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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.
65 lines
2.4 KiB
Java
65 lines
2.4 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.model.ofy;
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import static java.util.Arrays.asList;
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import com.google.common.base.Joiner;
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import com.google.common.base.Predicate;
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import com.google.common.collect.FluentIterable;
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import com.googlecode.objectify.Key;
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import com.googlecode.objectify.Objectify;
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import google.registry.model.BackupGroupRoot;
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import org.joda.time.DateTime;
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import java.util.Map;
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/**
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* Exception when trying to write to the datastore with a timestamp that is inconsistent with
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* a partial ordering on transactions that touch the same entities.
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*/
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class TimestampInversionException extends RuntimeException {
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static String getFileAndLine(StackTraceElement callsite) {
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return callsite.getFileName() + ":" + callsite.getLineNumber();
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}
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TimestampInversionException(
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DateTime transactionTime, Map<Key<BackupGroupRoot>, DateTime> problematicRoots) {
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this(transactionTime, "entities rooted under:\n" + problematicRoots);
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}
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TimestampInversionException(DateTime transactionTime, DateTime updateTimestamp) {
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this(transactionTime, String.format("update timestamp (%s)", updateTimestamp));
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}
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private TimestampInversionException(DateTime transactionTime, String problem) {
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super(Joiner.on('\n').join(
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String.format(
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"Timestamp inversion between transaction time (%s) and %s",
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transactionTime,
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problem),
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getFileAndLine(FluentIterable.from(asList(new Exception().getStackTrace()))
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.firstMatch(new Predicate<StackTraceElement>() {
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@Override
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public boolean apply(StackTraceElement element) {
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return !element.getClassName().startsWith(Objectify.class.getPackage().getName())
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&& !element.getClassName().startsWith(Ofy.class.getName());
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}}).get())));
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}
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}
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