Add fix

hapi-fhir-storage/src/main/java/ca/uhn/fhir/jpa/binary/api/BinaryContentIdDeserializer.java

@@ -0,0 +1,36 @@
+package ca.uhn.fhir.jpa.binary.api;
+
+import com.fasterxml.jackson.core.JacksonException;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.IOException;
+
+/**
+ * This deserializer exists to fix a break that changing this property name caused.
+ * in 7.2.0 we went from blobId to binaryContentId. However this did not consider installations using filesystem
+ * mode storage in which the data on disk was not updated, and existing stored details used `blobId`. This causes
+ * Jackson deserialization failures which are tough to recover from without manually modifying all those stored details
+ * on disk.
+ * <p>
+ * <p>
+ * This class is a shim to support the old and new names.
+ */
+class BinaryContentIdDeserializer extends JsonDeserializer<String> {
+
+	@Override
+	public String deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JacksonException {
+		JsonNode node = jp.getCodec().readTree(jp);
+		JsonNode binaryContentIdNode = node.get("binaryContentId");
+		if (binaryContentIdNode != null && !binaryContentIdNode.isNull()) {
+			return binaryContentIdNode.asText();
+		}
+		JsonNode blobIdNode = node.get("blobId");
+		if (blobIdNode != null && !blobIdNode.isNull()) {
+			return blobIdNode.asText();
+		}
+		return null;
+	}
+}

hapi-fhir-storage/src/main/java/ca/uhn/fhir/jpa/binary/api/OldStoredDetails.java

@@ -137,9 +137,13 @@ public class OldStoredDetails implements IModelJson {
 
 	public StoredDetails toDetails() {
 		HashFunction hash = Hashing.sha256();
-		StoredDetails storedDetails = new StoredDetails(myBinaryContentId, myBytes, myContentType, new HashingInputStream(hash,new ByteArrayInputStream("whatever".getBytes())), myPublished);
+		StoredDetails storedDetails = new StoredDetails(
+				myBinaryContentId,
+				myBytes,
+				myContentType,
+				new HashingInputStream(hash, new ByteArrayInputStream("whatever".getBytes())),
+				myPublished);
 		storedDetails.setHash(myHash);
 		return storedDetails;
-
 	}
 }

hapi-fhir-storage/src/main/java/ca/uhn/fhir/jpa/binary/api/StoredDetails.java

@@ -33,9 +33,22 @@ import java.util.Date;
 
 public class StoredDetails implements IModelJson {
 
-	@JsonProperty("binaryContentId")
+	@JsonProperty(value = "binaryContentId")
 	private String myBinaryContentId;
 
+	/**
+	 * This field exists to fix a break that changing this property name caused.
+	 * in 7.2.0 we went from blobId to binaryContentId. However this did not consider installations using filesystem
+	 * mode storage in which the data on disk was not updated, and needed to be Serialized/Deserialized at runtime.
+	 * Existing stored details used `blobId`. This causes Jackson deserialization failures which are tough to recover
+	 * from without manually modifying all those stored details
+	 * on disk.
+	 * This field is a relic to support old blobs post-upgrade to 7.2.0. It is not ever surfaced to the user, and is proxied
+	 * into `myBinaryContentId` when needed.
+	 */
+	@JsonProperty(value = "blobId")
+	private String myBlobId;
+
 	@JsonProperty("bytes")
 	private long myBytes;
 
@@ -77,7 +90,7 @@ public class StoredDetails implements IModelJson {
 	@Override
 	public String toString() {
 		return new ToStringBuilder(this)
-				.append("binaryContentId", myBinaryContentId)
+				.append("binaryContentId", getBinaryContentId())
 				.append("bytes", myBytes)
 				.append("contentType", myContentType)
 				.append("hash", myHash)
@@ -115,7 +128,11 @@ public class StoredDetails implements IModelJson {
 
 	@Nonnull
 	public String getBinaryContentId() {
-		return myBinaryContentId;
+		if (myBinaryContentId == null && myBlobId != null) {
+			return myBlobId;
+		} else {
+			return myBinaryContentId;
+		}
 	}
 
 	public StoredDetails setBinaryContentId(String theBinaryContentId) {
@@ -131,4 +148,5 @@ public class StoredDetails implements IModelJson {
 		myBytes = theBytes;
 		return this;
 	}
+
 }

hapi-fhir-storage/src/main/java/ca/uhn/fhir/jpa/binstore/FilesystemBinaryStorageSvcImpl.java

@@ -113,7 +113,8 @@ public class FilesystemBinaryStorageSvcImpl extends BaseBinaryStorageSvcImpl {
 		long count = countingInputStream.getByteCount();
 		StoredDetails details = null;
 		if (HapiSystemProperties.isUnitTestModeEnabled()) {
-			OldStoredDetails oldDetails  = new OldStoredDetails(id, count, theContentType, hashingInputStream, new Date());
+			OldStoredDetails oldDetails =
+					new OldStoredDetails(id, count, theContentType, hashingInputStream, new Date());
 			File descriptorFilename = getDescriptorFilename(storagePath, theResourceId, id);
 			ourLog.info("Writing to file: {}", descriptorFilename.getAbsolutePath());
 			try (FileWriter writer = new FileWriter(descriptorFilename)) {