| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.help.internal.search; |
| |
| import java.io.*; |
| |
| /** |
| * High performance reader. Assumes the input stream is ASCII. |
| */ |
| public class ASCIIReader extends Reader { |
| private InputStream stream; |
| int bufSize; |
| byte[] buf; |
| /** |
| * @param stream |
| * InputStream |
| * @param bufSize |
| * size of internal buffer |
| */ |
| public ASCIIReader(InputStream stream, int bufSize) { |
| this.stream = stream; |
| this.bufSize = bufSize; |
| buf = new byte[bufSize]; |
| } |
| |
| /** |
| * @see java.io.Reader#read(char[], int, int) |
| */ |
| @Override |
| public int read(char[] cbuf, int off, int len) throws IOException { |
| int n = stream.read(buf, 0, Math.min(bufSize, len)); |
| for (int i = 0; i < n; i++) { |
| cbuf[off + i] = (char) buf[i]; |
| } |
| return n; |
| } |
| |
| /** |
| * @see java.io.Reader#close() |
| */ |
| @Override |
| public void close() throws IOException { |
| stream.close(); |
| } |
| |
| } |