Promote SchemaUnawareCodec to a top-level construct

[mdsal.git] / binding / mdsal-binding-dom-codec / src / main / java / org / opendaylight / mdsal / binding / dom / codec / impl / ValueTypeCodec.java

diff --git a/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/mdsal/binding/dom/codec/impl/ValueTypeCodec.java b/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/mdsal/binding/dom/codec/impl/ValueTypeCodec.java
index 55e5d1a50c67cc2932e1d8196a9ca787610e1458..d9e3255027a60fb2c92e442c24088b58fd85f874 100644 (file)
--- a/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/mdsal/binding/dom/codec/impl/ValueTypeCodec.java
+++ b/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/mdsal/binding/dom/codec/impl/ValueTypeCodec.java
@@ -7,95 +7,18 @@
  */
 package org.opendaylight.mdsal.binding.dom.codec.impl;
 
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
 import org.opendaylight.yangtools.concepts.IllegalArgumentCodec;
 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
-import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
-import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
 
 /**
  * Value codec, which serializes / deserializes values from DOM simple values.
  */
 // FIXME: IllegalArgumentCodec is perhaps not appropriate here due to null behavior
 abstract class ValueTypeCodec implements IllegalArgumentCodec<Object, Object> {
-    /*
-     * Use identity comparison for keys and allow classes to be GCd themselves.
-     *
-     * Since codecs can (and typically do) hold a direct or indirect strong reference to the class, they need to be also
-     * accessed via reference. Using a weak reference could be problematic, because the codec would quite often be only
-     * weakly reachable. We therefore use a soft reference, whose implementation guidance is suitable to our use case:
-     *
-     *     "Virtual machine implementations are, however, encouraged to bias against clearing recently-created or
-     *      recently-used soft references."
-     */
-    private static final Cache<Class<?>, SchemaUnawareCodec> STATIC_CODECS = CacheBuilder.newBuilder()
-            .weakKeys().softValues().build();
-
-    /**
-     * Marker interface for codecs, which functionality will not be affected by schema change (introduction of new YANG
-     * modules) they may have one static instance generated when first time needed.
-     */
-    // FIXME: IllegalArgumentCodec is perhaps not appropriate here due to null behavior
-    interface SchemaUnawareCodec extends IllegalArgumentCodec<Object, Object> {
-
-    }
-
-    /**
-     * No-op Codec, Java YANG Binding uses same types as NormalizedNode model for base YANG types, representing numbers,
-     * binary, strings and empty.
-     */
-    public static final SchemaUnawareCodec NOOP_CODEC = new SchemaUnawareCodec() {
-        @Override
-        public Object serialize(final Object input) {
-            return input;
-        }
-
-        @Override
-        public Object deserialize(final Object input) {
-            return input;
-        }
-    };
-
-    public static SchemaUnawareCodec getCodecFor(final Class<?> typeClz, final TypeDefinition<?> def) {
-        if (BindingReflections.isBindingClass(typeClz)) {
-            return getCachedSchemaUnawareCodec(typeClz, getCodecLoader(typeClz, def));
-        }
-        return NOOP_CODEC;
-    }
-
-    private static SchemaUnawareCodec getCachedSchemaUnawareCodec(final Class<?> typeClz,
-            final Callable<? extends SchemaUnawareCodec> loader) {
-        try {
-            return STATIC_CODECS.get(typeClz, loader);
-        } catch (ExecutionException e) {
-            throw new IllegalStateException(e);
-        }
-    }
-
-    private static Callable<? extends SchemaUnawareCodec> getCodecLoader(final Class<?> typeClz,
-            final TypeDefinition<?> def) {
-
-        TypeDefinition<?> rootType = def;
-        while (rootType.getBaseType() != null) {
-            rootType = rootType.getBaseType();
-        }
-        if (rootType instanceof EnumTypeDefinition) {
-            return EnumerationCodec.loader(typeClz, (EnumTypeDefinition) rootType);
-        } else if (rootType instanceof BitsTypeDefinition) {
-            return BitsCodec.loader(typeClz, (BitsTypeDefinition) rootType);
-        }
-        return EncapsulatedValueCodec.loader(typeClz, def);
-    }
 
     @SuppressWarnings("rawtypes")
     static ValueTypeCodec encapsulatedValueCodecFor(final Class<?> typeClz, final TypeDefinition<?> typeDef,
              final IllegalArgumentCodec delegate) {
-        SchemaUnawareCodec extractor = getCachedSchemaUnawareCodec(typeClz,
-            EncapsulatedValueCodec.loader(typeClz, typeDef));
-        return new CompositeValueCodec(extractor, delegate);
+        return new CompositeValueCodec(SchemaUnawareCodec.of(typeClz, typeDef), delegate);
     }
 }