| /** |
| * 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.activemq.kaha.impl.async; |
| |
| import java.io.IOException; |
| |
| import org.apache.activeio.journal.InvalidRecordLocationException; |
| import org.apache.activeio.journal.Journal; |
| import org.apache.activeio.journal.JournalEventListener; |
| import org.apache.activeio.journal.RecordLocation; |
| import org.apache.activeio.packet.ByteArrayPacket; |
| import org.apache.activeio.packet.Packet; |
| import org.apache.activemq.util.ByteSequence; |
| |
| /** |
| * Provides a Journal Facade to the DataManager. |
| * |
| * |
| */ |
| public final class JournalFacade implements Journal { |
| |
| private final AsyncDataManager dataManager; |
| |
| public static class RecordLocationFacade implements RecordLocation { |
| private final Location location; |
| |
| public RecordLocationFacade(Location location) { |
| this.location = location; |
| } |
| |
| public Location getLocation() { |
| return location; |
| } |
| |
| public int compareTo(Object o) { |
| RecordLocationFacade rlf = (RecordLocationFacade)o; |
| int rc = location.compareTo(rlf.location); |
| return rc; |
| } |
| } |
| |
| public JournalFacade(AsyncDataManager dataManager) { |
| this.dataManager = dataManager; |
| } |
| |
| private static RecordLocation convertToRecordLocation(Location location) { |
| if (location == null) { |
| return null; |
| } |
| return new RecordLocationFacade(location); |
| } |
| |
| private static Location convertFromRecordLocation(RecordLocation location) { |
| |
| if (location == null) { |
| return null; |
| } |
| |
| return ((RecordLocationFacade)location).getLocation(); |
| } |
| |
| public void close() throws IOException { |
| dataManager.close(); |
| } |
| |
| public RecordLocation getMark() throws IllegalStateException { |
| return convertToRecordLocation(dataManager.getMark()); |
| } |
| |
| public RecordLocation getNextRecordLocation(RecordLocation location) throws InvalidRecordLocationException, IOException, IllegalStateException { |
| return convertToRecordLocation(dataManager.getNextLocation(convertFromRecordLocation(location))); |
| } |
| |
| public Packet read(RecordLocation location) throws InvalidRecordLocationException, IOException, IllegalStateException { |
| ByteSequence rc = dataManager.read(convertFromRecordLocation(location)); |
| if (rc == null) { |
| return null; |
| } |
| return new ByteArrayPacket(rc.getData(), rc.getOffset(), rc.getLength()); |
| } |
| |
| public void setJournalEventListener(JournalEventListener listener) throws IllegalStateException { |
| } |
| |
| public void setMark(RecordLocation location, boolean sync) throws InvalidRecordLocationException, IOException, IllegalStateException { |
| dataManager.setMark(convertFromRecordLocation(location), sync); |
| } |
| |
| public RecordLocation write(Packet packet, boolean sync) throws IOException, IllegalStateException { |
| org.apache.activeio.packet.ByteSequence data = packet.asByteSequence(); |
| ByteSequence sequence = new ByteSequence(data.getData(), data.getOffset(), data.getLength()); |
| return convertToRecordLocation(dataManager.write(sequence, sync)); |
| } |
| |
| public RecordLocation write(Packet packet, Runnable onComplete) throws IOException, IllegalStateException { |
| org.apache.activeio.packet.ByteSequence data = packet.asByteSequence(); |
| ByteSequence sequence = new ByteSequence(data.getData(), data.getOffset(), data.getLength()); |
| return convertToRecordLocation(dataManager.write(sequence, onComplete)); |
| } |
| |
| } |