/* * 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.data.impl.codec; import com.google.common.base.Optional; import com.google.common.base.Preconditions; import com.google.common.base.Strings; import org.opendaylight.yangtools.yang.data.api.codec.EmptyCodec; import org.opendaylight.yangtools.yang.model.api.type.EmptyTypeDefinition; class EmptyStringCodec extends TypeDefinitionAwareCodec implements EmptyCodec { protected EmptyStringCodec(final Optional typeDef) { super(typeDef, Void.class); } @Override public final String serialize(final Void data) { return ""; } @Override public final Void deserialize(final String stringRepresentation) { Preconditions.checkArgument( Strings.isNullOrEmpty( stringRepresentation ), "The value must be empty" ); return null; } }