From bce221a3de2e3d3cdb28d3c56bad8f6760ae4900 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Tue, 21 Jun 2016 13:46:12 +0200
Subject: [PATCH] WIP

---
 .../java/de/juplo/jackson/SimpleMapper.java   | 100 ++++--------------
 1 file changed, 20 insertions(+), 80 deletions(-)

diff --git a/src/main/java/de/juplo/jackson/SimpleMapper.java b/src/main/java/de/juplo/jackson/SimpleMapper.java
index 941c4b1..33133f6 100644
--- a/src/main/java/de/juplo/jackson/SimpleMapper.java
+++ b/src/main/java/de/juplo/jackson/SimpleMapper.java
@@ -58,9 +58,7 @@ public class SimpleMapper
     }
 
     if (!JsonToken.START_ARRAY.equals(token))
-    {
-      throw new IllegalArgumentException("The root-element must be an array!");
-    }
+      fail(parser, "The root-element must be an array!");
 
     return new Spliterator<Object>()
     {
@@ -71,7 +69,7 @@ public class SimpleMapper
         {
           JsonToken token = parser.nextToken();
           if (token == null)
-            throw new IllegalArgumentException("Unexpected end of data!");
+            fail(parser, "Unexpected end of data!");
           if (JsonToken.END_ARRAY.equals(token))
             return false;
           action.accept(convert(parser));
@@ -107,97 +105,39 @@ public class SimpleMapper
       throws
         IOException
   {
-    JsonToken token = parser.nextToken();
-
-    if (token == null)
-    {
-      LOG.warn("empty input");
-      return Collections.emptyIterator();
-    }
-
-    if (!JsonToken.START_ARRAY.equals(token))
-    {
-      throw new IllegalArgumentException("The root-element must be an array!");
-    }
-
+    Spliterator<Object> spliterator = getArraySpliterator(parser);
     return new Iterator<Object>()
     {
+      private Object next = null;
       
       @Override
-      public boolean tryAdvance(Consumer<? super Object> action)
+      public boolean hasNext()
       {
-        try
-        {
-          JsonToken token = parser.nextToken();
-          if (token == null)
-            throw new IllegalArgumentException("Unexpected end of data!");
-          if (JsonToken.END_ARRAY.equals(token))
-            throw new NoSuchElementException();
-          action.accept(convert(parser));
+        if (next != null)
           return true;
-        }
-        catch (IOException e)
+
+        return spliterator.tryAdvance(new Consumer<Object>()
         {
-          throw new IllegalArgumentException(e);
-        }
-      }
-      @Override
-      public boolean hasNext()
-      {
+          @Override
+          public void accept(Object o)
+          {
+            next = o;
+          }
+        });
       }
 
       @Override
       public Object next()
       {
-        try
-        {
-          JsonToken token = parser.nextToken();
-          if (token == null)
-            throw new IllegalArgumentException("Unexpected end of data!");
-          if (JsonToken.END_ARRAY.equals(token))
-            return false;
-          action.accept(convert(parser));
-          return true;
-        }
-        catch (IOException e)
-        {
-          throw new IllegalArgumentException(e);
-        }
+        if (next == null && !hasNext())
+          throw new NoSuchElementException();
+        Object o = next;
+        next = null;
+        return o;
       }
     };
   }
 
-  public Object processAttribute(InputStream is)
-  {
-    try
-    {
-      /**
-       * Read the JSON and create the variables
-       */
-      JsonParser parser = factory.createParser(is);
-
-      JsonToken token = parser.nextToken();
-
-      if (token == null)
-      {
-        LOG.warn("empty input-stream");
-        return null;
-      }
-
-      Object result = convert(parser);
-
-      if (parser.nextToken() != null)
-        fail(parser, "unexpected data after parsed variables");
-
-      return result;
-    }
-    catch (IOException e)
-    {
-      LOG.error("cannot parse input-stream as JSON: {}", e.getMessage());
-      throw new RuntimeException(e);
-    }
-  }
-
 
   static Object convert(JsonParser parser) throws IOException
   {
@@ -277,6 +217,6 @@ public class SimpleMapper
         location.getLineNr(),
         location.getColumnNr()
         );
-    throw new RuntimeException("Cannot parse JSON: " + message);
+    throw new IllegalArgumentException("Cannot parse JSON: " + message);
   }
 }
-- 
2.20.1