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Redkale
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.redkale.net;
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import java.io.IOException;
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import java.net.*;
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import java.nio.ByteBuffer;
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import java.nio.channels.*;
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import java.util.*;
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import java.util.concurrent.*;
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import java.util.concurrent.atomic.*;
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import java.util.function.*;
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import javax.net.ssl.SSLContext;
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/**
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*
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* <p>
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* 详情见: https://redkale.org
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*
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* @author zhangjx
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*/
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public abstract class AsyncConnection2 implements ReadableByteChannel, WritableByteChannel, AutoCloseable {
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protected SSLContext sslContext;
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protected Map<String, Object> attributes; //用于存储绑定在Connection上的对象集合
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protected Object subobject; //用于存储绑定在Connection上的对象， 同attributes， 只绑定单个对象时尽量使用subobject而非attributes
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protected volatile long readtime;
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protected volatile long writetime;
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protected final Supplier<ByteBuffer> bufferSupplier;
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protected final Consumer<ByteBuffer> bufferConsumer;
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protected ByteBuffer readBuffer;
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//在线数
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protected AtomicLong livingCounter;
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//关闭数
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protected AtomicLong closedCounter;
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protected Consumer<AsyncConnection2> beforeCloseListener;
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//关联的事件数， 小于1表示没有事件
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protected final AtomicInteger eventing = new AtomicInteger();
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protected AsyncConnection2(Supplier<ByteBuffer> bufferSupplier, Consumer<ByteBuffer> bufferConsumer) {
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Objects.requireNonNull(bufferSupplier);
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Objects.requireNonNull(bufferConsumer);
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this.bufferSupplier = bufferSupplier;
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this.bufferConsumer = bufferConsumer;
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}
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public final long getLastReadTime() {
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return readtime;
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}
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public final long getLastWriteTime() {
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return writetime;
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}
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public final int increEventing() {
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return eventing.incrementAndGet();
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}
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public final int decreEventing() {
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return eventing.decrementAndGet();
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}
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@Override
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public abstract boolean isOpen();
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public abstract boolean isTCP();
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public abstract boolean shutdownInput();
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public abstract boolean shutdownOutput();
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public abstract <T> boolean setOption(SocketOption<T> name, T value);
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public abstract Set<SocketOption<?>> supportedOptions();
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public abstract SocketAddress getRemoteAddress();
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public abstract SocketAddress getLocalAddress();
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public abstract int getReadTimeoutSeconds();
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public abstract int getWriteTimeoutSeconds();
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public abstract void setReadTimeoutSeconds(int readTimeoutSeconds);
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public abstract void setWriteTimeoutSeconds(int writeTimeoutSeconds);
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@Override
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public abstract int read(ByteBuffer dst) throws IOException;
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public abstract void read(CompletionHandler<Integer, ByteBuffer> handler);
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public abstract void read(long timeout, TimeUnit unit, CompletionHandler<Integer, ByteBuffer> handler);
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@Override
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public abstract int write(ByteBuffer src) throws IOException;
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public abstract <A> void write(ByteBuffer src, A attachment, CompletionHandler<Integer, ? super A> handler);
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public final <A> void write(ByteBuffer[] srcs, A attachment, CompletionHandler<Integer, ? super A> handler) {
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write(srcs, 0, srcs.length, attachment, handler);
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}
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public abstract <A> void write(ByteBuffer[] srcs, int offset, int length, A attachment, CompletionHandler<Integer, ? super A> handler);
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public void setReadBuffer(ByteBuffer buffer) {
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if (this.readBuffer != null) throw new RuntimeException("repeat AsyncConnection.setReadBuffer");
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this.readBuffer = buffer;
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}
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public ByteBuffer pollReadBuffer() {
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ByteBuffer rs = this.readBuffer;
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if (rs != null) {
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this.readBuffer = null;
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return rs;
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}
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return bufferSupplier.get();
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}
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public void offerReadBuffer(ByteBuffer buffer) {
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if (buffer == null) return;
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bufferConsumer.accept(buffer);
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}
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public void offerReadBuffer(ByteBuffer... buffers) {
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if (buffers == null) return;
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for (ByteBuffer buffer : buffers) {
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bufferConsumer.accept(buffer);
