add interfaces for sdk proxy (#235)

Author: chaychen2005

build.gradle

@@ -36,7 +36,7 @@ ext {
 // integrationTest.mustRunAfter test
 allprojects {
     group = 'org.fisco-bcos.java-sdk'
-    version = '2.7.1'
+    version = '2.7.2-SNAPSHOT'
     apply plugin: 'maven'
     apply plugin: 'maven-publish'
     apply plugin: 'idea'

sdk-core/src/main/java/org/fisco/bcos/sdk/network/ConnectionManager.java

@@ -426,7 +426,7 @@ protected void removeConnectionContext(String ip, int port, ChannelHandlerContex
         }
     }
 
-    protected void removeConnection(String peerIpPort) {
+    public void removeConnection(String peerIpPort) {
         for (ConnectionInfo conn : connectionInfoList) {
             String ipPort = conn.getIp() + ":" + conn.getPort();
             if (ipPort.equals(peerIpPort)) {

sdk-core/src/main/java/org/fisco/bcos/sdk/network/Network.java

@@ -92,6 +92,9 @@ static Network build(ConfigOption configOption, MsgHandler handler) throws Confi
      */
     void setMsgHandleThreadPool(ExecutorService threadPool);
 
+    /** Get connection manager */
+    ConnectionManager getConnManager();
+
     /** Exit gracefully */
     void stop();
 }

sdk-core/src/main/java/org/fisco/bcos/sdk/network/NetworkImp.java

@@ -222,6 +222,11 @@ public void setMsgHandleThreadPool(ExecutorService threadPool) {
         connManager.setMsgHandleThreadPool(threadPool);
     }
 
+    @Override
+    public ConnectionManager getConnManager() {
+        return connManager;
+    }
+
     @Override
     public void stop() {
         logger.debug("stop Network...");