org.testcontainers.containers.JdbcDatabaseContainerProvider Maven / Gradle / Ivy

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Isolated container management for Java code testing
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package org.testcontainers.containers;

import org.testcontainers.jdbc.ConnectionUrl;

import lombok.extern.slf4j.Slf4j;

import java.util.Objects;

/**
 * Base class for classes that can provide a JDBC container.
 */
@Slf4j
public abstract class JdbcDatabaseContainerProvider {

    /**
     * Tests if the specified database type is supported by this Container Provider. It should match to the base image name.
     * @param databaseType {@link String}
     * @return true when provider can handle this database type, else false.
     */
    public abstract boolean supports(String databaseType);

    /**
     * Instantiate a new {@link JdbcDatabaseContainer} without any specified image tag. Subclasses should
     * override this method if possible, to provide a default tag that is more stable than latest`.
     *
     * @return Instance of {@link JdbcDatabaseContainer}
     */
    public JdbcDatabaseContainer newInstance() {
        log.warn("No explicit version tag was provided in JDBC URL and this class ({}) does not " +
            "override newInstance() to set a default tag. `latest` will be used but results may " +
            "be unreliable!", this.getClass().getCanonicalName());
        return this.newInstance("latest");
    }

    /**
     * Instantiate a new {@link JdbcDatabaseContainer} with specified image tag.
     * @param tag
     * @return Instance of {@link JdbcDatabaseContainer}
     */
    public abstract JdbcDatabaseContainer newInstance(String tag);

    /**
     * Instantiate a new {@link JdbcDatabaseContainer} using information provided with {@link ConnectionUrl}.
     * @param url {@link ConnectionUrl}
     * @return Instance of {@link JdbcDatabaseContainer}
     */
    public JdbcDatabaseContainer newInstance(ConnectionUrl url) {
        final JdbcDatabaseContainer result;
        if (url.getImageTag().isPresent()) {
            result = newInstance(url.getImageTag().get());
        } else {
            result = newInstance();
        }
        result.withReuse(url.isReusable());
        return result;
    }

    protected JdbcDatabaseContainer newInstanceFromConnectionUrl(ConnectionUrl connectionUrl, final String userParamName, final String pwdParamName) {
        Objects.requireNonNull(connectionUrl, "Connection URL cannot be null");

        final String databaseName = connectionUrl.getDatabaseName().orElse("test");
        final String user = connectionUrl.getQueryParameters().getOrDefault(userParamName, "test");
        final String password = connectionUrl.getQueryParameters().getOrDefault(pwdParamName, "test");

        final JdbcDatabaseContainer instance;
        if (connectionUrl.getImageTag().isPresent()) {
            instance = newInstance(connectionUrl.getImageTag().get());
        } else {
            instance = newInstance();
        }

        return instance
            .withReuse(connectionUrl.isReusable())
            .withDatabaseName(databaseName)
            .withUsername(user)
            .withPassword(password);
    }
}