{"action":"created","comment":{"url":"https://api.github.com/repos/druid-io/druid/pulls/comments/31084816","id":31084816,"diff_hunk":"@@ -0,0 +1,124 @@\n+/*\n+ * Licensed to Metamarkets Group Inc. (Metamarkets) under one\n+ * or more contributor license agreements.  See the NOTICE file\n+ * distributed with this work for additional information\n+ * regarding copyright ownership.  Metamarkets licenses this file\n+ * to you under the Apache License, Version 2.0 (the\n+ * \"License\"); you may not use this file except in compliance\n+ * with the License.  You may obtain a copy of the License at\n+ *\n+ *   http://www.apache.org/licenses/LICENSE-2.0\n+ *\n+ * Unless required by applicable law or agreed to in writing,\n+ * software distributed under the License is distributed on an\n+ * \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n+ * KIND, either express or implied.  See the License for the\n+ * specific language governing permissions and limitations\n+ * under the License.\n+ */\n+\n+package io.druid.query.extraction;\n+\n+import com.fasterxml.jackson.annotation.JsonCreator;\n+import com.fasterxml.jackson.annotation.JsonProperty;\n+import com.google.common.base.Function;\n+import com.google.common.base.Preconditions;\n+import com.google.common.base.Strings;\n+import com.google.common.base.Throwables;\n+import com.metamx.common.StringUtils;\n+\n+import javax.annotation.Nullable;\n+import javax.validation.constraints.NotNull;\n+import java.io.ByteArrayOutputStream;\n+import java.io.IOException;\n+import java.util.Map;\n+\n+/**\n+ *\n+ */\n+public class ExplicitDimRenameFn extends FunctionalExtraction\n+{\n+  private final Map<String, String> lookup;\n+\n+  @JsonCreator\n+  public ExplicitDimRenameFn(\n+      @NotNull @JsonProperty(\"lookup\")\n+      final Map<String, String> lookup,\n+      @JsonProperty(\"retainMissingValue\")\n+      final boolean retainMissingValue,\n+      @Nullable @JsonProperty(\"replaceMissingValueWith\")\n+      final String replaceMissingValueWith,\n+      @JsonProperty(\"injective\")\n+      final boolean injective\n+  )\n+  {\n+    super(\n+        new Function<String, String>()\n+        {\n+          @Nullable\n+          @Override\n+          public String apply(@Nullable String input)\n+          {\n+            if (Strings.isNullOrEmpty(input)) {\n+              return null;\n+            }\n+            return lookup.get(input);\n+          }\n+        },\n+        retainMissingValue,\n+        replaceMissingValueWith,\n+        injective\n+    );\n+    this.lookup = Preconditions.checkNotNull(lookup, \"lookup\");\n+  }\n+\n+  private static final byte CACHE_TYPE_ID = 0x5;\n+\n+  @JsonProperty\n+  public Map<String, String> getLookup()\n+  {\n+    return lookup;\n+  }\n+\n+  @Override\n+  @JsonProperty\n+  public boolean isRetainMissingValue() {return super.isRetainMissingValue();}","path":"processing/src/main/java/io/druid/query/extraction/ExplicitDimRenameFn.java","position":null,"original_position":85,"commit_id":"f59c2e95e74ff05660eb57040b689802b71282fc","original_commit_id":"ef9eb71b317c4335f0f1438abe393cf465724e06","user":{"login":"drcrallen","id":8213081,"avatar_url":"https://avatars.githubusercontent.com/u/8213081?v=3","gravatar_id":"","url":"https://api.github.com/users/drcrallen","html_url":"https://github.com/drcrallen","followers_url":"https://api.github.com/users/drcrallen/followers","following_url":"https://api.github.com/users/drcrallen/following{/other_user}","gists_url":"https://api.github.com/users/drcrallen/gists{/gist_id}","starred_url":"https://api.github.com/users/drcrallen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/drcrallen/subscriptions","organizations_url":"https://api.github.com/users/drcrallen/orgs","repos_url":"https://api.github.com/users/drcrallen/repos","events_url":"https://api.github.com/users/drcrallen/events{/privacy}","received_events_url":"https://api.github.com/users/drcrallen/received_events","type":"User","site_admin":false},"body":"`FunctionalExtraction` has no json information, and I'd like to not have an incomplete json handling in the class. Since the class is never intended to be serialized directly (without an extending class) I don't think having partial json implementation makes it