Revision: 20281
http://sourceforge.net/p/gate/code/20281
Author: ian_roberts
Date: 2017-12-05 00:35:07 +0000 (Tue, 05 Dec 2017)
Log Message:
-----------
Updated index upgrader to be able to cope with quasi-succinct indexes (which
have a different set of files on disk compared to traditional FileHPIndexes)
Modified Paths:
--------------
mimir/trunk/mimir-core/src/gate/mimir/util/IndexUpgrader.java
Modified: mimir/trunk/mimir-core/src/gate/mimir/util/IndexUpgrader.java
===================================================================
--- mimir/trunk/mimir-core/src/gate/mimir/util/IndexUpgrader.java
2017-12-05 00:34:15 UTC (rev 20280)
+++ mimir/trunk/mimir-core/src/gate/mimir/util/IndexUpgrader.java
2017-12-05 00:35:07 UTC (rev 20281)
@@ -24,7 +24,12 @@
import gate.mimir.index.IndexException;
import it.unimi.di.big.mg4j.index.DiskBasedIndex;
import it.unimi.di.big.mg4j.index.cluster.DocumentalCluster;
+import it.unimi.di.big.mg4j.io.IOFactory;
+import it.unimi.di.big.mg4j.io.IOFactories;
+import it.unimi.dsi.util.Properties;
+
+
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
@@ -53,12 +58,39 @@
DiskBasedIndex.TERMS_EXTENSION,
DiskBasedIndex.OFFSETS_EXTENSION
};
+
+ /**
+ * A minimal set of files required for a valid quasi-succinct index.
+ */
+ protected static final String[] REQUIRED_QS_INDEX_FILE_EXTENSIONS = new
String[] {
+ DiskBasedIndex.COUNTS_EXTENSION,
+ DiskBasedIndex.COUNTS_EXTENSION + "offsets",
+ DiskBasedIndex.POINTERS_EXTENSIONS,
+ DiskBasedIndex.POINTERS_EXTENSIONS + "offsets",
+ DiskBasedIndex.POSITIONS_EXTENSION,
+ DiskBasedIndex.POSITIONS_EXTENSION + "offsets",
+ DiskBasedIndex.TERMS_EXTENSION,
+ };
+ /**
+ * A minimal set of files required for a valid direct index.
+ */
protected static final String[] REQUIRED_DIRECT_INDEX_FILE_EXTENSIONS = new
String[] {
DiskBasedIndex.INDEX_EXTENSION,
DiskBasedIndex.TERMS_EXTENSION,
DiskBasedIndex.OFFSETS_EXTENSION
};
+
+ /**
+ * A minimal set of files required for a valid quasi-succinct direct index.
+ */
+ protected static final String[] REQUIRED_QS_DIRECT_INDEX_FILE_EXTENSIONS =
new String[] {
+ DiskBasedIndex.COUNTS_EXTENSION,
+ DiskBasedIndex.COUNTS_EXTENSION + "offsets",
+ DiskBasedIndex.POINTERS_EXTENSIONS,
+ DiskBasedIndex.POINTERS_EXTENSIONS + "offsets",
+ DiskBasedIndex.TERMS_EXTENSION,
+ };
public static void upgradeIndex(File indexDirectory) throws IOException,
IndexException {
@@ -196,11 +228,39 @@
AtomicIndex.DIRECT_INDEX_NAME_SUFFIX + "."));
}
});
- Set<String> requiredExtensions = new HashSet<String>(
- Arrays.asList(REQUIRED_INDEX_FILE_EXTENSIONS));
- Set<String> requiredDirectExtensions = new HashSet<String>(
- Arrays.asList(REQUIRED_DIRECT_INDEX_FILE_EXTENSIONS));
+
+ Set<String> requiredExtensions = new HashSet<String>();
+ Set<String> requiredDirectExtensions = new HashSet<String>();
+ String indexPropertiesFile = new File(sourceDir, inputFilePrefix +
DiskBasedIndex.PROPERTIES_EXTENSION).getAbsolutePath();
+ try {
+ Properties indexProperties =
IOFactories.loadProperties(IOFactory.FILESYSTEM_FACTORY,
+ indexPropertiesFile);
+
if("it.unimi.di.big.mg4j.index.QuasiSuccinctIndex".equals(indexProperties.getString("indexclass")))
{
+
requiredExtensions.addAll(Arrays.asList(REQUIRED_QS_INDEX_FILE_EXTENSIONS));
+ } else {
+
requiredExtensions.addAll(Arrays.asList(REQUIRED_INDEX_FILE_EXTENSIONS));
+ }
+ } catch(Exception e) {
+ throw new IndexException("Error reading " + indexPropertiesFile, e);
+ }
+
+ if(direct) {
+ String directPropertiesFile = new File(sourceDir, inputFilePrefix +
AtomicIndex.DIRECT_INDEX_NAME_SUFFIX
+ + DiskBasedIndex.PROPERTIES_EXTENSION).getAbsolutePath();
+ try {
+ Properties directProperties =
IOFactories.loadProperties(IOFactory.FILESYSTEM_FACTORY,
+ directPropertiesFile);
+
if("it.unimi.di.big.mg4j.index.QuasiSuccinctIndex".equals(directProperties.getString("indexclass")))
{
+
requiredDirectExtensions.addAll(Arrays.asList(REQUIRED_QS_DIRECT_INDEX_FILE_EXTENSIONS));
+ } else {
+
requiredDirectExtensions.addAll(Arrays.asList(REQUIRED_DIRECT_INDEX_FILE_EXTENSIONS));
+ }
+ } catch(Exception e) {
+ throw new IndexException("Error reading " + directPropertiesFile, e);
+ }
+ }
+
for(File aFile : atomicIndexFiles) {
String extension = aFile.getName().substring(inputFilePrefix.length());
if(direct && extension.startsWith(AtomicIndex.DIRECT_INDEX_NAME_SUFFIX))
{
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