org.gradle.api.internalivyservice.ivyresolve.strategy.LatestVersionSelector Maven / Gradle / Ivy

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/*
 * Copyright 2013 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.ivyresolve.strategy;

import org.gradle.api.artifacts.ComponentMetadata;

public class LatestVersionSelector extends AbstractStringVersionSelector {
    private final String selectorStatus;

    public LatestVersionSelector(String selector) {
        super(selector);
        selectorStatus = selector.substring("latest.".length());
    }

    public String getSelectorStatus() {
        return selectorStatus;
    }

    @Override
    public boolean isDynamic() {
        return true;
    }

    @Override
    public boolean requiresMetadata() {
        return true;
    }

    @Override
    public boolean matchesUniqueVersion() {
        return true;
    }

    @Override
    public boolean accept(String candidate) {
        // the ONLY case where this is called for this selector is from InverseVersionSelector, used to reject candidates
        return true;
    }

    @Override
    public boolean accept(ComponentMetadata candidate) {
        int selectorStatusIndex = candidate.getStatusScheme().indexOf(selectorStatus);
        int candidateStatusIndex = candidate.getStatusScheme().indexOf(candidate.getStatus());
        return selectorStatusIndex >=0 && selectorStatusIndex <= candidateStatusIndex;
    }

    @Override
    public boolean canShortCircuitWhenVersionAlreadyPreselected() {
        return false;
    }
}