/*
 * 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.
 */

package org.apache.ignite.internal.pagememory.tree;

import java.util.ArrayList;
import java.util.List;
import org.apache.ignite.lang.IgniteBiTuple;

/**
 * This exception indicates that there's something wrong with B+Tree data integrity.
 *
 * <p>Additional info about corrupted pages is present in fields.
 */
public class BplusTreeRuntimeException extends RuntimeException {
    /** Serial version uid. */
    private static final long serialVersionUID = 0L;

    /** Group id common for all potentially corrupted pages. */
    private final int grpId;

    /** Ids of potentially corrupted pages. */
    private final long[] pageIds;

    /**
     * Constructor.
     *
     * @param cause Cause.
     * @param grpId Group id common for all potentially corrupted pages.
     * @param pageIds Ids of potentially corrupted pages.
     */
    public BplusTreeRuntimeException(Throwable cause, int grpId, long... pageIds) {
        super(cause);

        this.grpId = grpId;
        this.pageIds = pageIds;
    }

    /**
     * Returns pairs of (groupId, pageId).
     */
    public List<IgniteBiTuple<Integer, Long>> pages() {
        List<IgniteBiTuple<Integer, Long>> res = new ArrayList<>(pageIds.length);

        for (long pageId : pageIds) {
            res.add(new IgniteBiTuple<>(grpId, pageId));
        }

        return res;
    }
}
