org.gradle.api.internalivyservice.resolveengine.graph.builder.IncompatibleVariantsSelectionMessageBuilder Maven / Gradle / Ivy
/*
* 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.ImmutableSet;
import com.google.common.collect.Lists;
import org.gradle.api.attributes.Attribute;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
class IncompatibleVariantsSelectionMessageBuilder {
static String buildMessage(ComponentState selected, Set incompatibleNodes) {
StringBuilder sb = new StringBuilder("Multiple incompatible variants of ")
.append(selected.getId())
.append(" were selected:\n");
ArrayList sorted = Lists.newArrayList(incompatibleNodes);
sorted.sort(Comparator.comparing(NodeState::getNameWithVariant));
for (NodeState node : sorted) {
sb.append(" - Variant ").append(node.getNameWithVariant()).append(" has attributes ");
appendAttributes(sb, node.getMetadata().getAttributes());
sb.append("\n");
}
return sb.toString();
}
private static void appendAttributes(StringBuilder sb, ImmutableAttributes attributes) {
ImmutableSet> keySet = attributes.keySet();
List> sorted = Lists.newArrayList(keySet);
sorted.sort(Comparator.comparing(Attribute::getName));
boolean space = false;
sb.append("{");
for (Attribute attribute : sorted) {
if (space) {
sb.append(", ");
}
sb.append(attribute.getName()).append("=").append(attributes.getAttribute(attribute));
space = true;
}
sb.append("}");
}
}