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From GitBox <...@apache.org>
Subject [GitHub] [drill] dbw9580 commented on a change in pull request #2084: DRILL-7745: Add storage plugin for IPFS
Date Sun, 28 Jun 2020 16:19:17 GMT

dbw9580 commented on a change in pull request #2084:
URL: https://github.com/apache/drill/pull/2084#discussion_r446669668



##########
File path: contrib/storage-ipfs/src/main/java/org/apache/drill/exec/store/ipfs/IPFSStoragePluginConfig.java
##########
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2018-2020 Bowen Ding, Yuedong Xu, Liang Wang
+ *
+ * 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.drill.exec.store.ipfs;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import org.apache.drill.shaded.guava.com.google.common.collect.ImmutableMap;
+import org.apache.drill.common.logical.FormatPluginConfig;
+import org.apache.drill.common.logical.StoragePluginConfigBase;
+
+import java.security.InvalidParameterException;
+import java.util.Map;
+
+@JsonTypeName(IPFSStoragePluginConfig.NAME)
+public class IPFSStoragePluginConfig extends StoragePluginConfigBase{
+    static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(IPFSStoragePluginConfig.class);
+
+    public static final String NAME = "ipfs";
+
+    private final String host;
+    private final int port;
+
+    @JsonProperty("max-nodes-per-leaf")
+    private final int maxNodesPerLeaf;
+
+    //TODO add more specific timeout configs fot different operations in IPFS,
+    // eg. provider resolution, data read, etc.
+    @JsonProperty("ipfs-timeouts")
+    private final Map<IPFSTimeOut, Integer> ipfsTimeouts;
+
+    @JsonIgnore
+    private static final Map<IPFSTimeOut, Integer> ipfsTimeoutDefaults = ImmutableMap.of(
+        IPFSTimeOut.FIND_PROV, 4,
+        IPFSTimeOut.FIND_PEER_INFO, 4,
+        IPFSTimeOut.FETCH_DATA, 6
+    );
+
+    public enum IPFSTimeOut {
+        @JsonProperty("find-provider")
+        FIND_PROV("find-provider"),
+        @JsonProperty("find-peer-info")
+        FIND_PEER_INFO("find-peer-info"),
+        @JsonProperty("fetch-data")
+        FETCH_DATA("fetch-data");
+
+        @JsonProperty("type")
+        private String which;
+        IPFSTimeOut(String which) {
+            this.which = which;
+        }
+
+        @JsonCreator
+        public static IPFSTimeOut of(String which) {
+            switch (which) {
+                case "find-provider":
+                    return FIND_PROV;
+                case "find-peer-info":
+                    return FIND_PEER_INFO;
+                case "fetch-data":
+                    return FETCH_DATA;
+                default:
+                    throw new InvalidParameterException("Unknown key for IPFS timeout config
entry: " + which);
+            }
+        }
+
+        @Override
+        public String toString() {
+            return this.which;
+        }
+    }
+
+    @JsonProperty("groupscan-worker-threads")
+    private final int numWorkerThreads;
+
+    @JsonProperty
+    private final Map<String, FormatPluginConfig> formats;
+
+    @JsonCreator
+    public IPFSStoragePluginConfig(
+        @JsonProperty("host") String host,
+        @JsonProperty("port") int port,
+        @JsonProperty("max-nodes-per-leaf") int maxNodesPerLeaf,
+        @JsonProperty("ipfs-timeouts") Map<IPFSTimeOut, Integer> ipfsTimeouts,
+        @JsonProperty("groupscan-worker-threads") int numWorkerThreads,
+        @JsonProperty("formats") Map<String, FormatPluginConfig> formats) {
+        this.host = host;
+        this.port = port;
+        this.maxNodesPerLeaf = maxNodesPerLeaf > 0 ? maxNodesPerLeaf : 1;
+        //TODO Jackson failed to deserialize the ipfsTimeouts map causing NPE
+        if (ipfsTimeouts != null) {

Review comment:
       Hmm, it seems that this comment was made very early in development, and the issue it
describes no longer exists. I deleted the comment in 282a89d.




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