org.httprpc.io.TextDecoder 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.io;
import java.io.IOException;
import java.io.Reader;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* Text decoder.
*/
public class TextDecoder extends Decoder {
private boolean builder;
/**
* Constructs a new text decoder.
*/
public TextDecoder() {
this(StandardCharsets.UTF_8);
}
/**
* Constructs a new text decoder.
*
* @param charset
* The character set to use when decoding the text.
*/
public TextDecoder(Charset charset) {
this(charset, false);
}
/**
* Constructs a new text decoder.
*
* @param charset
* The character set to use when decoding the text.
*
* @param builder
* true if the result should be returned as a mutable builder;
* false, otherwise.
*/
public TextDecoder(Charset charset, boolean builder) {
super(charset);
this.builder = builder;
}
@Override
@SuppressWarnings("unchecked")
public U read(Reader reader) throws IOException {
if (reader == null) {
throw new IllegalArgumentException();
}
reader = new BufferedReader(reader);
StringBuilder stringBuilder = new StringBuilder();
int c;
while ((c = reader.read()) != EOF) {
stringBuilder.append((char)c);
}
if (builder) {
return (U)stringBuilder;
} else {
return (U)stringBuilder.toString();
}
}
}