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* 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.controller.repository.schema;
import org.apache.nifi.repository.schema.ComplexRecordField;
import org.apache.nifi.repository.schema.FieldType;
import org.apache.nifi.repository.schema.RecordField;
import org.apache.nifi.repository.schema.RecordSchema;
import org.apache.nifi.repository.schema.Repetition;
import org.apache.nifi.repository.schema.SimpleRecordField;
import org.apache.nifi.repository.schema.UnionRecordField;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class RepositoryRecordSchema {
public static final String REPOSITORY_RECORD_UPDATE_V1 = "Repository Record Update"; // top level field name
public static final String REPOSITORY_RECORD_UPDATE_V2 = "Repository Record Update"; // top level field name
// repository record fields
public static final String ACTION_TYPE = "Action";
public static final String RECORD_ID = "Record ID";
public static final String QUEUE_IDENTIFIER = "Queue Identifier";
public static final String SWAP_LOCATION = "Swap Location";
// Update types
public static final String CREATE_OR_UPDATE_ACTION = "Create or Update";
public static final String DELETE_ACTION = "Delete";
public static final String SWAP_IN_ACTION = "Swap In";
public static final String SWAP_OUT_ACTION = "Swap Out";
public static final RecordSchema REPOSITORY_RECORD_SCHEMA_V1;
public static final RecordSchema CREATE_OR_UPDATE_SCHEMA_V1;
public static final RecordSchema DELETE_SCHEMA_V1;
public static final RecordSchema SWAP_IN_SCHEMA_V1;
public static final RecordSchema SWAP_OUT_SCHEMA_V1;
public static final RecordSchema REPOSITORY_RECORD_SCHEMA_V2;
public static final RecordSchema CREATE_OR_UPDATE_SCHEMA_V2;
public static final RecordSchema DELETE_SCHEMA_V2;
public static final RecordSchema SWAP_IN_SCHEMA_V2;
public static final RecordSchema SWAP_OUT_SCHEMA_V2;
public static final RecordField ACTION_TYPE_FIELD = new SimpleRecordField(ACTION_TYPE, FieldType.STRING, Repetition.EXACTLY_ONE);
public static final RecordField RECORD_ID_FIELD = new SimpleRecordField(RECORD_ID, FieldType.LONG, Repetition.EXACTLY_ONE);
static {
// Fields for "Create" or "Update" records
final List<RecordField> createOrUpdateFields = new ArrayList<>();
createOrUpdateFields.add(ACTION_TYPE_FIELD);
createOrUpdateFields.addAll(FlowFileSchema.FLOWFILE_SCHEMA_V1.getFields());
createOrUpdateFields.add(new SimpleRecordField(QUEUE_IDENTIFIER, FieldType.STRING, Repetition.EXACTLY_ONE));
createOrUpdateFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.ZERO_OR_ONE));
final ComplexRecordField createOrUpdate = new ComplexRecordField(CREATE_OR_UPDATE_ACTION, Repetition.EXACTLY_ONE, createOrUpdateFields);
CREATE_OR_UPDATE_SCHEMA_V1 = new RecordSchema(createOrUpdateFields);
// Fields for "Delete" records
final List<RecordField> deleteFields = new ArrayList<>();
deleteFields.add(ACTION_TYPE_FIELD);
deleteFields.add(RECORD_ID_FIELD);
final ComplexRecordField delete = new ComplexRecordField(DELETE_ACTION, Repetition.EXACTLY_ONE, deleteFields);
DELETE_SCHEMA_V1 = new RecordSchema(deleteFields);
// Fields for "Swap Out" records
final List<RecordField> swapOutFields = new ArrayList<>();
