org.httprpc.kilo.io.BufferedReader Maven / Gradle / Ivy
/*
* Licensed 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.httprpc.kilo.io;
import java.io.IOException;
import java.io.Reader;
class BufferedReader extends Reader {
private Reader reader;
private char[] buffer;
private int i = 0;
private int n = 0;
BufferedReader(Reader reader) {
this.reader = reader;
buffer = new char[8192];
}
@Override
public int read() throws IOException {
if (i == n) {
i = 0;
n = reader.read(buffer);
if (n == -1) {
n = 0;
return -1;
}
}
return buffer[i++];
}
@Override
public int read(char[] cbuf, int off, int len) {
throw new UnsupportedOperationException();
}
@Override
public void close() {
throw new UnsupportedOperationException();
}
}