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539
hrmsEjb/jxl/write/biff/CompoundFile.java
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539
hrmsEjb/jxl/write/biff/CompoundFile.java
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package jxl.write.biff;
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import common.Assert;
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import common.Logger;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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import jxl.biff.BaseCompoundFile;
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import jxl.biff.IntegerHelper;
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import jxl.read.biff.BiffException;
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final class CompoundFile extends BaseCompoundFile {
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private static Logger logger = Logger.getLogger(CompoundFile.class);
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private OutputStream out;
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private byte[] excelData;
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private int size;
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private int requiredSize;
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private int numBigBlockDepotBlocks;
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private int numSmallBlockDepotChainBlocks;
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private int numSmallBlockDepotBlocks;
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private int numExtensionBlocks;
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private int extensionBlock;
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private int excelDataBlocks;
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private int rootStartBlock;
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private int excelDataStartBlock;
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private int bbdStartBlock;
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private int sbdStartBlockChain;
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private int sbdStartBlock;
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private int additionalPropertyBlocks;
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private int numSmallBlocks;
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private int numPropertySets;
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private int numRootEntryBlocks;
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private ArrayList additionalPropertySets;
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private HashMap standardPropertySets;
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private int bbdPos;
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private byte[] bigBlockDepot;
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private static final class ReadPropertyStorage {
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BaseCompoundFile.PropertyStorage propertyStorage;
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byte[] data;
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int number;
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ReadPropertyStorage(BaseCompoundFile.PropertyStorage ps, byte[] d, int n) {
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this.propertyStorage = ps;
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this.data = d;
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this.number = n;
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}
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}
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public CompoundFile(byte[] data, int l, OutputStream os, jxl.read.biff.CompoundFile rcf) throws CopyAdditionalPropertySetsException, IOException {
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this.size = l;
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this.excelData = data;
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readAdditionalPropertySets(rcf);
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this.numRootEntryBlocks = 1;
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this.numPropertySets = 4 + ((this.additionalPropertySets != null) ? this.additionalPropertySets.size() : 0);
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if (this.additionalPropertySets != null) {
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this.numSmallBlockDepotChainBlocks = getBigBlocksRequired(this.numSmallBlocks * 4);
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this.numSmallBlockDepotBlocks = getBigBlocksRequired(this.numSmallBlocks * 64);
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this.numRootEntryBlocks += getBigBlocksRequired(this.additionalPropertySets.size() * 128);
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}
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int blocks = getBigBlocksRequired(l);
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if (l < 4096) {
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this.requiredSize = 4096;
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} else {
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this.requiredSize = blocks * 512;
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}
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this.out = os;
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this.excelDataBlocks = this.requiredSize / 512;
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this.numBigBlockDepotBlocks = 1;
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int blockChainLength = 109;
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int startTotalBlocks = this.excelDataBlocks + 8 + 8 + this.additionalPropertyBlocks + this.numSmallBlockDepotBlocks + this.numSmallBlockDepotChainBlocks + this.numRootEntryBlocks;
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int totalBlocks = startTotalBlocks + this.numBigBlockDepotBlocks;
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this.numBigBlockDepotBlocks = (int)Math.ceil(totalBlocks / 128.0D);
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totalBlocks = startTotalBlocks + this.numBigBlockDepotBlocks;
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this.numBigBlockDepotBlocks = (int)Math.ceil(totalBlocks / 128.0D);
