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Port more NIO changes over from trunk

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git-svn-id: https://svn.apache.org/repos/asf/poi/branches/NIO_32_BRANCH@1055375 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2011-01-05 09:38:10 +00:00
parent 58a6793fdd
commit c1e2c16412
10 changed files with 182 additions and 37 deletions
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20
src/java/org/apache/poi/hssf/usermodel/HSSFWorkbook.java
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@ -249,7 +249,25 @@ public class HSSFWorkbook extends POIDocument
public HSSFWorkbook(DirectoryNode directory, POIFSFileSystem fs, boolean preserveNodes)
throws IOException
{
super(directory, fs);
this(directory, preserveNodes);
}
/**
* given a POI POIFSFileSystem object, and a specific directory
* within it, read in its Workbook and populate the high and
* low level models. If you're reading in a workbook...start here.
*
* @param directory the POI filesystem directory to process from
* @param preserveNodes whether to preseve other nodes, such as
* macros. This takes more memory, so only say yes if you
* need to. If set, will store all of the POIFSFileSystem
* in memory
* @see org.apache.poi.poifs.filesystem.POIFSFileSystem
* @exception IOException if the stream cannot be read
*/
public HSSFWorkbook(DirectoryNode directory, boolean preserveNodes)
throws IOException
{
super(directory);
String workbookName = getWorkbookDirEntryName(directory);
this.preserveNodes = preserveNodes;

2
src/java/org/apache/poi/poifs/filesystem/NPOIFSDocument.java
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@ -51,7 +51,7 @@ public final class NPOIFSDocument implements POIFSViewable {
this._property = property;
this._filesystem = filesystem;
if(property.getSize() <= POIFSConstants.BIG_BLOCK_MINIMUM_DOCUMENT_SIZE) {
if(property.getSize() < POIFSConstants.BIG_BLOCK_MINIMUM_DOCUMENT_SIZE) {
_stream = new NPOIFSStream(_filesystem.getMiniStore(), property.getStartBlock());
_block_size = _filesystem.getMiniStore().getBlockStoreBlockSize();
} else {

81
src/java/org/apache/poi/poifs/filesystem/NPOIFSFileSystem.java
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@ -107,7 +107,7 @@ public class NPOIFSFileSystem extends BlockStore
/**
* Creates a POIFSFileSystem from a <tt>File</tt>. This uses less memory than
* creating from an <tt>InputStream</tt>.
* creating from an <tt>InputStream</tt>. The File will be opened read-only
*
* Note that with this constructor, you will need to call {@link #close()}
* when you're done to have the underlying file closed, as the file is
@ -119,22 +119,71 @@ public class NPOIFSFileSystem extends BlockStore
*/
public NPOIFSFileSystem(File file)
throws IOException
{
this(file, true);
}
/**
* Creates a POIFSFileSystem from a <tt>File</tt>. This uses less memory than
* creating from an <tt>InputStream</tt>.
*
* Note that with this constructor, you will need to call {@link #close()}
* when you're done to have the underlying file closed, as the file is
* kept open during normal operation to read the data out.
*
* @param file the File from which to read the data
*
* @exception IOException on errors reading, or on invalid data
*/
public NPOIFSFileSystem(File file, boolean readOnly)
throws IOException
{
this(
(new RandomAccessFile(file, readOnly? "r" : "rw")).getChannel(),
true
);
}
/**
* Creates a POIFSFileSystem from an open <tt>FileChannel</tt>. This uses
* less memory than creating from an <tt>InputStream</tt>.
*
* Note that with this constructor, you will need to call {@link #close()}
* when you're done to have the underlying Channel closed, as the channel is
* kept open during normal operation to read the data out.
*
* @param channel the FileChannel from which to read the data
*
* @exception IOException on errors reading, or on invalid data
*/
public NPOIFSFileSystem(FileChannel channel)
throws IOException
{
this(channel, false);
}
private NPOIFSFileSystem(FileChannel channel, boolean closeChannelOnError)
throws IOException
{
this();
// Open the underlying channel
FileChannel channel = (new RandomAccessFile(file, "r")).getChannel();
// Get the header
ByteBuffer headerBuffer = ByteBuffer.allocate(POIFSConstants.SMALLER_BIG_BLOCK_SIZE);
IOUtils.readFully(channel, headerBuffer);
// Have the header processed
_header = new HeaderBlock(headerBuffer);
// Now process the various entries
_data = new FileBackedDataSource(channel);
readCoreContents();
try {
// Get the header
ByteBuffer headerBuffer = ByteBuffer.allocate(POIFSConstants.SMALLER_BIG_BLOCK_SIZE);
IOUtils.readFully(channel, headerBuffer);
// Have the header processed
_header = new HeaderBlock(headerBuffer);
// Now process the various entries
_data = new FileBackedDataSource(channel);
readCoreContents();
} catch(IOException e) {
if(closeChannelOnError) {
channel.close();
}
throw e;
}
}
/**
@ -435,7 +484,7 @@ public class NPOIFSFileSystem extends BlockStore
// Oh joy, we need a new XBAT too...
xbat = createBAT(offset+1, false);
xbat.setValueAt(0, offset);
bat.setValueAt(offset+1, POIFSConstants.DIFAT_SECTOR_BLOCK);
bat.setValueAt(1, POIFSConstants.DIFAT_SECTOR_BLOCK);
// Will go one place higher as XBAT added in
offset++;