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}
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}
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public ByteBuffer pollWriteBuffer() {
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return bufferSupplier.get();
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}
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public void offerWriteBuffer(ByteBuffer buffer) {
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if (buffer == null) return;
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bufferConsumer.accept(buffer);
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}
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public void offerWriteBuffer(ByteBuffer... buffers) {
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if (buffers == null) return;
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for (ByteBuffer buffer : buffers) {
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bufferConsumer.accept(buffer);
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}
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}
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public void dispose() {//同close， 只是去掉throws IOException
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try {
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this.close();
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} catch (IOException io) {
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}
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}
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public AsyncConnection2 beforeCloseListener(Consumer<AsyncConnection2> beforeCloseListener) {
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this.beforeCloseListener = beforeCloseListener;
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return this;
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}
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@Override
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public void close() throws IOException {
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if (closedCounter != null) {
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closedCounter.incrementAndGet();
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closedCounter = null;
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}
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if (livingCounter != null) {
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livingCounter.decrementAndGet();
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livingCounter = null;
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}
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if (beforeCloseListener != null) {
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try {
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beforeCloseListener.accept(this);
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} catch (Exception io) {
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}
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}
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if (this.readBuffer != null) {
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bufferConsumer.accept(this.readBuffer);
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}
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if (attributes == null) return;
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try {
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for (Object obj : attributes.values()) {
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if (obj instanceof AutoCloseable) ((AutoCloseable) obj).close();
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}
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} catch (Exception io) {
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}
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}
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@SuppressWarnings("unchecked")
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public final <T> T getSubobject() {
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return (T) this.subobject;
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}
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public void setSubobject(Object value) {
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this.subobject = value;
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}
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public void setAttribute(String name, Object value) {
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if (this.attributes == null) this.attributes = new HashMap<>();
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this.attributes.put(name, value);
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}
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@SuppressWarnings("unchecked")
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public final <T> T getAttribute(String name) {
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return (T) (this.attributes == null ? null : this.attributes.get(name));
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}
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public final void removeAttribute(String name) {
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if (this.attributes != null) this.attributes.remove(name);
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}
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public final Map<String, Object> getAttributes() {
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return this.attributes;
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}
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public final void clearAttribute() {
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if (this.attributes != null) this.attributes.clear();
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}
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//------------------------------------------------------------------------------------------------------------------------------
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/**
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* 创建TCP协议客户端连接
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*
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* @param address 连接点子
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* @param group 连接AsynchronousChannelGroup
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* @param readTimeoutSeconds 读取超时秒数
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* @param writeTimeoutSeconds 写入超时秒数
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*
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* @return 连接CompletableFuture
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*/
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public static CompletableFuture<AsyncConnection> createTCP(final AsynchronousChannelGroup group, final SocketAddress address,
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final int readTimeoutSeconds, final int writeTimeoutSeconds) {
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return createTCP(group, null, address, readTimeoutSeconds, writeTimeoutSeconds);
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}
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/**
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* 创建TCP协议客户端连接
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*
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* @param address 连接点子
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* @param sslContext SSLContext
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* @param group 连接AsynchronousChannelGroup
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* @param readTimeoutSeconds 读取超时秒数
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* @param writeTimeoutSeconds 写入超时秒数
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*
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* @return 连接CompletableFuture
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*/
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public static CompletableFuture<AsyncConnection> createTCP(final AsynchronousChannelGroup group, final SSLContext sslContext,
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final SocketAddress address, final int readTimeoutSeconds, final int writeTimeoutSeconds) {
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final CompletableFuture<AsyncConnection> future = new CompletableFuture<>();
