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/* ====================================================================
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.poifs.filesystem;
import static org.hamcrest.core.IsCollectionContaining.hasItem;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Iterator;
import org.apache.poi.POIDataSamples;
import org.apache.poi.hpsf.DocumentSummaryInformation;
import org.apache.poi.hpsf.PropertySet;
import org.apache.poi.hpsf.PropertySetFactory;
import org.apache.poi.hpsf.SummaryInformation;
import org.apache.poi.poifs.common.POIFSConstants;
import org.apache.poi.poifs.property.NPropertyTable;
import org.apache.poi.poifs.property.Property;
import org.apache.poi.poifs.property.RootProperty;
import org.apache.poi.poifs.storage.HeaderBlock;
import org.apache.poi.util.IOUtils;
import org.junit.Test;
/**
* Tests for the new NIO POIFSFileSystem implementation
*/
public final class TestNPOIFSFileSystem {
private static final POIDataSamples _inst = POIDataSamples.getPOIFSInstance();
/**
* Returns test files with 512 byte and 4k block sizes, loaded
* both from InputStreams and Files
*/
protected NPOIFSFileSystem[] get512and4kFileAndInput() throws Exception {
NPOIFSFileSystem fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
NPOIFSFileSystem fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
NPOIFSFileSystem fsC = new NPOIFSFileSystem(_inst.getFile("BlockSize4096.zvi"));
NPOIFSFileSystem fsD = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize4096.zvi"));
return new NPOIFSFileSystem[] {fsA,fsB,fsC,fsD};
}
protected static void assertBATCount(NPOIFSFileSystem fs, int expectedBAT, int expectedXBAT) throws IOException {
int foundBAT = 0;
int foundXBAT = 0;
int sz = (int)(fs.size() / fs.getBigBlockSize());
for (int i=0; i<sz; i++) {
if(fs.getNextBlock(i) == POIFSConstants.FAT_SECTOR_BLOCK) {
foundBAT++;
}
if(fs.getNextBlock(i) == POIFSConstants.DIFAT_SECTOR_BLOCK) {
foundXBAT++;
}
}
assertEquals("Wrong number of BATs", expectedBAT, foundBAT);
assertEquals("Wrong number of XBATs with " + expectedBAT + " BATs", expectedXBAT, foundXBAT);
}
protected void assertContentsMatches(byte[] expected, DocumentEntry doc) throws IOException {
NDocumentInputStream inp = new NDocumentInputStream(doc);
byte[] contents = new byte[doc.getSize()];
assertEquals(doc.getSize(), inp.read(contents));
inp.close();
if (expected != null)
assertThat(expected, equalTo(contents));
}
protected static HeaderBlock writeOutAndReadHeader(NPOIFSFileSystem fs) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
fs.writeFilesystem(baos);
HeaderBlock header = new HeaderBlock(new ByteArrayInputStream(baos.toByteArray()));
return header;
}
protected static NPOIFSFileSystem writeOutAndReadBack(NPOIFSFileSystem original) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
original.writeFilesystem(baos);
original.close();
return new NPOIFSFileSystem(new ByteArrayInputStream(baos.toByteArray()));
}
@Test
public void basicOpen() throws Exception {
NPOIFSFileSystem fsA, fsB;
// With a simple 512 block file
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
assertEquals(512, fs.getBigBlockSize());
}
fsA.close();
fsB.close();
// Now with a simple 4096 block file
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize4096.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize4096.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
assertEquals(4096, fs.getBigBlockSize());
}
fsA.close();
fsB.close();
}
@Test
public void propertiesAndFatOnRead() throws Exception {
NPOIFSFileSystem fsA, fsB;
// With a simple 512 block file
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
// Check the FAT was properly processed:
// Verify we only got one block
fs.getBATBlockAndIndex(0);
fs.getBATBlockAndIndex(1);
try {
fs.getBATBlockAndIndex(140);
fail("Should only be one BAT, but a 2nd was found");
} catch(IndexOutOfBoundsException e) {}
// Verify a few next offsets
// 97 -> 98 -> END
assertEquals(98, fs.getNextBlock(97));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(98));
// Check the properties
NPropertyTable props = fs._get_property_table();
assertEquals(90, props.getStartBlock());
assertEquals(7, props.countBlocks());
// Root property tells us about the Mini Stream
RootProperty root = props.getRoot();
assertEquals("Root Entry", root.getName());
assertEquals(11564, root.getSize());
assertEquals(0, root.getStartBlock());
// Check its children too
Property prop;
Iterator<Property> pi = root.getChildren();
prop = pi.next();
assertEquals("Thumbnail", prop.getName());
prop = pi.next();
assertEquals("\u0005DocumentSummaryInformation", prop.getName());
