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https://issues.apache.org/jira/browse/GEODE-3284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16109124#comment-16109124
]
ASF GitHub Bot commented on GEODE-3284:
---------------------------------------
Github user pivotal-amurmann commented on a diff in the pull request:
https://github.com/apache/geode/pull/673#discussion_r130645759
--- Diff:
geode-protobuf/src/main/java/org/apache/geode/protocol/protobuf/operations/GetAvailableServersOperationHandler.java
---
@@ -0,0 +1,98 @@
+/*
+ * 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.protocol.protobuf.operations;
+
+import org.apache.commons.lang.StringUtils;
+import org.apache.geode.cache.Cache;
+import org.apache.geode.cache.client.internal.locator.GetAllServersRequest;
+import
org.apache.geode.cache.client.internal.locator.GetAllServersResponse;
+import org.apache.geode.distributed.ConfigurationProperties;
+import org.apache.geode.distributed.internal.InternalDistributedSystem;
+import org.apache.geode.distributed.internal.ServerLocation;
+import org.apache.geode.distributed.internal.tcpserver.TcpClient;
+import org.apache.geode.internal.admin.remote.DistributionLocatorId;
+import org.apache.geode.protocol.operations.OperationHandler;
+import org.apache.geode.protocol.protobuf.BasicTypes;
+import org.apache.geode.protocol.protobuf.Failure;
+import org.apache.geode.protocol.protobuf.Result;
+import org.apache.geode.protocol.protobuf.ServerAPI;
+import org.apache.geode.protocol.protobuf.Success;
+import org.apache.geode.serialization.SerializationService;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Properties;
+import java.util.StringTokenizer;
+import java.util.stream.Collectors;
+
+public class GetAvailableServersOperationHandler implements
+ OperationHandler<ServerAPI.GetAvailableServersRequest,
ServerAPI.GetAvailableServersResponse> {
+
+ @Override
+ public Result<ServerAPI.GetAvailableServersResponse> process(
+ SerializationService serializationService,
ServerAPI.GetAvailableServersRequest request,
+ Cache cache) {
+
+ InternalDistributedSystem distributedSystem =
+ (InternalDistributedSystem) cache.getDistributedSystem();
+ Properties properties = distributedSystem.getProperties();
+ String locatorsString =
properties.getProperty(ConfigurationProperties.LOCATORS);
+
+ HashSet<DistributionLocatorId> locators = new HashSet();
+ StringTokenizer stringTokenizer = new StringTokenizer(locatorsString,
",");
+ while (stringTokenizer.hasMoreTokens()) {
+ String locator = stringTokenizer.nextToken();
+ if (StringUtils.isNotEmpty(locator)) {
+ locators.add(new DistributionLocatorId(locator));
+ }
+ }
+
+ TcpClient tcpClient = getTcpClient();
+ for (DistributionLocatorId locator : locators) {
+ try {
+ return getGetAvailableServersFromLocator(tcpClient,
locator.getHost());
+ } catch (IOException | ClassNotFoundException e) {
+ // try the next locator
+ }
+ }
+ return Failure
+ .of(BasicTypes.ErrorResponse.newBuilder().setMessage("Unable to
find a locator").build());
+ }
+
+ private Result<ServerAPI.GetAvailableServersResponse>
getGetAvailableServersFromLocator(
+ TcpClient tcpClient, InetSocketAddress address) throws IOException,
ClassNotFoundException {
+ GetAllServersResponse getAllServersResponse = (GetAllServersResponse)
tcpClient
+ .requestToServer(address, new GetAllServersRequest(), 1000, true);
+ Collection<BasicTypes.Server> servers =
+ (Collection<BasicTypes.Server>)
getAllServersResponse.getServers().stream()
+ .map(serverLocation ->
getServerProtobufMessage((ServerLocation) serverLocation))
+ .collect(Collectors.toList());
+ ServerAPI.GetAvailableServersResponse.Builder builder =
+
ServerAPI.GetAvailableServersResponse.newBuilder().addAllServers(servers);
--- End diff --
could we incrementally build this up as part of the stream processing?
> New flow: getAvailableServers
> -----------------------------
>
> Key: GEODE-3284
> URL: https://issues.apache.org/jira/browse/GEODE-3284
> Project: Geode
> Issue Type: Sub-task
> Components: client/server
> Reporter: Brian Baynes
>
> As a Geode client user, I'd like to be able to know all available servers in
> a grid in order to support operations targeting any available server.
> Create op handler for getAvailableServers message, following proto message
> definition.
> Client should be able to complete getAvailableServers, receiving all servers
> available in grid.
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