init

did-common/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>did</artifactId>
+        <groupId>cn.ceres.did</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>did-common</artifactId>
+
+    <name>did-common</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-all</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>

did-common/src/main/java/cn/ceres/did/common/Constants.java

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+package cn.ceres.did.common;
+
+import java.util.Map;
+
+/**
+ * @author ehlxr
+ */
+public class Constants {
+    private static Map<String, String> SYS_ENV = System.getenv();
+
+    public static String getEnv(String key) {
+        return SYS_ENV.get(key) == null ? "" : SYS_ENV.get(key);
+    }
+
+    public static String DEFAULT_HOST = "localhost";
+    /**
+     * HTTP协议和SDK协议服务器的端口
+     */
+    public static int HTTP_PORT = 16830;
+    public static int SDKS_PORT = 16831;
+
+    /**
+     * HTTP协议和SDK协议的请求路径
+     */
+    public static String HTTP_REQUEST = "did";
+    public static String SDKS_REQUEST = "did";
+
+    /**
+     * 数据中心的标识ID，取值范围：0~31
+     * 机器或进程的标识ID，取值范围：0~31
+     * 两个标识ID组合在分布式环境中必须唯一
+     */
+    public static long DATACENTER_ID = 1;
+    public static long MACHINES_SIGN = 1;
+
+    /**
+     * 流量控制，表示每秒处理的并发数
+     */
+    public static int HANDLE_HTTP_TPS = 10000;
+    public static int HANDLE_SDKS_TPS = 50000;
+    public static int ACQUIRE_TIMEOUTMILLIS = 5000;
+
+    private Constants() {
+    }
+}

did-common/src/main/java/cn/ceres/did/common/NettyUtil.java

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+package cn.ceres.did.common;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelFutureListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.SocketAddress;
+
+/**
+ * @author ehlxr
+ */
+public class NettyUtil {
+    private static final Logger logger = LoggerFactory.getLogger(NettyUtil.class);
+
+    /**
+     * 获取 Channel 的远程 IP 地址
+     */
+    public static String parseRemoteAddr(final Channel channel) {
+        if (null == channel) {
+            return "";
+        }
+        SocketAddress remote = channel.remoteAddress();
+        final String addr = remote != null ? remote.toString() : "";
+
+        if (addr.length() > 0) {
+            int index = addr.lastIndexOf("/");
+            if (index >= 0) {
+                return addr.substring(index + 1);
+            }
+            return addr;
+        }
+        return "";
+    }
+
+    public static void closeChannel(Channel channel) {
+        final String addrRemote = parseRemoteAddr(channel);
+        channel.close().addListener(new ChannelFutureListener() {
+            @Override
+            public void operationComplete(ChannelFuture future) {
+                logger.info("closeChannel: close the connection to remote address[{}] result: {}", addrRemote, future.isSuccess());
+            }
+        });
+    }
+}

did-common/target/maven-archiver/pom.properties

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+#Generated by Maven
+#Tue Aug 14 15:16:52 CST 2018
+version=1.0-SNAPSHOT
+groupId=cn.ceres.did
+artifactId=did-common

did-common/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

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+cn/ceres/did/common/NettyUtil.class
+cn/ceres/did/common/Constants.class
+cn/ceres/did/common/NettyUtil$1.class

did-common/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

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+/Users/ehlxr/WorkSpaces/did/did-common/src/main/java/cn/ceres/did/common/Constants.java
+/Users/ehlxr/WorkSpaces/did/did-common/src/main/java/cn/ceres/did/common/NettyUtil.java