org.mandas.docker.client.npipe.NamedPipeSocket Maven / Gradle / Ivy
/*-
* -\-\-
* docker-client
* --
* Copyright (C) 2018 Spotify AB
* Copyright (C) 9/2019 - 2020 Dimitris Mandalidis
* --
* 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.mandas.docker.client.npipe;
import java.io.FilterInputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.RandomAccessFile;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.nio.channels.Channels;
import java.nio.channels.FileChannel;
import java.nio.channels.SocketChannel;
public class NamedPipeSocket extends Socket {
private final Object connectLock = new Object();
private volatile boolean inputShutdown;
private volatile boolean outputShutdown;
private String socketPath;
private volatile SocketAddress socketAddress;
private RandomAccessFile namedPipe;
private FileChannel channel;
NamedPipeSocket() throws IOException {
}
@Override
public void connect(SocketAddress endpoint) throws IOException {
connect(endpoint, 0);
}
@Override
public void connect(SocketAddress endpoint, int timeout) throws IOException {
if (timeout < 0) {
throw new IllegalArgumentException("Timeout may not be negative: " + timeout);
}
if (!(endpoint instanceof NpipeSocketAddress)) {
throw new IllegalArgumentException("Unsupported address type: "
+ endpoint.getClass().getName());
}
this.socketAddress = endpoint;
this.socketPath = ((NpipeSocketAddress) endpoint).path();
synchronized (connectLock) {
this.namedPipe = new RandomAccessFile(socketPath, "rw");
this.channel = this.namedPipe.getChannel();
}
}
@Override
public void bind(SocketAddress bindpoint) throws IOException {
throw new SocketException("Bind is not supported");
}
@Override
public InetAddress getInetAddress() {
return null;
}
@Override
public InetAddress getLocalAddress() {
return null;
}
@Override
public int getPort() {
return -1;
}
@Override
public int getLocalPort() {
return -1;
}
@Override
public SocketAddress getRemoteSocketAddress() {
return socketAddress;
}
@Override
public SocketAddress getLocalSocketAddress() {
return null;
}
@Override
public SocketChannel getChannel() {
return null;
}
@Override
public InputStream getInputStream() throws IOException {
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
if (inputShutdown) {
throw new SocketException("Socket input is shutdown");
}
return new FilterInputStream(Channels.newInputStream(channel)) {
@Override
public void close() throws IOException {
shutdownInput();
}
};
}
@Override
public OutputStream getOutputStream() throws IOException {
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
if (outputShutdown) {
throw new SocketException("Socket output is shutdown");
}
return new FilterOutputStream(Channels.newOutputStream(channel)) {
@Override
public void close() throws IOException {
shutdownOutput();
}
};
}
@Override
public void sendUrgentData(int data) throws IOException {
throw new SocketException("Urgent data not supported");
}
@Override
public void setSoTimeout(int timeout) {
}
@Override
public int getSoTimeout() throws SocketException {
return 0;
}
@Override
public void setSendBufferSize(int size) throws SocketException {
if (size <= 0) {
throw new IllegalArgumentException("Send buffer size must be positive: " + size);
}
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
// just ignore
}
@Override
public synchronized int getSendBufferSize() throws SocketException {
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
throw new UnsupportedOperationException("Getting the send buffer size is not supported");
}
@Override
public synchronized void setReceiveBufferSize(int size) throws SocketException {
if (size <= 0) {
throw new IllegalArgumentException("Receive buffer size must be positive: " + size);
}
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
// just ignore
}
@Override
public synchronized int getReceiveBufferSize() throws SocketException {
if (!channel.isOpen()) {
throw new SocketException("Socket is closed");
}
throw new UnsupportedOperationException("Getting the receive buffer size is not supported");
}
@Override
public void setKeepAlive(boolean on) throws SocketException {
}
@Override
public boolean getKeepAlive() throws SocketException {
return true;
}
@Override
public void setTrafficClass(int tc) throws SocketException {
if (tc < 0 || tc > 255) {
throw new IllegalArgumentException("Traffic class is not in range 0 -- 255: " + tc);
}
if (isClosed()) {
throw new SocketException("Socket is closed");
}
// just ignore
}
@Override
public int getTrafficClass() throws SocketException {
throw new UnsupportedOperationException("Getting the traffic class is not supported");
}
@Override
public void setReuseAddress(boolean on) throws SocketException {
// just ignore
}
@Override
public boolean getReuseAddress() throws SocketException {
throw new UnsupportedOperationException("Getting the SO_REUSEADDR option is not supported");
}
@Override
public void close() throws IOException {
if (isClosed()) {
return;
}
if (channel != null) {
channel.close();
}
inputShutdown = true;
outputShutdown = true;
}
@Override
public void shutdownInput() throws IOException {
inputShutdown = true;
}
@Override
public void shutdownOutput() throws IOException {
outputShutdown = true;
}
@Override
public String toString() {
if (isConnected()) {
return "WindowsPipe[addr=" + this.socketPath + ']';
}
return "WindowsPipe[unconnected]";
}
@Override
public boolean isConnected() {
return !isClosed();
}
@Override
public boolean isBound() {
return false;
}
@Override
public boolean isClosed() {
return channel != null && !channel.isOpen();
}
@Override
public boolean isInputShutdown() {
return inputShutdown;
}
@Override
public boolean isOutputShutdown() {
return outputShutdown;
}
@Override
public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
// no-op
}
}