Saber-Factions/src/org/mcteam/factions/gson/VersionExclusionStrategy.java
2011-04-08 15:51:07 +02:00

68 lines
1.9 KiB
Java

/*
* Copyright (C) 2008 Google Inc.
*
* 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 org.mcteam.factions.gson;
import org.mcteam.factions.gson.annotations.Since;
import org.mcteam.factions.gson.annotations.Until;
/**
* This strategy will exclude any files and/or class that are passed the
* {@link #version} value.
*
* @author Joel Leitch
*/
final class VersionExclusionStrategy implements ExclusionStrategy {
private final double version;
public VersionExclusionStrategy(double version) {
Preconditions.checkArgument(version >= 0.0D);
this.version = version;
}
public boolean shouldSkipField(FieldAttributes f) {
return !isValidVersion(f.getAnnotation(Since.class), f.getAnnotation(Until.class));
}
public boolean shouldSkipClass(Class<?> clazz) {
return !isValidVersion(clazz.getAnnotation(Since.class), clazz.getAnnotation(Until.class));
}
private boolean isValidVersion(Since since, Until until) {
return (isValidSince(since) && isValidUntil(until));
}
private boolean isValidSince(Since annotation) {
if (annotation != null) {
double annotationVersion = annotation.value();
if (annotationVersion > version) {
return false;
}
}
return true;
}
private boolean isValidUntil(Until annotation) {
if (annotation != null) {
double annotationVersion = annotation.value();
if (annotationVersion <= version) {
return false;
}
}
return true;
}
}