Improved network-drive-resilience in index directory creation

In a product, the removed Files.exists(p) && !Files.isDirectory(p) code
threw an exception because the examined path was not guaranteed to be in
a coherent state at the time of examination but Files.createDirectories
would still take care of throwing any exceptions if there were any
problems in creating the directory.

The worst thing was that this exception was hidden and not even logged.
Luckily a problem case forced the find.

refs #7845

Change-Id: Ic3ae84afeb798772996057eee33f7467c448f3e7

diff --git a/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexedRelationsSearcherBase.java b/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexedRelationsSearcherBase.java
index cf22a0dbf17fa5feb1f5e0467ff9be07bcf759f3..056a05e8ae06b1d7d4558207a05c8b135017ab11 100644 (file)
--- a/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexedRelationsSearcherBase.java
+++ b/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexedRelationsSearcherBase.java
@@ -15,7 +15,6 @@ package org.simantics.db.indexing;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -621,7 +620,7 @@ abstract public class IndexedRelationsSearcherBase {
 
         try {
             mon.subTask("Start index write");
-            createDirectory(indexPath);
+            Files.createDirectories(indexPath.toPath());
 
             directory.set(FSDirectory.open(indexPath));
             IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_4_9, Queries.getAnalyzer()).setOpenMode(OpenMode.CREATE);
@@ -982,13 +981,6 @@ abstract public class IndexedRelationsSearcherBase {
         return path;
     }
 
-    private static void createDirectory(File path) throws IOException {
-        Path p = path.toPath();
-        if (Files.exists(p) && !Files.isDirectory(p))
-            throw new IOException("Could not create index directory " + path + ", a file by that name already exists");
-        Files.createDirectories(p);
-    }
-
     File getIndexPath() {
         return indexPath;
     }