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totalBlocks = startTotalBlocks + this.numBigBlockDepotBlocks;
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if (this.numBigBlockDepotBlocks > blockChainLength - 1) {
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this.extensionBlock = 0;
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int bbdBlocksLeft = this.numBigBlockDepotBlocks - blockChainLength + 1;
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this.numExtensionBlocks = (int)Math.ceil(bbdBlocksLeft / 127.0D);
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totalBlocks = startTotalBlocks + this.numExtensionBlocks + this.numBigBlockDepotBlocks;
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this.numBigBlockDepotBlocks = (int)Math.ceil(totalBlocks / 128.0D);
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totalBlocks = startTotalBlocks + this.numExtensionBlocks + this.numBigBlockDepotBlocks;
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} else {
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this.extensionBlock = -2;
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this.numExtensionBlocks = 0;
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}
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this.excelDataStartBlock = this.numExtensionBlocks;
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this.sbdStartBlock = -2;
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if (this.additionalPropertySets != null && this.numSmallBlockDepotBlocks != 0)
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this.sbdStartBlock = this.excelDataStartBlock + this.excelDataBlocks + this.additionalPropertyBlocks + 16;
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this.sbdStartBlockChain = -2;
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if (this.sbdStartBlock != -2)
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this.sbdStartBlockChain = this.sbdStartBlock + this.numSmallBlockDepotBlocks;
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if (this.sbdStartBlockChain != -2) {
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this.bbdStartBlock = this.sbdStartBlockChain + this.numSmallBlockDepotChainBlocks;
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} else {
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this.bbdStartBlock = this.excelDataStartBlock + this.excelDataBlocks + this.additionalPropertyBlocks + 16;
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}
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this.rootStartBlock = this.bbdStartBlock + this.numBigBlockDepotBlocks;
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if (totalBlocks != this.rootStartBlock + this.numRootEntryBlocks) {
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logger.warn("Root start block and total blocks are inconsistent generated file may be corrupt");
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logger.warn("RootStartBlock " + this.rootStartBlock + " totalBlocks " + totalBlocks);
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}
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}
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private void readAdditionalPropertySets(jxl.read.biff.CompoundFile readCompoundFile) throws CopyAdditionalPropertySetsException, IOException {
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if (readCompoundFile == null)
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return;
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this.additionalPropertySets = new ArrayList();
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this.standardPropertySets = new HashMap();
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int blocksRequired = 0;
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int numPropertySets = readCompoundFile.getNumberOfPropertySets();
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for (int i = 0; i < numPropertySets; i++) {
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BaseCompoundFile.PropertyStorage ps = readCompoundFile.getPropertySet(i);
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boolean standard = false;
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if (ps.name.equalsIgnoreCase("Root Entry")) {
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standard = true;
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ReadPropertyStorage rps = new ReadPropertyStorage(ps, null, i);
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this.standardPropertySets.put("Root Entry", rps);
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}
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for (int j = 0; j < STANDARD_PROPERTY_SETS.length && !standard; j++) {
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if (ps.name.equalsIgnoreCase(STANDARD_PROPERTY_SETS[j])) {
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BaseCompoundFile.PropertyStorage ps2 = readCompoundFile.findPropertyStorage(ps.name);
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Assert.verify((ps2 != null));
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if (ps2 == ps) {
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standard = true;
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ReadPropertyStorage rps = new ReadPropertyStorage(ps, null, i);
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this.standardPropertySets.put(STANDARD_PROPERTY_SETS[j], rps);
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}
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}
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}
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if (!standard)
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try {
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byte[] data = null;
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if (ps.size > 0) {
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data = readCompoundFile.getStream(i);
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} else {
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data = new byte[0];
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}
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ReadPropertyStorage rps = new ReadPropertyStorage(ps, data, i);
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this.additionalPropertySets.add(rps);
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if (data.length > 4096) {
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int blocks = getBigBlocksRequired(data.length);
