001package org.eclipse.aether.internal.impl.collect;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.eclipse.aether.impl.ArtifactDescriptorReader;
023import org.eclipse.aether.impl.DependencyCollector;
024import org.eclipse.aether.impl.RemoteRepositoryManager;
025import org.eclipse.aether.impl.VersionRangeResolver;
026import org.eclipse.aether.spi.locator.ServiceLocator;
027import org.slf4j.Logger;
028import org.slf4j.LoggerFactory;
029
030import static java.util.Objects.requireNonNull;
031
032/**
033 * Helper class for delegate implementations, they MUST subclass this class.
034 *
035 * @since 1.8.0
036 */
037public abstract class DependencyCollectorDelegate implements DependencyCollector
038{
039    protected static final String CONFIG_PROP_MAX_EXCEPTIONS = "aether.dependencyCollector.maxExceptions";
040
041    protected static final int CONFIG_PROP_MAX_EXCEPTIONS_DEFAULT = 50;
042
043    protected static final String CONFIG_PROP_MAX_CYCLES = "aether.dependencyCollector.maxCycles";
044
045    protected static final int CONFIG_PROP_MAX_CYCLES_DEFAULT = 10;
046
047    protected final Logger logger = LoggerFactory.getLogger( getClass() );
048
049    protected RemoteRepositoryManager remoteRepositoryManager;
050
051    protected ArtifactDescriptorReader descriptorReader;
052
053    protected VersionRangeResolver versionRangeResolver;
054
055    public DependencyCollectorDelegate()
056    {
057        // enables default constructor
058    }
059
060    protected DependencyCollectorDelegate( RemoteRepositoryManager remoteRepositoryManager,
061                           ArtifactDescriptorReader artifactDescriptorReader,
062                           VersionRangeResolver versionRangeResolver )
063    {
064        setRemoteRepositoryManager( remoteRepositoryManager );
065        setArtifactDescriptorReader( artifactDescriptorReader );
066        setVersionRangeResolver( versionRangeResolver );
067    }
068
069    public void initService( ServiceLocator locator )
070    {
071        setRemoteRepositoryManager( locator.getService( RemoteRepositoryManager.class ) );
072        setArtifactDescriptorReader( locator.getService( ArtifactDescriptorReader.class ) );
073        setVersionRangeResolver( locator.getService( VersionRangeResolver.class ) );
074    }
075
076    public DependencyCollector setRemoteRepositoryManager( RemoteRepositoryManager remoteRepositoryManager )
077    {
078        this.remoteRepositoryManager =
079                requireNonNull( remoteRepositoryManager, "remote repository manager cannot be null" );
080        return this;
081    }
082
083    public DependencyCollector setArtifactDescriptorReader( ArtifactDescriptorReader artifactDescriptorReader )
084    {
085        descriptorReader = requireNonNull( artifactDescriptorReader, "artifact descriptor reader cannot be null" );
086        return this;
087    }
088
089    public DependencyCollector setVersionRangeResolver( VersionRangeResolver versionRangeResolver )
090    {
091        this.versionRangeResolver =
092                requireNonNull( versionRangeResolver, "version range resolver cannot be null" );
093        return this;
094    }
095
096}