org.gradle.internal.component.AmbiguousConfigurationSelectionException Maven / Gradle / Ivy

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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.internal.component;

import com.google.common.collect.Lists;
import org.gradle.api.attributes.Attribute;
import org.gradle.api.internal.attributes.AttributeContainerInternal;
import org.gradle.api.internal.attributes.AttributeValue;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import org.gradle.internal.Cast;
import org.gradle.internal.component.model.AttributeMatcher;
import org.gradle.internal.component.model.ComponentResolveMetadata;
import org.gradle.internal.component.model.ConfigurationMetadata;
import org.gradle.internal.logging.text.TreeFormatter;

import java.util.List;
import java.util.Map;
import java.util.TreeMap;

public class AmbiguousConfigurationSelectionException extends RuntimeException {
    public AmbiguousConfigurationSelectionException(AttributeContainerInternal fromConfigurationAttributes,
                                                    AttributeMatcher attributeMatcher,
                                                    List matches,
                                                    ComponentResolveMetadata targetComponent,
                                                    boolean variantAware) {
        super(generateMessage(fromConfigurationAttributes, attributeMatcher, matches, targetComponent, variantAware));
    }

    private static String generateMessage(AttributeContainerInternal fromConfigurationAttributes, AttributeMatcher attributeMatcher, List matches, ComponentResolveMetadata targetComponent, boolean variantAware) {
        Map ambiguousConfigurations = new TreeMap();
        for (ConfigurationMetadata match : matches) {
            ambiguousConfigurations.put(match.getName(), match);
        }
        TreeFormatter formatter = new TreeFormatter();
        formatter.node("Cannot choose between the following " + (variantAware ? "variants" : "configurations") + " of ");
        formatter.append(targetComponent.getId().getDisplayName());
        formatter.startChildren();
        for (String configuration : ambiguousConfigurations.keySet()) {
            formatter.node(configuration);
        }
        formatter.endChildren();
        formatter.node("All of them match the consumer attributes");
        // We're sorting the names of the configurations and later attributes
        // to make sure the output is consistently the same between invocations
        formatter.startChildren();
        for (ConfigurationMetadata ambiguousConf : ambiguousConfigurations.values()) {
            formatConfiguration(formatter, targetComponent, fromConfigurationAttributes, attributeMatcher, ambiguousConf, variantAware, true);
        }
        formatter.endChildren();
        return formatter.toString();
    }

    static void formatConfiguration(TreeFormatter formatter, ComponentResolveMetadata targetComponent, AttributeContainerInternal consumerAttributes, AttributeMatcher attributeMatcher, ConfigurationMetadata configuration, boolean variantAware, boolean ambiguous) {
        AttributeContainerInternal producerAttributes = configuration.getAttributes();
        if (variantAware) {
            formatter.node("Variant '");
        } else {
            formatter.node("Configuration '");
        }
        formatter.append(configuration.getName());
        formatter.append("'");
        if (variantAware) {
            formatter.append(" " + CapabilitiesSupport.prettifyCapabilities(targetComponent, configuration.getCapabilities().getCapabilities()));
        }
        if (ambiguous) {
            formatAttributeMatchesForAmbiguity(formatter, consumerAttributes.asImmutable(), attributeMatcher, producerAttributes.asImmutable());
        } else {
            formatAttributeMatchesForIncompatibility(formatter, consumerAttributes.asImmutable(), attributeMatcher, producerAttributes.asImmutable());
        }
    }

    static void formatAttributeMatchesForIncompatibility(TreeFormatter formatter, ImmutableAttributes immutableConsumer, AttributeMatcher attributeMatcher, ImmutableAttributes immutableProducer) {
        Map> allAttributes = collectAttributes(immutableConsumer, immutableProducer);
        formatter.startChildren();
        List incompatibleValues = Lists.newArrayListWithExpectedSize(allAttributes.size());
        List otherValues = Lists.newArrayListWithExpectedSize(allAttributes.size());
        for (Attribute attribute : allAttributes.values()) {
            Attribute