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blocksRequired += blocks;
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} else {
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int blocks = getSmallBlocksRequired(data.length);
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this.numSmallBlocks += blocks;
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}
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} catch (BiffException e) {
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logger.error(e);
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throw new CopyAdditionalPropertySetsException();
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}
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}
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this.additionalPropertyBlocks = blocksRequired;
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}
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public void write() throws IOException {
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writeHeader();
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writeExcelData();
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writeDocumentSummaryData();
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writeSummaryData();
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writeAdditionalPropertySets();
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writeSmallBlockDepot();
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writeSmallBlockDepotChain();
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writeBigBlockDepot();
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writePropertySets();
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}
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private void writeAdditionalPropertySets() throws IOException {
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if (this.additionalPropertySets == null)
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return;
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for (Iterator i = this.additionalPropertySets.iterator(); i.hasNext(); ) {
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ReadPropertyStorage rps = i.next();
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byte[] data = rps.data;
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if (data.length > 4096) {
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int numBlocks = getBigBlocksRequired(data.length);
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int requiredSize = numBlocks * 512;
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this.out.write(data, 0, data.length);
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byte[] padding = new byte[requiredSize - data.length];
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this.out.write(padding, 0, padding.length);
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}
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}
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}
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private void writeExcelData() throws IOException {
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this.out.write(this.excelData, 0, this.size);
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byte[] padding = new byte[this.requiredSize - this.size];
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this.out.write(padding);
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}
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private void writeDocumentSummaryData() throws IOException {
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byte[] padding = new byte[4096];
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this.out.write(padding);
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}
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private void writeSummaryData() throws IOException {
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byte[] padding = new byte[4096];
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this.out.write(padding);
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}
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private void writeHeader() throws IOException {
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byte[] headerBlock = new byte[512];
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byte[] extensionBlockData = new byte[512 * this.numExtensionBlocks];
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System.arraycopy(IDENTIFIER, 0, headerBlock, 0, IDENTIFIER.length);
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headerBlock[24] = 62;
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headerBlock[26] = 3;
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headerBlock[28] = -2;
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headerBlock[29] = -1;
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headerBlock[30] = 9;
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headerBlock[32] = 6;
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headerBlock[57] = 16;
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IntegerHelper.getFourBytes(this.numBigBlockDepotBlocks, headerBlock, 44);
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IntegerHelper.getFourBytes(this.sbdStartBlockChain, headerBlock, 60);
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IntegerHelper.getFourBytes(this.numSmallBlockDepotChainBlocks, headerBlock, 64);
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IntegerHelper.getFourBytes(this.extensionBlock, headerBlock, 68);
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IntegerHelper.getFourBytes(this.numExtensionBlocks, headerBlock, 72);
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IntegerHelper.getFourBytes(this.rootStartBlock, headerBlock, 48);
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int pos = 76;
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int blocksToWrite = Math.min(this.numBigBlockDepotBlocks, 109);
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int blocksWritten = 0;
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int i;
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for (i = 0; i < blocksToWrite; i++) {
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IntegerHelper.getFourBytes(this.bbdStartBlock + i, headerBlock, pos);
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pos += 4;
