/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Cassandra internal/internode communication protocol
 */
@namespace("org.apache.cassandra")

protocol InterNode {
    // import the public client API
    import idl "../../interface/cassandra.genavro";

    @namespace("org.apache.cassandra.utils.avro")
    fixed UUID(16);

    @namespace("org.apache.cassandra.db.migration.avro")
    record AddColumnFamily {
        org.apache.cassandra.avro.CfDef cf;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record AddKeyspace {
        org.apache.cassandra.avro.KsDef ks;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record DropColumnFamily {
        string ksname;
        string cfname;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record DropKeyspace {
        string ksname;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record RenameColumnFamily {
        string ksname;
        int cfid;
        string old_cfname;
        string new_cfname;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record RenameKeyspace {
        string old_ksname;
        string new_ksname;
    }
    
    @namespace("org.apache.cassandra.db.migration.avro")
    record UpdateKeyspace {
        org.apache.cassandra.avro.KsDef oldKs;
        org.apache.cassandra.avro.KsDef newKs;
    }
    
    @namespace("org.apache.cassandra.db.migration.avro")
    record UpdateColumnFamily {
        org.apache.cassandra.avro.CfDef metadata;
    }

    @namespace("org.apache.cassandra.db.migration.avro")
    record Migration {
        org.apache.cassandra.utils.avro.UUID old_version;
        org.apache.cassandra.utils.avro.UUID new_version;
        bytes row_mutation;
        string classname;
        union { AddColumnFamily,DropColumnFamily,RenameColumnFamily,AddKeyspace,DropKeyspace,RenameKeyspace,UpdateKeyspace,UpdateColumnFamily } migration;
    }
}