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19 package org.eclipse.aether.internal.impl;
20
21 import javax.inject.Inject;
22 import javax.inject.Named;
23 import javax.inject.Singleton;
24
25 import java.util.ArrayList;
26 import java.util.Collections;
27 import java.util.List;
28 import java.util.Map;
29
30 import org.eclipse.aether.RepositorySystemSession;
31 import org.eclipse.aether.impl.LocalRepositoryProvider;
32 import org.eclipse.aether.repository.LocalRepository;
33 import org.eclipse.aether.repository.LocalRepositoryManager;
34 import org.eclipse.aether.repository.NoLocalRepositoryManagerException;
35 import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
38
39 import static java.util.Objects.requireNonNull;
40
41
42
43 @Singleton
44 @Named
45 public class DefaultLocalRepositoryProvider implements LocalRepositoryProvider {
46
47 private static final Logger LOGGER = LoggerFactory.getLogger(DefaultLocalRepositoryProvider.class);
48
49 private final Map<String, LocalRepositoryManagerFactory> localRepositoryManagerFactories;
50
51 @Inject
52 public DefaultLocalRepositoryProvider(Map<String, LocalRepositoryManagerFactory> localRepositoryManagerFactories) {
53 this.localRepositoryManagerFactories = Collections.unmodifiableMap(localRepositoryManagerFactories);
54 }
55
56 @Override
57 public LocalRepositoryManager newLocalRepositoryManager(RepositorySystemSession session, LocalRepository repository)
58 throws NoLocalRepositoryManagerException {
59 requireNonNull(session, "session cannot be null");
60 requireNonNull(repository, "repository cannot be null");
61
62 PrioritizedComponents<LocalRepositoryManagerFactory> factories = PrioritizedComponents.reuseOrCreate(
63 session, localRepositoryManagerFactories, LocalRepositoryManagerFactory::getPriority);
64
65 List<NoLocalRepositoryManagerException> errors = new ArrayList<>();
66 for (PrioritizedComponent<LocalRepositoryManagerFactory> factory : factories.getEnabled()) {
67 try {
68 LocalRepositoryManager manager = factory.getComponent().newInstance(session, repository);
69
70 if (LOGGER.isDebugEnabled()) {
71 StringBuilder buffer = new StringBuilder(256);
72 buffer.append("Using manager ").append(manager.getClass().getSimpleName());
73 Utils.appendClassLoader(buffer, manager);
74 buffer.append(" with priority ").append(factory.getPriority());
75 buffer.append(" for ").append(repository.getBasePath());
76
77 LOGGER.debug(buffer.toString());
78 }
79
80 return manager;
81 } catch (NoLocalRepositoryManagerException e) {
82
83 errors.add(e);
84 }
85 }
86 if (LOGGER.isDebugEnabled() && errors.size() > 1) {
87 for (Exception e : errors) {
88 LOGGER.debug("Could not obtain local repository manager for {}", repository, e);
89 }
90 }
91
92 StringBuilder buffer = new StringBuilder(256);
93 if (factories.isEmpty()) {
94 buffer.append("No local repository managers registered");
95 } else {
96 buffer.append("Cannot access ").append(repository.getBasePath());
97 buffer.append(" with type ").append(repository.getContentType());
98 buffer.append(" using the available factories ");
99 factories.list(buffer);
100 }
101
102 throw new NoLocalRepositoryManagerException(
103 repository, buffer.toString(), errors.size() == 1 ? errors.get(0) : null);
104 }
105 }