简化Yaml.toYaml方法实现

src/main/kotlin/cn/tursom/core/Parser.kt

@@ -4,8 +4,12 @@ import java.lang.reflect.Array
 import java.lang.reflect.Field
 import java.lang.reflect.Modifier
 import java.lang.reflect.ParameterizedType
+import java.util.*
+import kotlin.collections.ArrayList
+import kotlin.collections.HashSet
 
 object Parser {
+  private val simpleDateFormat = ThreadLocalSimpleDateFormat()
   private val Field.actualTypeArguments get() = (genericType as ParameterizedType).actualTypeArguments[0] as Class<*>
 
   fun <T> parse(yaml: Any, clazz: Class<T>): T? {
@@ -26,6 +30,7 @@ object Parser {
         Float::class.java -> yaml.toFloat()
         Double::class.java -> yaml.toDouble()
         Boolean::class.java -> yaml.toBoolean()
+        Date::class.java -> yaml.toDate()
 
         getClazz<Int>() -> yaml.toInt()
         getClazz<Long>() -> yaml.toLong()
@@ -174,4 +179,23 @@ object Parser {
     is Map<*, *> -> null
     else -> toString().toBoolean()
   }
+
+  private fun Any.toDate(): Date? = when (this) {
+    is Number -> Date(toLong())
+    is Boolean -> null
+    is String -> when (val time = toLongOrNull()) {
+      null -> simpleDateFormat.get().parse(this)
+      else -> Date(time)
+    }
+    is Iterable<*> -> null
+    is Iterator<*> -> null
+    is Map<*, *> -> null
+    else -> {
+      val str = toString()
+      when (val time = str.toLongOrNull()) {
+        null -> simpleDateFormat.get().parse(str)
+        else -> Date(time)
+      }
+    }
+  }
 }

src/main/kotlin/cn/tursom/core/ThreadLocalSimpleDateFormat.kt

@@ -2,6 +2,6 @@ package cn.tursom.core
 
 import java.text.SimpleDateFormat
 
-class ThreadLocalSimpleDateFormat(val format: String) : SimpThreadLocal<SimpleDateFormat>({
+class ThreadLocalSimpleDateFormat(val format: String = "YYYY-MM-dd'T'HH:mm:ssZZ") : SimpThreadLocal<SimpleDateFormat>({
   SimpleDateFormat(format)
 })

utils/yaml/src/main/kotlin/cn/tursom/yaml/Yaml.kt

@@ -1,13 +1,16 @@
 package cn.tursom.yaml
 
 import cn.tursom.core.Parser
+import cn.tursom.core.ThreadLocalSimpleDateFormat
 import cn.tursom.core.getClazz
 import org.yaml.snakeyaml.Yaml
 import java.lang.reflect.Modifier
+import java.util.*
 
 
 @Suppress("MemberVisibilityCanBePrivate", "unused")
 object Yaml {
+  private val simpleDateFormat = ThreadLocalSimpleDateFormat()
   private val yaml = Yaml()
 
   fun toYaml(obj: Any): String {
@@ -25,7 +28,19 @@ object Yaml {
       is Long -> stringBuilder.append(obj)
       is Float -> stringBuilder.append(obj)
       is Double -> stringBuilder.append(obj)
-      is String -> stringBuilder.append(obj)
+      is Date -> stringBuilder.append(simpleDateFormat.get().format(obj))
+      is String -> when {
+        obj.contains('\n') -> {
+          stringBuilder.append("|${if (obj.endsWith('\n')) '+' else '-'}")
+          obj.split('\n').forEach {
+            stringBuilder.append("$indentation$it")
+          }
+        }
+        obj.startsWith('|') -> stringBuilder.append("\"$obj\"")
+        else -> {
+          stringBuilder.append(obj)
+        }
+      }
       is Map<*, *> -> {
         var first = true
         obj.forEach { (any, u) ->
@@ -67,28 +82,10 @@ object Yaml {
           if ((it.modifiers and (Modifier.STATIC or Modifier.TRANSIENT)) != 0) return@forEach
           it.isAccessible = true
           val value = it.get(obj)
-          when (it.type) {
+          stringBuilder.append("${getIndentation()}${it.name}: ")
-            Byte::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
+          toYaml(value, stringBuilder, "${getIndentation()}  ")
-            Char::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
+          if (!stringBuilder.endsWith('\n')) {
-            Short::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
+            stringBuilder.append("\n")
-            Int::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            Long::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            Float::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            Double::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-
-            getClazz<Byte>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Char>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Short>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Int>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Long>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Float>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            getClazz<Double>() -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-            String::class.java -> stringBuilder.append("${getIndentation()}${it.name}: $value\n")
-
-            else -> {
-              stringBuilder.append("${getIndentation()}${it.name}: ")
-              toYaml(value, stringBuilder, "${getIndentation()}  ")
-            }
           }
         }
       }