ManagedLedgerInfo.java

/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed 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.bookkeeper.mledger;

import java.util.List;
import java.util.Map;

public class ManagedLedgerInfo {
    /** Z-Node version */
    public int version;
    public String creationDate;
    public String modificationDate;

    public List<LedgerInfo> ledgers;

    public Map<String, CursorInfo> cursors;

    public static class LedgerInfo {
        public long ledgerId;
        public Long entries;
        public Long size;
        public Long timestamp;
    }

    public static class CursorInfo {
        /** Z-Node version */
        public int version;
        public String creationDate;
        public String modificationDate;

        // If the ledger id is -1, then the mark-delete position is
        // the one from the (ledgerId, entryId) snapshot below
        public long cursorsLedgerId;

        // Last snapshot of the mark-delete position
        public PositionInfo markDelete;
        public List<MessageRangeInfo> individualDeletedMessages;
    }

    public static class PositionInfo {
        public long ledgerId;
        public long entryId;

        @Override
        public String toString() {
            return String.format("%d:%d", ledgerId, entryId);
        }
    }

    public static class MessageRangeInfo {
        // Starting of the range (not included)
        public PositionInfo from = new PositionInfo();

        // End of the range (included)
        public PositionInfo to = new PositionInfo();

        @Override
        public String toString() {
            return String.format("(%s, %s]", from, to);
        }
    }
}