--- /dev/null
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.lucene.index;
+
+import org.apache.lucene.store.DataInput;
+
+/**
+ * This exception is thrown when Lucene detects
+ * an index that is too old for this Lucene version
+ */
+public class IndexFormatTooOldException extends CorruptIndexException {
+
+ /** @lucene.internal */
+ public IndexFormatTooOldException(String resourceDesc, String version) {
+ super("Format version is not supported (resource: " + resourceDesc + "): " +
+ version + ". This version of Lucene only supports indexes created with release 1.9 and later.");
+ assert resourceDesc != null;
+ }
+
+ /** @lucene.internal */
+ public IndexFormatTooOldException(DataInput in, String version) {
+ this(in.toString(), version);
+ }
+
+ /** @lucene.internal */
+ public IndexFormatTooOldException(String resourceDesc, int version, int minVersion, int maxVersion) {
+ super("Format version is not supported (resource: " + resourceDesc + "): " +
+ version + " (needs to be between " + minVersion + " and " + maxVersion +
+ "). This version of Lucene only supports indexes created with release 1.9 and later.");
+ assert resourceDesc != null;
+ }
+
+ /** @lucene.internal */
+ public IndexFormatTooOldException(DataInput in, int version, int minVersion, int maxVersion) {
+ this(in.toString(), version, minVersion, maxVersion);
+ }
+}