| /* |
| * 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.platform; |
| |
| import java.io.Externalizable; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.math.BigDecimal; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.compute.ComputeJob; |
| import org.apache.ignite.compute.ComputeJobAdapter; |
| import org.apache.ignite.compute.ComputeJobResult; |
| import org.apache.ignite.compute.ComputeTaskAdapter; |
| import org.apache.ignite.internal.util.typedef.F; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** */ |
| @SuppressWarnings({"ConstantConditions"}) |
| public class PlatformComputeDecimalTask extends ComputeTaskAdapter<Object[], BigDecimal> { |
| /** {@inheritDoc} */ |
| @NotNull @Override public Map<? extends ComputeJob, ClusterNode> map(List<ClusterNode> subgrid, @Nullable Object[] arg) { |
| return Collections.singletonMap(new DecimalJob((BigDecimal)arg[0], (String)arg[1]), F.first(subgrid)); |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public BigDecimal reduce(List<ComputeJobResult> results) { |
| ComputeJobResult res = results.get(0); |
| |
| if (res.getException() != null) |
| throw res.getException(); |
| else |
| return results.get(0).getData(); |
| } |
| |
| /** |
| * Job. |
| */ |
| private static class DecimalJob extends ComputeJobAdapter implements Externalizable { |
| /** Value. */ |
| private BigDecimal val; |
| |
| /** Value as string. */ |
| private String valStr; |
| |
| /** |
| * Constructor. |
| */ |
| public DecimalJob() { |
| // No-op. |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param val Value. |
| * @param valStr Value as string. |
| */ |
| private DecimalJob(BigDecimal val, String valStr) { |
| this.val = val; |
| this.valStr = valStr; |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Object execute() { |
| BigDecimal exp = new BigDecimal(valStr.replace(',', '.')); |
| |
| if (val != null && !exp.equals(val)) |
| throw new IgniteException("Actual=" + val); |
| |
| return exp; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void writeExternal(ObjectOutput out) throws IOException { |
| out.writeObject(val); |
| out.writeObject(valStr); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| val = (BigDecimal)in.readObject(); |
| valStr = (String)in.readObject(); |
| } |
| } |
| } |