/*
 * Copyright (c) 2014 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.controller.cluster.datastore.modification;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
import org.opendaylight.controller.cluster.datastore.util.InstanceIdentifierUtils;
import org.opendaylight.controller.cluster.datastore.utils.SerializationUtils;
import org.opendaylight.controller.protobuff.messages.persistent.PersistentMessages;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;

/**
 * DeleteModification store all the parameters required to delete a path from the data tree
 */
public class DeleteModification extends AbstractModification {
    private static final long serialVersionUID = 1L;

    public DeleteModification() {
        this(DataStoreVersions.CURRENT_VERSION);
    }

    public DeleteModification(short version) {
        super(version);
    }

    public DeleteModification(YangInstanceIdentifier path) {
        super(path);
    }

    @Override
    public void apply(DOMStoreWriteTransaction transaction) {
        transaction.delete(getPath());
    }

    @Override
    public void apply(DataTreeModification transaction) {
        transaction.delete(getPath());
    }

    @Override
    public byte getType() {
        return DELETE;
    }

    @Override
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        setPath(SerializationUtils.deserializePath(in));
    }

    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
        SerializationUtils.serializePath(getPath(), out);
    }

    @Override
    @Deprecated
    public Object toSerializable() {
        return PersistentMessages.Modification.newBuilder().setType(this.getClass().toString())
                .setPath(InstanceIdentifierUtils.toSerializable(getPath())).build();
    }

    @Deprecated
    public static DeleteModification fromSerializable(Object serializable) {
        PersistentMessages.Modification o = (PersistentMessages.Modification) serializable;
        return new DeleteModification(InstanceIdentifierUtils.fromSerializable(o.getPath()));
    }

    public static DeleteModification fromStream(ObjectInput in, short version)
            throws ClassNotFoundException, IOException {
        DeleteModification mod = new DeleteModification(version);
        mod.readExternal(in);
        return mod;
    }
}