| /* |
| * 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.geode.experimental.driver; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import org.apache.geode.internal.protocol.protobuf.v1.BasicTypes; |
| import org.apache.geode.internal.protocol.protobuf.v1.ClientProtocol; |
| import org.apache.geode.internal.protocol.protobuf.v1.FunctionAPI; |
| |
| public class ProtobufFunction<T> implements Function<T> { |
| private final String functionId; |
| private final ProtobufChannel channel; |
| private final ValueEncoder valueEncoder; |
| |
| public ProtobufFunction(String functionId, ProtobufChannel channel, ValueEncoder valueEncoder) { |
| this.functionId = functionId; |
| this.channel = channel; |
| this.valueEncoder = valueEncoder; |
| } |
| |
| @Override |
| public List<T> executeOnRegion(Object arguments, String regionName, Object... keyFilters) |
| throws IOException { |
| List<BasicTypes.EncodedValue> encodedFilters = Arrays.stream(keyFilters) |
| .map(valueEncoder::encodeValue).collect(Collectors.toList()); |
| ClientProtocol.Message request = ClientProtocol.Message.newBuilder() |
| .setExecuteFunctionOnRegionRequest(FunctionAPI.ExecuteFunctionOnRegionRequest.newBuilder() |
| .setRegion(regionName).addAllKeyFilter(encodedFilters).setFunctionID(functionId)) |
| .build(); |
| final FunctionAPI.ExecuteFunctionOnRegionResponse response = channel |
| .sendRequest(request, |
| ClientProtocol.Message.MessageTypeCase.EXECUTEFUNCTIONONREGIONRESPONSE) |
| .getExecuteFunctionOnRegionResponse(); |
| return response.getResultsList().stream().map(valueEncoder::<T>decodeValue) |
| .collect(Collectors.toList()); |
| } |
| |
| @Override |
| public List<T> executeOnMember(Object arguments, String... members) throws IOException { |
| final List<String> stringMembers = Arrays.asList(members); |
| ClientProtocol.Message request = ClientProtocol.Message.newBuilder() |
| .setExecuteFunctionOnMemberRequest(FunctionAPI.ExecuteFunctionOnMemberRequest.newBuilder() |
| .addAllMemberName(stringMembers).setFunctionID(functionId)) |
| .build(); |
| final FunctionAPI.ExecuteFunctionOnMemberResponse response = channel |
| .sendRequest(request, |
| ClientProtocol.Message.MessageTypeCase.EXECUTEFUNCTIONONMEMBERRESPONSE) |
| .getExecuteFunctionOnMemberResponse(); |
| return response.getResultsList().stream().map(valueEncoder::<T>decodeValue) |
| .collect(Collectors.toList()); |
| } |
| |
| @Override |
| public List<T> executeOnGroup(Object arguments, String... groups) throws IOException { |
| final List<String> stringGroups = Arrays.asList(groups); |
| ClientProtocol.Message request = ClientProtocol.Message.newBuilder() |
| .setExecuteFunctionOnGroupRequest(FunctionAPI.ExecuteFunctionOnGroupRequest.newBuilder() |
| .addAllGroupName(stringGroups).setFunctionID(functionId)) |
| .build(); |
| final FunctionAPI.ExecuteFunctionOnGroupResponse response = channel |
| .sendRequest(request, ClientProtocol.Message.MessageTypeCase.EXECUTEFUNCTIONONGROUPRESPONSE) |
| .getExecuteFunctionOnGroupResponse(); |
| return response.getResultsList().stream().map(valueEncoder::<T>decodeValue) |
| .collect(Collectors.toList()); |
| } |
| } |