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| 1 | +package org.testcontainers.containers; |
| 2 | + |
| 3 | +import io.r2dbc.client.Handle; |
| 4 | +import io.r2dbc.client.Query; |
| 5 | +import io.r2dbc.client.R2dbc; |
| 6 | +import io.r2dbc.spi.ConnectionFactoryMetadata; |
| 7 | +import io.r2dbc.spi.Result; |
| 8 | +import io.r2dbc.spi.Statement; |
| 9 | +import lombok.NonNull; |
| 10 | +import org.reactivestreams.Publisher; |
| 11 | +import org.rnorth.ducttape.unreliables.Unreliables; |
| 12 | + |
| 13 | +import java.sql.Connection; |
| 14 | +import java.sql.Driver; |
| 15 | +import java.sql.SQLException; |
| 16 | +import java.time.Duration; |
| 17 | +import java.time.temporal.TemporalUnit; |
| 18 | +import java.util.Properties; |
| 19 | +import java.util.concurrent.Future; |
| 20 | +import java.util.concurrent.TimeUnit; |
| 21 | + |
| 22 | +import io.r2dbc.spi.ConnectionFactory; |
| 23 | +import reactor.core.publisher.Mono; |
| 24 | + |
| 25 | +/** |
| 26 | + * Base class for containers that expose a R2DBC connection |
| 27 | + * |
| 28 | + * @author humblehound |
| 29 | + */ |
| 30 | +public abstract class R2dbcDatabaseContainer<SELF extends R2dbcDatabaseContainer<SELF>> extends GenericContainer<SELF> { |
| 31 | + |
| 32 | + private int startupTimeoutSeconds = 120; |
| 33 | + private int connectTimeoutSeconds = 120; |
| 34 | + |
| 35 | + public R2dbcDatabaseContainer(@NonNull final String dockerImageName) { |
| 36 | + super(dockerImageName); |
| 37 | + } |
| 38 | + |
| 39 | + public R2dbcDatabaseContainer(@NonNull final Future<String> image) { |
| 40 | + super(image); |
| 41 | + } |
| 42 | + |
| 43 | + /** |
| 44 | + * @return the name of the actual JDBC driver to use |
| 45 | + */ |
| 46 | + public abstract String getDriverClassName(); |
| 47 | + |
| 48 | + /** |
| 49 | + * @return the host of the dockerized DB |
| 50 | + */ |
| 51 | + public abstract String getHost(); |
| 52 | + |
| 53 | + /** |
| 54 | + * @return the port of the containerized DB |
| 55 | + */ |
| 56 | + protected abstract String getPort(); |
| 57 | + |
| 58 | + /** |
| 59 | + * @return the database name |
| 60 | + */ |
| 61 | + public abstract String getDatabaseName(); |
| 62 | + |
| 63 | + /** |
| 64 | + * @return the standard database username that should be used for connections |
| 65 | + */ |
| 66 | + public abstract String getUsername(); |
| 67 | + |
| 68 | + /** |
| 69 | + * @return the standard password that should be used for connections |
| 70 | + */ |
| 71 | + public abstract String getPassword(); |
| 72 | + |
| 73 | + /** |
| 74 | + * @return a test query string suitable for testing that this particular database type is alive |
| 75 | + */ |
| 76 | + protected abstract String getTestQueryString(); |
| 77 | + |
| 78 | + @Override |
| 79 | + protected void waitUntilContainerStarted() { |
| 80 | + // Repeatedly try and open a connection to the DB and execute a test query |
| 81 | + |
| 82 | + logger().info("Waiting for database connection to become available at {} using query '{}'", getHost(), getTestQueryString()); |
| 83 | + Unreliables.retryUntilSuccess(startupTimeoutSeconds, TimeUnit.SECONDS, () -> { |
| 84 | + |
| 85 | + if (!isRunning()) { |
| 86 | + throw new ContainerLaunchException("Container failed to start"); |
| 87 | + } |
| 88 | + |
| 89 | + R2dbc r2dbc = new R2dbc(createConnection("")); |
| 90 | + |
| 91 | + int success = r2dbc.inTransaction(handle -> |
| 92 | + handle.createQuery(this.getTestQueryString()).mapResult(Result::getRowsUpdated) |
| 93 | + ).blockFirst(); |
| 94 | + |
| 95 | + if (success > 0) { |
| 96 | + logger().info("Obtained a connection to container ({})", this.getTestQueryString()); |
| 97 | + return null; |
| 98 | + } else { |
| 99 | + throw new SQLException("Failed to execute test query"); |
| 100 | + } |
| 101 | + |
| 102 | + }); |
| 103 | + } |
| 104 | + |
| 105 | + /** |
| 106 | + * Creates a connection to the underlying containerized database instance. |
| 107 | + * |
| 108 | + * @param queryString query string parameters that should be appended to the JDBC connection URL. |
| 109 | + * The '?' character must be included |
| 110 | + * @return a Connection |
| 111 | + * @throws SQLException if there is a repeated failure to create the connection |
| 112 | + */ |
| 113 | + public ConnectionFactory createConnection(String queryString) throws SQLException { |
| 114 | + return new ConnectionFactory() { |
| 115 | + @Override |
| 116 | + public Publisher<? extends io.r2dbc.spi.Connection> create() { |
| 117 | + return null; |
| 118 | + } |
| 119 | + |
| 120 | + @Override |
| 121 | + public ConnectionFactoryMetadata getMetadata() { |
| 122 | + return null; |
| 123 | + } |
| 124 | + }; |
| 125 | +// final Properties info = new Properties(); |
| 126 | +// info.put("user", this.getUsername()); |
| 127 | +// info.put("password", this.getPassword()); |
| 128 | +// final String url = constructUrlForConnection(queryString); |
| 129 | +// |
| 130 | +// final Driver jdbcDriverInstance = getJdbcDriverInstance(); |
| 131 | +// |
| 132 | +// try { |
| 133 | +// return Unreliables.retryUntilSuccess(getConnectTimeoutSeconds(), TimeUnit.SECONDS, () -> |
| 134 | +// DB_CONNECT_RATE_LIMIT.getWhenReady(() -> |
| 135 | +// jdbcDriverInstance.connect(url, info))); |
| 136 | +// } catch (Exception e) { |
| 137 | +// throw new SQLException("Could not create new connection", e); |
| 138 | +// } |
| 139 | + } |
| 140 | +} |
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