prop = pi.next();
assertEquals("\u0005SummaryInformation", prop.getName());
prop = pi.next();
assertEquals("Image", prop.getName());
prop = pi.next();
assertEquals("Tags", prop.getName());
assertEquals(false, pi.hasNext());
// Check the SBAT (Small Blocks FAT) was properly processed
NPOIFSMiniStore ministore = fs.getMiniStore();
// Verify we only got two SBAT blocks
ministore.getBATBlockAndIndex(0);
ministore.getBATBlockAndIndex(128);
try {
ministore.getBATBlockAndIndex(256);
fail("Should only be two SBATs, but a 3rd was found");
} catch(IndexOutOfBoundsException e) {}
// Verify a few offsets: 0->50 is a stream
for(int i=0; i<50; i++) {
assertEquals(i+1, ministore.getNextBlock(i));
}
assertEquals(POIFSConstants.END_OF_CHAIN, ministore.getNextBlock(50));
fs.close();
}
// Now with a simple 4096 block file
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize4096.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize4096.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
// Check the FAT was properly processed
// Verify we only got one block
fs.getBATBlockAndIndex(0);
fs.getBATBlockAndIndex(1);
try {
fs.getBATBlockAndIndex(1040);
fail("Should only be one BAT, but a 2nd was found");
} catch(IndexOutOfBoundsException e) {}
// Verify a few next offsets
// 0 -> 1 -> 2 -> END
assertEquals(1, fs.getNextBlock(0));
assertEquals(2, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
// Check the properties
NPropertyTable props = fs._get_property_table();
assertEquals(12, props.getStartBlock());
assertEquals(1, props.countBlocks());
// Root property tells us about the Mini Stream
RootProperty root = props.getRoot();
assertEquals("Root Entry", root.getName());
assertEquals(11564, root.getSize());
assertEquals(0, root.getStartBlock());
// Check its children too
Property prop;
Iterator<Property> pi = root.getChildren();
prop = pi.next();
assertEquals("Thumbnail", prop.getName());
prop = pi.next();
assertEquals("\u0005DocumentSummaryInformation", prop.getName());
prop = pi.next();
assertEquals("\u0005SummaryInformation", prop.getName());
prop = pi.next();
assertEquals("Image", prop.getName());
prop = pi.next();
assertEquals("Tags", prop.getName());
assertEquals(false, pi.hasNext());
// Check the SBAT (Small Blocks FAT) was properly processed
NPOIFSMiniStore ministore = fs.getMiniStore();
// Verify we only got one SBAT block
ministore.getBATBlockAndIndex(0);
ministore.getBATBlockAndIndex(128);
ministore.getBATBlockAndIndex(1023);
try {
ministore.getBATBlockAndIndex(1024);
fail("Should only be one SBAT, but a 2nd was found");
} catch(IndexOutOfBoundsException e) {}
// Verify a few offsets: 0->50 is a stream
for(int i=0; i<50; i++) {
assertEquals(i+1, ministore.getNextBlock(i));
}
assertEquals(POIFSConstants.END_OF_CHAIN, ministore.getNextBlock(50));
fs.close();
}
}
/**
* Check that for a given block, we can correctly figure
* out what the next one is
*/
@Test
public void nextBlock() throws Exception {
NPOIFSFileSystem fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
NPOIFSFileSystem fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
// 0 -> 21 are simple
for(int i=0; i<21; i++) {
assertEquals(i+1, fs.getNextBlock(i));
}
// 21 jumps to 89, then ends
assertEquals(89, fs.getNextBlock(21));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(89));
// 22 -> 88 simple sequential stream
for(int i=22; i<88; i++) {
assertEquals(i+1, fs.getNextBlock(i));
}
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(88));
// 90 -> 96 is another stream
for(int i=90; i<96; i++) {
assertEquals(i+1, fs.getNextBlock(i));
}
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(96));
// 97+98 is another
assertEquals(98, fs.getNextBlock(97));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(98));
// 99 is our FAT block
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(99));
// 100 onwards is free
for(int i=100; i<fs.getBigBlockSizeDetails().getBATEntriesPerBlock(); i++) {
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(i));
}
fs.close();
}
// Quick check on 4096 byte blocks too
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize4096.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize4096.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
// 0 -> 1 -> 2 -> end
assertEquals(1, fs.getNextBlock(0));
assertEquals(2, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
// 4 -> 11 then end
for(int i=4; i<11; i++) {
assertEquals(i+1, fs.getNextBlock(i));
}
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(11));
fs.close();
}
}
/**
* Check we get the right data back for each block
*/
@Test
public void getBlock() throws Exception {
