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  3. org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass

Java 类org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass 实例源码

项目：spring-boot-shiro    文件：ShiroConfiguration.java    
/**
 * (基于内存的)用户授权信息Cache
 */
@Bean(name = "cacheManager")
@ConditionalOnMissingBean(name = "cacheManager")
@ConditionalOnMissingClass(value = {"org.apache.shiro.cache.ehcache.EhCacheManager"})
public CacheManager cacheManager() {
    return new MemoryConstrainedCacheManager();
}
项目：hadoop-on-demand-rest-jhipster    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "es.cesga.hadoop.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if(StringUtils.isEmpty(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：jhipster-websocket-example    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "de.kumpelblase2.jhipsterwebsocket.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：jittrackGTS    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "com.jittrack.gts.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：website    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "com.miagebdx.website.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：quartz-hipster-ui    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "com.tomkasp.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                " cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if(StringUtils.isEmpty(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：lapetiterennes    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "close")
@ConditionalOnMissingClass("fr.lpr.membership.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (dataSourcePropertyResolver.getProperty("url") == null && dataSourcePropertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                " cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(dataSourcePropertyResolver.getProperty("dataSourceClassName"));
    if(StringUtils.isEmpty(dataSourcePropertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", dataSourcePropertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", dataSourcePropertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", dataSourcePropertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", dataSourcePropertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", dataSourcePropertyResolver.getProperty("password"));

    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：JQuaternion    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "com.jquaternion.jqsa.config.HerokuDatabaseConfiguration.class")
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(environment.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    return new HikariDataSource(config);
}
项目：kork    文件：SpectatorConfiguration.java    
@Bean
@Primary
@ConditionalOnMissingClass("org.springframework.messaging.MessageChannel")
@ConditionalOnMissingBean(name = "primaryMetricWriter")
public MetricWriter primaryMetricWriter(List<MetricWriter> writers) {
  return new CompositeMetricWriter(writers);
}
项目：iobrew    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "org.iobrew.config.HerokuDatabaseConfiguration")
@Profile("!cloud")
public DataSource dataSource(MetricRegistry metricRegistry) {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(environment.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    config.setMetricRegistry(metricRegistry);
    return new HikariDataSource(config);
}
项目：alv-ch-sysinfos.api    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "ch.alv.sysinfos.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：BikeMan    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "de.rwth.idsg.bikeman.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：spring-cloud-netflix    文件：OkHttpRibbonConfiguration.java    
@Bean
@ConditionalOnMissingBean(AbstractLoadBalancerAwareClient.class)
@ConditionalOnMissingClass(value = "org.springframework.retry.support.RetryTemplate")
public OkHttpLoadBalancingClient retryableOkHttpLoadBalancingClient(
    IClientConfig config,
    ServerIntrospector serverIntrospector, ILoadBalancer loadBalancer,
    RetryHandler retryHandler, OkHttpClient delegate) {
    OkHttpLoadBalancingClient client = new OkHttpLoadBalancingClient(delegate, config,
            serverIntrospector);
    client.setLoadBalancer(loadBalancer);
    client.setRetryHandler(retryHandler);
    Monitors.registerObject("Client_" + this.name, client);
    return client;
}
项目：spring-cloud-netflix    文件：HttpClientRibbonConfiguration.java    
@Bean
@ConditionalOnMissingBean(AbstractLoadBalancerAwareClient.class)
@ConditionalOnMissingClass(value = "org.springframework.retry.support.RetryTemplate")
public RibbonLoadBalancingHttpClient ribbonLoadBalancingHttpClient(
    IClientConfig config, ServerIntrospector serverIntrospector,
    ILoadBalancer loadBalancer, RetryHandler retryHandler, CloseableHttpClient httpClient) {
    RibbonLoadBalancingHttpClient client = new RibbonLoadBalancingHttpClient(httpClient, config, serverIntrospector);
    client.setLoadBalancer(loadBalancer);
    client.setRetryHandler(retryHandler);
    Monitors.registerObject("Client_" + this.name, client);
    return client;
}
项目：spring-cloud-netflix    文件：FeignRibbonClientAutoConfiguration.java    
@Bean
@Primary
@ConditionalOnMissingClass("org.springframework.retry.support.RetryTemplate")
public CachingSpringLoadBalancerFactory cachingLBClientFactory(
        SpringClientFactory factory) {
    return new CachingSpringLoadBalancerFactory(factory);
}
项目：jittrackGTS    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "com.jittrack.gts.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (propertyResolver.getProperty("url") == null && propertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                "cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    config.setDataSourceClassName(propertyResolver.getProperty("dataSourceClassName"));
    if (propertyResolver.getProperty("url") == null || "".equals(propertyResolver.getProperty("url"))) {
        config.addDataSourceProperty("databaseName", propertyResolver.getProperty("databaseName"));
        config.addDataSourceProperty("serverName", propertyResolver.getProperty("serverName"));
    } else {
        config.addDataSourceProperty("url", propertyResolver.getProperty("url"));
    }
    config.addDataSourceProperty("user", propertyResolver.getProperty("username"));
    config.addDataSourceProperty("password", propertyResolver.getProperty("password"));

