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Added MissingDataException

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This is generated whenever a data resource cannot be built because it is missing data for at least one layer. Using a custom exception type here enables a few new features:

1. A single build process is now able to request missing data from all the layers that need it. Previously it would only request from the first missing layer and would then give up. This resulted in the user/application having to issue the build command multiple times rather than just once, until all layers had been requested.

2. GET /arbitrary/{service}/{name} will now block the response and retry in the background until the data arrives. This allows it to be used synchronously. Note: we'll need to add a timeout.

3. Loading a website via GET /site/{name} will avoid adding to the failed builds queue when a MissingDataException is thrown, which allows it to be quickly retried. The interface already auto refreshes, allowing the site to load as soon as it's available.
This commit is contained in:
CalDescent
2021-11-04 09:09:54 +00:00
parent ce15784851
commit 09a7fcaba4
10 changed files with 87 additions and 21 deletions
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5
src/test/java/org/qortal/test/arbitrary/ArbitraryDataTests.java
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@@ -7,6 +7,7 @@ import org.qortal.arbitrary.ArbitraryDataDigest;
import org.qortal.arbitrary.ArbitraryDataFile.*;
import org.qortal.arbitrary.ArbitraryDataReader;
import org.qortal.arbitrary.ArbitraryDataTransactionBuilder;
import org.qortal.arbitrary.exception.MissingDataException;
import org.qortal.arbitrary.metadata.ArbitraryDataMetadataPatch;
import org.qortal.data.transaction.ArbitraryTransactionData;
import org.qortal.data.transaction.ArbitraryTransactionData.*;
@@ -37,7 +38,7 @@ public class ArbitraryDataTests extends Common {
}
@Test
public void testCombineMultipleLayers() throws DataException, IOException {
public void testCombineMultipleLayers() throws DataException, IOException, MissingDataException {
try (final Repository repository = RepositoryManager.getRepository()) {
PrivateKeyAccount alice = Common.getTestAccount(repository, "alice");
String publicKey58 = Base58.encode(alice.getPublicKey());
@@ -159,7 +160,7 @@ public class ArbitraryDataTests extends Common {
}
@Test
public void testUpdateResource() throws DataException, IOException {
public void testUpdateResource() throws DataException, IOException, MissingDataException {
try (final Repository repository = RepositoryManager.getRepository()) {
PrivateKeyAccount alice = Common.getTestAccount(repository, "alice");
String publicKey58 = Base58.encode(alice.getPublicKey());