engine/schema/src/com/cloud/upgrade/dao/Upgrade441to450.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,
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// specific language governing permissions and limitations
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package com.cloud.upgrade.dao;

import java.io.File;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;

import com.cloud.utils.exception.CloudRuntimeException;
import com.cloud.utils.script.Script;

public class Upgrade441to450 implements DbUpgrade {
    final static Logger s_logger = Logger.getLogger(Upgrade441to450.class);

    @Override
    public String[] getUpgradableVersionRange() {
        return new String[] {"4.4.1", "4.5.0"};
    }

    @Override
    public String getUpgradedVersion() {
        return "4.5.0";
    }

    @Override
    public boolean supportsRollingUpgrade() {
        return false;
    }

    @Override
    public File[] getPrepareScripts() {
        String script = Script.findScript("", "db/schema-441to450.sql");
        if (script == null) {
            throw new CloudRuntimeException("Unable to find db/schema-441to450.sql");
        }

        return new File[] {new File(script)};
    }

    @Override
    public void performDataMigration(Connection conn) {
        dropInvalidKeyFromStoragePoolTable(conn);
        dropDuplicatedForeignKeyFromAsyncJobTable(conn);
    }


    @Override
    public File[] getCleanupScripts() {
        String script = Script.findScript("", "db/schema-441to450-cleanup.sql");
        if (script == null) {
            throw new CloudRuntimeException("Unable to find db/schema-441to450-cleanup.sql");
        }

        return new File[] {new File(script)};
    }

    private void dropInvalidKeyFromStoragePoolTable(Connection conn) {
        HashMap<String, List<String>> uniqueKeys = new HashMap<String, List<String>>();
        List<String> keys = new ArrayList<String>();

        keys.add("id_2");
        uniqueKeys.put("storage_pool", keys);

        s_logger.debug("Dropping id_2 key from storage_pool table");
        for (Map.Entry<String, List<String>> entry: uniqueKeys.entrySet()) {
            DbUpgradeUtils.dropKeysIfExist(conn,entry.getKey(), entry.getValue(), false);
        }
    }

    private void dropDuplicatedForeignKeyFromAsyncJobTable(Connection conn) {
        HashMap<String, List<String>> foreignKeys = new HashMap<String, List<String>>();
        List<String> keys = new ArrayList<String>();

        keys.add("fk_async_job_join_map__join_job_id");
        foreignKeys.put("async_job_join_map", keys);

        s_logger.debug("Dropping fk_async_job_join_map__join_job_id key from async_job_join_map table");
        for (Map.Entry<String, List<String>> entry: foreignKeys.entrySet()) {
            DbUpgradeUtils.dropKeysIfExist(conn,entry.getKey(), entry.getValue(), true);
        }
    }
}