| /* |
| * 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.ignite.internal.processors.cache; |
| |
| import java.nio.ByteBuffer; |
| import javax.cache.processor.EntryProcessor; |
| import javax.cache.processor.MutableEntry; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.internal.GridDirectTransient; |
| import org.apache.ignite.internal.util.tostring.GridToStringInclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.plugin.extensions.communication.Message; |
| import org.apache.ignite.plugin.extensions.communication.MessageReader; |
| import org.apache.ignite.plugin.extensions.communication.MessageWriter; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * |
| */ |
| public class CacheInvokeDirectResult implements Message { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| private KeyCacheObject key; |
| |
| /** */ |
| @GridToStringInclude |
| private transient Object unprepareRes; |
| |
| /** */ |
| @GridToStringInclude |
| private CacheObject res; |
| |
| /** */ |
| @GridToStringInclude(sensitive = true) |
| @GridDirectTransient |
| private Exception err; |
| |
| /** */ |
| private byte[] errBytes; |
| |
| /** |
| * Required for {@link Message}. |
| */ |
| public CacheInvokeDirectResult() { |
| // No-op. |
| } |
| |
| /** |
| * @param key Key. |
| * @param res Result. |
| */ |
| public CacheInvokeDirectResult(KeyCacheObject key, CacheObject res) { |
| this.key = key; |
| this.res = res; |
| } |
| |
| /** |
| * Constructs CacheInvokeDirectResult with unprepared res, to avoid object marshaling while holding topology locks. |
| * |
| * @param key Key. |
| * @param res Result. |
| * @return a new instance of CacheInvokeDirectResult. |
| */ |
| static CacheInvokeDirectResult lazyResult(KeyCacheObject key, Object res) { |
| CacheInvokeDirectResult res0 = new CacheInvokeDirectResult(); |
| |
| res0.key = key; |
| res0.unprepareRes = res; |
| |
| return res0; |
| } |
| |
| /** |
| * @param key Key. |
| * @param err Exception thrown by {@link EntryProcessor#process(MutableEntry, Object...)}. |
| */ |
| public CacheInvokeDirectResult(KeyCacheObject key, Exception err) { |
| this.key = key; |
| this.err = err; |
| } |
| |
| /** |
| * @return Key. |
| */ |
| public KeyCacheObject key() { |
| return key; |
| } |
| |
| /** |
| * @return Result. |
| */ |
| public CacheObject result() { |
| return res; |
| } |
| |
| /** |
| * @return Error. |
| */ |
| @Nullable public Exception error() { |
| return err; |
| } |
| |
| /** |
| * @param ctx Cache context. |
| * @throws IgniteCheckedException If failed. |
| */ |
| public void prepareMarshal(GridCacheContext ctx) throws IgniteCheckedException { |
| key.prepareMarshal(ctx.cacheObjectContext()); |
| |
| if (err != null && errBytes == null) { |
| try { |
| errBytes = U.marshal(ctx.marshaller(), err); |
| } |
| catch (IgniteCheckedException e) { |
| // Try send exception even if it's unable to marshal. |
| IgniteCheckedException exc = new IgniteCheckedException(err.getMessage()); |
| |
| exc.setStackTrace(err.getStackTrace()); |
| exc.addSuppressed(e); |
| |
| errBytes = U.marshal(ctx.marshaller(), exc); |
| } |
| } |
| |
| assert unprepareRes == null : "marshalResult() was not called for the result: " + this; |
| |
| if (res != null) |
| res.prepareMarshal(ctx.cacheObjectContext()); |
| } |
| |
| /** |
| * Converts the entry processor unprepared result to a cache object instance. |
| * |
| * @param ctx Cache context. |
| */ |
| public void marshalResult(GridCacheContext ctx) { |
| try { |
| if (unprepareRes != null) |
| res = ctx.toCacheObject(unprepareRes); |
| } |
| finally { |
| unprepareRes = null; |
| } |
| } |
| |
| /** |
| * @param ctx Cache context. |
| * @param ldr Class loader. |
| * @throws IgniteCheckedException If failed. |
| */ |
| public void finishUnmarshal(GridCacheContext ctx, ClassLoader ldr) throws IgniteCheckedException { |
| key.finishUnmarshal(ctx.cacheObjectContext(), ldr); |
| |
| if (errBytes != null && err == null) |
| err = U.unmarshal(ctx.marshaller(), errBytes, U.resolveClassLoader(ldr, ctx.gridConfig())); |
| |
| if (res != null) |
| res.finishUnmarshal(ctx.cacheObjectContext(), ldr); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void onAckReceived() { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public short directType() { |
| return 93; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) { |
| writer.setBuffer(buf); |
| |
| if (!writer.isHeaderWritten()) { |
| if (!writer.writeHeader(directType(), fieldsCount())) |
| return false; |
| |
| writer.onHeaderWritten(); |
| } |
| |
| switch (writer.state()) { |
| case 0: |
| if (!writer.writeByteArray("errBytes", errBytes)) |
| return false; |
| |
| writer.incrementState(); |
| |
| case 1: |
| if (!writer.writeMessage("key", key)) |
| return false; |
| |
| writer.incrementState(); |
| |
| case 2: |
| if (!writer.writeMessage("res", res)) |
| return false; |
| |
| writer.incrementState(); |
| |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean readFrom(ByteBuffer buf, MessageReader reader) { |
| reader.setBuffer(buf); |
| |
| if (!reader.beforeMessageRead()) |
| return false; |
| |
| switch (reader.state()) { |
| case 0: |
| errBytes = reader.readByteArray("errBytes"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| case 1: |
| key = reader.readMessage("key"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| case 2: |
| res = reader.readMessage("res"); |
| |
| if (!reader.isLastRead()) |
| return false; |
| |
| reader.incrementState(); |
| |
| } |
| |
| return reader.afterMessageRead(CacheInvokeDirectResult.class); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public byte fieldsCount() { |
| return 3; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(CacheInvokeDirectResult.class, this); |
| } |
| } |