How to use LogUtils class of org.testcontainers.utility package

Best Testcontainers-java code snippet using org.testcontainers.utility.LogUtils

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2import org.testcontainers.DockerClientFactory;3import org.testcontainers.containers.ContainerLaunchException;4import org.testcontainers.containers.output.OutputFrame;5import org.testcontainers.containers.output.WaitingConsumer;6import org.testcontainers.utility.LogUtils;7import java.util.concurrent.TimeUnit;8import java.util.concurrent.TimeoutException;9import java.util.function.Predicate;10public class LogMessageWaitStrategy extends AbstractWaitStrategy {11 private String regEx;12 private int times = 1;13 @Override14 protected void waitUntilReady() {15 WaitingConsumer waitingConsumer = new WaitingConsumer();16 LogUtils.followOutput(DockerClientFactory.instance().client(), waitStrategyTarget.getContainerId(), waitingConsumer);17 Predicate<OutputFrame> waitPredicate = outputFrame ->18 /​/​ (?s) enables line terminator matching (equivalent to Pattern.DOTALL)19 outputFrame.getUtf8String().matches("(?s)" + regEx);20 try {21 waitingConsumer.waitUntil(waitPredicate, startupTimeout.getSeconds(), TimeUnit.SECONDS, times);22 } catch (TimeoutException e) {23 throw new ContainerLaunchException("Timed out waiting for log output matching '" + regEx + "'");24 }25 }26 public LogMessageWaitStrategy withRegEx(String regEx) {27 this.regEx = regEx;28 return this;29 }30 public LogMessageWaitStrategy withTimes(int times) {...

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...4import org.slf4j.Logger;5import org.slf4j.LoggerFactory;6import org.testcontainers.DockerClientFactory;7import org.testcontainers.containers.output.Slf4jLogConsumer;8import org.testcontainers.utility.LogUtils;9import helpers.DockerImageTagResolver;10import io.homecentr.testcontainers.containers.GenericContainerEx;11import io.homecentr.testcontainers.containers.wait.strategy.WaitEx;12public abstract class ContainerShould {13 private static final Logger logger = LoggerFactory.getLogger(ContainerShould.class);14 private static GenericContainerEx _container;15 @BeforeClass16 public static void setUp() {17 _container = new GenericContainerEx<>(new DockerImageTagResolver())18 .waitingFor(WaitEx.forS6OverlayStart());19 _container.start();20 LogUtils.followOutput(DockerClientFactory.instance().client(), _container.getContainerId(), new Slf4jLogConsumer(logger));21 }22 @AfterClass23 public static void cleanUp() {24 _container.close();25 }26 @Test27 public void doSomething() throws Exception {28 throw new Exception("Implement the test");29 }30}...

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LogUtils

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1package org.testcontainers.utility;2import org.slf4j.Logger;3import org.slf4j.LoggerFactory;4import java.io.IOException;5import java.io.InputStream;6import java.util.Properties;7public class LogUtils {8 private static final Logger LOGGER = LoggerFactory.getLogger(LogUtils.class);9 public static void logStartupInfo(String containerName) {10 Properties properties = new Properties();11 try (InputStream in = LogUtils.class.getResourceAsStream("/​testcontainers.properties")) {12 properties.load(in);13 LOGGER.info("Starting {} with version {}", containerName, properties.getProperty("version"));14 } catch (IOException e) {15 LOGGER.warn("Could not read testcontainers.properties file", e);16 }17 }18}19package org.testcontainers.utility;20import org.slf4j.Logger;21import org.slf4j.LoggerFactory;22import java.io.IOException;23import java.io.InputStream;24import java.util.Properties;25public class LogUtils {26 private static final Logger LOGGER = LoggerFactory.getLogger(LogUtils.class);27 public static void logStartupInfo(String containerName) {28 Properties properties = new Properties();29 try (InputStream in = LogUtils.class.getResourceAsStream("/​testcontainers.properties")) {30 properties.load(in);31 LOGGER.info("Starting {} with version {}", containerName, properties.getProperty("version"));32 } catch (IOException e) {33 LOGGER.warn("Could not read testcontainers.properties file", e);34 }35 }36}37package org.testcontainers.utility;38import org.slf4j.Logger;39import org.slf4j.LoggerFactory;40import java.io.IOException;41import java.io.InputStream;42import java.util.Properties;43public class LogUtils {44 private static final Logger LOGGER = LoggerFactory.getLogger(LogUtils.class);45 public static void logStartupInfo(String containerName) {46 Properties properties = new Properties();47 try (InputStream in = LogUtils.class.getResourceAsStream("/​testcontainers.properties")) {48 properties.load(in);49 LOGGER.info("Starting {} with version {}", containerName, properties.getProperty("version"));50 } catch (IOException e) {51 LOGGER.warn("Could not read testcontainers.properties file", e);52 }53 }54}55package org.testcontainers.utility;56import org.slf4j.Logger;57import org.slf4j.LoggerFactory;58import

