解决server sdk有内存泄漏的问题

common/src/main/java/cn/wildfirechat/pojos/InputOutputUserInfo.java

@@ -196,4 +196,16 @@ public class InputOutputUserInfo {
     public void setDeleted(int deleted) {
         this.deleted = deleted;
     }
+
+    @Override
+    public String toString() {
+        return "{" +
+            "userId='" + userId + '\'' +
+            ", name='" + name + '\'' +
+            ", displayName='" + displayName + '\'' +
+            ", portrait='" + portrait + '\'' +
+            ", mobile='" + mobile + '\'' +
+            ", updateDt=" + updateDt +
+            '}';
+    }
 }

sdk/src/main/java/cn/wildfirechat/sdk/utilities/AdminHttpUtils.java

@@ -1,195 +1,135 @@
 package cn.wildfirechat.sdk.utilities;
 
-import cn.wildfirechat.common.ErrorCode;
 import cn.wildfirechat.sdk.model.IMResult;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
-import ikidou.reflect.TypeBuilder;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.http.HttpResponse;
-import org.apache.http.HttpStatus;
-import org.apache.http.client.HttpClient;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpPost;
-import org.apache.http.config.ConnectionConfig;
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
-import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-import java.lang.reflect.Type;
-import java.nio.charset.Charset;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.security.SecureRandom;
 import java.util.concurrent.TimeUnit;
 
-
-public class AdminHttpUtils extends JsonUtils {
+public class AdminHttpUtils extends HttpUtils {
+    // ======================== 常量定义（消除硬编码）========================
     private static final Logger LOG = LoggerFactory.getLogger(AdminHttpUtils.class);
-    public static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
 
-    private static String adminUrl;
-    private static String adminSecret;
-    private static CloseableHttpClient httpClient;
+    // 连接池配置常量
+    private static final int DEFAULT_CONNECT_TIMEOUT = 15000;
+    private static final int DEFAULT_CONNECTION_REQUEST_TIMEOUT = 3000;
+    private static final int DEFAULT_SOCKET_TIMEOUT = 15000;
+    private static final int MAX_CONN_TOTAL = 100;
+    private static final int MAX_CONN_PER_ROUTE = 50;
+    private static final long IDLE_CONNECTION_EVICT_TIME = 60L;
+    private static final int VALIDATE_AFTER_INACTIVITY = 1000;
+    private static final SecureRandom SECURE_RANDOM = new SecureRandom();
+    private static final int NONCE_MAX_RANGE = 1000000;
 
+    // ======================== 线程安全的全局变量 ========================
+    private static volatile String adminUrl;
+    private static volatile String adminSecret;
+    private static volatile CloseableHttpClient httpClient;
+
+
+    // ======================== 初始化方法 ========================
     public static void init(String url, String secret) {
-        init(url, secret, 15000);
+        init(url, secret, DEFAULT_SOCKET_TIMEOUT);
     }
 
+    /**
+     * 初始化HTTP客户端和配置
+     * @param url IM服务管理地址
+     * @param secret 管理密钥
+     * @param timeout 套接字超时时间（毫秒）
+     */
     public static synchronized void init(String url, String secret, int timeout) {
+        // 参数校验
+        if (isNullOrEmpty(url) || isNullOrEmpty(secret)) {
+            throw new IllegalArgumentException("IM服务地址或密钥不能为空");
+        }
         adminUrl = url.trim();
         adminSecret = secret.trim();
-        if(httpClient == null) {
+
+        // 若已存在HttpClient，先关闭再重新初始化（支持配置更新）
+        if (httpClient != null) {
+            try {
+                httpClient.close();
+            } catch (IOException e) {
+                LOG.error("关闭旧HttpClient连接池失败", e);
+            }
+        }
+
+        // 初始化连接池
         PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
-            cm.setValidateAfterInactivity(1000);
-            int connectTimeout = 15000; // 连接超时时间
-            int connectionRequestTimeout = 3000; // 从连接池获取连接的超时时间
+        cm.setValidateAfterInactivity(VALIDATE_AFTER_INACTIVITY);
+
+        // 构建请求配置
         RequestConfig requestConfig = RequestConfig.custom()
-                .setConnectTimeout(connectTimeout)
+            .setConnectTimeout(DEFAULT_CONNECT_TIMEOUT)
             .setSocketTimeout(timeout)
-                .setConnectionRequestTimeout(connectionRequestTimeout)
+            .setConnectionRequestTimeout(DEFAULT_CONNECTION_REQUEST_TIMEOUT)
             .build();
 
