新增注释，方便理解

proxy-client/src/main/java/org/fengfei/lanproxy/client/SslContextCreator.java

@@ -22,19 +22,19 @@ import org.slf4j.LoggerFactory;
 
 public class SslContextCreator {
 
-    private static Logger logger = LoggerFactory.getLogger(SslContextCreator.class);
+    private static Logger LOGGER = LoggerFactory.getLogger(SslContextCreator.class);
 
     public static SSLContext createSSLContext() {
         return new SslContextCreator().initSSLContext();
     }
 
     public SSLContext initSSLContext() {
-        logger.info("Checking SSL configuration properties...");
+        LOGGER.info("Checking SSL configuration properties...");
         final String jksPath = Config.getInstance().getStringValue("ssl.jksPath");
-        logger.info("Initializing SSL context. KeystorePath = {}.", jksPath);
+        LOGGER.info("Initializing SSL context. KeystorePath = {}.", jksPath);
         if (jksPath == null || jksPath.isEmpty()) {
             // key_store_password or key_manager_password are empty
-            logger.warn("The keystore path is null or empty. The SSL context won't be initialized.");
+            LOGGER.warn("The keystore path is null or empty. The SSL context won't be initialized.");
             return null;
         }
 
@@ -46,7 +46,7 @@ public class SslContextCreator {
         // added to the ServerContext
 
         try {
-            logger.info("Loading keystore. KeystorePath = {}.", jksPath);
+            LOGGER.info("Loading keystore. KeystorePath = {}.", jksPath);
             InputStream jksInputStream = jksDatastore(jksPath);
             SSLContext clientSSLContext = SSLContext.getInstance("TLS");
             final KeyStore ks = KeyStore.getInstance("JKS");
@@ -57,14 +57,14 @@ public class SslContextCreator {
             TrustManager[] trustManagers = tmf.getTrustManagers();
 
             // init sslContext
-            logger.info("Initializing SSL context...");
+            LOGGER.info("Initializing SSL context...");
             clientSSLContext.init(null, trustManagers, null);
-            logger.info("The SSL context has been initialized successfully.");
+            LOGGER.info("The SSL context has been initialized successfully.");
 
             return clientSSLContext;
         } catch (NoSuchAlgorithmException | CertificateException | KeyStoreException | KeyManagementException
                 | IOException ex) {
-            logger.error("Unable to initialize SSL context. Cause = {}, errorMessage = {}.", ex.getCause(),
+            LOGGER.error("Unable to initialize SSL context. Cause = {}, errorMessage = {}.", ex.getCause(),
                     ex.getMessage());
             return null;
         }
@@ -73,18 +73,18 @@ public class SslContextCreator {
     private InputStream jksDatastore(String jksPath) throws FileNotFoundException {
         URL jksUrl = getClass().getClassLoader().getResource(jksPath);
         if (jksUrl != null) {
-            logger.info("Starting with jks at {}, jks normal {}", jksUrl.toExternalForm(), jksUrl);
+            LOGGER.info("Starting with jks at {}, jks normal {}", jksUrl.toExternalForm(), jksUrl);
             return getClass().getClassLoader().getResourceAsStream(jksPath);
         }
 
-        logger.warn("No keystore has been found in the bundled resources. Scanning filesystem...");
+        LOGGER.warn("No keystore has been found in the bundled resources. Scanning filesystem...");
         File jksFile = new File(jksPath);
         if (jksFile.exists()) {
-            logger.info("Loading external keystore. Url = {}.", jksFile.getAbsolutePath());
+            LOGGER.info("Loading external keystore. Url = {}.", jksFile.getAbsolutePath());
             return new FileInputStream(jksFile);
         }
 
-        logger.warn("The keystore file does not exist. Url = {}.", jksFile.getAbsolutePath());
+        LOGGER.warn("The keystore file does not exist. Url = {}.", jksFile.getAbsolutePath());
         return null;
     }
 }