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blocksWritten++;
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}
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for (i = pos; i < 512; i++)
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headerBlock[i] = -1;
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this.out.write(headerBlock);
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pos = 0;
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for (int extBlock = 0; extBlock < this.numExtensionBlocks; extBlock++) {
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blocksToWrite = Math.min(this.numBigBlockDepotBlocks - blocksWritten, 127);
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for (int j = 0; j < blocksToWrite; j++) {
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IntegerHelper.getFourBytes(this.bbdStartBlock + blocksWritten + j, extensionBlockData, pos);
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pos += 4;
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}
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blocksWritten += blocksToWrite;
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int nextBlock = (blocksWritten == this.numBigBlockDepotBlocks) ? -2 : (extBlock + 1);
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IntegerHelper.getFourBytes(nextBlock, extensionBlockData, pos);
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pos += 4;
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}
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if (this.numExtensionBlocks > 0) {
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for (int j = pos; j < extensionBlockData.length; j++)
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extensionBlockData[j] = -1;
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this.out.write(extensionBlockData);
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}
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}
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private void checkBbdPos() throws IOException {
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if (this.bbdPos >= 512) {
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this.out.write(this.bigBlockDepot);
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this.bigBlockDepot = new byte[512];
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this.bbdPos = 0;
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}
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}
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private void writeBlockChain(int startBlock, int numBlocks) throws IOException {
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int blocksToWrite = numBlocks - 1;
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int blockNumber = startBlock + 1;
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while (blocksToWrite > 0) {
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int bbdBlocks = Math.min(blocksToWrite, (512 - this.bbdPos) / 4);
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for (int i = 0; i < bbdBlocks; i++) {
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IntegerHelper.getFourBytes(blockNumber, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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blockNumber++;
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}
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blocksToWrite -= bbdBlocks;
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checkBbdPos();
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}
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IntegerHelper.getFourBytes(-2, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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}
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private void writeAdditionalPropertySetBlockChains() throws IOException {
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if (this.additionalPropertySets == null)
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return;
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int blockNumber = this.excelDataStartBlock + this.excelDataBlocks + 16;
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for (Iterator i = this.additionalPropertySets.iterator(); i.hasNext(); ) {
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ReadPropertyStorage rps = i.next();
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if (rps.data.length > 4096) {
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int numBlocks = getBigBlocksRequired(rps.data.length);
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writeBlockChain(blockNumber, numBlocks);
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blockNumber += numBlocks;
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}
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}
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}
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private void writeSmallBlockDepotChain() throws IOException {
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if (this.sbdStartBlockChain == -2)
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return;
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byte[] smallBlockDepotChain = new byte[this.numSmallBlockDepotChainBlocks * 512];
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int pos = 0;
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int sbdBlockNumber = 1;
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for (Iterator i = this.additionalPropertySets.iterator(); i.hasNext(); ) {
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ReadPropertyStorage rps = i.next();
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if (rps.data.length <= 4096 && rps.data.length != 0) {
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int numSmallBlocks = getSmallBlocksRequired(rps.data.length);
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for (int j = 0; j < numSmallBlocks - 1; j++) {
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IntegerHelper.getFourBytes(sbdBlockNumber, smallBlockDepotChain, pos);
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pos += 4;
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sbdBlockNumber++;
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}
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IntegerHelper.getFourBytes(-2, smallBlockDepotChain, pos);
