| /* |
| * 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.io.Externalizable; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import javax.cache.processor.EntryProcessor; |
| import javax.cache.processor.EntryProcessorException; |
| import javax.cache.processor.EntryProcessorResult; |
| import javax.cache.processor.MutableEntry; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.internal.UnregisteredBinaryTypeException; |
| import org.apache.ignite.internal.UnregisteredClassException; |
| import org.apache.ignite.internal.util.tostring.GridToStringInclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| |
| /** |
| * Implementation of {@link EntryProcessorResult}. |
| */ |
| public class CacheInvokeResult<T> implements EntryProcessorResult<T>, Externalizable { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| @GridToStringInclude(sensitive = true) |
| private T res; |
| |
| /** */ |
| private Exception err; |
| |
| /** |
| * Empty constructor required by {@link Externalizable}. |
| */ |
| public CacheInvokeResult() { |
| // No-op. |
| } |
| |
| /** |
| * Static constructor. |
| * |
| * @param res Computed result. |
| * @return New instance. |
| */ |
| public static <T> CacheInvokeResult<T> fromResult(T res) { |
| CacheInvokeResult<T> cacheRes = new CacheInvokeResult<>(); |
| |
| cacheRes.res = res; |
| |
| return cacheRes; |
| } |
| |
| /** |
| * @return Result. |
| */ |
| public T result() { |
| return res; |
| } |
| |
| /** |
| * Entry processor error; |
| */ |
| public Exception error() { |
| return err; |
| } |
| |
| /** |
| * Static constructor. |
| * |
| * @param err Exception thrown by {@link EntryProcessor#process(MutableEntry, Object...)}. |
| * @return New instance. |
| */ |
| public static <T> CacheInvokeResult<T> fromError(Exception err) { |
| assert err != null; |
| |
| CacheInvokeResult<T> res = new CacheInvokeResult<>(); |
| |
| res.err = err; |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public T get() throws EntryProcessorException { |
| if (err != null) { |
| if (err instanceof UnregisteredClassException || err instanceof UnregisteredBinaryTypeException) |
| throw (IgniteException) err; |
| |
| if (err instanceof EntryProcessorException) |
| throw (EntryProcessorException)err; |
| |
| throw new EntryProcessorException(err); |
| } |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void writeExternal(ObjectOutput out) throws IOException { |
| out.writeObject(res); |
| |
| out.writeObject(err); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| res = (T)in.readObject(); |
| |
| err = (Exception)in.readObject(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(CacheInvokeResult.class, this); |
| } |
| } |