001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.maven.resolver.examples.util;
020
021import java.io.IOException;
022import java.nio.file.Path;
023import java.nio.file.Paths;
024import java.util.ArrayList;
025import java.util.Collections;
026import java.util.List;
027
028import com.google.common.jimfs.Configuration;
029import com.google.common.jimfs.Jimfs;
030import org.eclipse.aether.RepositorySystem;
031import org.eclipse.aether.RepositorySystemSession;
032import org.eclipse.aether.RepositorySystemSession.SessionBuilder;
033import org.eclipse.aether.repository.RemoteRepository;
034import org.eclipse.aether.repository.RepositoryPolicy;
035import org.eclipse.aether.supplier.SessionBuilderSupplier;
036import org.eclipse.aether.util.graph.visitor.DependencyGraphDumper;
037
038/**
039 * A helper to boot the repository system and a repository system session.
040 */
041public class Booter {
042    public static final String FACTORY_SUPPLIER = "supplier";
043
044    public static final String FACTORY_SISU = "sisu";
045
046    public static final String FS_DEFAULT = "default";
047
048    public static final String FS_JIMFS = "jimfs";
049
050    public static final DependencyGraphDumper DUMPER_SOUT = new DependencyGraphDumper(System.out::println);
051
052    public static String selectFactory(String[] args) {
053        if (args == null || args.length == 0) {
054            return FACTORY_SUPPLIER;
055        } else {
056            return args[0];
057        }
058    }
059
060    public static String selectFs(String[] args) {
061        if (args == null || args.length < 2) {
062            return FS_DEFAULT;
063        } else {
064            return args[1];
065        }
066    }
067
068    public static RepositorySystem newRepositorySystem(final String factory) {
069        System.out.println("Using factory: " + factory);
070        return switch (factory) {
071            case FACTORY_SUPPLIER -> org.apache.maven.resolver.examples.supplier.SupplierRepositorySystemFactory
072                    .newRepositorySystem();
073            case FACTORY_SISU -> org.apache.maven.resolver.examples.sisu.SisuRepositorySystemFactory
074                    .newRepositorySystem();
075            default -> throw new IllegalArgumentException("Unknown factory: " + factory);
076        };
077    }
078
079    public static SessionBuilder newRepositorySystemSession(RepositorySystem system, String fs) {
080        System.out.println("Using FS: " + fs);
081        boolean close;
082        Path localRepository;
083        if (FS_JIMFS.equals(fs)) {
084            close = true;
085            localRepository = Jimfs.newFileSystem(Configuration.unix()).getPath("/demo");
086        } else {
087            close = false;
088            localRepository = Path.of("target/example-snippets-repo");
089        }
090        // Path localRepository = Path.of("target/example-snippets-repo");
091        SessionBuilder result = new SessionBuilderSupplier(system)
092                .get()
093                .withLocalRepositoryBaseDirectories(localRepository)
094                .setRepositoryListener(new ConsoleRepositoryListener())
095                .setTransferListener(new ConsoleTransferListener())
096                .setConfigProperty("aether.generator.gpg.enabled", Boolean.TRUE.toString())
097                .setConfigProperty(
098                        "aether.generator.gpg.keyFilePath",
099                        Paths.get("src/main/resources/alice.key")
100                                .toAbsolutePath()
101                                .toString());
102
103        // uncomment to generate dirty trees
104        // session.setDependencyGraphTransformer( null );
105
106        if (close) {
107            result.addOnSessionEndedHandler(() -> {
108                try {
109                    localRepository.getFileSystem().close();
110                } catch (IOException e) {
111                    e.printStackTrace();
112                }
113            });
114        }
115
116        return result;
117    }
118
119    public static List<RemoteRepository> newRepositories(RepositorySystem system, RepositorySystemSession session) {
120        return new ArrayList<>(Collections.singletonList(newCentralRepository()));
121    }
122
123    private static RemoteRepository newCentralRepository() {
124        return new RemoteRepository.Builder("central", "default", "https://repo.maven.apache.org/maven2/")
125                .setReleasePolicy(new RepositoryPolicy(
126                        true,
127                        RepositoryPolicy.UPDATE_POLICY_NEVER,
128                        RepositoryPolicy.UPDATE_POLICY_DAILY,
129                        RepositoryPolicy.CHECKSUM_POLICY_FAIL))
130                .setSnapshotPolicy(new RepositoryPolicy(
131                        false,
132                        RepositoryPolicy.UPDATE_POLICY_NEVER,
133                        RepositoryPolicy.UPDATE_POLICY_DAILY,
134                        RepositoryPolicy.CHECKSUM_POLICY_FAIL))
135                .build();
136    }
137}