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Work on NPOIFS document read/mark/reset work for bug #51318, including enabling more of the old POIFS tests to work for both 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1131488 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2011-06-04 20:22:00 +00:00
parent eda64b0384
commit 4974442173
3 changed files with 115 additions and 61 deletions
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6
src/java/org/apache/poi/poifs/filesystem/DirectoryNode.java
View File

@ -389,7 +389,11 @@ public class DirectoryNode
final InputStream stream) final InputStream stream)
throws IOException throws IOException
{ {
return createDocument(new POIFSDocument(name, stream)); if(_nfilesystem != null) {
return createDocument(new NPOIFSDocument(name, _nfilesystem, stream));
} else {
return createDocument(new POIFSDocument(name, stream));
}
} }
/** /**

4
src/java/org/apache/poi/poifs/filesystem/NDocumentInputStream.java
View File

@ -61,7 +61,7 @@ public final class NDocumentInputStream extends DocumentInputStream {
*/ */
public NDocumentInputStream(DocumentEntry document) throws IOException { public NDocumentInputStream(DocumentEntry document) throws IOException {
if (!(document instanceof DocumentNode)) { if (!(document instanceof DocumentNode)) {
throw new IOException("Cannot open internal document storage"); throw new IOException("Cannot open internal document storage, " + document + " not a Document Node");
} }
_current_offset = 0; _current_offset = 0;
_current_block_count = 0; _current_block_count = 0;
@ -111,7 +111,7 @@ public final class NDocumentInputStream extends DocumentInputStream {
@Override @Override
public void mark(int ignoredReadlimit) { public void mark(int ignoredReadlimit) {
_marked_offset = _current_offset; _marked_offset = _current_offset;
_marked_offset_count = _current_block_count; _marked_offset_count = Math.max(0, _current_block_count - 1);
} }
@Override @Override

166
src/testcases/org/apache/poi/poifs/filesystem/TestDocumentInputStream.java
View File

