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Fix first part of bug #51514 - HSSF copy nodes from NPOIFS

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1147179 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2011-07-15 15:02:19 +00:00
parent 86988f78de
commit 441c444986
3 changed files with 27 additions and 20 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta4" date="2011-??-??">
<action dev="poi-developers" type="fix">51514 - avoid NPE when copying nodes from one HSSF workbook to a new one, when opened from NPOIFS</action>
<action dev="poi-developers" type="fix">51504 - avoid NPE when DefaultRowHeight or DefaultColumnWidth records are missing</action>
<action dev="poi-developers" type="fix">51502 - Correct Subtotal function javadoc entry</action>
<action dev="poi-developers" type="add">Support for hyperlinks in SXSSF</action>

29
src/java/org/apache/poi/POIDocument.java
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@ -239,19 +239,26 @@ public abstract class POIDocument {
protected void copyNodes(POIFSFileSystem source, POIFSFileSystem target,
List<String> excepts) throws IOException {
//System.err.println("CopyNodes called");
DirectoryEntry root = source.getRoot();
DirectoryEntry newRoot = target.getRoot();
Iterator<Entry> entries = root.getEntries();
while (entries.hasNext()) {
Entry entry = entries.next();
if (!excepts.contains(entry.getName())) {
copyNodeRecursively(entry,newRoot);
}
}
copyNodes(source.getRoot(), target.getRoot(), excepts);
}
/**
* Copies nodes from one POIFS to the other minus the excepts
* @param source is the source POIFS to copy from
* @param target is the target POIFS to copy to
* @param excepts is a list of Strings specifying what nodes NOT to copy
*/
protected void copyNodes(DirectoryNode sourceRoot, DirectoryNode targetRoot,
List<String> excepts) throws IOException {
Iterator<Entry> entries = sourceRoot.getEntries();
while (entries.hasNext()) {
Entry entry = entries.next();
if (!excepts.contains(entry.getName())) {
copyNodeRecursively(entry,targetRoot);
}
}
}
/**
* Copies an Entry into a target POIFS directory, recursively
*/

17
src/java/org/apache/poi/hssf/usermodel/HSSFWorkbook.java
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@ -36,27 +36,27 @@ import org.apache.poi.ddf.EscherBlipRecord;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.hssf.OldExcelFormatException;
import org.apache.poi.hssf.model.HSSFFormulaParser;
import org.apache.poi.hssf.model.RecordStream;
import org.apache.poi.hssf.model.InternalSheet;
import org.apache.poi.hssf.model.InternalWorkbook;
import org.apache.poi.hssf.model.RecordStream;
import org.apache.poi.hssf.record.*;
import org.apache.poi.hssf.record.aggregates.RecordAggregate.RecordVisitor;
import org.apache.poi.hssf.record.common.UnicodeString;
import org.apache.poi.hssf.util.CellReference;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.formula.FormulaShifter;
import org.apache.poi.ss.formula.FormulaType;
import org.apache.poi.ss.formula.SheetNameFormatter;
import org.apache.poi.ss.formula.ptg.Area3DPtg;
import org.apache.poi.ss.formula.ptg.MemFuncPtg;
import org.apache.poi.ss.formula.ptg.OperandPtg;
import org.apache.poi.ss.formula.ptg.Ptg;
import org.apache.poi.ss.formula.ptg.Ref3DPtg;
import org.apache.poi.ss.formula.SheetNameFormatter;
import org.apache.poi.ss.formula.ptg.UnionPtg;
import org.apache.poi.hssf.util.CellReference;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.formula.udf.AggregatingUDFFinder;
import org.apache.poi.ss.formula.udf.UDFFinder;
import org.apache.poi.ss.usermodel.Row.MissingCellPolicy;
import org.apache.poi.ss.formula.FormulaType;
import org.apache.poi.ss.util.WorkbookUtil;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
@ -1244,13 +1244,12 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
// out correctly shortly, so don't include the old one
excepts.add("WORKBOOK");
POIFSFileSystem srcFs = this.directory.getFileSystem();
// Copy over all the other nodes to our new poifs
copyNodes(srcFs, fs, excepts);
copyNodes(this.directory, fs.getRoot(), excepts);
// YK: preserve StorageClsid, it is important for embedded workbooks,
// see Bugzilla 47920
fs.getRoot().setStorageClsid(srcFs.getRoot().getStorageClsid());
fs.getRoot().setStorageClsid(this.directory.getStorageClsid());
}
fs.writeFilesystem(stream);
}