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try {
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final AsynchronousSocketChannel channel = AsynchronousSocketChannel.open(group);
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try {
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channel.setOption(StandardSocketOptions.TCP_NODELAY, true);
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channel.setOption(StandardSocketOptions.SO_KEEPALIVE, true);
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channel.setOption(StandardSocketOptions.SO_REUSEADDR, true);
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} catch (IOException e) {
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}
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channel.connect(address, null, new CompletionHandler<Void, Void>() {
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@Override
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public void completed(Void result, Void attachment) {
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future.complete(create(channel, sslContext, address, readTimeoutSeconds, writeTimeoutSeconds));
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}
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@Override
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public void failed(Throwable exc, Void attachment) {
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future.completeExceptionally(exc);
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}
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});
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} catch (IOException e) {
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future.completeExceptionally(e);
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}
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return future;
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}
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/**
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* 通常用于 ssl socket
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*
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* @param socket Socket对象
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*
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* @return 连接对象
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*/
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public static AsyncConnection create(final Socket socket) {
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return create(socket, null, 0, 0);
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}
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public static AsyncConnection create(final Socket socket, final SocketAddress addr0, final int readTimeoutSecond0, final int writeTimeoutSecond0) {
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return new TcpBioAsyncConnection(socket, addr0, readTimeoutSecond0, writeTimeoutSecond0, null, null);
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}
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public static AsyncConnection create(final Socket socket, final SocketAddress addr0, final int readTimeoutSecond0,
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final int writeTimeoutSecond0, final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new TcpBioAsyncConnection(socket, addr0, readTimeoutSecond0, writeTimeoutSecond0, livingCounter, closedCounter);
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}
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public static AsyncConnection create(final SocketChannel ch, SocketAddress addr, final Selector selector,
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final int readTimeoutSeconds0, final int writeTimeoutSeconds0) {
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return new TcpNioAsyncConnection(ch, addr, selector, readTimeoutSeconds0, writeTimeoutSeconds0, null, null);
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}
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public static AsyncConnection create(final SocketChannel ch, final SocketAddress addr0, final Selector selector, final Context context) {
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return new TcpNioAsyncConnection(ch, addr0, selector, context.readTimeoutSeconds, context.writeTimeoutSeconds, null, null);
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}
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public static AsyncConnection create(final SocketChannel ch, SocketAddress addr, final Selector selector,
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final int readTimeoutSeconds0, final int writeTimeoutSeconds0,
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final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new TcpNioAsyncConnection(ch, addr, selector, readTimeoutSeconds0, writeTimeoutSeconds0, livingCounter, closedCounter);
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}
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public static AsyncConnection create(final DatagramChannel ch, SocketAddress addr,
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final boolean client0, final int readTimeoutSeconds0, final int writeTimeoutSeconds0) {
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return new UdpBioAsyncConnection(ch, addr, client0, readTimeoutSeconds0, writeTimeoutSeconds0, null, null);
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}
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public static AsyncConnection create(final DatagramChannel ch, SocketAddress addr,
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final boolean client0, final int readTimeoutSeconds0, final int writeTimeoutSeconds0,
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final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new UdpBioAsyncConnection(ch, addr, client0, readTimeoutSeconds0, writeTimeoutSeconds0, livingCounter, closedCounter);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch) {
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return create(ch, null, 0, 0);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, final SocketAddress addr0, final int readTimeoutSeconds, final int writeTimeoutSeconds) {
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return new TcpAioAsyncConnection(ch, null, addr0, readTimeoutSeconds, writeTimeoutSeconds, null, null);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, SSLContext sslContext, final SocketAddress addr0, final int readTimeoutSeconds, final int writeTimeoutSeconds) {
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return new TcpAioAsyncConnection(ch, sslContext, addr0, readTimeoutSeconds, writeTimeoutSeconds, null, null);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, final SocketAddress addr0, final Context context) {
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return new TcpAioAsyncConnection(ch, context.sslContext, addr0, context.readTimeoutSeconds, context.writeTimeoutSeconds, null, null);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, final SocketAddress addr0, final int readTimeoutSeconds,
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final int writeTimeoutSeconds, final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new TcpAioAsyncConnection(ch, null, addr0, readTimeoutSeconds, writeTimeoutSeconds, livingCounter, closedCounter);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, SSLContext sslContext, final SocketAddress addr0, final int readTimeoutSeconds,
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final int writeTimeoutSeconds, final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new TcpAioAsyncConnection(ch, sslContext, addr0, readTimeoutSeconds, writeTimeoutSeconds, livingCounter, closedCounter);
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}
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public static AsyncConnection create(final AsynchronousSocketChannel ch, final SocketAddress addr0,
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final Context context, final AtomicLong livingCounter, final AtomicLong closedCounter) {
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return new TcpAioAsyncConnection(ch, context.sslContext, addr0, context.readTimeoutSeconds, context.writeTimeoutSeconds, livingCounter, closedCounter);
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}
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}
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