lucene/luke/src/java/org/apache/lucene/luke/app/LukeState.java

/*
 * 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.luke.app;

import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.store.Directory;

/**
 * Holder for current index/directory.
 */
public interface LukeState {

  String getIndexPath();

  String getDirImpl();

  default Directory getDirectory() {
    throw new UnsupportedOperationException();
  }

  default IndexReader getIndexReader() {
    throw new UnsupportedOperationException();
  }

  default boolean readOnly() {
    throw new UnsupportedOperationException();
  }

  default boolean useCompound() {
    throw new UnsupportedOperationException();
  }

  default boolean keepAllCommits() {
    throw new UnsupportedOperationException();
  }

  default boolean hasDirectoryReader() {
    return getIndexReader() instanceof DirectoryReader;
  }

}