move filename for keys.csv to UniqueStringIntegerPairs

data-store/src/main/java/org/lucares/pdb/datastore/internal/DataStore.java

@@ -123,7 +123,7 @@ public class DataStore implements AutoCloseable {
     public DataStore(final Path dataDirectory) throws IOException {
         storageBasePath = storageDirectory(dataDirectory);
 
-        stringCompressor = StringCompressor.create(keyCompressionFile(storageBasePath));
+        stringCompressor = StringCompressor.create(storageBasePath);
         Tags.STRING_COMPRESSOR = stringCompressor;
 
         diskStorage = new PartitionDiskStore(storageBasePath, "data.bs");
@@ -143,10 +143,6 @@ public class DataStore implements AutoCloseable {
         writerCache.addListener((key, value) -> value.close());
     }
 
-    private Path keyCompressionFile(final Path dataDirectory) throws IOException {
-        return dataDirectory.resolve("keys.csv");
-    }
-
     public static Path storageDirectory(final Path dataDirectory) throws IOException {
         return dataDirectory.resolve(SUBDIR_STORAGE);
     }

pdb-api/src/main/java/org/lucares/pdb/api/StringCompressor.java

@@ -21,8 +21,8 @@ public class StringCompressor {
         this.usip = usip;
     }
 
-    public static StringCompressor create(final Path path) {
-        final UniqueStringIntegerPairs mapsi = new UniqueStringIntegerPairs(path);
+    public static StringCompressor create(final Path storageBasePath) {
+        final UniqueStringIntegerPairs mapsi = new UniqueStringIntegerPairs(storageBasePath);
         final StringCompressor result = new StringCompressor(mapsi);
 
         result.put(ALL_DOCS_KEY);

pdb-api/src/main/java/org/lucares/pdb/api/UniqueStringIntegerPairs.java

@@ -103,13 +103,17 @@ public class UniqueStringIntegerPairs {
         this(null);
     }
 
-    public UniqueStringIntegerPairs(final Path file) {
-        this.file = file;
+    public UniqueStringIntegerPairs(final Path storageBasePath) {
+        this.file = keyCompressionFile(storageBasePath);
         if (file != null) {
             init(file);
         }
     }
 
+    private Path keyCompressionFile(final Path dataDirectory) {
+        return dataDirectory.resolve("keys.csv");
+    }
+
     private void init(final Path file) throws RuntimeIOException {
 
         try {