Move pcep base parser Activator to its own bundle

[bgpcep.git] / pcep / base-parser / src / main / java / org / opendaylight / protocol / pcep / parser / subobject / EROIpv6PrefixSubobjectParser.java

diff --git a/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/subobject/EROIpv6PrefixSubobjectParser.java b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/subobject/EROIpv6PrefixSubobjectParser.java
new file mode 100644 (file)
index 0000000..03d9817
--- /dev/null
+++ b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/subobject/EROIpv6PrefixSubobjectParser.java
@@ -0,0 +1,67 @@
+/*
+ * 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.subobject;
+
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv6Prefix;
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.opendaylight.protocol.pcep.spi.EROSubobjectParser;
+import org.opendaylight.protocol.pcep.spi.EROSubobjectSerializer;
+import org.opendaylight.protocol.pcep.spi.EROSubobjectUtil;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.util.ByteArray;
+import org.opendaylight.protocol.util.Ipv6Util;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.Subobject;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.SubobjectBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.IpPrefixSubobject;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.IpPrefixCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.IpPrefixCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.ip.prefix._case.IpPrefixBuilder;
+
+/**
+ * Parser for {@link IpPrefixCase}
+ */
+public class EROIpv6PrefixSubobjectParser implements EROSubobjectParser, EROSubobjectSerializer {
+
+    public static final int TYPE = 2;
+
+    private static final int PREFIX_F_OFFSET = Ipv6Util.IPV6_LENGTH;
+
+    private static final int RESERVED = 1;
+
+    private static final int CONTENT_LENGTH = PREFIX_F_OFFSET + RESERVED + 1;
+
+    @Override
+    public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
+        Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+        final SubobjectBuilder builder = new SubobjectBuilder();
+        builder.setLoose(loose);
+        if (buffer.readableBytes() != CONTENT_LENGTH) {
+            throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
+        }
+        final int length = buffer.getUnsignedByte(PREFIX_F_OFFSET);
+        final IpPrefixBuilder prefix = new IpPrefixBuilder().setIpPrefix(new IpPrefix(Ipv6Util.prefixForBytes(ByteArray.readBytes(buffer,
+                Ipv6Util.IPV6_LENGTH), length)));
+        builder.setSubobjectType(new IpPrefixCaseBuilder().setIpPrefix(prefix.build()).build());
+        return builder.build();
+    }
+
+    @Override
+    public void serializeSubobject(final Subobject subobject, final ByteBuf buffer) {
+        Preconditions.checkArgument(subobject.getSubobjectType() instanceof IpPrefixCase, "Unknown subobject instance. Passed %s. Needed IpPrefixCase.", subobject.getSubobjectType().getClass());
+        final IpPrefixSubobject specObj = ((IpPrefixCase) subobject.getSubobjectType()).getIpPrefix();
+        final IpPrefix prefix = specObj.getIpPrefix();
+        final ByteBuf body = Unpooled.buffer();
+        Preconditions.checkArgument(prefix.getIpv6Prefix() != null, "Ipv6Prefix is mandatory.");
+        writeIpv6Prefix(prefix.getIpv6Prefix(), body);
+        body.writeZero(RESERVED);
+        EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), body, buffer);
+    }
+}