Optimize simple declared statements

[yangtools.git] / yang / yang-parser-rfc7950 / src / main / java / org / opendaylight / yangtools / yang / parser / rfc7950 / stmt / description / DescriptionStatementSupport.java

diff --git a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/description/DescriptionStatementSupport.java b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/description/DescriptionStatementSupport.java
index 6f19f0ceaa4f7e181eb4e6eaadef18e7dac4c7c2..f83401f7de0acc12de0870c99aacf70e17757228 100644 (file)
--- a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/description/DescriptionStatementSupport.java
+++ b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/description/DescriptionStatementSupport.java
@@ -7,40 +7,63 @@
  */
 package org.opendaylight.yangtools.yang.parser.rfc7950.stmt.description;
 
+import com.google.common.collect.ImmutableList;
 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
+import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionEffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionStatement;
-import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
+import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStringStatementSupport;
 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
 
-public final class DescriptionStatementSupport extends AbstractStatementSupport<String, DescriptionStatement,
-        EffectiveStatement<String, DescriptionStatement>> {
+public final class DescriptionStatementSupport
+        extends BaseStringStatementSupport<DescriptionStatement, DescriptionEffectiveStatement> {
     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(
         YangStmtMapping.DESCRIPTION).build();
+    private static final DescriptionStatementSupport INSTANCE = new DescriptionStatementSupport();
 
-    public DescriptionStatementSupport() {
+    private DescriptionStatementSupport() {
         super(YangStmtMapping.DESCRIPTION);
     }
 
+    public static DescriptionStatementSupport getInstance() {
+        return INSTANCE;
+    }
+
     @Override
     public String parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
         return value;
     }
 
     @Override
-    public DescriptionStatement createDeclared(final StmtContext<String, DescriptionStatement, ?> ctx) {
-        return new DescriptionStatementImpl(ctx);
+    protected SubstatementValidator getSubstatementValidator() {
+        return SUBSTATEMENT_VALIDATOR;
     }
 
     @Override
-    public EffectiveStatement<String, DescriptionStatement> createEffective(
-            final StmtContext<String, DescriptionStatement, EffectiveStatement<String, DescriptionStatement>> ctx) {
-        return new DescriptionEffectiveStatementImpl(ctx);
+    protected DescriptionStatement createDeclared(final StmtContext<String, DescriptionStatement, ?> ctx,
+            final ImmutableList<? extends DeclaredStatement<?>> substatements) {
+        return new RegularDescriptionStatement(ctx, substatements);
     }
 
     @Override
-    protected SubstatementValidator getSubstatementValidator() {
-        return SUBSTATEMENT_VALIDATOR;
+    protected DescriptionStatement createEmptyDeclared(final StmtContext<String, DescriptionStatement, ?> ctx) {
+        return new EmptyDescriptionStatement(ctx);
+    }
+
+    @Override
+    protected DescriptionEffectiveStatement createEffective(
+            final StmtContext<String, DescriptionStatement, DescriptionEffectiveStatement> ctx,
+            final DescriptionStatement declared,
+            final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
+        return new RegularDescriptionEffectiveStatement(declared, substatements);
+    }
+
+    @Override
+    protected DescriptionEffectiveStatement createEmptyEffective(
+            final StmtContext<String, DescriptionStatement, DescriptionEffectiveStatement> ctx,
+            final DescriptionStatement declared) {
+        return new EmptyDescriptionEffectiveStatement(declared);
     }
 }
\ No newline at end of file