利用匿名函数优化重复代码

src/main/java/com/sjhy/plugin/tool/ProjectUtils.java

@@ -26,11 +26,11 @@ public class ProjectUtils {
      * @return 当前项目对象
      */
     public static Project getCurrProject() {
-
         ProjectManager projectManager = ProjectManager.getInstance();
         Project[] openProjects = projectManager.getOpenProjects();
         if (openProjects.length == 0) {
-            return projectManager.getDefaultProject();//正常情况下不会发生
+            // 在未打开任何项目，进入到设置页面时会出现
+            return projectManager.getDefaultProject();
         } else if (openProjects.length == 1) {
             // 只存在一个打开的项目则使用打开的项目
             return openProjects[0];

src/main/java/com/sjhy/plugin/tool/StringUtils.java

@@ -1,5 +1,8 @@
 package com.sjhy.plugin.tool;
 
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
 /**
  * 添加字符串工具类，为了兼容JB的各种产品，尽量不要用第三方工具包
  *
@@ -7,7 +10,39 @@ package com.sjhy.plugin.tool;
  * @version 1.0.0
  * @since 2018/08/07 11:52
  */
+@SuppressWarnings("WeakerAccess")
 public class StringUtils {
+
+    /**
+     * 首字母处理方法
+     */
+    private static final BiFunction<String, Function<Integer, Integer>, String> FIRST_CHAR_HANDLER_FUN = (str, firstCharFun) -> {
+        int strLen;
+        if (str == null || (strLen = str.length()) == 0) {
+            return str;
+        }
+
+        final int firstCodepoint = str.codePointAt(0);
+        final int newCodePoint = firstCharFun.apply(firstCodepoint);
+        if (firstCodepoint == newCodePoint) {
+            // already capitalized
+            return str;
+        }
+
+        // cannot be longer than the char array
+        final int[] newCodePoints = new int[strLen];
+        int outOffset = 0;
+        // copy the first codepoint
+        newCodePoints[outOffset++] = newCodePoint;
+        for (int inOffset = Character.charCount(firstCodepoint); inOffset < strLen; ) {
+            final int codepoint = str.codePointAt(inOffset);
+            // copy the remaining ones
+            newCodePoints[outOffset++] = codepoint;
+            inOffset += Character.charCount(codepoint);
+        }
+        return new String(newCodePoints, 0, outOffset);
+    };
+
     /**
      * 判断是空字符串
      *
@@ -24,30 +59,7 @@ public class StringUtils {
      * @return 首字母大写结果
      */
     public static String capitalize(final String str) {
-        int strLen;
+        return FIRST_CHAR_HANDLER_FUN.apply(str, Character::toTitleCase);
-        if (str == null || (strLen = str.length()) == 0) {
-            return str;
-        }
-
-        final int firstCodepoint = str.codePointAt(0);
-        final int newCodePoint = Character.toTitleCase(firstCodepoint);
-        if (firstCodepoint == newCodePoint) {
-            // already capitalized
-            return str;
-        }
-
-        // cannot be longer than the char array
-        final int newCodePoints[] = new int[strLen];
-        int outOffset = 0;
-        // copy the first codepoint
-        newCodePoints[outOffset++] = newCodePoint;
-        for (int inOffset = Character.charCount(firstCodepoint); inOffset < strLen; ) {
-            final int codepoint = str.codePointAt(inOffset);
-            // copy the remaining ones
-            newCodePoints[outOffset++] = codepoint;
-            inOffset += Character.charCount(codepoint);
-        }
-        return new String(newCodePoints, 0, outOffset);
     }
 
     /**
@@ -56,29 +68,6 @@ public class StringUtils {
      * @return 首字母小写结果
      */
     public static String uncapitalize(final String str) {
-        int strLen;
+        return FIRST_CHAR_HANDLER_FUN.apply(str, Character::toLowerCase);
-        if (str == null || (strLen = str.length()) == 0) {
-            return str;
-        }
-
-        final int firstCodepoint = str.codePointAt(0);
-        final int newCodePoint = Character.toLowerCase(firstCodepoint);
-        if (firstCodepoint == newCodePoint) {
-            // already capitalized
-            return str;
-        }
-
-        // cannot be longer than the char array
-        final int newCodePoints[] = new int[strLen];
-        int outOffset = 0;
-        // copy the first codepoint
-        newCodePoints[outOffset++] = newCodePoint;
-        for (int inOffset = Character.charCount(firstCodepoint); inOffset < strLen; ) {
-            final int codepoint = str.codePointAt(inOffset);
-            // copy the remaining ones
-            newCodePoints[outOffset++] = codepoint;
-            inOffset += Character.charCount(codepoint);
-        }
-        return new String(newCodePoints, 0, outOffset);
     }
 }