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Fix bug #49432 - Lazy caching of XSSFComment CTComment objects by reference, to make repeated comment searching faster 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@954521 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2010-06-14 15:43:47 +00:00
parent 9180721741
commit 741f499c4a
4 changed files with 55 additions and 11 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.7-beta2" date="2010-??-??">
<action dev="POI-DEVELOPERS" type="fix">49432 - Lazy caching of XSSFComment CTComment objects by reference, to make repeated comment searching faster</action>
<action dev="POI-DEVELOPERS" type="fix">Better handling of Outlook messages in HSMF when there's no recipient email address</action>
<action dev="POI-DEVELOPERS" type="fix">When formatting numbers with DataFormatter, handle brackets following colours</action>
</release>

46
src/ooxml/java/org/apache/poi/xssf/model/CommentsTable.java
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@ -19,20 +19,27 @@ package org.apache.poi.xssf.model;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.apache.xmlbeans.XmlException;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTComment;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCommentList;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTComments;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CommentsDocument;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
public class CommentsTable extends POIXMLDocumentPart {
private CTComments comments;
/**
* XML Beans uses a list, which is very slow
* to search, so we wrap things with our own
* map for fast lookup.
*/
private Map<String, CTComment> commentRefs;
public CommentsTable() {
super();
@ -68,6 +75,17 @@ public class CommentsTable extends POIXMLDocumentPart {
out.close();
}
/**
* Called after the reference is updated, so that
* we can reflect that in our cache
*/
public void referenceUpdated(String oldReference, CTComment comment) {
if(commentRefs != null) {
commentRefs.remove(oldReference);
commentRefs.put(comment.getRef(), comment);
}
}
public int getNumberOfComments() {
return comments.getCommentList().sizeOfCommentArray();
}
@ -95,18 +113,26 @@ public class CommentsTable extends POIXMLDocumentPart {
}
public CTComment getCTComment(String cellRef) {
for (CTComment comment : comments.getCommentList().getCommentArray()) {
if (cellRef.equals(comment.getRef())) {
return comment;
// Create the cache if needed
if(commentRefs == null) {
commentRefs = new HashMap<String, CTComment>();
for (CTComment comment : comments.getCommentList().getCommentList()) {
commentRefs.put(comment.getRef(), comment);
}
}
return null;
// Return the comment, or null if not known
return commentRefs.get(cellRef);
}
public CTComment newComment() {
CTComment ct = comments.getCommentList().addNewComment();
ct.setRef("A1");
ct.setAuthorId(0);
if(commentRefs != null) {
commentRefs.put(ct.getRef(), ct);
}
return ct;
}
@ -116,6 +142,10 @@ public class CommentsTable extends POIXMLDocumentPart {
CTComment comment = lst.getCommentArray(i);
if (cellRef.equals(comment.getRef())) {
lst.removeComment(i);
if(commentRefs != null) {
commentRefs.remove(cellRef);
}
return true;
}
}

8
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFComment.java
View File

@ -110,8 +110,12 @@ public class XSSFComment implements Comment {
* @param col the 0-based column of the cell that contains the comment
*/
public void setColumn(int col) {
String oldRef = _comment.getRef();
CellReference ref = new CellReference(getRow(), col);
_comment.setRef(ref.formatAsString());
_comments.referenceUpdated(oldRef, _comment);
if(_vmlShape != null) _vmlShape.getClientDataArray(0).setColumnArray(0, new BigInteger(String.valueOf(col)));
}
@ -121,9 +125,13 @@ public class XSSFComment implements Comment {
* @param row the 0-based row of the cell that contains the comment
*/
public void setRow(int row) {
String oldRef = _comment.getRef();
String newRef =
(new CellReference(row, getColumn())).formatAsString();
_comment.setRef(newRef);
_comments.referenceUpdated(oldRef, _comment);
if(_vmlShape != null) _vmlShape.getClientDataArray(0).setRowArray(0, new BigInteger(String.valueOf(row)));
}

7
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java
View File

@ -175,9 +175,14 @@ public class XSSFSheet extends POIXMLDocumentPart implements Sheet {
initRows(worksheet);
columnHelper = new ColumnHelper(worksheet);
// Look for bits we're interested in
for(POIXMLDocumentPart p : getRelations()){
if(p instanceof CommentsTable) sheetComments = (CommentsTable)p;
if(p instanceof CommentsTable) {
sheetComments = (CommentsTable)p;
break;
}
}
// Process external hyperlinks for the sheet, if there are any
initHyperlinks();
}