cleaner.","created_at":"2015-05-26T22:05:59Z","updated_at":"2015-05-26T22:05:59Z","html_url":"https://github.com/druid-io/druid/pull/1370#discussion_r31084816","pull_request_url":"https://api.github.com/repos/druid-io/druid/pulls/1370","_links":{"self":{"href":"https://api.github.com/repos/druid-io/druid/pulls/comments/31084816"},"html":{"href":"https://github.com/druid-io/druid/pull/1370#discussion_r31084816"},"pull_request":{"href":"https://api.github.com/repos/druid-io/druid/pulls/1370"}}},"pull_request":{"url":"https://api.github.com/repos/druid-io/druid/pulls/1370","id":35538198,"html_url":"https://github.com/druid-io/druid/pull/1370","diff_url":"https://github.com/druid-io/druid/pull/1370.diff","patch_url":"https://github.com/druid-io/druid/pull/1370.patch","issue_url":"https://api.github.com/repos/druid-io/druid/issues/1370","number":1370,"state":"open","locked":false,"title":"Add optimizations for ExtractionFn by enabling MANY_TO_ONE vs ONE_TO_ONE codepaths","user":{"login":"drcrallen","id":8213081,"avatar_url":"https://avatars.githubusercontent.com/u/8213081?v=3","gravatar_id":"","url":"https://api.github.com/users/drcrallen","html_url":"https://github.com/drcrallen","followers_url":"https://api.github.com/users/drcrallen/followers","following_url":"https://api.github.com/users/drcrallen/following{/other_user}","gists_url":"https://api.github.com/users/drcrallen/gists{/gist_id}","starred_url":"https://api.github.com/users/drcrallen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/drcrallen/subscriptions","organizations_url":"https://api.github.com/users/drcrallen/orgs","repos_url":"https://api.github.com/users/drcrallen/repos","events_url":"https://api.github.com/users/drcrallen/events{/privacy}","received_events_url":"https://api.github.com/users/drcrallen/received_events","type":"User","site_admin":false},"body":"* Also adds ExplicitDimRenameFn which takes in an explicit mapping of renames\r\n\r\n\r\nThis is a fork of the improvements in the QTL branch to try and make them smaller overall patches","created_at":"2015-05-15T18:26:59Z","updated_at":"2015-05-26T22:05:59Z","closed_at":null,"merged_at":null,"merge_commit_sha":"215a7f5363b70f7ede5a2ee6733bf20839ffc7ea","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/druid-io/druid/pulls/1370/commits","review_comments_url":"https://api.github.com/repos/druid-io/druid/pulls/1370/comments","review_comment_url":"https://api.github.com/repos/druid-io/druid/pulls/comments{/number}","comments_url":"https://api.github.com/repos/druid-io/druid/issues/1370/comments","statuses_url":"https://api.github.com/repos/druid-io/druid/statuses/f59c2e95e74ff05660eb57040b689802b71282fc","head":{"label":"metamx:dimExtractionOptimizations","ref":"dimExtractionOptimizations","sha":"f59c2e95e74ff05660eb57040b689802b71282fc","user":{"login":"metamx","id":299329,"avatar_url":"https://avatars.githubusercontent.com/u/299329?v=3","gravatar_id":"","url":"https://api.github.com/users/metamx","html_url":"https://github.com/metamx","followers_url":"https://api.github.com/users/metamx/followers","following_url":"https://api.github.com/users/metamx/following{/other_user}","gists_url":"https://api.github.com/users/metamx/gists{/gist_id}","starred_url":"https://api.github.com/users/metamx/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/metamx/subscriptions","organizations_url":"https://api.github.com/users/metamx/orgs","repos_url":"https://api.github.com/users/metamx/repos","events_url":"https://api.github.com/users/metamx/events{/privacy}","received_events_url":"https://api.github.com/users/metamx/received_events","type":"Organization","site_admin":false},"repo":{"id":28248872,"name":"druid","full_name":"metamx/druid","owner":{"login":"metamx","id":299329,"avatar_url":"https://avatars.githubusercontent.com/u/299329?v=3","gravatar_id":"","url":"https://api.github.com/users/metamx","html_url":"https://github.com/metamx","followers_url":"https://api.github.com/users/metamx/followers","following_url":"https://api.github.com/users/metamx/following{/other_user}","gists_url":"https://api.github.com/users/metamx/gists{/gist_id}","starred_url":"https://api.github.com/users/metamx/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/metamx/subscriptions","organizations_url":"https://api.github.com/users/metamx/orgs","repos_url":"https://api.github.com/users/metamx/repos","events_url":"https://api.github.com/users/metamx/events{/privacy}","received_events_url":"https://api.github.com/users/metamx/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/metamx/druid","description":"Real²time 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