+        // 构建HttpClient
         httpClient = HttpClients.custom()
             .setDefaultRequestConfig(requestConfig)
             .setConnectionManager(cm)
             .evictExpiredConnections()
-                .evictIdleConnections(60L, TimeUnit.SECONDS)
-                .setRetryHandler(DefaultHttpRequestRetryHandler.INSTANCE)
-                .setMaxConnTotal(100)
-                .setMaxConnPerRoute(50)
+            .evictIdleConnections(IDLE_CONNECTION_EVICT_TIME, TimeUnit.SECONDS)
+            .setRetryHandler(new DefaultHttpRequestRetryHandler(3, false)) // 重试3次，不重试IO异常
+            .setMaxConnTotal(MAX_CONN_TOTAL)
+            .setMaxConnPerRoute(MAX_CONN_PER_ROUTE)
             .build();
-        }
+
+        LOG.info("AdminHttpUtils初始化完成，IM服务地址：{}", adminUrl);
     }
 
+    // ======================== HTTP GET请求 ========================
     public static <T> IMResult<T> httpGet(String path, Class<T> clazz) throws Exception {
-        if (isNullOrEmpty(adminUrl) || isNullOrEmpty(adminSecret)) {
-            LOG.error("野火IM Server SDK必须先初始化才能使用，是不是忘记初始化了！请调用AdminConfig.initAdmin(AdminUrl, AdminSecret);进行初始化");
-            throw new Exception("SDK没有初始化，请调用AdminConfig.initAdmin(AdminUrl, AdminSecret);进行初始化");
-        }
-
+        // 前置校验
+        validateInitStatus(adminUrl, adminSecret, httpClient);
         if (isNullOrEmpty(path)) {
-            throw new Exception("路径缺失");
+            throw new IllegalArgumentException("请求路径不能为空");
         }
-        HttpGet get = null;
+
+        HttpGet httpGet = new HttpGet(adminUrl + path);
         try {
-            get = new HttpGet(adminUrl + path);
-            HttpResponse response = httpClient.execute(get);
-
-            int statusCode = response.getStatusLine().getStatusCode();
-            String content = null;
-            if (response.getEntity().getContentLength() > 0) {
-                BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "utf-8"));
-                StringBuilder sb = new StringBuilder();
-                String line;
-                String NL = System.getProperty("line.separator");
-                while ((line = in.readLine()) != null) {
-                    sb.append(line).append(NL);
-                }
-
-                in.close();
-
-                content = sb.toString();
-                LOG.info("http request response content: {}", content);
-            }
-
-            if(statusCode != HttpStatus.SC_OK){
-                LOG.info("Request error: " + statusCode + " error msg:" + content);
-                throw new Exception("Http request error with code:" + statusCode);
-            } else {
-                return fromJsonObject(content, clazz);
-            }
+            HttpResponse response = httpClient.execute(httpGet);
+            return handleResponse(response, clazz, adminUrl, adminSecret);
         } catch (Exception e) {
-            e.printStackTrace();
-            throw e;
+            LOG.error("HTTP GET请求失败，路径：{}", path, e);
+            throw new Exception("HTTP GET请求异常：" + e.getMessage(), e);
         } finally {
-            if(get != null) {
-                get.releaseConnection();
-            }
+            httpGet.releaseConnection();
         }
     }
 
