Parse dates

README.md

@@ -12,6 +12,7 @@ The goal of this AP is to
 - Nested serializable types
 - Arrays
 - Collections (Sets, Lists, Queues, Deques)
+- java.util.Date as iso8601
 
 ## Used properties
 Use `@GPrefer` to choose one construction method if multiple are available
@@ -29,7 +30,6 @@ Use `@GPrefer` to choose one construction method if multiple are available
 
 ## TODO
 - Maps with string, primitive or enum keys
-- Date via ISO8601Utils
 - Enums
 - Support for nested types from libraries
 - Static classes (for configs)
@@ -37,4 +37,4 @@ Use `@GPrefer` to choose one construction method if multiple are available
 ## Credit
 The Gson-Compile processor is based on [gsonvalue](https://github.com/evant/gsonvalue) and [value-processor](https://github.com/evant/value-processor) by Eva Tatarka.
 The API was inspired by [kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization) by Jetbrains
-The serialization is powered by [my fork](https://gitlab.com/JFronny/gson-comments) of [gson](https://github.com/google/gson) by Google
+The serialization is powered by [my fork](https://gitlab.com/JFronny/gson-comments) of [gson](https://github.com/google/gson) by Google

gson-compile-core/src/main/java/io/gitlab/jfronny/gson/compile/core/CCore.java

@@ -1,7 +1,21 @@
 package io.gitlab.jfronny.gson.compile.core;
 
 import io.gitlab.jfronny.commons.serialize.gson.api.v1.GsonHolder;
+import io.gitlab.jfronny.gson.JsonSyntaxException;
+import io.gitlab.jfronny.gson.internal.bind.util.ISO8601Utils;
+
+import java.text.ParseException;
+import java.text.ParsePosition;
+import java.util.Date;
 
 public class CCore {
     public static final GsonHolder HOLDER = new GsonHolder();
+
+    public static Date parseDate(String date) {
+        try {
+            return ISO8601Utils.parse(date, new ParsePosition(0));
+        } catch (ParseException e) {
+            throw new JsonSyntaxException("Failed parsing '" + date + "' as Date", e);
+        }
+    }
 }

gson-compile-example/src/main/java/io/gitlab/jfronny/gson/Main.java

@@ -31,6 +31,8 @@ public class Main {
 
         public Queue<String> queue;
 
+        public Date date;
+
         public void setJoe(String joe) {
         }
 

gson-compile-processor/src/main/java/io/gitlab/jfronny/gson/compile/processor/Cl.java

@@ -16,5 +16,6 @@ public class Cl {
     public static final ClassName SERIALIZED_NAME = ClassName.get("io.gitlab.jfronny.gson.annotations", "SerializedName");
 
     public static final ClassName GCOMMENT = ClassName.get("io.gitlab.jfronny.gson.compile.annotations", "GComment");
+    public static final ClassName GISO8601UTILS = ClassName.get("io.gitlab.jfronny.gson.internal.bind.util", "ISO8601Utils");
     public static final ClassName CCORE = ClassName.get("io.gitlab.jfronny.gson.compile.core", "CCore");
 }

gson-compile-processor/src/main/java/io/gitlab/jfronny/gson/compile/processor/adapter/Adapters.java

@@ -19,6 +19,7 @@ public class Adapters {
             new DeclaredAdapter(),
             new PrimitiveAdapter(),
             new StringAdapter(),
+            new DateAdapter(),
             new ArrayAdapter(),
             new CollectionAdapter(),
             new OtherSerializableAdapter(),

gson-compile-processor/src/main/java/io/gitlab/jfronny/gson/compile/processor/adapter/impl/DateAdapter.java

@@ -0,0 +1,32 @@
+package io.gitlab.jfronny.gson.compile.processor.adapter.impl;
+
+import io.gitlab.jfronny.gson.compile.processor.Cl;
+import io.gitlab.jfronny.gson.compile.processor.adapter.Adapter;
+
+import java.util.Date;
+
+public class DateAdapter extends Adapter<DateAdapter.Hydrated> {
+    @Override
+    public Hydrated instantiate() {
+        return new Hydrated();
+    }
+
+    public class Hydrated extends Adapter<Hydrated>.Hydrated {
+        @Override
+        public boolean applies() {
+            return type.toString().equals(Date.class.getCanonicalName());
+        }
+
+        @Override
+        public void generateWrite(Runnable writeGet) {
+            code.add("writer.value($T.format(", Cl.GISO8601UTILS);
+            writeGet.run();
+            code.add("));\n");
+        }
+
+        @Override
+        public void generateRead() {
+            code.add("$T.parseDate(reader.nextString())", Cl.CCORE);
+        }
+    }
+}