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 com.google.common.collect.Maps;
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.AttributeDescriber;
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.exceptions.StyledException;
import org.gradle.internal.logging.text.StyledTextOutput;
import org.gradle.internal.logging.text.TreeFormatter;

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

public class AmbiguousConfigurationSelectionException extends StyledException {
    public AmbiguousConfigurationSelectionException(AttributeDescriber describer, AttributeContainerInternal fromConfigurationAttributes,
                                                    AttributeMatcher attributeMatcher,
                                                    List matches,
                                                    ComponentResolveMetadata targetComponent,
                                                    boolean variantAware,
                                                    Set discarded) {
        super(generateMessage(new StyledDescriber(describer), fromConfigurationAttributes, attributeMatcher, matches, discarded, targetComponent, variantAware));
    }

    private static String generateMessage(AttributeDescriber describer, AttributeContainerInternal fromConfigurationAttributes, AttributeMatcher attributeMatcher, List matches, Set discarded, ComponentResolveMetadata targetComponent, boolean variantAware) {
        Map ambiguousConfigurations = new TreeMap<>();
        for (ConfigurationMetadata match : matches) {
            ambiguousConfigurations.put(match.getName(), match);
        }
        TreeFormatter formatter = new TreeFormatter();
        String configTerm = variantAware ? "variants" : "configurations";
        if (fromConfigurationAttributes.isEmpty()) {
            formatter.node("Cannot choose between the following " + configTerm + " of ");
        } else {
            formatter.node("The consumer was configured to find " + describer.describeAttributeSet(fromConfigurationAttributes.asMap()) + ". However we cannot choose between the following " + configTerm + " of ");
        }
        formatter.append(style(StyledTextOutput.Style.Info, 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, describer);
        }
        formatter.endChildren();
        if (!discarded.isEmpty()) {
            formatter.node("The following " + configTerm + " were also considered but didn't match the requested attributes:");
            formatter.startChildren();
            discarded.stream()
                .sorted(Comparator.comparing(ConfigurationMetadata::getName))
                .forEach(discardedConf -> formatConfiguration(formatter, targetComponent, fromConfigurationAttributes, attributeMatcher, discardedConf, variantAware, false, describer));
            formatter.endChildren();
        }

        return formatter.toString();
    }

    static void formatConfiguration(TreeFormatter formatter,
                                    ComponentResolveMetadata targetComponent,
                                    AttributeContainerInternal consumerAttributes,
                                    AttributeMatcher attributeMatcher,
                                    ConfigurationMetadata configuration,
                                    boolean variantAware,
                                    boolean ambiguous,
                                    AttributeDescriber describer) {
        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(), describer);
        } else {
            formatAttributeMatchesForIncompatibility(formatter, consumerAttributes.asImmutable(), attributeMatcher, producerAttributes.asImmutable(), describer);
        }
    }

    static void formatAttributeMatchesForIncompatibility(TreeFormatter formatter,
                                                         ImmutableAttributes immutableConsumer,
                                                         AttributeMatcher attributeMatcher,
                                                         ImmutableAttributes immutableProducer,
                                                         AttributeDescriber describer) {
        Map> allAttributes = collectAttributes(immutableConsumer, immutableProducer);
        List otherValues = Lists.newArrayListWithExpectedSize(allAttributes.size());
        Map, ?> compatibleAttrs = Maps.newLinkedHashMap();
        Map, ?> incompatibleAttrs = Maps.newLinkedHashMap();
        Map, ?> incompatibleConsumerAttrs = Maps.newLinkedHashMap();
        for (Attribute attribute : allAttributes.values()) {
            Attribute