+    // ======================== HTTP JSON POST请求 ========================
     public static <T> IMResult<T> httpJsonPost(String path, Object object, Class<T> clazz) throws Exception {
-        if (isNullOrEmpty(adminUrl) || isNullOrEmpty(adminSecret)) {
-            LOG.error("野火IM Server SDK必须先初始化才能使用，是不是忘记初始化了！请调用AdminConfig.initAdmin(AdminUrl, AdminSecret);进行初始化");
-            throw new Exception("SDK没有初始化，请调用AdminConfig.initAdmin(AdminUrl, AdminSecret);进行初始化");
-        }
-
-        if (isNullOrEmpty(path)) {
-            throw new Exception("路径缺失");
-        }
-
-        String url = adminUrl + path;
-        HttpPost post = null;
-
-        try {
-            int nonce = (int)(Math.random() * 100000 + 3);
+        return httpJsonPost(adminUrl, adminSecret, httpClient, path, object, clazz, httpPost -> {
+            // 构建签名头
+            int nonce = SECURE_RANDOM.nextInt(NONCE_MAX_RANGE) + 1; // 安全随机数
             long timestamp = System.currentTimeMillis();
-            String str = nonce + "|" + adminSecret + "|" + timestamp;
-            String sign = DigestUtils.sha1Hex(str);
+            String signStr = nonce + "|" + adminSecret + "|" + timestamp;
+            String sign = DigestUtils.sha1Hex(signStr);
 
-            post = new HttpPost(url);
-            post.setHeader("Content-type", "application/json; charset=utf-8");
-            post.setHeader("Connection", "Keep-Alive");
-            post.setHeader("nonce", nonce + "");
-            post.setHeader("timestamp", "" + timestamp);
-            post.setHeader("sign", sign);
-
-            String jsonStr = "";
-            if (object != null) {
-                jsonStr = gson.toJson(object);
-            }
-            LOG.info("http request:{} content: {}", url, jsonStr);
-
-            StringEntity entity = new StringEntity(jsonStr, Charset.forName("UTF-8"));
-            entity.setContentEncoding("UTF-8");
-            entity.setContentType("application/json");
-            post.setEntity(entity);
-            HttpResponse response = httpClient.execute(post);
-
-            int statusCode = response.getStatusLine().getStatusCode();
-            String content = null;
-            if (response.getEntity().getContentLength() > 0) {
-                BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "utf-8"));
-                StringBuilder sb = new StringBuilder();
-                String line;
-                String NL = System.getProperty("line.separator");
-                while ((line = in.readLine()) != null) {
-                    sb.append(line).append(NL);
-                }
-
-                in.close();
-
-                content = sb.toString();
-                LOG.info("http request response content: {}", content);
-            }
-
-            if(statusCode != HttpStatus.SC_OK){
-                LOG.info("Request error: " + statusCode + " error msg:" + content);
-                throw new Exception("Http request error with code:" + statusCode);
-            } else {
-                IMResult<T> result = fromJsonObject(content, clazz);
-                if(result != null){
-                    if(result.getErrorCode() == ErrorCode.ERROR_CODE_AUTH_FAILURE) {
-                        LOG.error("鉴权失败，IM服务地址或者密钥配置错误，请检查IM服务{}的配置文件中的http.admin.secret_key是否是{}", adminUrl, adminSecret);
-                    } else if(result.getErrorCode() == ErrorCode.ERROR_CODE_SIGN_EXPIRED) {
-                        LOG.error("时间验证失败，请确保当前服务和IM服务{}的时间是一致的", adminUrl);
-                    }
-                }
-                return result;
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-            throw e;
-        } finally {
-            if(post != null) {
-                post.releaseConnection();
-            }
-        }
+            // 设置请求头
+            httpPost.setHeader("Content-type", "application/json; charset=utf-8");
+            httpPost.setHeader("Connection", "Keep-Alive");
+            httpPost.setHeader("nonce", String.valueOf(nonce));
+            httpPost.setHeader("timestamp", String.valueOf(timestamp));
+            httpPost.setHeader("sign", sign);
+        });
     }
 }

sdk/src/main/java/cn/wildfirechat/sdk/utilities/ChannelHttpUtils.java

@@ -30,9 +30,8 @@ import java.nio.charset.Charset;
 import java.util.concurrent.TimeUnit;
 
