Split out yang-model-ri

[yangtools.git] / yang / yang-model-ri / src / main / java / org / opendaylight / yangtools / yang / model / ri / type / BitsTypeBuilder.java

diff --git a/yang/yang-model-ri/src/main/java/org/opendaylight/yangtools/yang/model/ri/type/BitsTypeBuilder.java b/yang/yang-model-ri/src/main/java/org/opendaylight/yangtools/yang/model/ri/type/BitsTypeBuilder.java
new file mode 100644 (file)
index 0000000..25b876e
--- /dev/null
+++ b/yang/yang-model-ri/src/main/java/org/opendaylight/yangtools/yang/model/ri/type/BitsTypeBuilder.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2015 Pantheon Technologies s.r.o. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.yangtools.yang.model.ri.type;
+
+import com.google.common.collect.ImmutableMap;
+import java.util.Map;
+import java.util.TreeMap;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.common.Uint32;
+import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
+
+public final class BitsTypeBuilder extends AbstractRestrictedTypeBuilder<BitsTypeDefinition> {
+    private final ImmutableMap.Builder<String, Bit> builder = ImmutableMap.builder();
+
+    BitsTypeBuilder(final QName qname) {
+        super(null, qname);
+    }
+
+    BitsTypeBuilder(final BitsTypeDefinition baseType, final QName qname) {
+        super(baseType, qname);
+    }
+
+    public BitsTypeBuilder addBit(final @NonNull Bit item) {
+        // in case we are dealing with a restricted bits type, validate if the bit is a subset of its base type
+        if (getBaseType() != null) {
+            validateRestrictedBit(item);
+        }
+
+        builder.put(item.getName(), item);
+        touch();
+        return this;
+    }
+
+    private void validateRestrictedBit(final @NonNull Bit item) {
+        boolean isASubsetOfBaseBits = false;
+        for (Bit baseTypeBit : getBaseType().getBits()) {
+            if (item.getName().equals(baseTypeBit.getName())) {
+                if (item.getPosition() != baseTypeBit.getPosition()) {
+                    throw new InvalidBitDefinitionException(item, "Position of bit '%s' must be the same as the "
+                            + "position of corresponding bit in the base bits type %s.", item.getName(),
+                            getBaseType().getQName());
+                }
+                isASubsetOfBaseBits = true;
+                break;
+            }
+        }
+
+        if (!isASubsetOfBaseBits) {
+            throw new InvalidBitDefinitionException(item, "Bit '%s' is not a subset of its base bits type %s.",
+                    item.getName(), getBaseType().getQName());
+        }
+    }
+
+    @Override
+    public BitsTypeDefinition buildType() {
+        final Map<String, Bit> map = builder.build();
+        final Map<Uint32, Bit> positionMap = new TreeMap<>();
+
+        for (Bit b : map.values()) {
+            final Bit conflict = positionMap.put(b.getPosition(), b);
+            if (conflict != null) {
+                throw new InvalidBitDefinitionException(b, "Bit %s conflicts on position with bit ", conflict);
+            }
+        }
+
+        return getBaseType() == null ? new BaseBitsType(getQName(), getUnknownSchemaNodes(), positionMap.values())
+                : new RestrictedBitsType(getBaseType(), getQName(), getUnknownSchemaNodes(), positionMap.values());
+    }
+}