Move pcep base parser Activator to its own bundle

[bgpcep.git] / pcep / base-parser / src / main / java / org / opendaylight / protocol / pcep / parser / tlv / OFListTlvParser.java

diff --git a/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/tlv/OFListTlvParser.java b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/tlv/OFListTlvParser.java
new file mode 100644 (file)
index 0000000..ec6c31a
--- /dev/null
+++ b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/tlv/OFListTlvParser.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2013 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.protocol.pcep.parser.tlv;
+
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedShort;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.util.List;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.TlvParser;
+import org.opendaylight.protocol.pcep.spi.TlvSerializer;
+import org.opendaylight.protocol.pcep.spi.TlvUtil;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OfId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.list.tlv.OfList;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.list.tlv.OfListBuilder;
+
+/**
+ * Parser for {@link OfList}
+ */
+public class OFListTlvParser implements TlvParser, TlvSerializer {
+
+    public static final int TYPE = 4;
+
+    private static final int OF_CODE_ELEMENT_LENGTH = 2;
+
+    @Override
+    public OfList parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
+        if (buffer == null) {
+            return null;
+        }
+        if (buffer.readableBytes() % OF_CODE_ELEMENT_LENGTH != 0) {
+            throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ".");
+        }
+        final List<OfId> ofCodes = Lists.newArrayList();
+        while (buffer.isReadable()) {
+            ofCodes.add(new OfId(buffer.readUnsignedShort()));
+        }
+        return new OfListBuilder().setCodes(ofCodes).build();
+    }
+
+    @Override
+    public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
+        Preconditions.checkArgument(tlv instanceof OfList, "OFListTlv is mandatory.");
+        final OfList oft = (OfList) tlv;
+        final ByteBuf body = Unpooled.buffer();
+        final List<OfId> ofCodes = oft.getCodes();
+        for (OfId id : ofCodes) {
+            writeUnsignedShort(id.getValue(), body);
+        }
+        TlvUtil.formatTlv(TYPE, body, buffer);
+    }
+}