Bug 2366 - new parser API - implementation of declared statements

[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / stmt / rfc6020 / KeyStatementImpl.java

diff --git a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/KeyStatementImpl.java b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/KeyStatementImpl.java
new file mode 100644 (file)
index 0000000..f80e0cd
--- /dev/null
+++ b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/KeyStatementImpl.java
@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) 2015 Cisco Systems, Inc. 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.parser.stmt.rfc6020;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
+import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.KeyStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
+import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
+import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
+import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
+
+import com.google.common.base.Splitter;
+
+public class KeyStatementImpl extends AbstractDeclaredStatement<Collection<SchemaNodeIdentifier>> implements
+        KeyStatement {
+
+    protected KeyStatementImpl(StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, ?> context) {
+        super(context);
+    }
+
+    public static class Definition
+            extends
+            AbstractStatementSupport<Collection<SchemaNodeIdentifier>, KeyStatement, EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement>> {
+
+        public static final char SEPARATOR = ' ';
+
+        public Definition() {
+            super(Rfc6020Mapping.KEY);
+        }
+
+        @Override
+        public Collection<SchemaNodeIdentifier> parseArgumentValue(StmtContext<?, ?, ?> ctx, String value)
+                throws SourceException {
+
+            Splitter keySplitter = Splitter.on(SEPARATOR).omitEmptyStrings().trimResults();
+            List<String> keyTokens = keySplitter.splitToList(value);
+
+            // to detect if key contains duplicates
+            if ((new HashSet<>(keyTokens)).size() < keyTokens.size()) {
+                throw new IllegalArgumentException();
+            }
+
+            Set<SchemaNodeIdentifier> keyNodes = new HashSet<>();
+
+            for (String keyToken : keyTokens) {
+
+                SchemaNodeIdentifier keyNode = SchemaNodeIdentifier
+                        .create(true, Utils.qNameFromArgument(ctx, keyToken));
+                keyNodes.add(keyNode);
+            }
+
+            return keyNodes;
+        }
+
+        @Override
+        public KeyStatement createDeclared(StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, ?> ctx) {
+            return new KeyStatementImpl(ctx);
+        }
+
+        @Override
+        public EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement> createEffective(
+                StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement>> ctx) {
+            throw new UnsupportedOperationException();
+        }
+    }
+
+}