NPOIFSFileSystem fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
NPOIFSFileSystem fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
ByteBuffer b;
// The 0th block is the first data block
b = fs.getBlockAt(0);
assertEquals((byte)0x9e, b.get());
assertEquals((byte)0x75, b.get());
assertEquals((byte)0x97, b.get());
assertEquals((byte)0xf6, b.get());
// And the next block
b = fs.getBlockAt(1);
assertEquals((byte)0x86, b.get());
assertEquals((byte)0x09, b.get());
assertEquals((byte)0x22, b.get());
assertEquals((byte)0xfb, b.get());
// Check the final block too
b = fs.getBlockAt(99);
assertEquals((byte)0x01, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x02, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
fs.close();
}
// Quick check on 4096 byte blocks too
fsA = new NPOIFSFileSystem(_inst.getFile("BlockSize4096.zvi"));
fsB = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize4096.zvi"));
for(NPOIFSFileSystem fs : new NPOIFSFileSystem[] {fsA,fsB}) {
ByteBuffer b;
// The 0th block is the first data block
b = fs.getBlockAt(0);
assertEquals((byte)0x9e, b.get());
assertEquals((byte)0x75, b.get());
assertEquals((byte)0x97, b.get());
assertEquals((byte)0xf6, b.get());
// And the next block
b = fs.getBlockAt(1);
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x03, b.get());
assertEquals((byte)0x00, b.get());
// The 14th block is the FAT
b = fs.getBlockAt(14);
assertEquals((byte)0x01, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x02, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
assertEquals((byte)0x00, b.get());
fs.close();
}
}
/**
* Ask for free blocks where there are some already
* to be had from the FAT
*/
@Test
public void getFreeBlockWithSpare() throws Exception {
NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.getFile("BlockSize512.zvi"));
// Our first BAT block has spares
assertEquals(true, fs.getBATBlockAndIndex(0).getBlock().hasFreeSectors());
// First free one is 100
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(100));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(101));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(102));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(103));
// Ask, will get 100
assertEquals(100, fs.getFreeBlock());
// Ask again, will still get 100 as not written to
assertEquals(100, fs.getFreeBlock());
// Allocate it, then ask again
fs.setNextBlock(100, POIFSConstants.END_OF_CHAIN);
assertEquals(101, fs.getFreeBlock());
// All done
fs.close();
}
/**
* Ask for free blocks where no free ones exist, and so the
* file needs to be extended and another BAT/XBAT added
*/
@Test
public void getFreeBlockWithNoneSpare() throws Exception {
NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.openResourceAsStream("BlockSize512.zvi"));
int free;
// We have one BAT at block 99
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(99));
assertBATCount(fs, 1, 0);
// We've spare ones from 100 to 128
for(int i=100; i<128; i++) {
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(i));
}
// Check our BAT knows it's free
assertEquals(true, fs.getBATBlockAndIndex(0).getBlock().hasFreeSectors());
// Allocate all the spare ones
for(int i=100; i<128; i++) {
fs.setNextBlock(i, POIFSConstants.END_OF_CHAIN);
}
// BAT is now full, but there's only the one
assertEquals(false, fs.getBATBlockAndIndex(0).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(128).getBlock().hasFreeSectors());
fail("Should only be one BAT");
} catch(IndexOutOfBoundsException e) {}
assertBATCount(fs, 1, 0);
// Now ask for a free one, will need to extend the file
assertEquals(129, fs.getFreeBlock());
assertEquals(false, fs.getBATBlockAndIndex(0).getBlock().hasFreeSectors());
assertEquals(true, fs.getBATBlockAndIndex(128).getBlock().hasFreeSectors());
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(128));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(129));
// We now have 2 BATs, but no XBATs
assertBATCount(fs, 2, 0);
// Fill up to hold 109 BAT blocks
for(int i=0; i<109; i++) {
fs.getFreeBlock();
int startOffset = i*128;
while( fs.getBATBlockAndIndex(startOffset).getBlock().hasFreeSectors() ) {
free = fs.getFreeBlock();
fs.setNextBlock(free, POIFSConstants.END_OF_CHAIN);
}
}
assertEquals(false, fs.getBATBlockAndIndex(109*128-1).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(109*128).getBlock().hasFreeSectors());
fail("Should only be 109 BATs");
} catch(IndexOutOfBoundsException e) {}
// We now have 109 BATs, but no XBATs
assertBATCount(fs, 109, 0);
// Ask for it to be written out, and check the header
HeaderBlock header = writeOutAndReadHeader(fs);
assertEquals(109, header.getBATCount());
