| using Lucene.Net.Diagnostics; |
| using System; |
| |
| namespace Lucene.Net.Store |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Base implementation for a concrete <see cref="Directory"/>. |
| /// <para/> |
| /// @lucene.experimental |
| /// </summary> |
| public abstract class BaseDirectory : Directory |
| { |
| private volatile bool isOpen = true; |
| |
| // LUCENENET specific - since we can't make a CLS-compliant |
| // protected volatile field, we are exposing it through a protected |
| // property. |
| protected internal virtual bool IsOpen |
| { |
| get => isOpen; |
| set => isOpen = value; |
| } |
| |
| /// <summary> |
| /// Holds the LockFactory instance (implements locking for |
| /// this <see cref="Directory"/> instance). |
| /// </summary> |
| protected internal LockFactory m_lockFactory; |
| |
| /// <summary> |
| /// Sole constructor. </summary> |
| protected internal BaseDirectory() |
| : base() |
| { |
| } |
| |
| public override Lock MakeLock(string name) |
| { |
| return m_lockFactory.MakeLock(name); |
| } |
| |
| public override void ClearLock(string name) |
| { |
| if (m_lockFactory != null) |
| { |
| m_lockFactory.ClearLock(name); |
| } |
| } |
| |
| public override void SetLockFactory(LockFactory lockFactory) |
| { |
| if (Debugging.AssertsEnabled) Debugging.Assert(lockFactory != null); |
| this.m_lockFactory = lockFactory; |
| lockFactory.LockPrefix = this.GetLockID(); |
| } |
| |
| public override LockFactory LockFactory => this.m_lockFactory; |
| |
| protected internal override sealed void EnsureOpen() |
| { |
| if (!IsOpen) |
| { |
| throw new ObjectDisposedException(this.GetType().FullName, "this Directory is closed"); |
| } |
| } |
| } |
| } |