| /* |
| * 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.internal.cache.tier.sockets.command; |
| |
| import org.apache.geode.cache.execute.Function; |
| import org.apache.geode.cache.execute.FunctionService; |
| import org.apache.geode.internal.cache.tier.Command; |
| import org.apache.geode.internal.cache.tier.MessageType; |
| import org.apache.geode.internal.cache.tier.sockets.BaseCommand; |
| import org.apache.geode.internal.cache.tier.sockets.Message; |
| import org.apache.geode.internal.cache.tier.sockets.ServerConnection; |
| import org.apache.geode.internal.i18n.LocalizedStrings; |
| |
| import java.io.IOException; |
| |
| public class GetFunctionAttribute extends BaseCommand { |
| |
| private final static GetFunctionAttribute singleton = new GetFunctionAttribute(); |
| |
| public static Command getCommand() { |
| return singleton; |
| } |
| |
| @Override |
| public void cmdExecute(Message clientMessage, ServerConnection serverConnection, long start) |
| throws IOException { |
| serverConnection.setAsTrue(REQUIRES_RESPONSE); |
| |
| if (!ServerConnection.allowInternalMessagesWithoutCredentials) { |
| serverConnection.getAuthzRequest(); |
| } |
| |
| String functionId = clientMessage.getPart(0).getString(); |
| if (functionId == null) { |
| String message = |
| LocalizedStrings.GetFunctionAttribute_THE_INPUT_0_FOR_GET_FUNCTION_ATTRIBUTE_REQUEST_IS_NULL |
| .toLocalizedString("functionId"); |
| logger.warn("{}: {}", serverConnection.getName(), message); |
| sendError(clientMessage, message, serverConnection); |
| return; |
| } |
| |
| Function function = FunctionService.getFunction(functionId); |
| if (function == null) { |
| String message = null; |
| message = |
| LocalizedStrings.GetFunctionAttribute_THE_FUNCTION_IS_NOT_REGISTERED_FOR_FUNCTION_ID_0 |
| .toLocalizedString(functionId); |
| logger.warn("{}: {}", serverConnection.getName(), message); |
| sendError(clientMessage, message, serverConnection); |
| return; |
| } |
| |
| byte[] functionAttributes = new byte[3]; |
| functionAttributes[0] = (byte) (function.hasResult() ? 1 : 0); |
| functionAttributes[1] = (byte) (function.isHA() ? 1 : 0); |
| functionAttributes[2] = (byte) (function.optimizeForWrite() ? 1 : 0); |
| writeResponseWithFunctionAttribute(functionAttributes, clientMessage, serverConnection); |
| } |
| |
| private void sendError(Message msg, String message, ServerConnection servConn) |
| throws IOException { |
| synchronized (msg) { |
| writeErrorResponse(msg, MessageType.REQUESTDATAERROR, message, servConn); |
| servConn.setAsTrue(RESPONDED); |
| } |
| } |
| |
| } |