assertEquals(0, header.getXBATCount());
// Ask for another, will get our first XBAT
free = fs.getFreeBlock();
assertEquals(false, fs.getBATBlockAndIndex(109*128-1).getBlock().hasFreeSectors());
assertEquals(true, fs.getBATBlockAndIndex(110*128-1).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(110*128).getBlock().hasFreeSectors());
fail("Should only be 110 BATs");
} catch(IndexOutOfBoundsException e) {}
assertBATCount(fs, 110, 1);
header = writeOutAndReadHeader(fs);
assertEquals(110, header.getBATCount());
assertEquals(1, header.getXBATCount());
// Fill the XBAT, which means filling 127 BATs
for(int i=109; i<109+127; i++) {
fs.getFreeBlock();
int startOffset = i*128;
while( fs.getBATBlockAndIndex(startOffset).getBlock().hasFreeSectors() ) {
free = fs.getFreeBlock();
fs.setNextBlock(free, POIFSConstants.END_OF_CHAIN);
}
assertBATCount(fs, i+1, 1);
}
// Should now have 109+127 = 236 BATs
assertEquals(false, fs.getBATBlockAndIndex(236*128-1).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(236*128).getBlock().hasFreeSectors());
fail("Should only be 236 BATs");
} catch(IndexOutOfBoundsException e) {}
assertBATCount(fs, 236, 1);
// Ask for another, will get our 2nd XBAT
free = fs.getFreeBlock();
assertEquals(false, fs.getBATBlockAndIndex(236*128-1).getBlock().hasFreeSectors());
assertEquals(true, fs.getBATBlockAndIndex(237*128-1).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(237*128).getBlock().hasFreeSectors());
fail("Should only be 237 BATs");
} catch(IndexOutOfBoundsException e) {}
// Check the counts now
assertBATCount(fs, 237, 2);
// Check the header
header = writeOutAndReadHeader(fs);
// Now, write it out, and read it back in again fully
fs = writeOutAndReadBack(fs);
// Check that it is seen correctly
assertBATCount(fs, 237, 2);
assertEquals(false, fs.getBATBlockAndIndex(236*128-1).getBlock().hasFreeSectors());
assertEquals(true, fs.getBATBlockAndIndex(237*128-1).getBlock().hasFreeSectors());
try {
assertEquals(false, fs.getBATBlockAndIndex(237*128).getBlock().hasFreeSectors());
fail("Should only be 237 BATs");
} catch(IndexOutOfBoundsException e) {}
// All done
fs.close();
}
/**
* Test that we can correctly get the list of directory
* entries, and the details on the files in them
*/
@Test
public void listEntries() throws Exception {
for(NPOIFSFileSystem fs : get512and4kFileAndInput()) {
DirectoryEntry root = fs.getRoot();
assertEquals(5, root.getEntryCount());
// Check by the names
Entry thumbnail = root.getEntry("Thumbnail");
Entry dsi = root.getEntry("\u0005DocumentSummaryInformation");
Entry si = root.getEntry("\u0005SummaryInformation");
Entry image = root.getEntry("Image");
Entry tags = root.getEntry("Tags");
assertEquals(false, thumbnail.isDirectoryEntry());
assertEquals(false, dsi.isDirectoryEntry());
assertEquals(false, si.isDirectoryEntry());
assertEquals(true, image.isDirectoryEntry());
assertEquals(false, tags.isDirectoryEntry());
// Check via the iterator
Iterator<Entry> it = root.getEntries();
assertEquals(thumbnail.getName(), it.next().getName());
assertEquals(dsi.getName(), it.next().getName());
assertEquals(si.getName(), it.next().getName());
assertEquals(image.getName(), it.next().getName());
assertEquals(tags.getName(), it.next().getName());
// Look inside another
DirectoryEntry imageD = (DirectoryEntry)image;
assertEquals(7, imageD.getEntryCount());
fs.close();
}
}
/**
* Tests that we can get the correct contents for
* a document in the filesystem
*/
@Test
public void getDocumentEntry() throws Exception {
for(NPOIFSFileSystem fs : get512and4kFileAndInput()) {
DirectoryEntry root = fs.getRoot();
Entry si = root.getEntry("\u0005SummaryInformation");
assertEquals(true, si.isDocumentEntry());
DocumentNode doc = (DocumentNode)si;
// Check we can read it
assertContentsMatches(null, doc);
// Now try to build the property set
DocumentInputStream inp = new NDocumentInputStream(doc);
PropertySet ps = PropertySetFactory.create(inp);
SummaryInformation inf = (SummaryInformation)ps;
// Check some bits in it
assertEquals(null, inf.getApplicationName());
assertEquals(null, inf.getAuthor());
assertEquals(null, inf.getSubject());
assertEquals(131333, inf.getOSVersion());
// Finish with this one
inp.close();
// Try the other summary information
si = root.getEntry("\u0005DocumentSummaryInformation");
assertEquals(true, si.isDocumentEntry());
doc = (DocumentNode)si;
assertContentsMatches(null, doc);
inp = new NDocumentInputStream(doc);
ps = PropertySetFactory.create(inp);
DocumentSummaryInformation dinf = (DocumentSummaryInformation)ps;
assertEquals(131333, dinf.getOSVersion());
fs.close();
}
}
/**
* Read a file, write it and read it again.
