| /** |
| * 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.impl; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import com.google.common.collect.RangeSet; |
| import org.apache.bookkeeper.mledger.Position; |
| import org.apache.bookkeeper.mledger.proto.MLDataFormats; |
| import org.apache.bookkeeper.mledger.proto.MLDataFormats.PositionInfo; |
| import org.apache.bookkeeper.mledger.proto.MLDataFormats.NestedPositionInfo; |
| |
| import com.google.common.base.Objects; |
| import com.google.common.collect.ComparisonChain; |
| |
| import io.netty.util.Recycler; |
| import io.netty.util.Recycler.Handle; |
| |
| public class PositionImpl implements Position, Comparable<PositionImpl> { |
| |
| private final long ledgerId; |
| private final long entryId; |
| |
| public PositionImpl(PositionInfo pi) { |
| this.ledgerId = pi.getLedgerId(); |
| this.entryId = pi.getEntryId(); |
| } |
| |
| public PositionImpl(NestedPositionInfo npi) { |
| this.ledgerId = npi.getLedgerId(); |
| this.entryId = npi.getEntryId(); |
| } |
| |
| public PositionImpl(long ledgerId, long entryId) { |
| this.ledgerId = ledgerId; |
| this.entryId = entryId; |
| } |
| |
| public PositionImpl(PositionImpl other) { |
| this.ledgerId = other.ledgerId; |
| this.entryId = other.entryId; |
| } |
| |
| public static PositionImpl get(long ledgerId, long entryId) { |
| return new PositionImpl(ledgerId, entryId); |
| } |
| |
| public static PositionImpl get(PositionImpl other) { |
| return new PositionImpl(other); |
| } |
| |
| public long getLedgerId() { |
| return ledgerId; |
| } |
| |
| public long getEntryId() { |
| return entryId; |
| } |
| |
| @Override |
| public PositionImpl getNext() { |
| return PositionImpl.get(ledgerId, entryId + 1); |
| } |
| |
| /** |
| * String representation of virtual cursor - LedgerId:EntryId |
| */ |
| @Override |
| public String toString() { |
| return String.format("%d:%d", ledgerId, entryId); |
| } |
| |
| @Override |
| public int compareTo(PositionImpl other) { |
| checkNotNull(other); |
| |
| return ComparisonChain.start().compare(this.ledgerId, other.ledgerId).compare(this.entryId, other.entryId) |
| .result(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hashCode(ledgerId, entryId); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof PositionImpl) { |
| PositionImpl other = (PositionImpl) obj; |
| return ledgerId == other.ledgerId && entryId == other.entryId; |
| } |
| |
| return false; |
| } |
| |
| public PositionInfo getPositionInfo() { |
| return PositionInfo.newBuilder().setLedgerId(ledgerId).setEntryId(entryId).build(); |
| } |
| } |