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/*-
 * Copyright (C) 2011, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This file was distributed by Oracle as part of a version of Oracle NoSQL
 * Database made available at:
 *
 * http://www.oracle.com/technetwork/database/database-technologies/nosqldb/downloads/index.html
 *
 * Please see the LICENSE file included in the top-level directory of the
 * appropriate version of Oracle NoSQL Database for a copy of the license and
 * additional information.
 */

package oracle.kv.impl.api.ops;

import java.util.Collections;
import java.util.List;
import oracle.kv.impl.api.ops.InternalOperation.OpCode;
import oracle.kv.impl.api.ops.MultiGetBatchExecutor.MultiGetBatchHandler;
import oracle.kv.impl.security.KVStorePrivilege;
import oracle.kv.impl.security.NamespacePrivilege;
import oracle.kv.impl.security.SystemPrivilege;
import oracle.kv.impl.security.TablePrivilege;
import oracle.kv.impl.topo.PartitionId;
import com.sleepycat.je.Transaction;

/**
 * Base server handler for subclasses of MultiGetBatchIterateOperation
 */
abstract class MultiGetBatchIterateOperationHandler
    
        extends MultiKeyOperationHandler
        implements MultiGetBatchHandler {

    MultiGetBatchIterateOperationHandler(OperationHandler handler,
                                         OpCode opCode,
                                         Class operationType) {

        super(handler, opCode, operationType);
    }

    @Override
    Result execute(T op,
                   Transaction txn,
                   PartitionId partitionId) {

        final MultiGetBatchExecutor executor =
            new MultiGetBatchExecutor(this);
        return executor.execute(op, txn, partitionId, op.getParentKeys(),
                                op.getResumeKey(), op.getBatchSize());
    }

    @Override
    List schemaAccessPrivileges() {
        return SystemPrivilege.schemaReadPrivList;
    }

    @Override
    List generalAccessPrivileges() {
        return SystemPrivilege.readOnlyPrivList;
    }

    @Override
    public List
        tableAccessPrivileges(long tableId) {

        return Collections.singletonList(
            new TablePrivilege.ReadTable(tableId));
    }

    @Override
    public List
        namespaceAccessPrivileges(String namespace) {

        return Collections.singletonList(
            new NamespacePrivilege.ReadInNamespace(namespace));
    }
}