* Then, alter+add some streams, write and read
*/
@Test
public void readWriteRead() throws Exception {
SummaryInformation sinf = null;
DocumentSummaryInformation dinf = null;
DirectoryEntry root = null, testDir = null;
for(NPOIFSFileSystem fs : get512and4kFileAndInput()) {
// Check we can find the entries we expect
root = fs.getRoot();
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Tags"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
// Write out, re-load
fs = writeOutAndReadBack(fs);
// Check they're still there
root = fs.getRoot();
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Tags"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
// Check the contents of them - parse the summary block and check
sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, sinf.getOSVersion());
dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, dinf.getOSVersion());
// Add a test mini stream
testDir = root.createDirectory("Testing 123");
testDir.createDirectory("Testing 456");
testDir.createDirectory("Testing 789");
byte[] mini = new byte[] { 42, 0, 1, 2, 3, 4, 42 };
testDir.createDocument("Mini", new ByteArrayInputStream(mini));
// Write out, re-load
fs = writeOutAndReadBack(fs);
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(6, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Tags"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
// Check old and new are there
sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, sinf.getOSVersion());
dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, dinf.getOSVersion());
assertContentsMatches(mini, (DocumentEntry)testDir.getEntry("Mini"));
// Write out and read once more, just to be sure
fs = writeOutAndReadBack(fs);
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(6, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Tags"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, sinf.getOSVersion());
dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, dinf.getOSVersion());
assertContentsMatches(mini, (DocumentEntry)testDir.getEntry("Mini"));
// Add a full stream, delete a full stream
byte[] main4096 = new byte[4096];
main4096[0] = -10;
main4096[4095] = -11;
testDir.createDocument("Normal4096", new ByteArrayInputStream(main4096));
root.getEntry("Tags").delete();
// Write out, re-load
fs = writeOutAndReadBack(fs);
// Check it's all there
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
// Check old and new are there
sinf = (SummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(SummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, sinf.getOSVersion());
dinf = (DocumentSummaryInformation)PropertySetFactory.create(new NDocumentInputStream(
(DocumentEntry)root.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME)));
assertEquals(131333, dinf.getOSVersion());
assertContentsMatches(mini, (DocumentEntry)testDir.getEntry("Mini"));
assertContentsMatches(main4096, (DocumentEntry)testDir.getEntry("Normal4096"));
// Delete a directory, and add one more
testDir.getEntry("Testing 456").delete();
testDir.createDirectory("Testing ABC");
// Save
fs = writeOutAndReadBack(fs);
// Check
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
assertEquals(4, testDir.getEntryCount());
assertThat(testDir.getEntryNames(), hasItem("Mini"));
assertThat(testDir.getEntryNames(), hasItem("Normal4096"));
assertThat(testDir.getEntryNames(), hasItem("Testing 789"));
assertThat(testDir.getEntryNames(), hasItem("Testing ABC"));
// Add another mini stream
byte[] mini2 = new byte[] { -42, 0, -1, -2, -3, -4, -42 };
testDir.createDocument("Mini2", new ByteArrayInputStream(mini2));
// Save, load, check
fs = writeOutAndReadBack(fs);
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
assertEquals(5, testDir.getEntryCount());
assertThat(testDir.getEntryNames(), hasItem("Mini"));
assertThat(testDir.getEntryNames(), hasItem("Mini2"));
assertThat(testDir.getEntryNames(), hasItem("Normal4096"));
assertThat(testDir.getEntryNames(), hasItem("Testing 789"));
assertThat(testDir.getEntryNames(), hasItem("Testing ABC"));
assertContentsMatches(mini, (DocumentEntry)testDir.getEntry("Mini"));
assertContentsMatches(mini2, (DocumentEntry)testDir.getEntry("Mini2"));
assertContentsMatches(main4096, (DocumentEntry)testDir.getEntry("Normal4096"));
// Delete a mini stream, add one more
testDir.getEntry("Mini").delete();
byte[] mini3 = new byte[] { 42, 0, 42, 0, 42, 0, 42 };
testDir.createDocument("Mini3", new ByteArrayInputStream(mini3));
// Save, load, check
fs = writeOutAndReadBack(fs);
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
assertEquals(5, testDir.getEntryCount());
assertThat(testDir.getEntryNames(), hasItem("Mini2"));
assertThat(testDir.getEntryNames(), hasItem("Mini3"));
assertThat(testDir.getEntryNames(), hasItem("Normal4096"));
