package org.eclipse.aether.impl;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.collection.CollectRequest;
import org.eclipse.aether.collection.CollectResult;
import org.eclipse.aether.collection.DependencyCollectionException;

Given a collection of direct dependencies, recursively gathers their transitive dependencies and calculates the
dependency graph.
@noimplement
This interface is not intended to be implemented by clients.
@noextend
This interface is not intended to be extended by clients.
@provisional
This type is provisional and can be changed, moved or removed without prior notice./**
 * Given a collection of direct dependencies, recursively gathers their transitive dependencies and calculates the
 * dependency graph.
 * 
 * @noimplement This interface is not intended to be implemented by clients.
 * @noextend This interface is not intended to be extended by clients.
 * @provisional This type is provisional and can be changed, moved or removed without prior notice.
 */
public interface DependencyCollector
{

    
Collects the transitive dependencies of some artifacts and builds a dependency graph. Note that this operation is
only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the
artifact files. The supplied session carries various hooks to customize the dependency graph that must be invoked
throughout the operation.
Params:
session – The repository session, must not be null.
request – The collection request, must not be null.
Throws:
DependencyCollectionException – If the dependency tree could not be built.
See Also:
RepositorySystemSession.getDependencyTraverser()
RepositorySystemSession.getDependencyManager()
RepositorySystemSession.getDependencySelector()
RepositorySystemSession.getVersionFilter()
RepositorySystemSession.getDependencyGraphTransformer()
RepositorySystem.collectDependencies(RepositorySystemSession, CollectRequest)
Returns:
The collection result, never null./**
     * Collects the transitive dependencies of some artifacts and builds a dependency graph. Note that this operation is
     * only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the
     * artifact files. The supplied session carries various hooks to customize the dependency graph that must be invoked
     * throughout the operation.
     * 
     * @param session The repository session, must not be {@code null}.
     * @param request The collection request, must not be {@code null}.
     * @return The collection result, never {@code null}.
     * @throws DependencyCollectionException If the dependency tree could not be built.
     * @see RepositorySystemSession#getDependencyTraverser()
     * @see RepositorySystemSession#getDependencyManager()
     * @see RepositorySystemSession#getDependencySelector()
     * @see RepositorySystemSession#getVersionFilter()
     * @see RepositorySystemSession#getDependencyGraphTransformer()
     * @see RepositorySystem#collectDependencies(RepositorySystemSession, CollectRequest)
     */
    CollectResult collectDependencies( RepositorySystemSession session, CollectRequest request )
        throws DependencyCollectionException;

}