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[bug-65184] Improve performance of POFSMiniStore getBlockAt. Thanks to sits 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1887604 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2021-03-13 18:09:13 +00:00
parent 5758145ce8
commit c70b649e73
1 changed files with 135 additions and 137 deletions
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10
src/java/org/apache/poi/poifs/filesystem/POIFSMiniStore.java
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@ -1,4 +1,3 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
@ -35,8 +34,7 @@ import org.apache.poi.poifs.storage.HeaderBlock;
* This class handles the MiniStream (small block store)
* in the NIO case for {@link POIFSFileSystem}
*/
public class POIFSMiniStore extends BlockStore
{
public class POIFSMiniStore extends BlockStore {
private final POIFSFileSystem _filesystem;
private POIFSStream _mini_stream;
private final List<BATBlock> _sbat_blocks;
@ -44,8 +42,7 @@ public class POIFSMiniStore extends BlockStore
private final RootProperty _root;
POIFSMiniStore(POIFSFileSystem filesystem, RootProperty root,
List<BATBlock> sbats, HeaderBlock header)
{
List<BATBlock> sbats, HeaderBlock header) {
this._filesystem = filesystem;
this._sbat_blocks = sbats;
this._header = header;
@ -93,7 +90,8 @@ public class POIFSMiniStore extends BlockStore
if (!firstInStore) {
try {
return getBlockAt(offset);
} catch(NoSuchElementException ignored) {}
} catch (NoSuchElementException ignored) {
}
}
// Need to extend the stream