assertThat(testDir.getEntryNames(), hasItem("Testing 789"));
assertThat(testDir.getEntryNames(), hasItem("Testing ABC"));
assertContentsMatches(mini2, (DocumentEntry)testDir.getEntry("Mini2"));
assertContentsMatches(mini3, (DocumentEntry)testDir.getEntry("Mini3"));
assertContentsMatches(main4096, (DocumentEntry)testDir.getEntry("Normal4096"));
// Change some existing streams
NPOIFSDocument mini2Doc = new NPOIFSDocument((DocumentNode)testDir.getEntry("Mini2"));
mini2Doc.replaceContents(new ByteArrayInputStream(mini));
byte[] main4106 = new byte[4106];
main4106[0] = 41;
main4106[4105] = 42;
NPOIFSDocument mainDoc = new NPOIFSDocument((DocumentNode)testDir.getEntry("Normal4096"));
mainDoc.replaceContents(new ByteArrayInputStream(main4106));
// Re-check
fs = writeOutAndReadBack(fs);
root = fs.getRoot();
testDir = (DirectoryEntry)root.getEntry("Testing 123");
assertEquals(5, root.getEntryCount());
assertThat(root.getEntryNames(), hasItem("Thumbnail"));
assertThat(root.getEntryNames(), hasItem("Image"));
assertThat(root.getEntryNames(), hasItem("Testing 123"));
assertThat(root.getEntryNames(), hasItem("\u0005DocumentSummaryInformation"));
assertThat(root.getEntryNames(), hasItem("\u0005SummaryInformation"));
assertEquals(5, testDir.getEntryCount());
assertThat(testDir.getEntryNames(), hasItem("Mini2"));
assertThat(testDir.getEntryNames(), hasItem("Mini3"));
assertThat(testDir.getEntryNames(), hasItem("Normal4096"));
assertThat(testDir.getEntryNames(), hasItem("Testing 789"));
assertThat(testDir.getEntryNames(), hasItem("Testing ABC"));
assertContentsMatches(mini, (DocumentEntry)testDir.getEntry("Mini2"));
assertContentsMatches(mini3, (DocumentEntry)testDir.getEntry("Mini3"));
assertContentsMatches(main4106, (DocumentEntry)testDir.getEntry("Normal4096"));
// All done
fs.close();
}
}
/**
* Create a new file, write it and read it again
* Then, add some streams, write and read
*/
@Test
@SuppressWarnings("resource")
public void createWriteRead() throws Exception {
NPOIFSFileSystem fs = new NPOIFSFileSystem();
DocumentEntry miniDoc;
DocumentEntry normDoc;
// Initially has a BAT but not SBAT
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(2));
// Check that the SBAT is empty
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getRoot().getProperty().getStartBlock());
// Check that no properties table has been written yet
assertEquals(POIFSConstants.END_OF_CHAIN, fs._get_property_table().getStartBlock());
// Write and read it
fs = writeOutAndReadBack(fs);
// Property table entries have been added to the blocks
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(3));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getRoot().getProperty().getStartBlock());
assertEquals(2, fs._get_property_table().getStartBlock());
// Put everything within a new directory
DirectoryEntry testDir = fs.createDirectory("Test Directory");
// Add a new Normal Stream (Normal Streams minimum 4096 bytes)
byte[] main4096 = new byte[4096];
main4096[0] = -10;
main4096[4095] = -11;
testDir.createDocument("Normal4096", new ByteArrayInputStream(main4096));
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
assertEquals(4, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(10));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(11));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getRoot().getProperty().getStartBlock());
// Add a bigger Normal Stream
byte[] main5124 = new byte[5124];
main5124[0] = -22;
main5124[5123] = -33;
testDir.createDocument("Normal5124", new ByteArrayInputStream(main5124));
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
assertEquals(4, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(10));
assertEquals(12, fs.getNextBlock(11));
assertEquals(13, fs.getNextBlock(12));
assertEquals(14, fs.getNextBlock(13));
assertEquals(15, fs.getNextBlock(14));
assertEquals(16, fs.getNextBlock(15));
assertEquals(17, fs.getNextBlock(16));
assertEquals(18, fs.getNextBlock(17));
assertEquals(19, fs.getNextBlock(18));
assertEquals(20, fs.getNextBlock(19));
assertEquals(21, fs.getNextBlock(20));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(21));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(22));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getRoot().getProperty().getStartBlock());
// Now Add a mini stream
byte[] mini = new byte[] { 42, 0, 1, 2, 3, 4, 42 };
testDir.createDocument("Mini", new ByteArrayInputStream(mini));
// Mini stream will get one block for fat + one block for data
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
assertEquals(4, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(10));
assertEquals(12, fs.getNextBlock(11));
assertEquals(13, fs.getNextBlock(12));
assertEquals(14, fs.getNextBlock(13));
assertEquals(15, fs.getNextBlock(14));
assertEquals(16, fs.getNextBlock(15));
