org.sonar.java.checks.AvoidHighFrameratesOnMobileCheck Maven / Gradle / Ivy
/*
* SonarQube Java
* Copyright (C) 2012-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
package org.sonar.java.checks;
import java.util.List;
import java.util.Map;
import org.sonar.check.Rule;
import org.sonar.java.model.ExpressionUtils;
import org.sonar.plugins.java.api.IssuableSubscriptionVisitor;
import org.sonar.plugins.java.api.semantic.MethodMatchers;
import org.sonar.plugins.java.api.tree.MethodInvocationTree;
import org.sonar.plugins.java.api.tree.Tree;
@Rule(key = "S6898")
public class AvoidHighFrameratesOnMobileCheck extends IssuableSubscriptionVisitor {
private static final int DEFAULT_THRESHOLD = 60;
private static final Map FRAME_RATE_SETTERS = Map.of(
MethodMatchers.create().ofTypes("android.view.Surface").names("setFrameRate").withAnyParameters().build(), 0,
MethodMatchers.create().ofTypes("android.view.SurfaceControl").names("setFrameRate").withAnyParameters().build(), 1);
@Override
public List nodesToVisit() {
return List.of(Tree.Kind.METHOD_INVOCATION);
}
@Override
public void visitNode(Tree tree) {
var mit = (MethodInvocationTree) tree;
FRAME_RATE_SETTERS.entrySet().stream().filter(e -> e.getKey().matches(mit)).findFirst().ifPresent(e -> {
var frameRateArg = mit.arguments().get(e.getValue());
var frameRateArgVal = ExpressionUtils.resolveAsConstant(frameRateArg);
if (frameRateArgVal instanceof Number frameRateNumber && frameRateNumber.intValue() > DEFAULT_THRESHOLD) {
reportIssue(frameRateArg, "Avoid setting high frame rates higher than " + DEFAULT_THRESHOLD + " on mobile devices.");
}
});
}
}
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