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a2fe058865
I'm finally fed up enough with all the nameserver changes we've had to make on our self-allocated domains to improve the command. Now you can simply run: $ nomulus ... update_domain ... -n ns[1-4].foo.bar ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=205282317
80 lines
2.9 KiB
Java
80 lines
2.9 KiB
Java
// Copyright 2018 The Nomulus 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.tools.params;
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import static com.google.common.base.Preconditions.checkArgument;
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import static com.google.common.collect.ImmutableSet.toImmutableSet;
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import static java.lang.Integer.parseInt;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.Splitter;
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import com.google.common.base.Strings;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableSet;
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import com.google.re2j.Matcher;
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import com.google.re2j.Pattern;
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import java.util.Set;
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import java.util.stream.Stream;
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/**
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* Nameservers CLI parameter converter/validator.
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*
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* <p>This accepts a String containing a comma-delimited list of nameservers. Square bracket
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* notation can be used to expand multiple nameservers, e.g. "ns[1-2].googledomains.com" will be
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* expanded to "ns1.googledomains.com,ns2.googledomains.com".
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*/
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public final class NameserversParameter extends ParameterConverterValidator<Set<String>> {
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private static final Pattern FORMAT_BRACKETS = Pattern.compile("^(.+)\\[(\\d+)-(\\d+)\\](.+)$");
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public NameserversParameter() {
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super(
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"Must be a comma-delimited list of nameservers, "
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+ "optionally using square bracket expansion e.g. foo[1-4].bar.baz notation");
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}
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@Override
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public Set<String> convert(String value) {
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if (Strings.isNullOrEmpty(value)) {
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return ImmutableSet.of();
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}
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return Splitter.on(',')
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.trimResults()
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.omitEmptyStrings()
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.splitToList(value)
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.stream()
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.flatMap(NameserversParameter::splitNameservers)
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.collect(toImmutableSet());
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}
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@VisibleForTesting
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static Stream<String> splitNameservers(String ns) {
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Matcher matcher = FORMAT_BRACKETS.matcher(ns);
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if (!matcher.matches()) {
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checkArgument(
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!ns.contains("[") && !ns.contains("]"), "Could not parse square brackets in %s", ns);
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return ImmutableList.of(ns).stream();
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}
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ImmutableList.Builder<String> nameservers = new ImmutableList.Builder<>();
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int start = parseInt(matcher.group(2));
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int end = parseInt(matcher.group(3));
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checkArgument(start <= end, "Number range [%s-%s] is invalid", start, end);
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for (int i = start; i <= end; i++) {
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nameservers.add(String.format("%s%d%s", matcher.group(1), i, matcher.group(4)));
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}
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return nameservers.build().stream();
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}
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}
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