assertEquals(17, fs.getNextBlock(16));
assertEquals(18, fs.getNextBlock(17));
assertEquals(19, fs.getNextBlock(18));
assertEquals(20, fs.getNextBlock(19));
assertEquals(21, fs.getNextBlock(20));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(21));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(22));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(23));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(24));
// Check the mini stream location was set
// (22 is mini fat, 23 is first mini stream block)
assertEquals(23, fs.getRoot().getProperty().getStartBlock());
// Write and read back
fs = writeOutAndReadBack(fs);
HeaderBlock header = writeOutAndReadHeader(fs);
// Check the header has the right points in it
assertEquals(1, header.getBATCount());
assertEquals(0, header.getBATArray()[0]);
assertEquals(2, header.getPropertyStart());
assertEquals(1, header.getSBATCount());
assertEquals(22, header.getSBATStart());
assertEquals(23, fs._get_property_table().getRoot().getStartBlock());
// Block use should be almost the same, except the properties
// stream will have grown out to cover 2 blocks
// Check the block use is all unchanged
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(24, fs.getNextBlock(2)); // Properties now extends over 2 blocks
assertEquals(4, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(10)); // End of normal4096
assertEquals(12, fs.getNextBlock(11));
assertEquals(13, fs.getNextBlock(12));
assertEquals(14, fs.getNextBlock(13));
assertEquals(15, fs.getNextBlock(14));
assertEquals(16, fs.getNextBlock(15));
assertEquals(17, fs.getNextBlock(16));
assertEquals(18, fs.getNextBlock(17));
assertEquals(19, fs.getNextBlock(18));
assertEquals(20, fs.getNextBlock(19));
assertEquals(21, fs.getNextBlock(20));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(21)); // End of normal5124
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(22)); // Mini Stream FAT
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(23)); // Mini Stream data
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(24)); // Properties #2
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(25));
// Check some data
assertEquals(1, fs.getRoot().getEntryCount());
testDir = (DirectoryEntry)fs.getRoot().getEntry("Test Directory");
assertEquals(3, testDir.getEntryCount());
miniDoc = (DocumentEntry)testDir.getEntry("Mini");
assertContentsMatches(mini, miniDoc);
normDoc = (DocumentEntry)testDir.getEntry("Normal4096");
assertContentsMatches(main4096, normDoc);
normDoc = (DocumentEntry)testDir.getEntry("Normal5124");
assertContentsMatches(main5124, normDoc);
// Delete a couple of streams
miniDoc.delete();
normDoc.delete();
// Check - will have un-used sectors now
fs = writeOutAndReadBack(fs);
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2)); // Props back in 1 block
assertEquals(4, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(10)); // End of normal4096
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(11));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(12));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(13));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(14));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(15));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(16));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(17));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(18));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(19));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(20));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(21));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(22)); // Mini Stream FAT
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(23)); // Mini Stream data
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(24)); // Properties gone
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(25));
// All done
fs.close();
}
@Test
public void addBeforeWrite() throws Exception {
NPOIFSFileSystem fs = new NPOIFSFileSystem();
DocumentEntry miniDoc;
DocumentEntry normDoc;
HeaderBlock hdr;
// Initially has BAT + Properties but nothing else
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(2));
hdr = writeOutAndReadHeader(fs);
// No mini stream, and no xbats
// Will have fat then properties stream
assertEquals(1, hdr.getBATCount());
assertEquals(0, hdr.getBATArray()[0]);
assertEquals(2, hdr.getPropertyStart());
assertEquals(POIFSConstants.END_OF_CHAIN, hdr.getSBATStart());
assertEquals(POIFSConstants.END_OF_CHAIN, hdr.getXBATIndex());
assertEquals(POIFSConstants.SMALLER_BIG_BLOCK_SIZE*4, fs.size());
// Get a clean filesystem to start with
fs = new NPOIFSFileSystem();
// Put our test files in a non-standard place
DirectoryEntry parentDir = fs.createDirectory("Parent Directory");