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pos += 4;
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sbdBlockNumber++;
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}
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}
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this.out.write(smallBlockDepotChain);
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}
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private void writeSmallBlockDepot() throws IOException {
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if (this.additionalPropertySets == null)
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return;
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byte[] smallBlockDepot = new byte[this.numSmallBlockDepotBlocks * 512];
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int pos = 0;
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for (Iterator i = this.additionalPropertySets.iterator(); i.hasNext(); ) {
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ReadPropertyStorage rps = i.next();
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if (rps.data.length <= 4096) {
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int smallBlocks = getSmallBlocksRequired(rps.data.length);
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int length = smallBlocks * 64;
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System.arraycopy(rps.data, 0, smallBlockDepot, pos, rps.data.length);
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pos += length;
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}
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}
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this.out.write(smallBlockDepot);
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}
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private void writeBigBlockDepot() throws IOException {
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this.bigBlockDepot = new byte[512];
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this.bbdPos = 0;
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for (int i = 0; i < this.numExtensionBlocks; i++) {
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IntegerHelper.getFourBytes(-3, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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}
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writeBlockChain(this.excelDataStartBlock, this.excelDataBlocks);
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int summaryInfoBlock = this.excelDataStartBlock + this.excelDataBlocks + this.additionalPropertyBlocks;
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int j;
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for (j = summaryInfoBlock; j < summaryInfoBlock + 7; j++) {
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IntegerHelper.getFourBytes(j + 1, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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}
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IntegerHelper.getFourBytes(-2, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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for (j = summaryInfoBlock + 8; j < summaryInfoBlock + 15; j++) {
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IntegerHelper.getFourBytes(j + 1, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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}
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IntegerHelper.getFourBytes(-2, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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writeAdditionalPropertySetBlockChains();
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if (this.sbdStartBlock != -2) {
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writeBlockChain(this.sbdStartBlock, this.numSmallBlockDepotBlocks);
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writeBlockChain(this.sbdStartBlockChain, this.numSmallBlockDepotChainBlocks);
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}
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for (j = 0; j < this.numBigBlockDepotBlocks; j++) {
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IntegerHelper.getFourBytes(-3, this.bigBlockDepot, this.bbdPos);
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this.bbdPos += 4;
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checkBbdPos();
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}
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writeBlockChain(this.rootStartBlock, this.numRootEntryBlocks);
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if (this.bbdPos != 0) {
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for (j = this.bbdPos; j < 512; j++)
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this.bigBlockDepot[j] = -1;
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this.out.write(this.bigBlockDepot);
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}
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}
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private int getBigBlocksRequired(int length) {
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int blocks = length / 512;
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return (length % 512 > 0) ? (blocks + 1) : blocks;
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}
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private int getSmallBlocksRequired(int length) {
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int blocks = length / 64;
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return (length % 64 > 0) ? (blocks + 1) : blocks;
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}
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private void writePropertySets() throws IOException {
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byte[] propertySetStorage = new byte[512 * this.numRootEntryBlocks];
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int pos = 0;
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int[] mappings = null;
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if (this.additionalPropertySets != null) {
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mappings = new int[this.numPropertySets];
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for (int j = 0; j < STANDARD_PROPERTY_SETS.length; j++) {
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ReadPropertyStorage rps = (ReadPropertyStorage)this.standardPropertySets.get(STANDARD_PROPERTY_SETS[j]);