3
src/scratchpad/src/org/apache/poi/hslf/EncryptedSlideShow.java
View File

@ -54,9 +54,8 @@ public class EncryptedSlideShow
public static boolean checkIfEncrypted(HSLFSlideShow hss) {
// Easy way to check - contains a stream
// "EncryptedSummary"
POIFSFileSystem fs = hss.getPOIFSFileSystem();
try {
fs.getRoot().getEntry("EncryptedSummary");
hss.getPOIFSDirectory().getEntry("EncryptedSummary");
return true;
} catch(FileNotFoundException fnfe) {
// Doesn't have encrypted properties

3
src/scratchpad/src/org/apache/poi/hslf/HSLFSlideShow.java
View File

@ -78,6 +78,9 @@ public final class HSLFSlideShow extends POIDocument {
protected POIFSFileSystem getPOIFSFileSystem() {
return directory.getFileSystem();
}
protected DirectoryNode getPOIFSDirectory() {
return directory;
}
/**
* Constructs a Powerpoint document from fileName. Parses the document

16
src/scratchpad/src/org/apache/poi/hwpf/HWPFDocument.java
View File

@ -163,14 +163,28 @@ public class HWPFDocument extends POIDocument
* in a POIFSFileSystem, probably not the default.
* Used typically to open embeded documents.
*
* @param directory The Directory that contains the Word document.
* @param pfilesystem The POIFSFileSystem that contains the Word document.
* @throws IOException If there is an unexpected IOException from the passed
* in POIFSFileSystem.
*/
public HWPFDocument(DirectoryNode directory, POIFSFileSystem pfilesystem) throws IOException
{
this(directory);
}
/**
* This constructor loads a Word document from a specific point
* in a POIFSFileSystem, probably not the default.
* Used typically to open embeded documents.
*
* @param directory The Directory that contains the Word document.
* @throws IOException If there is an unexpected IOException from the passed
* in POIFSFileSystem.
*/
public HWPFDocument(DirectoryNode directory) throws IOException
{
// Sort out the hpsf properties
super(directory, pfilesystem);
super(directory);
readProperties();
// read in the main stream.

10
src/scratchpad/src/org/apache/poi/hwpf/extractor/WordExtractor.java
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@ -28,6 +28,7 @@ import org.apache.poi.hwpf.model.TextPiece;
import org.apache.poi.hwpf.usermodel.HeaderStories;
import org.apache.poi.hwpf.usermodel.Paragraph;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
/**
@ -59,6 +60,15 @@ public class WordExtractor extends POIOLE2TextExtractor {
this.fs = fs;
}
/**
* Create a new Word Extractor
* @param dir DirectoryNode containing the word file
*/
public WordExtractor(DirectoryNode dir) throws IOException {
this(new HWPFDocument(dir));
this.fs = fs;
}
/**
* Create a new Word Extractor
* @param doc The HWPFDocument to extract from

29
src/scratchpad/testcases/org/apache/poi/hwpf/extractor/TestWordExtractor.java
View File

