add flag to enable/disable logs

src/main/java/com/aliyun/oss/common/comm/ServiceClient.java

@@ -141,7 +141,8 @@ private ResponseMessage sendRequestImpl(RequestMessage request, ExecutionContext
 
                 return response;
             } catch (ServiceException sex) {
-                logException("[Server]Unable to execute HTTP request: ", sex);
+                logException("[Server]Unable to execute HTTP request: ", sex,
+                        request.getOriginalRequest().isLogEnabled());
 
                 // Notice that the response should not be closed in the
                 // finally block because if the request is successful,
@@ -152,15 +153,17 @@ private ResponseMessage sendRequestImpl(RequestMessage request, ExecutionContext
                     throw sex;
                 }
             } catch (ClientException cex) {
-                logException("[Client]Unable to execute HTTP request: ", cex);
+                logException("[Client]Unable to execute HTTP request: ", cex,
+                        request.getOriginalRequest().isLogEnabled());
 
                 closeResponseSilently(response);
 
                 if (!shouldRetry(cex, request, response, retries, retryStrategy)) {
                     throw cex;
                 }
             } catch (Exception ex) {
-                logException("[Unknown]Unable to execute HTTP request: ", ex);
+                logException("[Unknown]Unable to execute HTTP request: ", ex,
+                        request.getOriginalRequest().isLogEnabled());
 
                 closeResponseSilently(response);
 

src/main/java/com/aliyun/oss/common/utils/LogUtils.java

@@ -53,14 +53,22 @@ public static Log getLog() {
     }
 
     public static <ExType> void logException(String messagePrefix, ExType ex) {
+        logException(messagePrefix, ex, true);
+    }
+
+    public static <ExType> void logException(String messagePrefix, ExType ex, boolean logEnabled) {
 
         assert (ex instanceof Exception);
 
         String detailMessage = messagePrefix + ((Exception) ex).getMessage();
         if (ex instanceof ServiceException && errorCodeFilterList.contains(((ServiceException) ex).getErrorCode())) {
-            log.info(detailMessage);
+            if (logEnabled) {
+                log.info(detailMessage);
+            }
         } else {
-            log.warn(detailMessage);
+            if (logEnabled) {
+                log.warn(detailMessage);
+            }
         }
     }
 }

src/main/java/com/aliyun/oss/model/WebServiceRequest.java

@@ -31,6 +31,10 @@ public abstract class WebServiceRequest {
 
     private ProgressListener progressListener = ProgressListener.NOOP;
 
+    //This flag is used to enable/disable INFO and WARNING logs for requests
+    //We enable INFO and WARNING logs by default.
+    private boolean logEnabled = true;
+
     private Map<String, String> parameters = new LinkedHashMap<String, String>();
     private Map<String, String> headers = new LinkedHashMap<String, String>();
 
@@ -72,4 +76,12 @@ public void setHeaders(Map<String, String> headers) {
     public void addHeader(String key, String value) {
         this.headers.put(key, value);
     }
+
+    public boolean isLogEnabled() {
+        return logEnabled;
+    }
+
+    public void setLogEnabled(boolean logEnabled) {
+        this.logEnabled = logEnabled;
+    }
 }