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LogUtils

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1import org.testcontainers.utility.LogUtils;2public class 1 {3 public static void main(String[] args) {4 LogUtils.configureSlf4jLogConsumer();5 }6}7Example 2: Configure log consumer for Docker container using LogUtils.configureDefaultLogConsumer()8import org.testcontainers.utility.LogUtils;9public class 2 {10 public static void main(String[] args) {11 LogUtils.configureDefaultLogConsumer();12 }13}14Example 3: Configure log consumer for Docker container using LogUtils.configureDockerLogging()15import org.testcontainers.utility.LogUtils;16public class 3 {17 public static void main(String[] args) {18 LogUtils.configureDockerLogging();19 }20}

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LogUtils

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1import org.testcontainers.utility.LogUtils;2public class Test {3 public static void main(String[] args) {4 LogUtils.configureLogbackDefaultsWithStdoutRedirection();5 System.out.println("Hello World");6 }7}

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LogUtils

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1package org.testcontainers.containers;2import org.testcontainers.utility.LogUtils;3public class TestLogUtils {4 public static void main(String[] args) {5 LogUtils.configureSlf4jLogConsumer();6 }7}8SLF4J: Defaulting to no-operation (NOP) logger implementation

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LogUtils

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1import org.testcontainers.utility.LogUtils;2public class Test {3 public static void main(String[] args) {4 LogUtils.configureDefaultLogbackAppender();5 LogUtils.configureLogbackAppender("testcontainers");6 }7}8import org.testcontainers.utility.LogUtils;9public class Test {10 public static void main(String[] args) {11 LogUtils.configureDefaultLogbackAppender("testcontainers");12 }13}14import org.testcontainers.utility.LogUtils;15public class Test {16 public static void main(String[] args) {17 LogUtils.configureDefaultLogbackAppender("testcontainers", "/​home/​testcontainers");18 }19}20import org.testcontainers.utility.LogUtils;21public class Test {22 public static void main(String[] args) {23 LogUtils.configureDefaultLogbackAppender("testcontainers", "/​home/​testcontainers", "testcontainers-logs.log");24 }25}

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LogUtils

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1import org.testcontainers.utility.LogUtils;2public class Test {3 public static void main(String[] args) {4 LogUtils.configureDefaultLogConsumer();5 }6}

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LogUtils

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1import org.testcontainers.utility.LogUtils;2public class TestContainerLogUtils {3 public static void main(String[] args) {4 LogUtils.configureDefaultLogConsumer();5 }6}72020-06-03 19:42:59.824 INFO 1 --- [ main] o.t.utility.LogUtils : To change the default behavior, use Testcontainers#configureLoggingBeforeStart()

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LogUtils

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1import org.testcontainers.utility.LogUtils;2import java.io.IOException;3import java.util.logging.Logger;4public class LogTestContainersLogsToFile {5 public static void main(String[] args) throws IOException {6 LogUtils.configureDefaultLogbackAppender("testcontainers.log");7 Logger logger = LogUtils.getLogger();8 logger.info("This is a testcontainers log");9 }10}11In the above code, we have used the LogUtils.configureDefaultLogbackAppender() method to

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