From 0a9f6223b1b99310fb36d1295c867986560a3823 Mon Sep 17 00:00:00 2001
From: shalousun <smartdoc647@gmail.com>
Date: Sun, 30 May 2021 21:04:03 +0800
Subject: [PATCH] Fix Null point.

---
 .../com/power/doc/helper/JsonBuildHelper.java |  9 +------
 .../power/doc/helper/ParamsBuildHelper.java   |  9 +------
 .../java/com/power/doc/utils/DocUtil.java     | 27 +++++++++++++++++++
 3 files changed, 29 insertions(+), 16 deletions(-)

diff --git a/src/main/java/com/power/doc/helper/JsonBuildHelper.java b/src/main/java/com/power/doc/helper/JsonBuildHelper.java
index f285363b..e7f1dc30 100644
--- a/src/main/java/com/power/doc/helper/JsonBuildHelper.java
+++ b/src/main/java/com/power/doc/helper/JsonBuildHelper.java
@@ -396,14 +396,7 @@ public static String buildJson(String typeName, String genericCanonicalName,
                             Object value = JavaClassUtil.getEnumValue(javaClass, Boolean.FALSE);
                             data0.append(value).append(",");
                         } else {
-                            String[] gNameArr = DocClassUtil.getSimpleGicName(fieldGicName);
-                            if (gNameArr.length > 0) {
-                                String gName = gNameArr[0];
-                                if (gName.length() == 1) {
-                                    String gicName = genericMap.get(gName) != null ? genericMap.get(gName) : globGicName[0];
-                                    fieldGicName = fieldGicName.replace(gName,gicName);
-                                }
-                            }
+                            fieldGicName = DocUtil.formatFieldTypeGicName(genericMap, globGicName, fieldGicName);
                             data0.append(buildJson(subTypeName, fieldGicName, isResp, nextLevel, registryClasses, builder)).append(",");
                         }
                     }
diff --git a/src/main/java/com/power/doc/helper/ParamsBuildHelper.java b/src/main/java/com/power/doc/helper/ParamsBuildHelper.java
index 78a33260..7eefcfa8 100644
--- a/src/main/java/com/power/doc/helper/ParamsBuildHelper.java
+++ b/src/main/java/com/power/doc/helper/ParamsBuildHelper.java
@@ -490,14 +490,7 @@ public static List<ApiParam> buildParams(String className, String pre, int level
                         } else {
                             commonHandleParam(paramList, param, isRequired, NO_COMMENTS_FOUND + appendComment, since, strRequired);
                         }
-                        String[] gNameArr = DocClassUtil.getSimpleGicName(fieldGicName);
-                        if (gNameArr.length > 0) {
-                            String gName = gNameArr[0];
-                            if (gName.length() == 1) {
-                                String gicName = genericMap.get(gName) != null ? genericMap.get(gName) : globGicName[0];
-                                fieldGicName = fieldGicName.replace(gName,gicName);
-                            }
-                        }
+                        fieldGicName = DocUtil.formatFieldTypeGicName(genericMap, globGicName, fieldGicName);
                         fieldPid = paramList.size() + pid;
                         paramList.addAll(buildParams(fieldGicName, preBuilder.toString(), nextLevel, isRequired,
                                 isResp, registryClasses, projectBuilder, groupClasses, fieldPid, jsonRequest));
diff --git a/src/main/java/com/power/doc/utils/DocUtil.java b/src/main/java/com/power/doc/utils/DocUtil.java
index a4e1efe8..b8c259a8 100644
--- a/src/main/java/com/power/doc/utils/DocUtil.java
+++ b/src/main/java/com/power/doc/utils/DocUtil.java
@@ -609,4 +609,31 @@ public static List<ApiDocDict> buildDictionary(ApiConfig config, JavaProjectBuil
         return apiDocDictList;
     }
 
+    /**
+     * Format  field Type
+     * @param genericMap genericMap
+     * @param globGicName
+     * @param fieldGicName
+     * @return string
+     */
+    public static String formatFieldTypeGicName(Map<String, String> genericMap, String[] globGicName, String fieldGicName) {
+        String[] gNameArr = DocClassUtil.getSimpleGicName(fieldGicName);
+        if (gNameArr.length > 0) {
+            String gName = gNameArr[0];
+            if (gName.length() == 1) {
+                String gicName = "";
+                if (Objects.nonNull(genericMap.get(gName))) {
+                    gicName = genericMap.get(gName);
+                }
+                if (globGicName.length > 0) {
+                    gicName = globGicName[0];
+                }
+                if (StringUtil.isNotEmpty(gicName)) {
+                    fieldGicName = fieldGicName.replace(gName, gicName);
+                }
+            }
+        }
+        return fieldGicName;
+    }
+
 }