minifi-nar-bundles/minifi-provenance-repository-bundle/minifi-provenance-repositories/src/main/java/org/apache/nifi/provenance/NoOpProvenanceRepository.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nifi.provenance;

import org.apache.nifi.authorization.Authorizer;
import org.apache.nifi.authorization.user.NiFiUser;
import org.apache.nifi.events.EventReporter;
import org.apache.nifi.provenance.lineage.ComputeLineageSubmission;
import org.apache.nifi.provenance.search.Query;
import org.apache.nifi.provenance.search.QuerySubmission;
import org.apache.nifi.provenance.search.SearchableField;

import java.io.IOException;
import java.util.List;
import java.util.Set;

import static java.util.Collections.EMPTY_SET;
import static java.util.Collections.emptyList;

/**
 * Implementation of {@link ProvenanceRepository} that does not
 * store events.
 *
 */
public class NoOpProvenanceRepository implements ProvenanceRepository {

  @Override
  public void initialize(EventReporter eventReporter, Authorizer authorizer,
      ProvenanceAuthorizableFactory factory, IdentifierLookup identifierLookup)
      throws IOException {

  }

  @Override
  public void close() throws IOException {

  }

  @Override
  public ProvenanceEventBuilder eventBuilder() {
    return new StandardProvenanceEventRecord.Builder();
  }

  @Override
  public ProvenanceEventRecord getEvent(long id) throws IOException {
    return null;
  }

  @Override
  public ProvenanceEventRecord getEvent(final long id, final NiFiUser user) throws IOException {
    return null;
  }

  @Override
  public List<ProvenanceEventRecord> getEvents(long firstRecordId, int maxRecords)
      throws IOException {
    return emptyList();
  }

  @Override
  public List<ProvenanceEventRecord> getEvents(long firstRecordId,
      int maxRecords, NiFiUser niFiUser) throws IOException {
    return emptyList();
  }

  @Override
  public Long getMaxEventId() {
    return null;
  }

  @Override
  public void registerEvent(ProvenanceEventRecord records) {

  }

  @Override
  public void registerEvents(Iterable<ProvenanceEventRecord> records) {

  }

  @Override
  public ProvenanceEventRepository getProvenanceEventRepository() {
    return this;
  }

  @Override
  public QuerySubmission submitQuery(Query query, NiFiUser niFiUser) {
    return null;
  }

  @Override
  public QuerySubmission retrieveQuerySubmission(String queryIdentifier, NiFiUser niFiUser) {
    return null;
  }

  @Override
  public ComputeLineageSubmission submitLineageComputation(String s, NiFiUser niFiUser) {
    return null;
  }

  @Override
  public ComputeLineageSubmission submitLineageComputation(long eventId, NiFiUser user) {
    return null;
  }

  @Override
  public List<SearchableField> getSearchableFields() {
    return null;
  }

  @Override
  public List<SearchableField> getSearchableAttributes() {
    return null;
  }

  @Override
  public Set<String> getContainerNames() {
    return EMPTY_SET;
  }

  @Override
  public long getContainerCapacity(String s) throws IOException {
    return 0;
  }

  @Override
  public String getContainerFileStoreName(String s) {
    return null;
  }

  @Override
  public long getContainerUsableSpace(String s) throws IOException {
    return 0;
  }

  @Override
  public AsyncLineageSubmission retrieveLineageSubmission(final String lineageIdentifier,
      final NiFiUser user) {
    return null;
  }

  @Override
  public AsyncLineageSubmission submitExpandParents(final long eventId, final NiFiUser user) {
    return null;
  }

  @Override
  public AsyncLineageSubmission submitExpandChildren(final long eventId, final NiFiUser user) {
    return null;
  }

}