119 lines
3.0 KiB
Java
119 lines
3.0 KiB
Java
/**
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* Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.jfinal.template.io;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* ByteWriter
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*/
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public class ByteWriter extends Writer {
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OutputStream out;
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Encoder encoder;
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char[] chars;
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byte[] bytes;
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public ByteWriter(Encoder encoder, int bufferSize) {
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this.encoder = encoder;
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this.chars = new char[bufferSize];
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this.bytes = new byte[bufferSize * ((int)encoder.maxBytesPerChar())];
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}
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public ByteWriter init(OutputStream outputStream) {
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this.out = outputStream;
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return this;
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}
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public void flush() throws IOException {
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out.flush();
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}
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public void close() {
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out = null;
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}
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public void write(String str, int offset, int len) throws IOException {
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int size, byteLen;
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while (len > 0) {
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size = (len > chars.length ? chars.length : len);
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str.getChars(offset, offset + size, chars, 0);
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byteLen = encoder.encode(chars, 0, size, bytes);
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out.write(bytes, 0, byteLen);
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offset += size;
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len -= size;
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}
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}
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public void write(String str) throws IOException {
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write(str, 0, str.length());
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}
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public void write(StringBuilder stringBuilder, int offset, int len) throws IOException {
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int size, byteLen;
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while (len > 0) {
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size = (len > chars.length ? chars.length : len);
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stringBuilder.getChars(offset, offset + size, chars, 0);
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byteLen = encoder.encode(chars, 0, size, bytes);
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out.write(bytes, 0, byteLen);
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offset += size;
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len -= size;
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}
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}
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public void write(StringBuilder stringBuilder) throws IOException {
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write(stringBuilder, 0, stringBuilder.length());
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}
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public void write(IWritable writable) throws IOException {
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byte[] data = writable.getBytes();
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out.write(data, 0, data.length);
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}
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public void write(int intValue) throws IOException {
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IntegerWriter.write(this, intValue);
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}
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public void write(long longValue) throws IOException {
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LongWriter.write(this, longValue);
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}
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public void write(double doubleValue) throws IOException {
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FloatingWriter.write(this, doubleValue);
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}
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public void write(float floatValue) throws IOException {
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FloatingWriter.write(this, floatValue);
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}
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private static final byte[] TRUE_BYTES = "true".getBytes();
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private static final byte[] FALSE_BYTES = "false".getBytes();
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public void write(boolean booleanValue) throws IOException {
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out.write(booleanValue ? TRUE_BYTES : FALSE_BYTES);
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}
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}
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