 
-public class ChannelHttpUtils extends JsonUtils implements Closeable {
+public class ChannelHttpUtils extends HttpUtils implements Closeable {
     private static final Logger LOG = LoggerFactory.getLogger(ChannelHttpUtils.class);
-    public static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
 
     private String imurl;
     private String channelId;
@@ -88,71 +87,19 @@ public class ChannelHttpUtils extends JsonUtils implements Closeable {
     }
 
     public <T> IMResult<T> httpJsonPost(String path, Object object, Class<T> clazz) throws Exception{
-        if (isNullOrEmpty(imurl) || isNullOrEmpty(path)) {
-            LOG.error("Not init IM SDK correctly. Do you forget init it?");
-            throw new Exception("SDK url or secret lack!");
-        }
-
-        String url = imurl + path;
-        HttpPost post = null;
-        try {
+        return httpJsonPost(imurl, channelId, httpClient, path, object, clazz, post -> {
             int nonce = (int)(Math.random() * 100000 + 3);
             long timestamp = System.currentTimeMillis();
             String str = nonce + "|" + channelSecret + "|" + timestamp;
             String sign = DigestUtils.sha1Hex(str);
 
-
-            post = new HttpPost(url);
             post.setHeader("Content-type", "application/json; charset=utf-8");
             post.setHeader("Connection", "Keep-Alive");
             post.setHeader("nonce", nonce + "");
             post.setHeader("timestamp", "" + timestamp);
             post.setHeader("cid", channelId);
             post.setHeader("sign", sign);
-
-
-            String jsonStr = "";
-            if (object != null) {
-                jsonStr = gson.toJson(object);
-            }
-            LOG.info("http request:{} content: {}", url, jsonStr);
-
-            StringEntity entity = new StringEntity(jsonStr, Charset.forName("UTF-8"));
-            entity.setContentEncoding("UTF-8");
-            entity.setContentType("application/json");
-            post.setEntity(entity);
-            HttpResponse response = httpClient.execute(post);
-
-            int statusCode = response.getStatusLine().getStatusCode();
-            if(statusCode != HttpStatus.SC_OK){
-                LOG.info("Request error: "+statusCode);
-                throw new Exception("Http request error with code:" + statusCode);
-            }else{
-                BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity()
-                    .getContent(),"utf-8"));
-                StringBuffer sb = new StringBuffer();
-                String line;
-                String NL = System.getProperty("line.separator");
-                while ((line = in.readLine()) != null) {
-                    sb.append(line + NL);
-                }
-
-                in.close();
-
-                String content = sb.toString();
-                LOG.info("http request response content: {}", content);
-
-                return fromJsonObject(content, clazz);
-            }
-        } catch (Exception e) {
-            checkPort();
-            e.printStackTrace();
-            throw e;
-        }finally{
-            if(post != null){
-                post.releaseConnection();
-            }
-        }
+        });
     }
 
