-
Notifications
You must be signed in to change notification settings - Fork 3.6k
/
WithReplacementLoader.java
48 lines (43 loc) · 1.99 KB
/
WithReplacementLoader.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.cassandra.config;
import java.util.Map;
import org.yaml.snakeyaml.introspector.Property;
public class WithReplacementLoader implements Loader
{
private final Loader delegate;
public WithReplacementLoader(Loader delegate)
{
this.delegate = delegate;
}
@Override
public Map<String, Property> getProperties(Class<?> root)
{
Map<String, Property> properties = delegate.getProperties(root);
// only handling top-level replacements for now, previous logic was only top level so not a regression
for (Replacement r : Replacements.getReplacements(root))
{
Property latest = properties.get(r.newName);
assert latest != null : "Unable to find replacement new name: " + r.newName;
Property conflict = properties.put(r.oldName, r.toProperty(latest));
// some configs kept the same name, but changed the type, if this is detected then rely on the replaced property
assert conflict == null || r.oldName.equals(r.newName) : String.format("New property %s attempted to replace %s, but this property already exists", latest.getName(), conflict.getName());
}
return properties;
}
}