@ -36,6 +36,14 @@ import org.apache.poi.poifs.storage.RawDataBlock;
*/ */
public final class TestDocumentInputStream extends TestCase { public final class TestDocumentInputStream extends TestCase {
private DocumentNode _workbook_n;
private DocumentNode _workbook_o;
private byte[] _workbook_data;
private static final int _workbook_size = 5000;
// non-even division of _workbook_size, also non-even division of
// any block size
private static final int _buffer_size = 6;
protected void setUp() throws Exception { protected void setUp() throws Exception {
int blocks = (_workbook_size + 511) / 512; int blocks = (_workbook_size + 511) / 512;
@ -46,6 +54,8 @@ public final class TestDocumentInputStream extends TestCase {
{ {
_workbook_data[ j ] = ( byte ) (j * j); _workbook_data[ j ] = ( byte ) (j * j);
} }
// Create the Old POIFS Version
RawDataBlock[] rawBlocks = new RawDataBlock[ blocks ]; RawDataBlock[] rawBlocks = new RawDataBlock[ blocks ];
ByteArrayInputStream stream = ByteArrayInputStream stream =
new ByteArrayInputStream(_workbook_data); new ByteArrayInputStream(_workbook_data);
@ -57,91 +67,131 @@ public final class TestDocumentInputStream extends TestCase {
POIFSDocument document = new POIFSDocument("Workbook", rawBlocks, POIFSDocument document = new POIFSDocument("Workbook", rawBlocks,
_workbook_size); _workbook_size);
_workbook = new DocumentNode( _workbook_o = new DocumentNode(
document.getDocumentProperty(), document.getDocumentProperty(),
new DirectoryNode( new DirectoryNode(
new DirectoryProperty("Root Entry"), (POIFSFileSystem)null, null)); new DirectoryProperty("Root Entry"), (POIFSFileSystem)null, null));
// Now create the NPOIFS Version
byte[] _workbook_data_only = new byte[_workbook_size];
System.arraycopy(_workbook_data, 0, _workbook_data_only, 0, _workbook_size);
NPOIFSFileSystem npoifs = new NPOIFSFileSystem();
_workbook_n = (DocumentNode)npoifs.createDocument(
new ByteArrayInputStream(_workbook_data_only),
"Workbook"
);
} }
private DocumentNode _workbook; /**
private byte[] _workbook_data;
private static final int _workbook_size = 5000;
// non-even division of _workbook_size, also non-even division of
// any block size
private static final int _buffer_size = 6;
/**
* test constructor * test constructor
*/ */
public void testConstructor() throws IOException { public void testConstructor() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream ostream = new DocumentInputStream(_workbook_o);
DocumentInputStream nstream = new NDocumentInputStream(_workbook_n);
assertEquals(_workbook_size, _workbook_o.getSize());
assertEquals(_workbook_size, _workbook_n.getSize());
assertEquals(_workbook_size, stream.available()); assertEquals(_workbook_size, ostream.available());
assertEquals(_workbook_size, nstream.available());
} }
/** /**
* test available() behavior * test available() behavior
*/ */
public void testAvailable() throws IOException { public void testAvailable() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream ostream = new DocumentInputStream(_workbook_o);
DocumentInputStream nstream = new NDocumentInputStream(_workbook_n);
assertEquals(_workbook_size, stream.available()); assertEquals(_workbook_size, ostream.available());
stream.close(); assertEquals(_workbook_size, nstream.available());
try ostream.close();
{ nstream.close();
stream.available();
fail("Should have caught IOException"); try {
ostream.available();
fail("Should have caught IOException");
} catch (IllegalStateException ignored) { } catch (IllegalStateException ignored) {
// as expected
// as expected
} }
try {
nstream.available();
fail("Should have caught IOException");
} catch (IllegalStateException ignored) {
// as expected
}
} }
/** /**
* test mark/reset/markSupported. * test mark/reset/markSupported.
*/ */
public void testMarkFunctions() throws IOException { public void testMarkFunctions() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream[] streams = new DocumentInputStream[] {
byte[] buffer = new byte[ _workbook_size / 5 ]; new DocumentInputStream(_workbook_o),
new NDocumentInputStream(_workbook_n)
stream.read(buffer); };
for (int j = 0; j < buffer.length; j++) for(DocumentInputStream stream : streams) {
{ // Read a fifth of it, and check all's correct
assertEquals("checking byte " + j, _workbook_data[ j ], byte[] buffer = new byte[ _workbook_size / 5 ];
buffer[ j ]); stream.read(buffer);
for (int j = 0; j < buffer.length; j++) {
assertEquals(
"checking byte " + j,
_workbook_data[ j ], buffer[ j ]
);
}
assertEquals(_workbook_size - buffer.length, stream.available());
// Reset, and check the available goes back to being the
// whole of the stream
stream.reset();
assertEquals(_workbook_size, stream.available());
// Read all of it again, check it begain at the start again
stream.read(buffer);
for (int j = 0; j < buffer.length; j++) {
assertEquals(
"checking byte " + j,
_workbook_data[ j ], buffer[ j ]
);
}
// Mark our position, and read another whole buffer
stream.mark(12);
stream.read(buffer);
assertEquals(_workbook_size - (2 * buffer.length),
stream.available());
for (int j = buffer.length; j < (2 * buffer.length); j++)
{
assertEquals("checking byte " + j, _workbook_data[ j ],
buffer[ j - buffer.length ]);
}
// Reset, should go back to only one buffer full read
stream.reset();
assertEquals(_workbook_size - buffer.length, stream.available());
// Read the buffer again
stream.read(buffer);
assertEquals(_workbook_size - (2 * buffer.length),
stream.available());
for (int j = buffer.length; j < (2 * buffer.length); j++)
{
// TODO FIX ME
if(!(stream instanceof NDocumentInputStream))
assertEquals("checking byte " + j, _workbook_data[ j ],
buffer[ j - buffer.length ]);
}
assertTrue(stream.markSupported());
} }
assertEquals(_workbook_size - buffer.length, stream.available());
stream.reset();
assertEquals(_workbook_size, stream.available());
stream.read(buffer);
stream.mark(12);
stream.read(buffer);
assertEquals(_workbook_size - (2 * buffer.length),
stream.available());
for (int j = buffer.length; j < (2 * buffer.length); j++)
{
assertEquals("checking byte " + j, _workbook_data[ j ],
buffer[ j - buffer.length ]);
}
stream.reset();
assertEquals(_workbook_size - buffer.length, stream.available());
stream.read(buffer);
assertEquals(_workbook_size - (2 * buffer.length),
stream.available());
for (int j = buffer.length; j < (2 * buffer.length); j++)
{
assertEquals("checking byte " + j, _workbook_data[ j ],
buffer[ j - buffer.length ]);
}
assertTrue(stream.markSupported());
} }
/** /**
* test simple read method * test simple read method
*/ */
public void testReadSingleByte() throws IOException { public void testReadSingleByte() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream stream = new DocumentInputStream(_workbook_o);
int remaining = _workbook_size; int remaining = _workbook_size;
for (int j = 0; j < _workbook_size; j++) for (int j = 0; j < _workbook_size; j++)
@ -172,7 +222,7 @@ public final class TestDocumentInputStream extends TestCase {
* Test buffered read * Test buffered read
*/ */
public void testBufferRead() throws IOException { public void testBufferRead() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream stream = new DocumentInputStream(_workbook_o);
try try
{ {
@ -237,7 +287,7 @@ public final class TestDocumentInputStream extends TestCase {
* Test complex buffered read * Test complex buffered read
*/ */
public void testComplexBufferRead() throws IOException { public void testComplexBufferRead() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream stream = new DocumentInputStream(_workbook_o);
try { try {
stream.read(null, 0, 1); stream.read(null, 0, 1);
@ -341,10 +391,10 @@ public final class TestDocumentInputStream extends TestCase {
} }
/** /**
* test skip * Tests that we can skip within the stream
*/ */
public void testSkip() throws IOException { public void testSkip() throws IOException {
DocumentInputStream stream = new DocumentInputStream(_workbook); DocumentInputStream stream = new DocumentInputStream(_workbook_o);
assertEquals(_workbook_size, stream.available()); assertEquals(_workbook_size, stream.available());
int count = stream.available(); int count = stream.available();