     public String getChannelId() {

sdk/src/main/java/cn/wildfirechat/sdk/utilities/HttpUtils.java

@@ -0,0 +1,161 @@
+package cn.wildfirechat.sdk.utilities;
+
+import cn.wildfirechat.common.ErrorCode;
+import cn.wildfirechat.sdk.model.IMResult;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.http.HttpResponse;
+import org.apache.http.HttpStatus;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.config.RequestConfig;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.security.SecureRandom;
+import java.util.concurrent.TimeUnit;
+
+public class HttpUtils extends JsonUtils {
+    // ======================== 常量定义（消除硬编码）========================
+    private static final Logger LOG = LoggerFactory.getLogger(HttpUtils.class);
+    public static final Gson GSON = new GsonBuilder().disableHtmlEscaping().create();
+
+    public static interface HeaderCallback {
+        public void addHeaders(HttpPost httpPost);
+    }
+
+    // ======================== HTTP JSON POST请求 ========================
+    public static <T> IMResult<T> httpJsonPost(String adminUrl, String adminSecret, HttpClient httpClient, String path, Object object, Class<T> clazz, HeaderCallback headerCallback) throws Exception {
+        // 前置校验
+        validateInitStatus(adminUrl, adminSecret, httpClient);
+        if (isNullOrEmpty(path)) {
+            throw new IllegalArgumentException("请求路径不能为空");
+        }
+
+        String url = adminUrl + path;
+        HttpPost httpPost = new HttpPost(url);
+        try {
+            headerCallback.addHeaders(httpPost);
+
+            // 设置请求体
+            String jsonStr = object == null ? "" : GSON.toJson(object);
+            LOG.info("HTTP POST请求：{}，请求体：{}", url, truncateLogContent(jsonStr));
+            StringEntity entity = new StringEntity(jsonStr, StandardCharsets.UTF_8);
+            entity.setContentEncoding(StandardCharsets.UTF_8.name());
+            entity.setContentType("application/json");
+            httpPost.setEntity(entity);
+
+            // 执行请求并处理响应
+            HttpResponse response = httpClient.execute(httpPost);
+            return handleResponse(response, clazz, adminUrl, adminSecret);
+        } catch (Exception e) {
+            LOG.error("HTTP POST请求失败，路径：{}", path, e);
+            throw new Exception("HTTP POST请求异常：" + e.getMessage(), e);
+        } finally {
+            httpPost.releaseConnection();
+        }
+    }
+
+    // ======================== 私有工具方法 ========================
+    /**
+     * 校验初始化状态
+     */
+    protected static void validateInitStatus(String adminUrl, String adminSecret, HttpClient httpClient) {
+        if (isNullOrEmpty(adminUrl) || isNullOrEmpty(adminSecret) || httpClient == null) {
+            String errorMsg = "野火IM Server SDK未初始化，请调用AdminConfig.initAdmin(AdminUrl, AdminSecret)完成初始化";
+            LOG.error(errorMsg);
+            throw new IllegalStateException(errorMsg);
+        }
+    }
+
+    /**
+     * 处理HTTP响应，统一解析逻辑
+     */
+    protected static <T> IMResult<T> handleResponse(HttpResponse response, Class<T> clazz, String adminUrl, String adminSecret) throws Exception {
+        int statusCode = response.getStatusLine().getStatusCode();
+        String content = readResponseContent(response);
+
+        // 非200状态码处理
+        if (statusCode != HttpStatus.SC_OK) {
+            String errorMsg = String.format("HTTP请求失败，状态码：%d，响应内容：%s", statusCode, truncateLogContent(content));
+            LOG.error(errorMsg);
+            throw new Exception(errorMsg);
+        }
+
+        // 解析响应体
+        IMResult<T> result = fromJsonObject(content, clazz);
+        if (result != null) {
+            if (result.getErrorCode() == ErrorCode.ERROR_CODE_AUTH_FAILURE) {
+                LOG.error("鉴权失败，请检查IM服务地址({})或密钥({})配置", adminUrl, maskSecret(adminSecret));
+            } else if (result.getErrorCode() == ErrorCode.ERROR_CODE_SIGN_EXPIRED) {
+                LOG.error("签名过期，请确保当前服务与IM服务({})时间同步", adminUrl);
+            }
+        }
+        return result;
+    }
+
+    /**
+     * 读取响应体（兼容分块传输，修复getContentLength=-1问题）
+     */
+    protected static String readResponseContent(HttpResponse response) throws IOException {
+        if (response.getEntity() == null) {
+            return "";
+        }
+
+        // 使用try-with-resources自动关闭所有流，避免资源泄漏
+        try (InputStream is = response.getEntity().getContent();
+             InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
+             BufferedReader br = new BufferedReader(isr)) {
+
+            StringBuilder sb = new StringBuilder();
+            String line;
+            String nl = System.getProperty("line.separator");
+            while ((line = br.readLine()) != null) {
+                sb.append(line).append(nl);
+            }
+            String content = sb.toString().trim();
+            LOG.info("HTTP响应内容：{}", truncateLogContent(content));
+            return content;
+        }
+    }
+
+    /**
+     * 截断超长日志内容（避免日志爆炸）
+     */
+    protected static String truncateLogContent(String content) {
+        if (content == null) {
+            return "";
+        }
+        int maxLength = 1024;
+        return content.length() > maxLength ? content.substring(0, maxLength) + "..." : content;
+    }
+
+    /**
+     * 掩码处理密钥（避免日志泄露敏感信息）
+     */
+    protected static String maskSecret(String secret) {
+        if (isNullOrEmpty(secret) || secret.length() <= 4) {
+            return "******";
+        }
+        return secret.substring(0, 2) + "******" + secret.substring(secret.length() - 2);
+    }
+
+    /**
+     * 空值判断（补充实现，避免依赖外部未定义方法）
+     */
+    public static boolean isNullOrEmpty(String str) {
+        return str == null || str.trim().isEmpty();
+    }
+}

