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https://issues.apache.org/jira/browse/DRILL-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17177091#comment-17177091
]
ASF GitHub Bot commented on DRILL-7745:
---------------------------------------
dbw9580 commented on a change in pull request #2084:
URL: https://github.com/apache/drill/pull/2084#discussion_r470025016
##########
File path:
contrib/storage-ipfs/src/main/java/org/apache/drill/exec/store/ipfs/IPFSCompat.java
##########
@@ -0,0 +1,284 @@
+/*
+ * 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 io.ipfs.api.IPFS;
+import io.ipfs.api.JSONParser;
+import io.ipfs.multihash.Multihash;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+/**
+ * Compatibility fixes for java-ipfs-http-client library
+ *
+ * Supports IPFS up to version v0.4.23, due to new restrictions enforcing all
API calls to be made with POST method.
+ * Upstream issue tracker:
https://github.com/ipfs-shipyard/java-ipfs-http-client/issues/157
+ */
+public class IPFSCompat {
+ public final String host;
+ public final int port;
+ private final String version;
+ public final String protocol;
+ public final int readTimeout;
+ public static final int DEFAULT_READ_TIMEOUT = 0;
+
+ public final DHT dht = new DHT();
+ public final Name name = new Name();
+
+ public IPFSCompat(IPFS ipfs) {
+ this(ipfs.host, ipfs.port);
+ }
+
+ public IPFSCompat(String host, int port) {
+ this(host, port, "/api/v0/", false, DEFAULT_READ_TIMEOUT);
+ }
+
+ public IPFSCompat(String host, int port, String version, boolean ssl, int
readTimeout) {
+ this.host = host;
+ this.port = port;
+
+ if(ssl) {
+ this.protocol = "https";
+ } else {
+ this.protocol = "http";
+ }
+
+ this.version = version;
+ this.readTimeout = readTimeout;
+ }
+
+ /**
+ * Resolve names to IPFS CIDs.
+ * See <a
href="https://docs.ipfs.io/reference/http/api/#api-v0-resolve";>resolve in IPFS
doc</a>.
+ * @param scheme the scheme of the name to resolve, usually IPFS or IPNS
+ * @param path the path to the object
+ * @param recursive whether recursively resolve names until it is a IPFS CID
+ * @return a Map of JSON object, with the result as the value of key "Path"
+ */
+ public Map resolve(String scheme, String path, boolean recursive) {
+ AtomicReference<Map> ret = new AtomicReference<>();
+ getObjectStream(
+ "resolve?arg=/" + scheme+"/"+path +"&r="+recursive,
+ res -> {
+ ret.set((Map) res);
+ return true;
+ },
+ err -> {
+ throw new RuntimeException(err);
+ }
+ );
+ return ret.get();
+ }
+
+ public class DHT {
+ /**
+ * Find internet addresses of a given peer.
+ * See <a
href="https://docs.ipfs.io/reference/http/api/#api-v0-dht-findpeer";>dht/findpeer
in IPFS doc</a>.
+ * @param id the id of the peer to query
+ * @param timeout timeout value in seconds
+ * @param executor executor
+ * @return List of Multiaddresses of the peer
+ */
+ public List<String> findpeerListTimeout(Multihash id, int timeout,
ExecutorService executor) {
+ AtomicReference<List<String>> ret = new AtomicReference<>();
+ timeLimitedExec(
+ "name/resolve?arg=" + id,
+ timeout,
+ res -> {
+ Map peer = (Map) res;
Review comment:
Made some changes in 39bab37.
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> Add storage plugin for IPFS
> ---------------------------
>
> Key: DRILL-7745
> URL: https://issues.apache.org/jira/browse/DRILL-7745
> Project: Apache Drill
> Issue Type: New Feature
> Components: Storage - Other
> Affects Versions: 1.18.0
> Reporter: Bowen Ding
> Assignee: Bowen Ding
> Priority: Major
>
> See introduction here: [https://github.com/bdchain/Minerva]
>
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