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package es.webbeta.serializer; |
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import es.webbeta.serializer.base.Cache; |
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import es.webbeta.serializer.base.MetadataAccessor; |
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import java.io.File; |
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public class CacheMetadataAccessor extends FileMetadataAccessor implements MetadataAccessor { |
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private static final String KEY_TPL = "serializer_metadata___%s"; |
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private Cache cache; |
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public CacheMetadataAccessor(Cache cache) { |
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super(); |
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this.cache = cache; |
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} |
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private String generateKey(Class<?> klass) { |
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return generateKey(klass.getCanonicalName()); |
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} |
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private String generateKey(String canonical) { |
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return String.format(KEY_TPL, canonical); |
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} |
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private String getFilenameWithoutExtension(String fileName) { |
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if (fileName.indexOf(".") > 0) { |
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return fileName.substring(0, fileName.lastIndexOf(".")); |
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} else { |
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return fileName; |
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} |
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} |
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@Override |
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public Boolean hasMetadata(Class<?> klass) { |
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return super.hasMetadata(klass); |
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} |
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@Override |
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public String getMetadataContent(Class<?> klass) { |
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String key = generateKey(klass); |
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if (cache.get(key) != null) |
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return cache.get(key); |
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else { |
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if (super.hasMetadata(klass)) { |
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String metadata = super.getMetadataContent(klass); |
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cache.set(key, metadata); |
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return metadata; |
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} else |
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return null; |
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} |
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} |
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/** |
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* Removes all cache entries |
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*/ |
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public void clearMetadataCache() { |
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File dir = this.metadataPath.toFile(); |
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if (dir == null) return; |
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File[] files = dir.listFiles(); |
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if (files == null) return; |
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for (final File fileEntry : files) { |
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if (!fileEntry.isFile()) continue; |
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String canonical = getFilenameWithoutExtension(fileEntry.getName()); |
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String cacheKey = generateKey(canonical); |
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if (cache.get(cacheKey) != null) |
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cache.remove(cacheKey); |
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} |
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} |
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} |
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webbeta /
Serializer
Moisés Gramary
If you are just looking for the presence of a string in another string, consider using
contains().Should really want to test if a string is there, but not before a specific position, consider using this overload of
indexOf()