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/*
 * Copyright 2018 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.initialization.exception;

import org.gradle.internal.service.scopes.Scope;
import org.gradle.internal.service.scopes.ServiceScope;

import javax.annotation.Nullable;
import java.util.List;

@ServiceScope(Scope.BuildTree.class)
public interface ExceptionAnalyser {
    /**
     * Transforms the given build failure to add context where relevant and to remove unnecessary noise.
     *
     * Note that the argument may be mutated as part of the transformation, for example its causes or stack trace may be changed.
     */
    RuntimeException transform(Throwable failure);

    /**
     * Transforms and combines the given failures into a single build failure.
     *
     * @return null if the list of exceptions is empty.
     */
    @Nullable
    RuntimeException transform(List failures);
}