DirectoryEntry testDir = parentDir.createDirectory("Test Directory");
// Add to the mini stream
byte[] mini = new byte[] { 42, 0, 1, 2, 3, 4, 42 };
testDir.createDocument("Mini", new ByteArrayInputStream(mini));
// Add to the main stream
byte[] main4096 = new byte[4096];
main4096[0] = -10;
main4096[4095] = -11;
testDir.createDocument("Normal4096", new ByteArrayInputStream(main4096));
// Check the mini stream was added, then the main stream
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2)); // Mini Fat
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(3)); // Mini Stream
assertEquals(5, fs.getNextBlock(4)); // Main Stream
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(11, fs.getNextBlock(10));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(11));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(12));
assertEquals(POIFSConstants.SMALLER_BIG_BLOCK_SIZE*13, fs.size());
// Check that we can read the right data pre-write
miniDoc = (DocumentEntry)testDir.getEntry("Mini");
assertContentsMatches(mini, miniDoc);
normDoc = (DocumentEntry)testDir.getEntry("Normal4096");
assertContentsMatches(main4096, normDoc);
// Write, read, check
hdr = writeOutAndReadHeader(fs);
fs = writeOutAndReadBack(fs);
// Check the header details - will have the sbat near the start,
// then the properties at the end
assertEquals(1, hdr.getBATCount());
assertEquals(0, hdr.getBATArray()[0]);
assertEquals(2, hdr.getSBATStart());
assertEquals(12, hdr.getPropertyStart());
assertEquals(POIFSConstants.END_OF_CHAIN, hdr.getXBATIndex());
// Check the block allocation is unchanged, other than
// the properties stream going in at the end
assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, fs.getNextBlock(0));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(1));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(2));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(3));
assertEquals(5, fs.getNextBlock(4));
assertEquals(6, fs.getNextBlock(5));
assertEquals(7, fs.getNextBlock(6));
assertEquals(8, fs.getNextBlock(7));
assertEquals(9, fs.getNextBlock(8));
assertEquals(10, fs.getNextBlock(9));
assertEquals(11, fs.getNextBlock(10));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(11));
assertEquals(13, fs.getNextBlock(12));
assertEquals(POIFSConstants.END_OF_CHAIN, fs.getNextBlock(13));
assertEquals(POIFSConstants.UNUSED_BLOCK, fs.getNextBlock(14));
assertEquals(POIFSConstants.SMALLER_BIG_BLOCK_SIZE*15, fs.size());
// Check the data
DirectoryEntry fsRoot = fs.getRoot();
assertEquals(1, fsRoot.getEntryCount());
parentDir = (DirectoryEntry)fsRoot.getEntry("Parent Directory");
assertEquals(1, parentDir.getEntryCount());
testDir = (DirectoryEntry)parentDir.getEntry("Test Directory");
assertEquals(2, testDir.getEntryCount());
miniDoc = (DocumentEntry)testDir.getEntry("Mini");
assertContentsMatches(mini, miniDoc);
normDoc = (DocumentEntry)testDir.getEntry("Normal4096");
assertContentsMatches(main4096, normDoc);
// Add one more stream to each, then save and re-load
byte[] mini2 = new byte[] { -42, 0, -1, -2, -3, -4, -42 };
testDir.createDocument("Mini2", new ByteArrayInputStream(mini2));
// Add to the main stream
byte[] main4106 = new byte[4106];
main4106[0] = 41;
main4106[4105] = 42;
testDir.createDocument("Normal4106", new ByteArrayInputStream(main4106));
// Recheck the data in all 4 streams
fs = writeOutAndReadBack(fs);
fsRoot = fs.getRoot();
assertEquals(1, fsRoot.getEntryCount());
parentDir = (DirectoryEntry)fsRoot.getEntry("Parent Directory");
assertEquals(1, parentDir.getEntryCount());
testDir = (DirectoryEntry)parentDir.getEntry("Test Directory");
assertEquals(4, testDir.getEntryCount());
miniDoc = (DocumentEntry)testDir.getEntry("Mini");
assertContentsMatches(mini, miniDoc);
miniDoc = (DocumentEntry)testDir.getEntry("Mini2");
assertContentsMatches(mini2, miniDoc);
normDoc = (DocumentEntry)testDir.getEntry("Normal4106");
assertContentsMatches(main4106, normDoc);
}
/**
* Test that we can read a file with NPOIFS, create a new NPOIFS instance,
* write it out, read it with POIFS, and see the original data
*/
@Test
public void NPOIFSReadCopyWritePOIFSRead() throws Exception {
File testFile = POIDataSamples.getSpreadSheetInstance().getFile("Simple.xls");
NPOIFSFileSystem src = new NPOIFSFileSystem(testFile);
byte wbDataExp[] = IOUtils.toByteArray(src.createDocumentInputStream("Workbook"));
NPOIFSFileSystem nfs = new NPOIFSFileSystem();
EntryUtils.copyNodes(src.getRoot(), nfs.getRoot());
src.close();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
nfs.writeFilesystem(bos);
nfs.close();
POIFSFileSystem pfs = new POIFSFileSystem(new ByteArrayInputStream(bos.toByteArray()));
byte wbDataAct[] = IOUtils.toByteArray(pfs.createDocumentInputStream("Workbook"));
assertThat(wbDataExp, equalTo(wbDataAct));
}
}