/
DefaultCompatibilityRuleChain.java
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/
DefaultCompatibilityRuleChain.java
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/*
* Copyright 2016 the original author or authors.
*
* 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.gradle.api.internal.attributes;
import com.google.common.collect.Lists;
import org.gradle.api.Action;
import org.gradle.api.ActionConfiguration;
import org.gradle.api.attributes.AttributeCompatibilityRule;
import org.gradle.api.attributes.CompatibilityCheckDetails;
import org.gradle.api.attributes.CompatibilityRuleChain;
import org.gradle.internal.action.DefaultConfigurableRule;
import org.gradle.internal.action.DefaultConfigurableRules;
import org.gradle.internal.action.InstantiatingAction;
import org.gradle.internal.isolation.IsolatableFactory;
import org.gradle.internal.reflect.Instantiator;
import org.gradle.model.internal.type.ModelType;
import java.util.Comparator;
import java.util.List;
public class DefaultCompatibilityRuleChain<T> implements CompatibilityRuleChain<T>, CompatibilityRule<T> {
private final List<Action<? super CompatibilityCheckDetails<T>>> rules = Lists.newArrayList();
private final Instantiator instantiator;
private final IsolatableFactory isolatableFactory;
public DefaultCompatibilityRuleChain(Instantiator instantiator, IsolatableFactory isolatableFactory) {
this.instantiator = instantiator;
this.isolatableFactory = isolatableFactory;
}
@Override
public void ordered(Comparator<? super T> comparator) {
Action<? super CompatibilityCheckDetails<T>> rule = AttributeMatchingRules.orderedCompatibility(comparator, false);
rules.add(rule);
}
@Override
public void reverseOrdered(Comparator<? super T> comparator) {
Action<? super CompatibilityCheckDetails<T>> rule = AttributeMatchingRules.orderedCompatibility(comparator, true);
rules.add(rule);
}
@Override
public void add(Class<? extends AttributeCompatibilityRule<T>> rule, Action<? super ActionConfiguration> configureAction) {
rules.add(new InstantiatingAction<>(DefaultConfigurableRules.of(DefaultConfigurableRule.of(rule, configureAction, isolatableFactory)),
instantiator, new ExceptionHandler<>(rule)));
}
@Override
public void add(final Class<? extends AttributeCompatibilityRule<T>> rule) {
rules.add(new InstantiatingAction<>(DefaultConfigurableRules.of(DefaultConfigurableRule.of(rule)),
instantiator, new ExceptionHandler<>(rule)));
}
@Override
public void execute(CompatibilityCheckResult<T> result) {
for (Action<? super CompatibilityCheckDetails<T>> rule : rules) {
rule.execute(result);
if (result.hasResult()) {
return;
}
}
}
@Override
public boolean doesSomething() {
return !rules.isEmpty();
}
private static class ExceptionHandler<T> implements InstantiatingAction.ExceptionHandler<CompatibilityCheckDetails<T>> {
private final Class<? extends AttributeCompatibilityRule<T>> rule;
private ExceptionHandler(Class<? extends AttributeCompatibilityRule<T>> rule) {
this.rule = rule;
}
@Override
public void handleException(CompatibilityCheckDetails<T> details, Throwable throwable) {
throw new AttributeMatchException(String.format("Could not determine whether value %s is compatible with value %s using %s.", details.getProducerValue(), details.getConsumerValue(), ModelType.of(rule).getDisplayName()), throwable);
}
}
}