zydronium/google-nomulus
1
0
Fork 0
mirror of https://github.com/google/nomulus.git synced 2025-05-14 00:17:20 +02:00
Code Issues Projects Releases Packages Wiki Activity

Implement compare_db_backups "main"

Browse source 
Implement toplevel class that reads in two database backups and displays
diffs.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=168592124
This commit is contained in:
mmuller 2017-09-13 14:03:58 -07:00 • committed by jianglai
parent 51298aeabb
commit 07e5741cbb
6 changed files with 345 additions and 61 deletions
Download patch file Download diff file Expand all files Collapse all files

67
java/google/registry/tools/CompareDbBackups.java Normal file
View file

@ -0,0 +1,67 @@
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
//
// Licensed 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 google.registry.tools;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import com.google.common.collect.Sets.SetView;
import java.io.File;
/** Compare two database backups. */
class CompareDbBackups {
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.err.println("Usage: compare_db_backups <directory1> <directory2>");
return;
}
ImmutableSet<ComparableEntity> entities1 =
new RecordAccumulator().readDirectory(new File(args[0])).getComparableEntitySet();
ImmutableSet<ComparableEntity> entities2 =
new RecordAccumulator().readDirectory(new File(args[1])).getComparableEntitySet();
// Calculate the entities added and removed.
SetView<ComparableEntity> added = Sets.difference(entities2, entities1);
SetView<ComparableEntity> removed = Sets.difference(entities1, entities2);
printHeader(
String.format("First backup: %d records", entities1.size()),
String.format("Second backup: %d records", entities2.size()));
if (!removed.isEmpty()) {
printHeader(removed.size() + " records were removed:");
for (ComparableEntity entity : removed) {
System.out.println(entity);
}
}
if (!added.isEmpty()) {
printHeader(added.size() + " records were added:");
for (ComparableEntity entity : added) {
System.out.println(entity);
}
}
}
/** Print out multi-line text in a pretty ASCII header frame. */
private static void printHeader(String... headerLines) {
System.out.println("========================================================================");
for (String line : headerLines) {
System.out.println("| " + line);
}
System.out.println("========================================================================");
}
}