jeantil commented on code in PR #2960:
URL: https://github.com/apache/james-project/pull/2960#discussion_r2971818484
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server/blob/blob-api/src/main/java/org/apache/james/blob/api/BlobStoreDAO.java:
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@@ -25,23 +25,77 @@
import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.Map;
+import java.util.Optional;
import org.reactivestreams.Publisher;
+import com.google.common.base.CharMatcher;
+import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.google.common.io.ByteSource;
import com.google.common.io.FileBackedOutputStream;
public interface BlobStoreDAO {
record BlobMetadataName(String name) {
- // TODO validation (a-z,A-Z,0-9 -_) &length 128 char & non empty
+ private static final CharMatcher CHAR_MATCHER =
CharMatcher.inRange('a', 'z')
+ .or(CharMatcher.inRange('A', 'Z'))
+ .or(CharMatcher.inRange('0', '9'))
+ .or(CharMatcher.is('-'));
+
+ public BlobMetadataName {
+ Preconditions.checkArgument(CHAR_MATCHER.matchesAllOf(name),
"Invalid char in metadata name. Must be a-z,A-Z,0-9 or - got " + name);
+ Preconditions.checkArgument(name.length() < 128, "Metadata name is
too long. Size exceed 128 chars");
+ }
}
+
record BlobMetadataValue(String value) {
+ public BlobMetadataValue {
+ Preconditions.checkArgument(value.length() < 128, "Metadata value
is too long. Size exceed 128 chars");
+ }
+ }
+
+ record ContentTransferEncoding(String value) {
+ public static BlobMetadataName NAME = new
BlobMetadataName("content-transfer-encoding");
+ public static ContentTransferEncoding ZSTD = new
ContentTransferEncoding("zstd");
+
+ public static ContentTransferEncoding fromValue(BlobMetadataValue
value) {
+ return new ContentTransferEncoding(value.value());
+ }
+
+ public ContentTransferEncoding {
+ Preconditions.checkArgument(value.length() < 128,
"ContentTransferEncoding value is too long. Size exceed 128 chars");
+ }
+
+ public BlobMetadataValue asValue() {
+ return new BlobMetadataValue(value);
+ }
}
+ record BlobMetadata(Map<BlobMetadataName, BlobMetadataValue> metadata) {
Review Comment:
```
record BlobMetadata(ImmutableMap<BlobMetadataName, BlobMetadataValue>
metadata) {
```
java.util.Map allows for mutable implementations and doesn't inform
consumers that the property is immutable
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