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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.Collection;
27 import java.util.List;
28 import java.util.Set;
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.eclipse.aether.spi.locator.Service;
37 import org.eclipse.aether.spi.locator.ServiceLocator;
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
40
41 import static java.util.Objects.requireNonNull;
42
43
44
45 @Singleton
46 @Named
47 public class DefaultLocalRepositoryProvider implements LocalRepositoryProvider, Service {
48
49 private static final Logger LOGGER = LoggerFactory.getLogger(DefaultLocalRepositoryProvider.class);
50
51 private Collection<LocalRepositoryManagerFactory> managerFactories = new ArrayList<>();
52
53 @Deprecated
54 public DefaultLocalRepositoryProvider() {
55
56 }
57
58 @Inject
59 public DefaultLocalRepositoryProvider(Set<LocalRepositoryManagerFactory> factories) {
60 setLocalRepositoryManagerFactories(factories);
61 }
62
63 public void initService(ServiceLocator locator) {
64 setLocalRepositoryManagerFactories(locator.getServices(LocalRepositoryManagerFactory.class));
65 }
66
67 public DefaultLocalRepositoryProvider addLocalRepositoryManagerFactory(LocalRepositoryManagerFactory factory) {
68 managerFactories.add(requireNonNull(factory, "local repository manager factory cannot be null"));
69 return this;
70 }
71
72 public DefaultLocalRepositoryProvider setLocalRepositoryManagerFactories(
73 Collection<LocalRepositoryManagerFactory> factories) {
74 if (factories == null) {
75 managerFactories = new ArrayList<>(2);
76 } else {
77 managerFactories = factories;
78 }
79 return this;
80 }
81
82 public LocalRepositoryManager newLocalRepositoryManager(RepositorySystemSession session, LocalRepository repository)
83 throws NoLocalRepositoryManagerException {
84 requireNonNull(session, "session cannot be null");
85 requireNonNull(repository, "repository cannot be null");
86 PrioritizedComponents<LocalRepositoryManagerFactory> factories = new PrioritizedComponents<>(session);
87 for (LocalRepositoryManagerFactory factory : this.managerFactories) {
88 factories.add(factory, factory.getPriority());
89 }
90
91 List<NoLocalRepositoryManagerException> errors = new ArrayList<>();
92 for (PrioritizedComponent<LocalRepositoryManagerFactory> factory : factories.getEnabled()) {
93 try {
94 LocalRepositoryManager manager = factory.getComponent().newInstance(session, repository);
95
96 if (LOGGER.isDebugEnabled()) {
97 StringBuilder buffer = new StringBuilder(256);
98 buffer.append("Using manager ").append(manager.getClass().getSimpleName());
99 Utils.appendClassLoader(buffer, manager);
100 buffer.append(" with priority ").append(factory.getPriority());
101 buffer.append(" for ").append(repository.getBasedir());
102
103 LOGGER.debug(buffer.toString());
104 }
105
106 return manager;
107 } catch (NoLocalRepositoryManagerException e) {
108
109 errors.add(e);
110 }
111 }
112 if (LOGGER.isDebugEnabled() && errors.size() > 1) {
113 for (Exception e : errors) {
114 LOGGER.debug("Could not obtain local repository manager for {}", repository, e);
115 }
116 }
117
118 StringBuilder buffer = new StringBuilder(256);
119 if (factories.isEmpty()) {
120 buffer.append("No local repository managers registered");
121 } else {
122 buffer.append("Cannot access ").append(repository.getBasedir());
123 buffer.append(" with type ").append(repository.getContentType());
124 buffer.append(" using the available factories ");
125 factories.list(buffer);
126 }
127
128 throw new NoLocalRepositoryManagerException(
129 repository, buffer.toString(), errors.size() == 1 ? errors.get(0) : null);
130 }
131 }