enjoy 3.3 release ^_^

src/main/java/com/jfinal/template/io/WriterBuffer.java

@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
+ *
+ * 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 com.jfinal.template.io;
+
+/**
+ * WriterBuffer
+ */
+public class WriterBuffer {
+	
+	private static final int MIN_BUFFER_SIZE = 64;					// 缓冲区最小 64 字节
+	private static final int MAX_BUFFER_SIZE = 1024 * 1024 * 10;	// 缓冲区最大 10M 字节
+	
+	private int bufferSize = 2048;									// 缓冲区大小
+	
+	private EncoderFactory encoderFactory = new EncoderFactory();
+	
+	private final ThreadLocal<ByteWriter> byteWriters = new ThreadLocal<ByteWriter>() {
+		protected ByteWriter initialValue() {
+			return new ByteWriter(encoderFactory.getEncoder(), bufferSize);
+		}
+	};
+	
+	private final ThreadLocal<CharWriter> charWriters = new ThreadLocal<CharWriter>() {
+		protected CharWriter initialValue() {
+			return new CharWriter(bufferSize);
+		}
+	};
+	
+	private final ThreadLocal<FastStringWriter> fastStringWriters = new ThreadLocal<FastStringWriter>() {
+		protected FastStringWriter initialValue() {
+			return new FastStringWriter();
+		}
+	};
+	
+	public ByteWriter getByteWriter(java.io.OutputStream outputStream) {
+		return byteWriters.get().init(outputStream);
+	}
+	
+	public CharWriter getCharWriter(java.io.Writer writer) {
+		return charWriters.get().init(writer);
+	}
+	
+	public FastStringWriter getFastStringWriter() {
+		return fastStringWriters.get();
+	}
+	
+	public void setBufferSize(int bufferSize) {
+		if (bufferSize < MIN_BUFFER_SIZE || bufferSize > MAX_BUFFER_SIZE) {
+			throw new IllegalArgumentException("bufferSize must between " + (MIN_BUFFER_SIZE-1) + " and " + (MAX_BUFFER_SIZE+1));
+		}
+		this.bufferSize = bufferSize;
+	}
+	
+	public void setEncoderFactory(EncoderFactory encoderFactory) {
+		if (encoderFactory == null) {
+			throw new IllegalArgumentException("encoderFactory can not be null");
+		}
+		this.encoderFactory = encoderFactory;
+	}
+	
+	public void setEncoding(String encoding) {
+		encoderFactory.setEncoding(encoding);
+	}
+}
+
+
+
+
+
+
+
+