@ -16,12 +16,14 @@
*/
package org.apache.poi.hwpf.extractor;
import java.io.File;
import java.io.FileInputStream;
import junit.framework.TestCase;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
/**
@ -225,4 +227,31 @@ public class TestWordExtractor extends TestCase {
text.indexOf("The footer, with") > -1
);
}
/**
* Tests that we can work with both {@link POIFSFileSystem}
* and {@link NPOIFSFileSystem}
*/
public void testDifferentPOIFS() throws Exception {
String dirname = System.getProperty("HWPF.testdata.path");
File f = new File(dirname, "test2.doc");
// Open the two filesystems
DirectoryNode[] files = new DirectoryNode[2];
files[0] = (new POIFSFileSystem(new FileInputStream(f))).getRoot();
files[1] = (new NPOIFSFileSystem(f)).getRoot();
// Open directly
for(DirectoryNode dir : files) {
WordExtractor extractor = new WordExtractor(dir);
assertEquals(p_text1_block, extractor.getText());
}
// Open via a HWPFDocument
for(DirectoryNode dir : files) {
HWPFDocument doc = new HWPFDocument(dir);
WordExtractor extractor = new WordExtractor(doc);
assertEquals(p_text1_block, extractor.getText());
}
}
}

25
src/testcases/org/apache/poi/hssf/HSSFTestDataSamples.java
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@ -48,7 +48,14 @@ public final class HSSFTestDataSamples {
* @return an open <tt>InputStream</tt> for the specified sample file
*/
public static InputStream openSampleFileStream(String sampleFileName) {
File f = getSampeFile(sampleFileName);
try {
return new FileInputStream(f);
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
}
public static File getSampeFile(String sampleFileName) {
if(!_isInitialised) {
try {
initialise();
@ -56,16 +63,6 @@ public final class HSSFTestDataSamples {
_isInitialised = true;
}
}
if (_sampleDataIsAvaliableOnClassPath) {
InputStream result = openClasspathResource(sampleFileName);
if(result == null) {
throw new RuntimeException("specified test sample file '" + sampleFileName
+ "' not found on the classpath");
}
// System.out.println("opening cp: " + sampleFileName);
// wrap to avoid temp warning method about auto-closing input stream
return new NonSeekableInputStream(result);
}
if (_resolvedDataDir == null) {
throw new RuntimeException("Must set system property '"
+ TEST_DATA_DIR_SYS_PROPERTY_NAME
@ -78,11 +75,7 @@ public final class HSSFTestDataSamples {
+ "' not found in data dir '" + _resolvedDataDir.getAbsolutePath() + "'");
}
// System.out.println("opening " + f.getAbsolutePath());
try {
return new FileInputStream(f);
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
return f;
}
private static void initialise() {

30
src/testcases/org/apache/poi/hssf/usermodel/TestHSSFWorkbook.java
View File

@ -32,6 +32,9 @@ import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.RecordFormatException;
import org.apache.poi.hssf.record.RecordInputStream;
import org.apache.poi.hssf.record.formula.Area3DPtg;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.util.TempFile;
/**
@ -550,4 +553,31 @@ public final class TestHSSFWorkbook extends TestCase {
nr = wb.getWorkbook().getNameRecord(2);
assertEquals("Sheet2!E:F,Sheet2!$A$9:$IV$12", nr.getAreaReference(wb)); // E:F,9:12
}
/**
* Tests that we can work with both {@link POIFSFileSystem}
* and {@link NPOIFSFileSystem}
*/
public void testDifferentPOIFS() throws Exception {
// Open the two filesystems
DirectoryNode[] files = new DirectoryNode[2];
files[0] = (new POIFSFileSystem(HSSFTestDataSamples.openSampleFileStream("Simple.xls"))).getRoot();
files[1] = (new NPOIFSFileSystem(HSSFTestDataSamples.getSampeFile("Simple.xls"))).getRoot();
// Open without preserving nodes
for(DirectoryNode dir : files) {
HSSFWorkbook workbook = new HSSFWorkbook(dir, false);
HSSFSheet sheet = workbook.getSheetAt(0);
HSSFCell cell = sheet.getRow(0).getCell(0);
assertEquals("replaceMe", cell .getRichStringCellValue().getString());
}
// Now re-check with preserving
for(DirectoryNode dir : files) {
HSSFWorkbook workbook = new HSSFWorkbook(dir, true);
HSSFSheet sheet = workbook.getSheetAt(0);
HSSFCell cell = sheet.getRow(0).getCell(0);
assertEquals("replaceMe", cell .getRichStringCellValue().getString());
}
}
}