Added http basic authentication method [android-volley]

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/AndroidVolleyClientCodegen.java

@@ -260,6 +260,8 @@ public class AndroidVolleyClientCodegen extends DefaultCodegen implements Codege
                 (sourceFolder + File.separator + requestPackage).replace(".", java.io.File.separator), "PatchRequest.java"));
         supportingFiles.add(new SupportingFile("auth/apikeyauth.mustache",
                 (sourceFolder + File.separator + authPackage).replace(".", java.io.File.separator), "ApiKeyAuth.java"));
+        supportingFiles.add(new SupportingFile("auth/httpbasicauth.mustache",
+                (sourceFolder + File.separator + authPackage).replace(".", java.io.File.separator), "HttpBasicAuth.java"));
         supportingFiles.add(new SupportingFile("auth/authentication.mustache",
                 (sourceFolder + File.separator + authPackage).replace(".", java.io.File.separator), "Authentication.java"));
     }

modules/swagger-codegen/src/main/resources/android-volley/apiInvoker.mustache

@@ -25,6 +25,7 @@ import java.util.TimeZone;
 
 import {{invokerPackage}}.auth.Authentication;
 import {{invokerPackage}}.auth.ApiKeyAuth;
+import {{invokerPackage}}.auth.HttpBasicAuth;
 import {{invokerPackage}}.request.GetRequest;
 import {{invokerPackage}}.request.PostRequest;
 import {{invokerPackage}}.request.PutRequest;
@@ -174,6 +175,9 @@ public class ApiInvoker {
      {{#isApiKey}}
      INSTANCE.authentications.put("{{name}}", new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{^isKeyInHeader}}"query"{{/isKeyInHeader}}, "{{keyParamName}}"));
      {{/isApiKey}}
+     {{#isBasic}}
+     INSTANCE.authentications.put("{{name}}", new HttpBasicAuth());
+     {{/isBasic}}
      {{/authMethods}}
      // Prevent the authentications from being modified.
      INSTANCE.authentications = Collections.unmodifiableMap(INSTANCE.authentications);
@@ -248,6 +252,31 @@ public class ApiInvoker {
     return authentications.get(authName);
   }
 
+  /**
+  * Helper method to set username for the first HTTP basic authentication.
+  */
+  public void setUsername(String username) {
+    for (Authentication auth : authentications.values()) {
+       if (auth instanceof HttpBasicAuth) {
+           ((HttpBasicAuth) auth).setUsername(username);
+           return;
+       }
+    }
+    throw new RuntimeException("No HTTP basic authentication configured!");
+  }
+
+  /**
+  * Helper method to set password for the first HTTP basic authentication.
+  */
+  public void setPassword(String password) {
+     for (Authentication auth : authentications.values()) {
+        if (auth instanceof HttpBasicAuth) {
+           ((HttpBasicAuth) auth).setPassword(password);
+           return;
+        }
+     }
+     throw new RuntimeException("No HTTP basic authentication configured!");
+  }
 
   /**
   * Helper method to set API key value for the first API key authentication.

modules/swagger-codegen/src/main/resources/android-volley/auth/httpbasicauth.mustache

@@ -0,0 +1,35 @@
+package {{invokerPackage}}.auth;
+
+import {{invokerPackage}}.Pair;
+
+import android.util.Base64;
+
+import java.util.Map;
+import java.util.List;
+
+public class HttpBasicAuth implements Authentication {
+    private String username;
+    private String password;
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    @Override
+    public void applyToParams(List<Pair> queryParams, Map<String, String> headerParams) {
+       String str = (username == null ? "" : username) + ":" + (password == null ? "" : password);
+       headerParams.put("Authorization", "Basic " + Base64.encodeToString(str.getBytes(), Base64.DEFAULT));
+    }
+}