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Merge pull request hhandoko#8 from builtamont-oss/chore/upstream_pr_17
Address upstream PR hhandoko#17
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src/main/java/com/builtamont/cassandra/migration/internal/command/Baseline.kt
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| /** | ||
| * File : Baseline.kt | ||
| * License : | ||
| * Original - Copyright (c) 2015 - 2016 Contrast Security | ||
| * Derivative - Copyright (c) 2016 Citadel Technology Solutions Pte Ltd | ||
| * | ||
| * Licensed 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 com.builtamont.cassandra.migration.internal.command | ||
|
|
||
| import com.builtamont.cassandra.migration.api.CassandraMigrationException | ||
| import com.builtamont.cassandra.migration.api.MigrationVersion | ||
| import com.builtamont.cassandra.migration.api.resolver.MigrationResolver | ||
| import com.builtamont.cassandra.migration.internal.dbsupport.SchemaVersionDAO | ||
|
|
||
| /** | ||
| * Handles the baseline command. | ||
| * | ||
| * @param migrationResolver The Cassandra migration resolver. | ||
| * @param baselineVersion The baseline version of the migration. | ||
| * @param schemaVersionDAO The Cassandra migration schema version DAO. | ||
| * @param baselineDescription The baseline version description / comments. | ||
| * @param user The user to execute the migration as. | ||
| */ | ||
| class Baseline( | ||
| private val migrationResolver: MigrationResolver, | ||
| private val baselineVersion: MigrationVersion, | ||
| private val schemaVersionDAO: SchemaVersionDAO, | ||
| private val baselineDescription: String, | ||
| private val user: String | ||
| ) { | ||
|
|
||
| /** | ||
| * Runs the migration baselining. | ||
| * | ||
| * @return The number of successfully applied migration baselining. | ||
| * @throws CassandraMigrationException when migration baselining failed for any reason. | ||
| */ | ||
| @Throws(CassandraMigrationException::class) | ||
| fun run() { | ||
| val baselineMigration = schemaVersionDAO.baselineMarker | ||
| if (schemaVersionDAO.hasAppliedMigrations()) { | ||
| val msg = "Unable to baseline metadata table ${schemaVersionDAO.tableName} as it already contains migrations" | ||
| throw CassandraMigrationException(msg) | ||
| } | ||
|
|
||
| if (schemaVersionDAO.hasBaselineMarker()) { | ||
| val isNotBaselineByVersion = !(baselineMigration.version?.equals(baselineVersion) ?: false) | ||
| val isNotBaselineByDescription = !baselineMigration.description.equals(baselineDescription) | ||
| if (isNotBaselineByVersion || isNotBaselineByDescription) { | ||
| val msg = "Unable to baseline metadata table ${schemaVersionDAO.tableName} with ($baselineVersion, $baselineDescription)" + | ||
| " as it has already been initialized with (${baselineMigration.version}, ${baselineMigration.description})" | ||
| throw CassandraMigrationException(msg) | ||
| } | ||
| } else { | ||
| if (baselineVersion.equals(MigrationVersion.fromVersion("0"))) { | ||
| val msg = "Unable to baseline metadata table ${schemaVersionDAO.tableName} with version 0 as this version was used for schema creation" | ||
| throw CassandraMigrationException(msg) | ||
| } | ||
| schemaVersionDAO.addBaselineMarker(baselineVersion, baselineDescription, user) | ||
| } | ||
| } | ||
|
|
||
| } |
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