sdk/src/main/java/cn/wildfirechat/sdk/utilities/RobotHttpUtils.java

@@ -31,7 +31,7 @@ import java.nio.charset.Charset;
 import java.util.concurrent.TimeUnit;
 
 
-public class RobotHttpUtils extends JsonUtils implements Closeable {
+public class RobotHttpUtils extends HttpUtils implements Closeable {
     private static final Logger LOG = LoggerFactory.getLogger(RobotHttpUtils.class);
     public static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
 
@@ -90,72 +90,19 @@ public class RobotHttpUtils extends JsonUtils implements Closeable {
 
 
     public <T> IMResult<T> httpJsonPost(String path, Object object, Class<T> clazz) throws Exception{
-        if (isNullOrEmpty(url) || isNullOrEmpty(path)) {
-            LOG.error("Not init IM SDK correctly. Do you forget init it?");
-            throw new Exception("SDK url or secret lack!");
-        }
-
-        String url = this.url + path;
-        HttpPost post = null;
-        try {
+        return httpJsonPost(url, robotId, httpClient, path, object, clazz, post -> {
             int nonce = (int)(Math.random() * 100000 + 3);
             long timestamp = System.currentTimeMillis();
             String str = nonce + "|" + robotSecret + "|" + timestamp;
             String sign = DigestUtils.sha1Hex(str);
 
-
-            post = new HttpPost(url);
             post.setHeader("Content-type", "application/json; charset=utf-8");
             post.setHeader("Connection", "Keep-Alive");
             post.setHeader("nonce", nonce + "");
             post.setHeader("timestamp", "" + timestamp);
             post.setHeader("rid", robotId);
             post.setHeader("sign", sign);
-
-            String jsonStr = null;
-            if (object != null) {
-                jsonStr = gson.toJson(object);
-            }
-            LOG.info("http request:{} content: {}", url, jsonStr);
-
-            if(!StringUtil.isNullOrEmpty(jsonStr)) {
-                StringEntity entity = new StringEntity(jsonStr, Charset.forName("UTF-8"));
-                entity.setContentEncoding("UTF-8");
-                entity.setContentType("application/json");
-                post.setEntity(entity);
-            }
-            HttpResponse response = httpClient.execute(post);
-
-            int statusCode = response.getStatusLine().getStatusCode();
-            if(statusCode != HttpStatus.SC_OK){
-                LOG.info("Request error: "+statusCode);
-                throw new Exception("Http request error with code:" + statusCode);
-            }else{
-                BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity()
-                    .getContent(),"utf-8"));
-                StringBuffer sb = new StringBuffer();
-                String line;
-                String NL = System.getProperty("line.separator");
-                while ((line = in.readLine()) != null) {
-                    sb.append(line + NL);
-                }
-
-                in.close();
-
-                String content = sb.toString();
-                LOG.info("http request response content: {}", content);
-
-                return fromJsonObject(content, clazz);
-            }
-        } catch (Exception e) {
-            checkPort();
-            e.printStackTrace();
-            throw e;
-        }finally{
-            if(post != null){
-                post.releaseConnection();
-            }
-        }
+        });
     }
 
     public String getRobotId() {