HCOLL-259 added a JSON byte buffer converter

src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java

@@ -36,6 +36,8 @@ import net.openhft.lang.model.DataValueClasses;
 import net.openhft.lang.threadlocal.Provider;
 import net.openhft.lang.threadlocal.StatefulCopyable;
 import net.openhft.lang.threadlocal.ThreadLocalCopies;
+import net.openhft.xstreem.convertors.ByteBufferConverter;
+import net.openhft.xstreem.convertors.ChronicleMapConvecter;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
@@ -659,7 +661,9 @@ class VanillaChronicleMap<K, KI, MKI extends MetaBytesInterop<K, ? super KI>,
         final XStream xstream = new XStream(new JettisonMappedXmlDriver());
         xstream.setMode(XStream.NO_REFERENCES);
         xstream.alias("cmap", VanillaChronicleMap.EntrySet.class);
-        xstream.registerConverter(new ChronicleMapConvector(this));
+
+        xstream.registerConverter(new ChronicleMapConvecter(this));
+        xstream.registerConverter(new ByteBufferConverter());
 
         OutputStream outputStream = new FileOutputStream(toFile);
         if (toFile.getName().toLowerCase().endsWith(".gz"))
@@ -674,7 +678,8 @@ class VanillaChronicleMap<K, KI, MKI extends MetaBytesInterop<K, ? super KI>,
         final XStream xstream = new XStream(new JettisonMappedXmlDriver());
         xstream.setMode(XStream.NO_REFERENCES);
         xstream.alias("cmap", VanillaChronicleMap.EntrySet.class);
-        xstream.registerConverter(new ChronicleMapConvector(this));
+        xstream.registerConverter(new ChronicleMapConvecter(this));
+        xstream.registerConverter(new ByteBufferConverter());
 
         InputStream inputStream = new FileInputStream(fromFile);
         if (fromFile.getName().toLowerCase().endsWith(".gz"))

src/main/java/net/openhft/xstreem/convertors/ByteBufferConverter.java

@@ -0,0 +1,116 @@
+package net.openhft.xstreem.convertors;
+
+import com.thoughtworks.xstream.converters.ConversionException;
+import com.thoughtworks.xstream.converters.Converter;
+import com.thoughtworks.xstream.converters.MarshallingContext;
+import com.thoughtworks.xstream.converters.UnmarshallingContext;
+import com.thoughtworks.xstream.io.HierarchicalStreamReader;
+import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
+
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.*;
+
+/**
+ * Created by Rob on 22/12/14.
+ */
+public class ByteBufferConverter implements Converter {
+
+    Charset charset = Charset.forName("ISO-8859-1");
+    CharsetDecoder decoder = charset.newDecoder();
+
+    @Override
+    public void marshal(Object o, HierarchicalStreamWriter writer, MarshallingContext marshallingContext) {
+        ByteBuffer buffer = (ByteBuffer) o;
+
+        writer.startNode("position");
+        marshallingContext.convertAnother(buffer.position());
+        writer.endNode();
+
+
+        writer.startNode("capacity");
+        marshallingContext.convertAnother(buffer.capacity());
+        writer.endNode();
+
+
+        writer.startNode("limit");
+        marshallingContext.convertAnother(buffer.limit());
+        writer.endNode();
+
+
+        writer.startNode("isDirect");
+        marshallingContext.convertAnother(buffer.isDirect());
+        writer.endNode();
+
+        buffer.limit();
+        buffer.capacity();
+
+        int position = buffer.position();
+        int limit = buffer.limit();
+
+        buffer.clear();
+
+        writer.startNode("data");
+
+        try {
+            CharBuffer charBuffer = decoder.decode(buffer);
+            writer.setValue(charBuffer.toString());
+        } catch (CharacterCodingException e) {
+            throw new ConversionException("", e);
+        }
+
+
+        writer.endNode();
+
+        buffer.limit(limit);
+        buffer.position(position);
+    }
+
+    @Override
+    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext unmarshallingContext) {
+
+        reader.moveDown();
+        int position = (Integer) unmarshallingContext.convertAnother(null, int.class);
+        reader.moveUp();
+
+
+        reader.moveDown();
+        int capacity = (Integer) unmarshallingContext.convertAnother(null, int.class);
+        reader.moveUp();
+
+        reader.moveDown();
+        int limit = (Integer) unmarshallingContext.convertAnother(null, int.class);
+        reader.moveUp();
+
+        reader.moveDown();
+        boolean isDirect = (Boolean) unmarshallingContext.convertAnother(null, boolean.class);
+        reader.moveUp();
+
+        ByteBuffer buffer = isDirect ? ByteBuffer.allocateDirect(capacity) : ByteBuffer.allocate(capacity);
+        buffer.clear();
+
+        reader.moveDown();
+
+        String o = (String) unmarshallingContext.convertAnother(null, String.class);
+
+        CharBuffer uCharBuffer = CharBuffer.wrap(o);
+
+        CharsetEncoder encoder = charset.newEncoder();
+        CoderResult encode = encoder.encode(uCharBuffer, buffer, true);
+        if (encode.isError())
+            throw new ConversionException("");
+
+        buffer.limit(limit);
+        buffer.position(position);
+        reader.moveUp();
+
+        buffer.limit(limit);
+        buffer.position(position);
+        return buffer;
+    }
+
+    @Override
+    public boolean canConvert(Class aClass) {
+        return ByteBuffer.class.isAssignableFrom(aClass);
+    }
+}

src/main/java/net/openhft/xstreem/convertors/ChronicleMapConvecter.java

@@ -1,4 +1,4 @@
-package net.openhft.chronicle.map;
+package net.openhft.xstreem.convertors;
 
 import com.thoughtworks.xstream.converters.ConversionException;
 import com.thoughtworks.xstream.converters.Converter;
@@ -26,17 +26,17 @@ import static java.beans.Introspector.getBeanInfo;
 /**
  * @author Rob Austin.
  */
-public class ChronicleMapConvector<K, V> implements Converter {
+public class ChronicleMapConvecter<K, V> implements Converter {
 
-    private static final Logger LOG = LoggerFactory.getLogger(VanillaChronicleMap.class);
+    private static final Logger LOG = LoggerFactory.getLogger(ChronicleMapConvecter.class);
 
     private final Class entrySetClass;
     private final Class writeThroughEntryClass;
     private final Map<K, V> map;
 
-    public ChronicleMapConvector(@NotNull Map map) {
+    public ChronicleMapConvecter(@NotNull Map map) {
 
-        final String vanillaChronicleMap = VanillaChronicleMap.class.getCanonicalName();
+        final String vanillaChronicleMap = "net.openhft.chronicle.map.VanillaChronicleMap";
 
         try {
             this.entrySetClass = Class.forName(vanillaChronicleMap + "$EntrySet");
@@ -72,17 +72,14 @@ public class ChronicleMapConvector<K, V> implements Converter {
         if (writeThroughEntryClass.isAssignableFrom(o.getClass())) {
 
             final AbstractMap.SimpleEntry e = (AbstractMap.SimpleEntry) o;
-            Object key = e.getKey();
+
+            final Object key = e.getKey();
             writer.startNode(key.getClass().getCanonicalName());
-
-
             marshallingContext.convertAnother(key);
             writer.endNode();
 
             Object value = e.getValue();
             writer.startNode(value.getClass().getCanonicalName());
-
-
             marshallingContext.convertAnother(value);
             writer.endNode();