| /** |
| * |
| * 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.bookkeeper.proto; |
| |
| import io.netty.buffer.Unpooled; |
| import io.netty.channel.Channel; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.bookkeeper.bookie.BookieException; |
| import org.apache.bookkeeper.net.BookieSocketAddress; |
| import org.apache.bookkeeper.proto.BookkeeperProtocol.Request; |
| import org.apache.bookkeeper.proto.BookkeeperProtocol.Response; |
| import org.apache.bookkeeper.proto.BookkeeperProtocol.StatusCode; |
| import org.apache.bookkeeper.proto.BookkeeperProtocol.WriteLacRequest; |
| import org.apache.bookkeeper.proto.BookkeeperProtocol.WriteLacResponse; |
| import org.apache.bookkeeper.util.MathUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| class WriteLacProcessorV3 extends PacketProcessorBaseV3 implements Runnable { |
| private static final Logger logger = LoggerFactory.getLogger(WriteLacProcessorV3.class); |
| |
| public WriteLacProcessorV3(Request request, Channel channel, |
| BookieRequestProcessor requestProcessor) { |
| super(request, channel, requestProcessor); |
| } |
| |
| // Returns null if there is no exception thrown |
| private WriteLacResponse getWriteLacResponse() { |
| final long startTimeNanos = MathUtils.nowInNano(); |
| WriteLacRequest writeLacRequest = request.getWriteLacRequest(); |
| long lac = writeLacRequest.getLac(); |
| long ledgerId = writeLacRequest.getLedgerId(); |
| |
| final WriteLacResponse.Builder writeLacResponse = WriteLacResponse.newBuilder().setLedgerId(ledgerId); |
| |
| if (!isVersionCompatible()) { |
| writeLacResponse.setStatus(StatusCode.EBADVERSION); |
| return writeLacResponse.build(); |
| } |
| |
| if (requestProcessor.bookie.isReadOnly()) { |
| logger.warn("BookieServer is running as readonly mode, so rejecting the request from the client!"); |
| writeLacResponse.setStatus(StatusCode.EREADONLY); |
| return writeLacResponse.build(); |
| } |
| |
| BookkeeperInternalCallbacks.WriteCallback writeCallback = new BookkeeperInternalCallbacks.WriteCallback() { |
| @Override |
| public void writeComplete(int rc, long ledgerId, long entryId, BookieSocketAddress addr, Object ctx) { |
| if (BookieProtocol.EOK == rc) { |
| requestProcessor.getRequestStats().getWriteLacStats() |
| .registerSuccessfulEvent(MathUtils.elapsedNanos(startTimeNanos), TimeUnit.NANOSECONDS); |
| } else { |
| requestProcessor.getRequestStats().getWriteLacStats() |
| .registerFailedEvent(MathUtils.elapsedNanos(startTimeNanos), TimeUnit.NANOSECONDS); |
| } |
| |
| StatusCode status; |
| switch (rc) { |
| case BookieProtocol.EOK: |
| status = StatusCode.EOK; |
| break; |
| case BookieProtocol.EIO: |
| status = StatusCode.EIO; |
| break; |
| default: |
| status = StatusCode.EUA; |
| break; |
| } |
| writeLacResponse.setStatus(status); |
| Response.Builder response = Response.newBuilder() |
| .setHeader(getHeader()) |
| .setStatus(writeLacResponse.getStatus()) |
| .setWriteLacResponse(writeLacResponse); |
| Response resp = response.build(); |
| sendResponse(status, resp, requestProcessor.getRequestStats().getWriteLacRequestStats()); |
| } |
| }; |
| |
| StatusCode status = null; |
| ByteBuffer lacToAdd = writeLacRequest.getBody().asReadOnlyByteBuffer(); |
| byte[] masterKey = writeLacRequest.getMasterKey().toByteArray(); |
| |
| try { |
| requestProcessor.bookie.setExplicitLac(Unpooled.wrappedBuffer(lacToAdd), writeCallback, channel, masterKey); |
| status = StatusCode.EOK; |
| } catch (IOException e) { |
| logger.error("Error saving lac {} for ledger:{}", |
| lac, ledgerId, e); |
| status = StatusCode.EIO; |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| logger.error("Interrupted while saving lac {} for ledger:{}", |
| lac, ledgerId, e); |
| status = StatusCode.EIO; |
| } catch (BookieException e) { |
| logger.error("Unauthorized access to ledger:{} while adding lac:{}", |
| ledgerId, lac, e); |
| status = StatusCode.EUA; |
| } catch (Throwable t) { |
| logger.error("Unexpected exception while writing lac {} for ledger:{}", |
| lac, ledgerId, t); |
| // some bad request which cause unexpected exception |
| status = StatusCode.EBADREQ; |
| } |
| |
| // If everything is okay, we return null so that the calling function |
| // dosn't return a response back to the caller. |
| if (!status.equals(StatusCode.EOK)) { |
| requestProcessor.getRequestStats().getWriteLacStats() |
| .registerFailedEvent(MathUtils.elapsedNanos(startTimeNanos), TimeUnit.NANOSECONDS); |
| writeLacResponse.setStatus(status); |
| return writeLacResponse.build(); |
| } |
| return null; |
| } |
| |
| @Override |
| public void safeRun() { |
| WriteLacResponse writeLacResponse = getWriteLacResponse(); |
| if (null != writeLacResponse) { |
| Response.Builder response = Response.newBuilder() |
| .setHeader(getHeader()) |
| .setStatus(writeLacResponse.getStatus()) |
| .setWriteLacResponse(writeLacResponse); |
| Response resp = response.build(); |
| sendResponse( |
| writeLacResponse.getStatus(), |
| resp, |
| requestProcessor.getRequestStats().getWriteLacRequestStats()); |
| } |
| } |
| |
| /** |
| * this toString method filters out body and masterKey from the output. |
| * masterKey contains the password of the ledger and body is customer data, |
| * so it is not appropriate to have these in logs or system output. |
| */ |
| @Override |
| public String toString() { |
| return RequestUtils.toSafeString(request); |
| } |
| } |
| |
| |