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    • io.zonky.test.db.flyway.preparer.FlywayDatabasePreparer Maven / Gradle / Ivy

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    A library for creating isolated embedded databases for Spring-powered integration tests.

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    /*
 * Copyright 2020 the original author or authors.
 *
 * 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 io.zonky.test.db.flyway.preparer;

import com.google.common.base.MoreObjects;
import com.google.common.base.Stopwatch;
import io.zonky.test.db.flyway.FlywayDescriptor;
import io.zonky.test.db.flyway.FlywayWrapper;
import io.zonky.test.db.preparer.DatabasePreparer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.SettableListenableFuture;

import javax.sql.DataSource;
import java.util.Objects;

public abstract class FlywayDatabasePreparer implements DatabasePreparer {

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    protected final SettableListenableFuture result = new SettableListenableFuture<>();
    protected final FlywayDescriptor descriptor;

    public FlywayDatabasePreparer(FlywayDescriptor descriptor) {
        this.descriptor = descriptor;
    }

    public FlywayDescriptor getDescriptor() {
        return descriptor;
    }

    public ListenableFuture getResult() {
        return result;
    }

    protected abstract Object doOperation(FlywayWrapper wrapper);

    @Override
    public void prepare(DataSource dataSource) {
        Stopwatch stopwatch = Stopwatch.createStarted();

        FlywayWrapper wrapper = FlywayWrapper.newInstance();
        descriptor.applyTo(wrapper);
        wrapper.setDataSource(dataSource);

        try {
            result.set(doOperation(wrapper));
            logger.trace("Database has been successfully prepared in {}", stopwatch);
        } catch (RuntimeException e) {
            result.setException(e);
            throw e;
        }
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        FlywayDatabasePreparer that = (FlywayDatabasePreparer) o;
        return Objects.equals(descriptor, that.descriptor);
    }

    @Override
    public int hashCode() {
        return Objects.hash(descriptor);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("schemas", descriptor.getSchemas())
                .add("estimatedDuration", estimatedDuration())
                .toString();
    }
}
    
    
    
    

    




    
    
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