The NPOIFS-classes result currently in left-over memory mapped buffers.
These are actually hard to workaround, so for Windows the test is ignored, if this error happens. http://stackoverflow.com/questions/3602783/file-access-synchronized-on-java-object Apart of that, the RandomFileAccess instance is saved in the FileBackedDataSource as it needs to be closed instead of the Channel. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=4796385 git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1592418 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andreas Beeker
parent
4112a8441e
commit
234ad7f85e
@ -27,7 +27,6 @@ import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.PushbackInputStream;
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import java.io.RandomAccessFile;
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import java.nio.ByteBuffer;
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import java.nio.channels.Channels;
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import java.nio.channels.FileChannel;
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@ -162,11 +161,7 @@ public class NPOIFSFileSystem extends BlockStore
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public NPOIFSFileSystem(File file, boolean readOnly)
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throws IOException
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{
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this(
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(new RandomAccessFile(file, readOnly? "r" : "rw")).getChannel(),
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readOnly,
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true
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);
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this(null, file, readOnly, true);
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}
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/**
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@ -184,15 +179,24 @@ public class NPOIFSFileSystem extends BlockStore
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public NPOIFSFileSystem(FileChannel channel)
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throws IOException
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{
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this(channel, false, false);
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this(channel, null, false, false);
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}
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private NPOIFSFileSystem(FileChannel channel, boolean readOnly, boolean closeChannelOnError)
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private NPOIFSFileSystem(FileChannel channel, File srcFile, boolean readOnly, boolean closeChannelOnError)
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throws IOException
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{
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this(false);
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try {
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// Initialize the datasource
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if (srcFile != null) {
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FileBackedDataSource d = new FileBackedDataSource(srcFile, readOnly);
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channel = d.getChannel();
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_data = d;
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} else {
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_data = new FileBackedDataSource(channel, readOnly);
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}
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// Get the header
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ByteBuffer headerBuffer = ByteBuffer.allocate(POIFSConstants.SMALLER_BIG_BLOCK_SIZE);
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IOUtils.readFully(channel, headerBuffer);
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@ -201,7 +205,6 @@ public class NPOIFSFileSystem extends BlockStore
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_header = new HeaderBlock(headerBuffer);
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// Now process the various entries
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_data = new FileBackedDataSource(channel, readOnly);
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readCoreContents();
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} catch(IOException e) {
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if(closeChannelOnError) {
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@ -35,16 +35,22 @@ import org.apache.poi.util.IOUtils;
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public class FileBackedDataSource extends DataSource {
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private FileChannel channel;
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private boolean writable;
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// remember file base, which needs to be closed too
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private RandomAccessFile srcFile;
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@SuppressWarnings("resource")
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public FileBackedDataSource(File file) throws FileNotFoundException {
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if(!file.exists()) {
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throw new FileNotFoundException(file.toString());
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}
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this.channel = (new RandomAccessFile(file, "r")).getChannel();
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this.writable = false;
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this(newSrcFile(file, "r"), true);
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}
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public FileBackedDataSource(File file, boolean readOnly) throws FileNotFoundException {
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this(newSrcFile(file, readOnly ? "r" : "rw"), readOnly);
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}
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public FileBackedDataSource(RandomAccessFile srcFile, boolean readOnly) {
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this(srcFile.getChannel(), readOnly);
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this.srcFile = srcFile;
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}
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public FileBackedDataSource(FileChannel channel, boolean readOnly) {
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this.channel = channel;
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this.writable = !readOnly;
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@ -53,6 +59,10 @@ public class FileBackedDataSource extends DataSource {
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public boolean isWriteable() {
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return this.writable;
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}
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public FileChannel getChannel() {
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return this.channel;
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}
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@Override
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public ByteBuffer read(int length, long position) throws IOException {
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@ -105,6 +115,18 @@ public class FileBackedDataSource extends DataSource {
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@Override
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public void close() throws IOException {
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channel.close();
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if (srcFile != null) {
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// see http://bugs.java.com/bugdatabase/view_bug.do?bug_id=4796385
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srcFile.close();
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} else {
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channel.close();
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}
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}
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private static RandomAccessFile newSrcFile(File file, String mode) throws FileNotFoundException {
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if(!file.exists()) {
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throw new FileNotFoundException(file.toString());
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}
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return new RandomAccessFile(file, mode);
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}
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}
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@ -29,6 +29,7 @@ import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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@ -74,6 +75,7 @@ import org.apache.poi.util.CodePageUtil;
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import org.apache.poi.util.IOUtils;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.util.TempFile;
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import org.junit.Assume;
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import org.junit.Before;
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import org.junit.Test;
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@ -827,179 +829,190 @@ public class TestWrite
