| package org.apache.bookkeeper.client; |
| |
| /* |
| * |
| * 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. |
| * |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.jboss.netty.buffer.ChannelBufferInputStream; |
| |
| /** |
| * Ledger entry. Its a simple tuple containing the ledger id, the entry-id, and |
| * the entry content. |
| * |
| */ |
| |
| public class LedgerEntry { |
| Logger LOG = LoggerFactory.getLogger(LedgerEntry.class); |
| |
| long ledgerId; |
| long entryId; |
| long length; |
| ChannelBufferInputStream entryDataStream; |
| |
| LedgerEntry(long lId, long eId) { |
| this.ledgerId = lId; |
| this.entryId = eId; |
| } |
| |
| public long getLedgerId() { |
| return ledgerId; |
| } |
| |
| public long getEntryId() { |
| return entryId; |
| } |
| |
| public long getLength() { |
| return length; |
| } |
| |
| public byte[] getEntry() { |
| try { |
| // In general, you can't rely on the available() method of an input |
| // stream, but ChannelBufferInputStream is backed by a byte[] so it |
| // accurately knows the # bytes available |
| byte[] ret = new byte[entryDataStream.available()]; |
| entryDataStream.readFully(ret); |
| return ret; |
| } catch (IOException e) { |
| // The channelbufferinput stream doesnt really throw the |
| // ioexceptions, it just has to be in the signature because |
| // InputStream says so. Hence this code, should never be reached. |
| LOG.error("Unexpected IOException while reading from channel buffer", e); |
| return new byte[0]; |
| } |
| } |
| |
| public InputStream getEntryInputStream() { |
| return entryDataStream; |
| } |
| } |