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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
81 lines
3.4 KiB
Java
81 lines
3.4 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.tmch;
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import static com.google.common.base.Preconditions.checkArgument;
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import com.google.common.base.Splitter;
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import com.google.common.collect.ImmutableMap;
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import google.registry.model.tmch.ClaimsListShard;
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import org.joda.time.DateTime;
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import java.util.List;
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/**
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* Claims List (MarksDB DNL CSV) Parser.
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*
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* <p>This is a quick and dirty CSV parser made specifically for the DNL CSV format defined in the
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* TMCH specification. It doesn't support any fancy CSV features like quotes.
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*
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* @see "http://tools.ietf.org/html/draft-lozano-tmch-func-spec-08#section-6.1"
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*/
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public class ClaimsListParser {
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/**
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* Converts the lines from the DNL CSV file into a {@link ClaimsListShard} object.
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*
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* <p>Please note that this does <b>not</b> insert the object into the datastore.
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*/
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public static ClaimsListShard parse(List<String> lines) {
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ImmutableMap.Builder<String, String> builder = new ImmutableMap.Builder<>();
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// First line: <version>,<DNL List creation datetime>
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List<String> firstLine = Splitter.on(',').splitToList(lines.get(0));
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checkArgument(firstLine.size() == 2, String.format(
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"Line 1: Expected 2 elements, found %d", firstLine.size()));
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Integer version = Integer.valueOf(firstLine.get(0));
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DateTime creationTime = DateTime.parse(firstLine.get(1));
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checkArgument(version == 1, String.format(
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"Line 1: Expected version 1, found %d", version));
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// Second line contains headers: DNL,lookup-key,insertion-datetime
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List<String> secondLine = Splitter.on(',').splitToList(lines.get(1));
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checkArgument(secondLine.size() == 3, String.format(
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"Line 2: Expected 3 elements, found %d", secondLine.size()));
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checkArgument("DNL".equals(secondLine.get(0)), String.format(
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"Line 2: Expected header \"DNL\", found \"%s\"", secondLine.get(0)));
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checkArgument("lookup-key".equals(secondLine.get(1)), String.format(
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"Line 2: Expected header \"lookup-key\", found \"%s\"", secondLine.get(1)));
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checkArgument("insertion-datetime".equals(secondLine.get(2)), String.format(
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"Line 2: Expected header \"insertion-datetime\", found \"%s\"", secondLine.get(2)));
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// Subsequent lines: <DNL>,<lookup key>,<DNL insertion datetime>
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for (int i = 2; i < lines.size(); i++) {
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List<String> currentLine = Splitter.on(',').splitToList(lines.get(i));
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checkArgument(currentLine.size() == 3, String.format(
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"Line %d: Expected 3 elements, found %d", i + 1, currentLine.size()));
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String label = currentLine.get(0);
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String lookupKey = currentLine.get(1);
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DateTime.parse(currentLine.get(2)); // This is the insertion time, currently unused.
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builder.put(label, lookupKey);
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}
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return ClaimsListShard.create(creationTime, builder.build());
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}
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}
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