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if (rps != null) {
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mappings[rps.number] = j;
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} else {
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logger.warn("Standard property set " + STANDARD_PROPERTY_SETS[j] + " not present in source file");
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}
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}
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int newMapping = STANDARD_PROPERTY_SETS.length;
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for (Iterator iterator = this.additionalPropertySets.iterator(); iterator.hasNext(); ) {
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ReadPropertyStorage rps = iterator.next();
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mappings[rps.number] = newMapping;
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newMapping++;
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}
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}
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int child = 0;
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int previous = 0;
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int next = 0;
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int size = 0;
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if (this.additionalPropertySets != null) {
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size += getBigBlocksRequired(this.requiredSize) * 512;
|
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size += getBigBlocksRequired(4096) * 512;
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size += getBigBlocksRequired(4096) * 512;
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for (Iterator iterator = this.additionalPropertySets.iterator(); iterator.hasNext(); ) {
|
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ReadPropertyStorage rps = iterator.next();
|
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if (rps.propertyStorage.type != 1) {
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if (rps.propertyStorage.size >= 4096) {
|
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size += getBigBlocksRequired(rps.propertyStorage.size) * 512;
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continue;
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}
|
||||
size += getSmallBlocksRequired(rps.propertyStorage.size) * 64;
|
||||
}
|
||||
}
|
||||
}
|
||||
BaseCompoundFile.PropertyStorage ps = new BaseCompoundFile.PropertyStorage(this, "Root Entry");
|
||||
ps.setType(5);
|
||||
ps.setStartBlock(this.sbdStartBlock);
|
||||
ps.setSize(size);
|
||||
ps.setPrevious(-1);
|
||||
ps.setNext(-1);
|
||||
ps.setColour(0);
|
||||
child = 1;
|
||||
if (this.additionalPropertySets != null) {
|
||||
ReadPropertyStorage rps = (ReadPropertyStorage)this.standardPropertySets.get("Root Entry");
|
||||
child = mappings[rps.propertyStorage.child];
|
||||
}
|
||||
ps.setChild(child);
|
||||
System.arraycopy(ps.data, 0, propertySetStorage, pos, 128);
|
||||
pos += 128;
|
||||
ps = new BaseCompoundFile.PropertyStorage(this, "Workbook");
|
||||
ps.setType(2);
|
||||
ps.setStartBlock(this.excelDataStartBlock);
|
||||
ps.setSize(this.requiredSize);
|
||||
previous = 3;
|
||||
next = -1;
|
||||
if (this.additionalPropertySets != null) {
|
||||
ReadPropertyStorage rps = (ReadPropertyStorage)this.standardPropertySets.get("Workbook");
|
||||
previous = (rps.propertyStorage.previous != -1) ? mappings[rps.propertyStorage.previous] : -1;
|
||||
next = (rps.propertyStorage.next != -1) ? mappings[rps.propertyStorage.next] : -1;
|
||||
}
|
||||
ps.setPrevious(previous);
|
||||
ps.setNext(next);
|
||||
ps.setChild(-1);
|
||||
System.arraycopy(ps.data, 0, propertySetStorage, pos, 128);
|
||||
pos += 128;
|
||||
ps = new BaseCompoundFile.PropertyStorage(this, "\005SummaryInformation");
|
||||
ps.setType(2);
|
||||
ps.setStartBlock(this.excelDataStartBlock + this.excelDataBlocks);
|
||||
ps.setSize(4096);
|
||||
previous = 1;
|
||||
next = 3;
|
||||
if (this.additionalPropertySets != null) {
|
||||
ReadPropertyStorage rps = (ReadPropertyStorage)this.standardPropertySets.get("\005SummaryInformation");
|
||||
if (rps != null) {
|
||||
previous = (rps.propertyStorage.previous != -1) ? mappings[rps.propertyStorage.previous] : -1;
|
||||
next = (rps.propertyStorage.next != -1) ? mappings[rps.propertyStorage.next] : -1;
|
||||
}
|
||||
}
|
||||
ps.setPrevious(previous);
|
||||
ps.setNext(next);
|
||||
ps.setChild(-1);
|
||||
System.arraycopy(ps.data, 0, propertySetStorage, pos, 128);
|
||||
pos += 128;
|
||||
ps = new BaseCompoundFile.PropertyStorage(this, "\005DocumentSummaryInformation");
|
||||
ps.setType(2);
|
||||
ps.setStartBlock(this.excelDataStartBlock + this.excelDataBlocks + 8);
|
||||
ps.setSize(4096);
|
||||
ps.setPrevious(-1);
|
||||
ps.setNext(-1);
|
||||
ps.setChild(-1);
|
||||
System.arraycopy(ps.data, 0, propertySetStorage, pos, 128);
|
||||
pos += 128;
|
||||
if (this.additionalPropertySets == null) {
|
||||
this.out.write(propertySetStorage);
|
||||
return;
|
||||
}
|
||||
int bigBlock = this.excelDataStartBlock + this.excelDataBlocks + 16;
|
||||
int smallBlock = 0;
|
||||
for (Iterator i = this.additionalPropertySets.iterator(); i.hasNext(); ) {
|
||||
ReadPropertyStorage rps = i.next();
|
||||
int block = (rps.data.length > 4096) ? bigBlock : smallBlock;
|
||||
ps = new BaseCompoundFile.PropertyStorage(this, rps.propertyStorage.name);
|
||||
ps.setType(rps.propertyStorage.type);
|
||||
ps.setStartBlock(block);
|
||||
ps.setSize(rps.propertyStorage.size);
|
||||
previous = (rps.propertyStorage.previous != -1) ? mappings[rps.propertyStorage.previous] : -1;
|
||||
next = (rps.propertyStorage.next != -1) ? mappings[rps.propertyStorage.next] : -1;
|
||||
child = (rps.propertyStorage.child != -1) ? mappings[rps.propertyStorage.child] : -1;
|
||||
ps.setPrevious(previous);
|
||||
ps.setNext(next);
|
||||
ps.setChild(child);
|
||||
System.arraycopy(ps.data, 0, propertySetStorage, pos, 128);
|
||||
pos += 128;
|
||||
if (rps.data.length > 4096) {
|
||||
bigBlock += getBigBlocksRequired(rps.data.length);
|
||||
continue;
|
||||
}
|
||||
smallBlock += getSmallBlocksRequired(rps.data.length);
|
||||
}
|
||||
this.out.write(propertySetStorage);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user