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*/
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@Test
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public void inPlaceNPOIFSWrite() throws Exception {
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NPOIFSFileSystem fs = null;
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DirectoryEntry root = null;
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DocumentNode sinfDoc = null;
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DocumentNode dinfDoc = null;
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SummaryInformation sinf = null;
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DocumentSummaryInformation dinf = null;
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// We need to work on a File for in-place changes, so create a temp one
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final File copy = TempFile.createTempFile("Test-HPSF", "ole2");
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copy.deleteOnExit();
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// Copy a test file over to our temp location
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InputStream inp = _samples.openResourceAsStream("TestShiftJIS.doc");
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FileOutputStream out = new FileOutputStream(copy);
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IOUtils.copy(inp, out);
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inp.close();
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out.close();
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// Open the copy in read/write mode
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fs = new NPOIFSFileSystem(copy, false);
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root = fs.getRoot();
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// Read the properties in there
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Check they start as we expect
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assertEquals("Reiichiro Hori", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("\u7b2c1\u7ae0", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals(null, dinf.getManager());
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// Do an in-place replace via an InputStream
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new NPOIFSDocument(sinfDoc).replaceContents(sinf.toInputStream());
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new NPOIFSDocument(dinfDoc).replaceContents(dinf.toInputStream());
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// Check it didn't get changed
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Start again!
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fs.close();
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inp = _samples.openResourceAsStream("TestShiftJIS.doc");
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out = new FileOutputStream(copy);
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IOUtils.copy(inp, out);
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inp.close();
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out.close();
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fs = new NPOIFSFileSystem(copy, false);
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root = fs.getRoot();
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// Read the properties in once more
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Have them write themselves in-place with no changes, as an OutputStream
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sinf.write(new NDocumentOutputStream(sinfDoc));
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dinf.write(new NDocumentOutputStream(dinfDoc));
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// And also write to some bytes for checking
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ByteArrayOutputStream sinfBytes = new ByteArrayOutputStream();
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sinf.write(sinfBytes);
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ByteArrayOutputStream dinfBytes = new ByteArrayOutputStream();
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dinf.write(dinfBytes);
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// Check that the filesystem can give us back the same bytes
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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byte[] sinfData = IOUtils.toByteArray(new NDocumentInputStream(sinfDoc));
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byte[] dinfData = IOUtils.toByteArray(new NDocumentInputStream(dinfDoc));
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assertThat(sinfBytes.toByteArray(), equalTo(sinfData));
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assertThat(dinfBytes.toByteArray(), equalTo(dinfData));
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// Read back in as-is
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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assertEquals("Reiichiro Hori", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("\u7b2c1\u7ae0", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals(null, dinf.getManager());
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// Now alter a few of them
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sinf.setAuthor("Changed Author");
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sinf.setTitle("Le titre \u00e9tait chang\u00e9");
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dinf.setManager("Changed Manager");
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// Save this into the filesystem
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sinf.write(new NDocumentOutputStream(sinfDoc));
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dinf.write(new NDocumentOutputStream(dinfDoc));
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// Read them back in again
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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assertEquals("Changed Author", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("Le titre \u00e9tait chang\u00e9", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals("Changed Manager", dinf.getManager());
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// Close the whole filesystem, and open it once more
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fs.writeFilesystem();
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fs.close();
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fs = new NPOIFSFileSystem(copy);
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root = fs.getRoot();
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// Re-check on load
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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assertEquals("Changed Author", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("Le titre \u00e9tait chang\u00e9", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals("Changed Manager", dinf.getManager());
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// Tidy up
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fs.close();
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copy.delete();
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try {
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NPOIFSFileSystem fs = null;
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DirectoryEntry root = null;
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DocumentNode sinfDoc = null;
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DocumentNode dinfDoc = null;
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SummaryInformation sinf = null;
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DocumentSummaryInformation dinf = null;
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// We need to work on a File for in-place changes, so create a temp one
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final File copy = TempFile.createTempFile("Test-HPSF", "ole2");
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copy.deleteOnExit();
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// Copy a test file over to our temp location
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InputStream inp = _samples.openResourceAsStream("TestShiftJIS.doc");
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FileOutputStream out = new FileOutputStream(copy);
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IOUtils.copy(inp, out);
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inp.close();
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out.close();
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// Open the copy in read/write mode
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fs = new NPOIFSFileSystem(copy, false);
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root = fs.getRoot();
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// Read the properties in there
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Check they start as we expect
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assertEquals("Reiichiro Hori", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("\u7b2c1\u7ae0", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals(null, dinf.getManager());
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// Do an in-place replace via an InputStream
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new NPOIFSDocument(sinfDoc).replaceContents(sinf.toInputStream());
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new NPOIFSDocument(dinfDoc).replaceContents(dinf.toInputStream());
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// Check it didn't get changed
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Start again!
