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Saga Log API

There is a newer version: 0.5

package no.ssb.sagalog;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public interface SagaLog {

    CompletableFuture write(SagaLogEntryBuilder builder);

    CompletableFuture truncate(SagaLogEntryId id);

    CompletableFuture truncate();

    Stream readIncompleteSagas();

    Stream readEntries(String executionId);

    String toString(SagaLogEntryId id);

    SagaLogEntryId fromString(String id);

    byte[] toBytes(SagaLogEntryId id);

    SagaLogEntryId fromBytes(byte[] idBytes);

    default SagaLogEntryBuilder builder() {
        return new SagaLogEntryBuilder();
    }

    default Map> getSnapshotOfSagaLogEntriesByNodeId(String executionId) {
        Map> recoverySagaLogEntriesBySagaNodeId = new LinkedHashMap<>();
        List entries = readEntries(executionId).collect(Collectors.toList());
        for (SagaLogEntry entry : entries) {
            List nodeEntries = recoverySagaLogEntriesBySagaNodeId.get(entry.getNodeId());
            if (nodeEntries == null) {
                nodeEntries = new ArrayList<>(4);
                recoverySagaLogEntriesBySagaNodeId.put(entry.getNodeId(), nodeEntries);
            }
            nodeEntries.add(entry);
        }
        return recoverySagaLogEntriesBySagaNodeId;
    }
}