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34 package info.magnolia.config.source.yaml.decoration;
35
36 import static info.magnolia.config.registry.RegistryTypeNameUtil.pluralTypeNameOf;
37
38 import info.magnolia.config.map2bean.Map2BeanTransformer;
39 import info.magnolia.config.registry.DefaultDefinitionReference;
40 import info.magnolia.config.registry.Registry;
41 import info.magnolia.resourceloader.Resource;
42
43 import java.util.regex.Matcher;
44 import java.util.regex.Pattern;
45
46 import javax.inject.Inject;
47
48 import org.apache.commons.lang3.StringUtils;
49
50 import com.google.common.base.Optional;
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61 public class FilePathBasedYamlDefinitionDecoratorResolver implements FileDefinitionDecoratorResolver {
62
63 private static final String DECORATOR_FILE_PATH_CONVENTION = "^/(?<module>[a-zA-Z0-9-_]+)/decorations/(?<targetmodule>.*?)?/(?<deftype>%s)?/(?<relpath>.*/)?(?<refname>.+?)(\\.(?<decoratedpath>[a-zA-Z0-9-_\\.]*))*\\.yaml$";
64
65 private final Map2BeanTransformer map2BeanTransformer;
66
67 private Pattern decoratorFilePathPattern;
68
69 private Registry registry;
70
71 @Inject
72 public FilePathBasedYamlDefinitionDecoratorResolver(Map2BeanTransformer map2BeanTransformer, Registry registry) {
73 this.map2BeanTransformer = map2BeanTransformer;
74 this.registry = registry;
75 this.decoratorFilePathPattern = Pattern.compile(String.format(DECORATOR_FILE_PATH_CONVENTION, pluralTypeNameOf(registry)));
76 }
77
78 @Override
79 public <T> Optional<FileDefinitionDecorator<T>> resolve(Resource resource) {
80 final Matcher matcher = decoratorFilePathPattern.matcher(resource.getPath());
81 if (matcher.matches()) {
82
83 final String name = matcher.group("refname");
84 final String relativeLocation = StringUtils.isBlank(matcher.group("relpath")) ? name : matcher.group("relpath") + name;
85 final String targetModule = matcher.group("targetmodule");
86 final String hostModule = matcher.group("module");
87 final String decoratedPath = String.format("/%s", StringUtils.defaultIfBlank(matcher.group("decoratedpath"), "")).replaceAll("\\.", "/");
88
89
90 return Optional.<FileDefinitionDecorator<T>>of(
91 new YamlDefinitionDecorator<T>(
92 new YamlDefinitionDecoratorMetadata.Impl(
93 hostModule,
94 decoratedPath,
95 new DefaultDefinitionReference(targetModule, relativeLocation, name)),
96 registry,
97 resource,
98 map2BeanTransformer
99 ));
100 }
101
102 return Optional.absent();
103 }
104 }