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fs.close();
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inp = _samples.openResourceAsStream("TestShiftJIS.doc");
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out = new FileOutputStream(copy);
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IOUtils.copy(inp, out);
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inp.close();
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out.close();
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fs = new NPOIFSFileSystem(copy, false);
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root = fs.getRoot();
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// Read the properties in once more
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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// Have them write themselves in-place with no changes, as an OutputStream
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sinf.write(new NDocumentOutputStream(sinfDoc));
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dinf.write(new NDocumentOutputStream(dinfDoc));
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// And also write to some bytes for checking
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ByteArrayOutputStream sinfBytes = new ByteArrayOutputStream();
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sinf.write(sinfBytes);
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ByteArrayOutputStream dinfBytes = new ByteArrayOutputStream();
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dinf.write(dinfBytes);
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// Check that the filesystem can give us back the same bytes
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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byte[] sinfData = IOUtils.toByteArray(new NDocumentInputStream(sinfDoc));
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byte[] dinfData = IOUtils.toByteArray(new NDocumentInputStream(dinfDoc));
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assertThat(sinfBytes.toByteArray(), equalTo(sinfData));
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assertThat(dinfBytes.toByteArray(), equalTo(dinfData));
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// Read back in as-is
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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assertEquals("Reiichiro Hori", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("\u7b2c1\u7ae0", sinf.getTitle());
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assertEquals("", dinf.getCompany());
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assertEquals(null, dinf.getManager());
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// Now alter a few of them
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sinf.setAuthor("Changed Author");
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sinf.setTitle("Le titre \u00e9tait chang\u00e9");
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dinf.setManager("Changed Manager");
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// Save this into the filesystem
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sinf.write(new NDocumentOutputStream(sinfDoc));
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dinf.write(new NDocumentOutputStream(dinfDoc));
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// Read them back in again
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sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
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sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
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assertEquals(131077, sinf.getOSVersion());
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dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
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dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
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assertEquals(131077, dinf.getOSVersion());
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assertEquals("Changed Author", sinf.getAuthor());
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assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
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assertEquals("Le titre \u00e9tait chang\u00e9", sinf.getTitle());
|
||||
|
||||
assertEquals("", dinf.getCompany());
|
||||
assertEquals("Changed Manager", dinf.getManager());
|
||||
|
||||
|
||||
// Close the whole filesystem, and open it once more
|
||||
fs.writeFilesystem();
|
||||
fs.close();
|
||||
|
||||
fs = new NPOIFSFileSystem(copy);
|
||||
root = fs.getRoot();
|
||||
|
||||
// Re-check on load
|
||||
sinfDoc = (DocumentNode)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
|
||||
sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(sinfDoc));
|
||||
assertEquals(131077, sinf.getOSVersion());
|
||||
|
||||
dinfDoc = (DocumentNode)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
|
||||
dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(dinfDoc));
|
||||
assertEquals(131077, dinf.getOSVersion());
|
||||
|
||||
assertEquals("Changed Author", sinf.getAuthor());
|
||||
assertEquals("Microsoft Word 9.0", sinf.getApplicationName());
|
||||
assertEquals("Le titre \u00e9tait chang\u00e9", sinf.getTitle());
|
||||
|
||||
assertEquals("", dinf.getCompany());
|
||||
assertEquals("Changed Manager", dinf.getManager());
|
||||
|
||||
|
||||
// Tidy up
|
||||
fs.close();
|
||||
copy.delete();
|
||||
} catch (FileNotFoundException e) {
|
||||
// On Windows this might always fail, as the nio classes
|
||||
// leave memory mapped buffers active, even when the corresponding channel is closed
|
||||
// The buffers are closed on garbage-collection (but System.gc() can't be forced)
|
||||
// or via sun.misc.Cleaner, but this is regarded unsafe
|
||||
// http://stackoverflow.com/questions/2972986
|
||||
// http://bugs.java.com/view_bug.do?bug_id=4724038
|
||||
Assume.assumeFalse(System.getProperty("os.name").toLowerCase().contains("win"));
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user