Fix sonar warnings

[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / spi / meta / StmtContextUtils.java

diff --git a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/spi/meta/StmtContextUtils.java b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/spi/meta/StmtContextUtils.java
index 1838e6effc97c288cd70b5d8f860ecd8469d37b7..a410c197d9fae6d06bf63124117e2fd9a2ad8e3a 100644 (file)
--- a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/spi/meta/StmtContextUtils.java
+++ b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/spi/meta/StmtContextUtils.java
@@ -8,6 +8,7 @@
 package org.opendaylight.yangtools.yang.parser.spi.meta;
 
 import com.google.common.base.Function;
+import java.util.Collection;
 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
 
@@ -15,14 +16,14 @@ public final class StmtContextUtils {
 
     private static final Function<StmtContext<?, ?,?>, DeclaredStatement<?>> BUILD_DECLARED = new Function<StmtContext<?,?,?>, DeclaredStatement<?>>() {
         @Override
-        public DeclaredStatement<?> apply(StmtContext<?,?,?> input) {
+        public DeclaredStatement<?> apply(final StmtContext<?, ?, ?> input) {
             return input.buildDeclared();
         }
     };
 
     private static final Function<StmtContext<?, ?,?>, EffectiveStatement<?,?>> BUILD_EFFECTIVE = new Function<StmtContext<?,?,?>, EffectiveStatement<?,?>>() {
         @Override
-        public EffectiveStatement<?,?> apply(StmtContext<?,?,?> input) {
+        public EffectiveStatement<?, ?> apply(final StmtContext<?, ?, ?> input) {
             return input.buildEffective();
         }
     };
@@ -37,21 +38,112 @@ public final class StmtContextUtils {
     }
 
     @SuppressWarnings("unchecked")
-    public static <E extends EffectiveStatement<?,?>> Function<StmtContext<?, ?,? extends E>, E> buildEffective() {
+    public static <E extends EffectiveStatement<?, ?>> Function<StmtContext<?, ?, ? extends E>, E> buildEffective() {
         return Function.class.cast(BUILD_EFFECTIVE);
     }
 
     @SuppressWarnings("unchecked")
-    public static <AT,DT extends DeclaredStatement<AT>> AT firstAttributeOf(Iterable<? extends StmtContext<?,?,?>> contexts, Class<DT> declaredType) {
-        for(StmtContext<?, ?, ?> ctx : contexts) {
-            if(producesDeclared(ctx,declaredType)) {
+    public static <AT, DT extends DeclaredStatement<AT>> AT firstAttributeOf(
+            final Iterable<? extends StmtContext<?, ?, ?>> contexts,
+            final Class<DT> declaredType) {
+        for (StmtContext<?, ?, ?> ctx : contexts) {
+            if (producesDeclared(ctx, declaredType)) {
                 return (AT) ctx.getStatementArgument();
             }
         }
         return null;
     }
 
-    public static boolean producesDeclared(StmtContext<?, ?, ?> ctx, Class<? extends DeclaredStatement<?>> type) {
-        return type.isAssignableFrom(ctx.getPublicDefinition().getDeclaredRepresentationClass());
+    @SuppressWarnings("unchecked")
+    public static <AT, DT extends DeclaredStatement<AT>> AT firstAttributeOf(
+            final StmtContext<?, ?, ?> ctx, final Class<DT> declaredType) {
+
+        if (producesDeclared(ctx, declaredType)) {
+            return (AT) ctx.getStatementArgument();
+        }
+
+        return null;
+    }
+
+    public static <DT extends DeclaredStatement<?>> StmtContext<?, ?, ?> findFirstDeclaredSubstatement(
+            final StmtContext<?, ?, ?> stmtContext, final Class<DT> declaredType) {
+        Collection<? extends StmtContext<?, ?, ?>> declaredSubstatements = stmtContext
+                .declaredSubstatements();
+        for (StmtContext<?, ?, ?> subStmtContext : declaredSubstatements) {
+            if (producesDeclared(subStmtContext,declaredType)) {
+                return subStmtContext;
+            }
+        }
+        return null;
+    }
+
+    public static StmtContext<?, ?, ?> findFirstDeclaredSubstatement(
+            final StmtContext<?, ?, ?> stmtContext, int startIndex, final Class<? extends DeclaredStatement<?>>... types) {
+
+        if (startIndex >= types.length) {
+            return null;
+        }
+
+        Collection<? extends StmtContext<?, ?, ?>> declaredSubstatements = stmtContext
+                .declaredSubstatements();
+        for (StmtContext<?, ?, ?> subStmtContext : declaredSubstatements) {
+            if (producesDeclared(subStmtContext,types[startIndex])) {
+                if (startIndex + 1 == types.length) {
+                    return subStmtContext;
+                } else {
+                    return findFirstDeclaredSubstatement(subStmtContext,
+                            ++startIndex, types);
+                }
+            }
+        }
+        return null;
+    }
+
+    public static <DT extends DeclaredStatement<?>> StmtContext<?, ?, ?> findFirstDeclaredSubstatementOnSublevel(
+            final StmtContext<?, ?, ?> stmtContext, final Class<DT> declaredType,
+            int sublevel) {
+        Collection<? extends StmtContext<?, ?, ?>> declaredSubstatements = stmtContext
+                .declaredSubstatements();
+        for (StmtContext<?, ?, ?> subStmtContext : declaredSubstatements) {
+            if (sublevel == 1 && producesDeclared(subStmtContext,declaredType)) {
+                return subStmtContext;
+            } else {
+                if (sublevel > 1) {
+                    StmtContext<?, ?, ?> result = findFirstDeclaredSubstatementOnSublevel(
+                            subStmtContext, declaredType, --sublevel);
+                    if (result != null) {
+                        return result;
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    public static <DT extends DeclaredStatement<?>> StmtContext<?, ?, ?> findDeepFirstDeclaredSubstatement(
+            final StmtContext<?, ?, ?> stmtContext, final Class<DT> declaredType) {
+
+        Collection<? extends StmtContext<?, ?, ?>> declaredSubstatements = stmtContext
+                .declaredSubstatements();
+
+        for (StmtContext<?, ?, ?> subStmtContext : declaredSubstatements) {
+            if (producesDeclared(subStmtContext,declaredType)) {
+                return subStmtContext;
+            } else {
+                StmtContext<?, ?, ?> result = findDeepFirstDeclaredSubstatement(
+                        subStmtContext, declaredType);
+                if (result != null) {
+                    return result;
+                }
+
+            }
+        }
+        return null;
+    }
+
+    public static boolean producesDeclared(final StmtContext<?, ?, ?> ctx,
+            final Class<? extends DeclaredStatement<?>> type) {
+        return type.isAssignableFrom(ctx.getPublicDefinition()
+                .getDeclaredRepresentationClass());
     }
 }