (isBlipId ? IS_BLIP : 0)), safeSize(complexSize)); } private static int safeSize(int complexSize) { // when called by user code, fix the size to be valid for the header return complexSize == 0 ? 6 : complexSize; } public int getNumberOfElementsInArray() { return (emptyComplexPart) ? 0 : LittleEndian.getUShort(getComplexData(), 0); } public void setNumberOfElementsInArray(int numberOfElements) { if (emptyComplexPart) { return; } rewriteArray(numberOfElements, false); LittleEndian.putShort(getComplexData(), 0, (short) numberOfElements); } private void rewriteArray(int numberOfElements, boolean copyToNewLen) { int expectedArraySize = numberOfElements * getActualSizeOfElements(getSizeOfElements()) + FIXED_SIZE; resizeComplexData(expectedArraySize, copyToNewLen ? expectedArraySize : getComplexData().length); } public int getNumberOfElementsInMemory() { return (emptyComplexPart) ? 0 : LittleEndian.getUShort(getComplexData(), 2); } public void setNumberOfElementsInMemory(int numberOfElements) { if (emptyComplexPart) { return; } rewriteArray(numberOfElements, true); LittleEndian.putShort(getComplexData(), 2, (short) numberOfElements); } public short getSizeOfElements() { return (emptyComplexPart) ? 0 : LittleEndian.getShort( getComplexData(), 4 ); } public void setSizeOfElements(int sizeOfElements) { if (emptyComplexPart) { return; } LittleEndian.putShort( getComplexData(), 4, (short) sizeOfElements ); int expectedArraySize = getNumberOfElementsInArray() * getActualSizeOfElements(getSizeOfElements()) + FIXED_SIZE; // Keep just the first 6 bytes. The rest is no good to us anyway. resizeComplexData(expectedArraySize, 6); } public byte[] getElement(int index) { int actualSize = getActualSizeOfElements(getSizeOfElements()); return IOUtils.safelyClone(getComplexData(), FIXED_SIZE + index * actualSize, actualSize, MAX_RECORD_LENGTH); } public void setElement(int index, byte[] element) { if (emptyComplexPart) { return; } int actualSize = getActualSizeOfElements(getSizeOfElements()); System.arraycopy( element, 0, getComplexData(), FIXED_SIZE + index * actualSize, actualSize); } /** * We have this method because the way in which arrays in escher works * is screwed for seemly arbitrary reasons. While most properties are * fairly consistent and have a predictable array size, escher arrays * have special cases. * * @param data The data array containing the escher array information * @param offset The offset into the array to start reading from. * @return the number of bytes used by this complex property. */ public int setArrayData(byte[] data, int offset) { if (emptyComplexPart) { resizeComplexData(0); } else { short numElements = LittleEndian.getShort(data, offset); // LittleEndian.getShort(data, offset + 2); // numReserved short sizeOfElements = LittleEndian.getShort(data, offset + 4); // the code here seems to depend on complexData already being // sized correctly via the constructor int cdLen = getComplexData().length; int arraySize = getActualSizeOfElements(sizeOfElements) * numElements; if (arraySize == cdLen) { // The stored data size in the simple block excludes the header size resizeComplexData(arraySize + 6, 0); sizeIncludesHeaderSize = false; } setComplexData(data, offset); } return getComplexData().length; } /** * Serializes the simple part of this property. ie the first 6 bytes. * * Needs special code to handle the case when the size doesn't * include the size of the header block */ @Override public int serializeSimplePart(byte[] data, int pos) { LittleEndian.putShort(data, pos, getId()); int recordSize = getComplexData().length; if (!sizeIncludesHeaderSize) { recordSize -= 6; } LittleEndian.putInt(data, pos + 2, recordSize); return 6; } /** * Sometimes the element size is stored as a negative number. We * negate it and shift it to get the real value. */ private static int getActualSizeOfElements(short sizeOfElements) { if (sizeOfElements < 0) { return (short) ( ( -sizeOfElements ) >> 2 ); } return sizeOfElements; } @Override public Iterator<byte[]> iterator() { return new Iterator<byte[]>(){ int idx; @Override public boolean hasNext() { return (idx < getNumberOfElementsInArray()); } @Override public byte[] next() { if (!hasNext()) { throw new NoSuchElementException(); } return getElement(idx++); } @Override public void remove() { throw new UnsupportedOperationException("not yet implemented"); } }; } /** * @since POI 5.2.0 */ @Override public Spliterator<byte[]> spliterator() { return Spliterators.spliterator(iterator(), getNumberOfElementsInArray(), 0); } @Override public Map<String, Supplier<?>> getGenericProperties() { return GenericRecordUtil.getGenericProperties( "base", super::getGenericProperties, "numElements", this::getNumberOfElementsInArray, "numElementsInMemory", this::getNumberOfElementsInMemory, "sizeOfElements", this::getSizeOfElements, "elements", () -> StreamSupport.stream(spliterator(), false).collect(Collectors.toList()) ); } }
⏎ org/apache/poi/ddf/EscherArrayProperty.java
Or download all of them as a single archive file:
File name: poi-5.2.3-src.zip File size: 2479830 bytes Release date: 2022-09-09 Download
⇒ What Is poi-ooxml-5.2.3.jar?
⇐ What Is poi-bin-5.2.3-20220909.zip?
2017-04-04, 57138👍, 0💬
Popular Posts:
What Is jsse.jar (JDK 6) Java Secure Socket Extension? jsse.jar, Java Secure Socket Extension, is Ja...
jlGui is a music player for the Java platform. It is based on Java Sound 1.0 (i.e. JDK 1.3+). It sup...
Java Architecture for XML Binding (JAXB) is a Java API that allows Java developers to map Java class...
How to download and install xml-commons External Source Package? The source package contains Java so...
commons-net-1.4.1.jar is the JAR file for Apache Commons Net 1.4.1, which implements the client side...