83 lines
2.7 KiB
Java
83 lines
2.7 KiB
Java
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package jxl.demo;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import jxl.WorkbookSettings;
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import jxl.biff.BaseCompoundFile;
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import jxl.read.biff.BiffException;
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import jxl.read.biff.CompoundFile;
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class PropertySetsReader {
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private BufferedWriter writer;
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private CompoundFile compoundFile;
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public PropertySetsReader(File file, String propertySet, OutputStream os) throws IOException, BiffException {
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this.writer = new BufferedWriter(new OutputStreamWriter(os));
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FileInputStream fis = new FileInputStream(file);
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int initialFileSize = 1048576;
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int arrayGrowSize = 1048576;
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byte[] d = new byte[initialFileSize];
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int bytesRead = fis.read(d);
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int pos = bytesRead;
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while (bytesRead != -1) {
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if (pos >= d.length) {
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byte[] newArray = new byte[d.length + arrayGrowSize];
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System.arraycopy(d, 0, newArray, 0, d.length);
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d = newArray;
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}
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bytesRead = fis.read(d, pos, d.length - pos);
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pos += bytesRead;
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}
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bytesRead = pos + 1;
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this.compoundFile = new CompoundFile(d, new WorkbookSettings());
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fis.close();
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if (propertySet == null) {
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displaySets();
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} else {
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displayPropertySet(propertySet, os);
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}
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}
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void displaySets() throws IOException {
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int numSets = this.compoundFile.getNumberOfPropertySets();
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for (int i = 0; i < numSets; i++) {
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BaseCompoundFile.PropertyStorage ps = this.compoundFile.getPropertySet(i);
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this.writer.write(Integer.toString(i));
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this.writer.write(") ");
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this.writer.write(ps.name);
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this.writer.write("(type ");
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this.writer.write(Integer.toString(ps.type));
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this.writer.write(" size ");
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this.writer.write(Integer.toString(ps.size));
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this.writer.write(" prev ");
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this.writer.write(Integer.toString(ps.previous));
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this.writer.write(" next ");
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this.writer.write(Integer.toString(ps.next));
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this.writer.write(" child ");
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this.writer.write(Integer.toString(ps.child));
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this.writer.write(" start block ");
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this.writer.write(Integer.toString(ps.startBlock));
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this.writer.write(")");
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this.writer.newLine();
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}
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this.writer.flush();
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this.writer.close();
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}
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void displayPropertySet(String ps, OutputStream os) throws IOException, BiffException {
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if (ps.equalsIgnoreCase("SummaryInformation")) {
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ps = "\005SummaryInformation";
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} else if (ps.equalsIgnoreCase("DocumentSummaryInformation")) {
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ps = "\005DocumentSummaryInformation";
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} else if (ps.equalsIgnoreCase("CompObj")) {
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ps = "\001CompObj";
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}
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byte[] stream = this.compoundFile.getStream(ps);
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os.write(stream);
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}
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}
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