org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROUnnumberedInterfaceSubobjectParser.java Source code

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Here is the source code for org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROUnnumberedInterfaceSubobjectParser.java

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/*
 * 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.protocol.rsvp.parser.impl.subobject.ero;

import com.google.common.base.Preconditions;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.opendaylight.protocol.rsvp.parser.spi.EROSubobjectParser;
import org.opendaylight.protocol.rsvp.parser.spi.EROSubobjectSerializer;
import org.opendaylight.protocol.rsvp.parser.spi.EROSubobjectUtil;
import org.opendaylight.protocol.rsvp.parser.spi.RSVPParsingException;
import org.opendaylight.protocol.rsvp.parser.spi.subobjects.CommonUnnumberedInterfaceSubobjectParser;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.UnnumberedCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.explicit.route.subobjects.list.SubobjectContainer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.explicit.route.subobjects.list.SubobjectContainerBuilder;

/**
 * Parser for {@link UnnumberedCase}
 */
public class EROUnnumberedInterfaceSubobjectParser extends CommonUnnumberedInterfaceSubobjectParser
        implements EROSubobjectParser, EROSubobjectSerializer {

    public static final int TYPE = 4;

    private static final int RESERVED = 2;

    private static final int CONTENT_LENGTH = 10;

    @Override
    public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean loose)
            throws RSVPParsingException {
        Preconditions.checkArgument(buffer != null && buffer.isReadable(),
                "Array of bytes is mandatory. Can't be null or empty.");
        if (buffer.readableBytes() != CONTENT_LENGTH) {
            throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                    + "; Expected: " + CONTENT_LENGTH + ".");
        }
        final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
        builder.setLoose(loose);
        buffer.skipBytes(RESERVED);
        builder.setSubobjectType(parseUnnumeredInterface(buffer));
        return builder.build();
    }

    @Override
    public void serializeSubobject(final SubobjectContainer subobject, final ByteBuf buffer) {
        Preconditions.checkArgument(subobject.getSubobjectType() instanceof UnnumberedCase,
                "Unknown subobject instance. Passed %s. Needed UnnumberedCase.",
                subobject.getSubobjectType().getClass());
        final ByteBuf body = Unpooled.buffer(CONTENT_LENGTH);
        body.writeZero(RESERVED);
        serializeUnnumeredInterface(((UnnumberedCase) subobject.getSubobjectType()).getUnnumbered(), body);
        EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), body, buffer);
    }
}