swapOutFields.add(ACTION_TYPE_FIELD);
swapOutFields.add(RECORD_ID_FIELD);
swapOutFields.add(new SimpleRecordField(QUEUE_IDENTIFIER, FieldType.STRING, Repetition.EXACTLY_ONE));
swapOutFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.EXACTLY_ONE));
final ComplexRecordField swapOut = new ComplexRecordField(SWAP_OUT_ACTION, Repetition.EXACTLY_ONE, swapOutFields);
SWAP_OUT_SCHEMA_V1 = new RecordSchema(swapOutFields);
// Fields for "Swap In" records
final List<RecordField> swapInFields = new ArrayList<>(createOrUpdateFields);
swapInFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.EXACTLY_ONE));
final ComplexRecordField swapIn = new ComplexRecordField(SWAP_IN_ACTION, Repetition.EXACTLY_ONE, swapInFields);
SWAP_IN_SCHEMA_V1 = new RecordSchema(swapInFields);
// Union Field that creates the top-level field type
final UnionRecordField repoUpdateField = new UnionRecordField(REPOSITORY_RECORD_UPDATE_V1, Repetition.EXACTLY_ONE, createOrUpdate, delete, swapOut, swapIn);
REPOSITORY_RECORD_SCHEMA_V1 = new RecordSchema(Collections.singletonList(repoUpdateField));
}
static {
// Fields for "Create" or "Update" records
final List<RecordField> createOrUpdateFields = new ArrayList<>();
createOrUpdateFields.add(ACTION_TYPE_FIELD);
createOrUpdateFields.addAll(FlowFileSchema.FLOWFILE_SCHEMA_V2.getFields());
createOrUpdateFields.add(new SimpleRecordField(QUEUE_IDENTIFIER, FieldType.STRING, Repetition.EXACTLY_ONE));
createOrUpdateFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.ZERO_OR_ONE));
final ComplexRecordField createOrUpdate = new ComplexRecordField(CREATE_OR_UPDATE_ACTION, Repetition.EXACTLY_ONE, createOrUpdateFields);
CREATE_OR_UPDATE_SCHEMA_V2 = new RecordSchema(createOrUpdateFields);
// Fields for "Delete" records
final List<RecordField> deleteFields = new ArrayList<>();
deleteFields.add(ACTION_TYPE_FIELD);
deleteFields.add(RECORD_ID_FIELD);
final ComplexRecordField delete = new ComplexRecordField(DELETE_ACTION, Repetition.EXACTLY_ONE, deleteFields);
DELETE_SCHEMA_V2 = new RecordSchema(deleteFields);
// Fields for "Swap Out" records
final List<RecordField> swapOutFields = new ArrayList<>();
swapOutFields.add(ACTION_TYPE_FIELD);
swapOutFields.add(RECORD_ID_FIELD);
swapOutFields.add(new SimpleRecordField(QUEUE_IDENTIFIER, FieldType.STRING, Repetition.EXACTLY_ONE));
swapOutFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.EXACTLY_ONE));
final ComplexRecordField swapOut = new ComplexRecordField(SWAP_OUT_ACTION, Repetition.EXACTLY_ONE, swapOutFields);
SWAP_OUT_SCHEMA_V2 = new RecordSchema(swapOutFields);
// Fields for "Swap In" records
final List<RecordField> swapInFields = new ArrayList<>(createOrUpdateFields);
swapInFields.add(new SimpleRecordField(SWAP_LOCATION, FieldType.STRING, Repetition.EXACTLY_ONE));
final ComplexRecordField swapIn = new ComplexRecordField(SWAP_IN_ACTION, Repetition.EXACTLY_ONE, swapInFields);
SWAP_IN_SCHEMA_V2 = new RecordSchema(swapInFields);
// Union Field that creates the top-level field type
final UnionRecordField repoUpdateField = new UnionRecordField(REPOSITORY_RECORD_UPDATE_V2, Repetition.EXACTLY_ONE, createOrUpdate, delete, swapOut, swapIn);
REPOSITORY_RECORD_SCHEMA_V2 = new RecordSchema(Collections.singletonList(repoUpdateField));
}
}