| #region Apache License |
| // |
| // 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. |
| // |
| #endregion |
| |
| using System; |
| using System.Text; |
| using System.IO; |
| |
| namespace log4net.Util |
| { |
| /// <summary> |
| /// A <see cref="StringWriter"/> that can be <see cref="Reset"/> and reused |
| /// </summary> |
| /// <remarks> |
| /// <para> |
| /// A <see cref="StringWriter"/> that can be <see cref="Reset"/> and reused. |
| /// This uses a single buffer for string operations. |
| /// </para> |
| /// </remarks> |
| /// <author>Nicko Cadell</author> |
| public class ReusableStringWriter : StringWriter |
| { |
| #region Constructor |
| |
| /// <summary> |
| /// Create an instance of <see cref="ReusableStringWriter"/> |
| /// </summary> |
| /// <param name="formatProvider">the format provider to use</param> |
| /// <remarks> |
| /// <para> |
| /// Create an instance of <see cref="ReusableStringWriter"/> |
| /// </para> |
| /// </remarks> |
| public ReusableStringWriter(IFormatProvider formatProvider) : base(formatProvider) |
| { |
| } |
| |
| #endregion |
| |
| /// <summary> |
| /// Override Dispose to prevent closing of writer |
| /// </summary> |
| /// <param name="disposing">flag</param> |
| /// <remarks> |
| /// <para> |
| /// Override Dispose to prevent closing of writer |
| /// </para> |
| /// </remarks> |
| protected override void Dispose(bool disposing) |
| { |
| // Do not close the writer |
| } |
| |
| /// <summary> |
| /// Reset this string writer so that it can be reused. |
| /// </summary> |
| /// <param name="maxCapacity">the maximum buffer capacity before it is trimmed</param> |
| /// <param name="defaultSize">the default size to make the buffer</param> |
| /// <remarks> |
| /// <para> |
| /// Reset this string writer so that it can be reused. |
| /// The internal buffers are cleared and reset. |
| /// </para> |
| /// </remarks> |
| public void Reset(int maxCapacity, int defaultSize) |
| { |
| // Reset working string buffer |
| StringBuilder sb = this.GetStringBuilder(); |
| |
| sb.Length = 0; |
| |
| // Check if over max size |
| if (sb.Capacity > maxCapacity) |
| { |
| sb.Capacity = defaultSize; |
| } |
| } |
| } |
| } |