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Gradle 6.9.1 API redistribution.
/*
* Copyright 2019 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.artifacts.ivyservice.resolveengine.graph.builder;
import com.google.common.collect.Lists;
import org.gradle.api.internal.artifacts.ResolvedVersionConstraint;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.ExactVersionSelector;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.LatestVersionSelector;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.Version;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionParser;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionSelector;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.selectors.ResolvableSelectorState;
import org.gradle.internal.Cast;
import org.gradle.internal.component.model.IvyArtifactName;
import javax.annotation.Nullable;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.function.Function;
public class ModuleSelectors implements Iterable {
private static final VersionParser VERSION_PARSER = new VersionParser();
private static final Version EMPTY_VERSION = VERSION_PARSER.transform("");
private static > Comparator reverse(
Function keyExtractor) {
return Cast.uncheckedCast(Comparator.comparing(keyExtractor).reversed());
}
private final List selectors = Lists.newArrayList();
private boolean deferSelection;
private boolean forced;
final Comparator selectorComparator;
public ModuleSelectors(Comparator versionComparator) {
Comparator reversed = versionComparator.reversed();
selectorComparator = reverse(ResolvableSelectorState::isProject)
.thenComparing(reverse(ResolvableSelectorState::isFromLock))
.thenComparing(reverse(ModuleSelectors::hasLatestSelector))
.thenComparing(ModuleSelectors::isDynamicSelector)
.thenComparing(ModuleSelectors::requiredVersion, reversed)
.thenComparing(ModuleSelectors::preferredVersion, reversed);
}
public boolean checkDeferSelection() {
if (deferSelection) {
deferSelection = false;
return true;
}
return false;
}
@Override
public Iterator iterator() {
return selectors.iterator();
}
public void add(T selector, boolean deferSelection) {
this.deferSelection = deferSelection;
if (selectors.isEmpty() || forced) {
selectors.add(selector);
} else {
doAdd(selector);
}
forced = forced || selector.isForce();
}
private void doAdd(T selector) {
int size = selectors.size();
if (size == 1) {
doAddWhenListHasOneElement(selector);
} else {
doAddWhenListHasManyElements(selectors, selector, size);
}
}
private void doAddWhenListHasManyElements(List selectors, T selector, int size) {
int insertionPoint = Collections.binarySearch(selectors, selector, selectorComparator);
insertionPoint = advanceToPreserveOrder(selectors, selector, size, insertionPoint);
if (insertionPoint < 0) {
insertionPoint = ~insertionPoint;
}
selectors.add(insertionPoint, selector);
}
private int advanceToPreserveOrder(List selectors, T selector, int size, int insertionPoint) {
while (insertionPoint > 0 && insertionPoint < size && selectorComparator.compare(selectors.get(insertionPoint), selector) == 0) {
insertionPoint++;
}
return insertionPoint;
}
private void doAddWhenListHasOneElement(T selector) {
T first = selectors.get(0);
int c = selectorComparator.compare(first, selector);
if (c <= 0) {
selectors.add(selector);
} else {
selectors.add(0, selector);
}
}
public boolean remove(T selector) {
return selectors.remove(selector);
}
private static boolean isDynamicSelector(ResolvableSelectorState selector) {
return selector.getVersionConstraint() != null && selector.getVersionConstraint().isDynamic();
}
private static boolean hasLatestSelector(ResolvableSelectorState selector) {
return selector.getVersionConstraint() != null
&& hasLatestSelector(selector.getVersionConstraint());
}
private static boolean hasLatestSelector(ResolvedVersionConstraint vc) {
// Latest is only given priority if it's in a require
return hasLatestSelector(vc.getRequiredSelector());
}
private static boolean hasLatestSelector(@Nullable VersionSelector versionSelector) {
return versionSelector instanceof LatestVersionSelector;
}
private static Version requiredVersion(ResolvableSelectorState selector) {
ResolvedVersionConstraint versionConstraint = selector.getVersionConstraint();
if (versionConstraint == null) {
return EMPTY_VERSION;
}
return versionOf(versionConstraint.getRequiredSelector());
}
private static Version preferredVersion(ResolvableSelectorState selector) {
ResolvedVersionConstraint versionConstraint = selector.getVersionConstraint();
if (versionConstraint == null) {
return EMPTY_VERSION;
}
return versionOf(versionConstraint.getPreferredSelector());
}
private static Version versionOf(@Nullable VersionSelector selector) {
if (!(selector instanceof ExactVersionSelector)) {
return EMPTY_VERSION;
}
return VERSION_PARSER.transform(selector.getSelector());
}
public int size() {
return selectors.size();
}
@Nullable
public T first() {
if (size() == 0) {
return null;
}
return selectors.get(0);
}
@Nullable
public IvyArtifactName getFirstDependencyArtifact() {
for (T selector: selectors) {
IvyArtifactName artifact = selector.getFirstDependencyArtifact();
if (artifact != null) {
return artifact;
}
}
return null;
}
}