    //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration
    if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(propertyResolver.getProperty("dataSourceClassName"))) {
        config.addDataSourceProperty("cachePrepStmts", propertyResolver.getProperty("cachePrepStmts", "true"));
        config.addDataSourceProperty("prepStmtCacheSize", propertyResolver.getProperty("prepStmtCacheSize", "250"));
        config.addDataSourceProperty("prepStmtCacheSqlLimit", propertyResolver.getProperty("prepStmtCacheSqlLimit", "2048"));
        config.addDataSourceProperty("useServerPrepStmts", propertyResolver.getProperty("useServerPrepStmts", "true"));
    }
    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：spring-configuration-support    文件：SpringConfigurationSupportAutoConfiguration.java    
@Bean(name = "dataSourcePropertiesInitializer")
@ConditionalOnMissingClass({ "com.ulisesbocchio.jasyptspringboot.wrapper.EncryptablePropertySourceWrapper", "org.jasypt.encryption.StringEncryptor" })
@ConditionalOnMissingBean
public DataSourcePropertiesInitializer dataSourcePropertiesInitializer(@Named("databaseConfiguration") DaoConfigurationPropertiesFactoryBean databaseConfigFactory) {
    return new DataSourcePropertiesInitializer(databaseConfigFactory);
}
项目：nakadi-producer-spring-boot-starter    文件：NakadiProducerAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.zalando.tracer.Tracer")
@ConditionalOnMissingBean(FlowIdComponent.class)
public FlowIdComponent flowIdComponent() {
    return new NoopFlowIdComponent();
}
项目：errorest-spring-boot-starter    文件：ErrorestConfiguration.java    
@Bean
@ConditionalOnMissingBean
@ConditionalOnMissingClass({"org.springframework.security.access.AccessDeniedException", "org.springframework.security.core.AuthenticationException"})
public ErrorDataProviderContext errorDataProviderContext() {
    return new ErrorDataProviderContext(errorestProperties);
}
项目：spring-data-jest    文件：ElasticsearchJestAutoConfiguration.java    
@Bean
@ConditionalOnMissingBean(JestClient.class)
@ConditionalOnMissingClass("org.elasticsearch.node.Node")
public JestClient client() {
    return createJestClient(properties.getUri());
}
项目：Zipkin    文件：TraceWebAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.springframework.boot.actuate.autoconfigure.ManagementServerProperties")
@ConditionalOnMissingBean(SkipPatternProvider.class)
public SkipPatternProvider defaultSkipPatternBean() {
    return defaultSkipPatternProvider(this.skipPattern);
}
项目：Zipkin    文件：SleuthLogAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.slf4j.MDC")
@ConditionalOnMissingBean
public SpanLogger defaultLoggedSpansHandler() {
    return new NoOpSpanLogger();
}
项目：Zipkin    文件：TraceMetricsAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.springframework.boot.actuate.metrics.CounterService")
@ConditionalOnMissingBean(SpanMetricReporter.class)
public SpanMetricReporter noOpSpanReporterCounterService() {
    return new NoOpSpanMetricReporter();
}
项目：spring-cloud-sleuth    文件：TraceWebAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.springframework.boot.actuate.autoconfigure.ManagementServerProperties")
@ConditionalOnMissingBean(SkipPatternProvider.class)
public SkipPatternProvider defaultSkipPatternBean(SleuthWebProperties sleuthWebProperties) {
    return defaultSkipPatternProvider(sleuthWebProperties.getSkipPattern());
}
项目：spring-cloud-sleuth    文件：SleuthLogAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.slf4j.MDC")
@ConditionalOnMissingBean
public SpanLogger defaultLoggedSpansHandler() {
    return new NoOpSpanLogger();
}
项目：spring-cloud-sleuth    文件：TraceMetricsAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("io.micrometer.core.instrument.MeterRegistry")
@ConditionalOnMissingBean(SpanMetricReporter.class)
public SpanMetricReporter noOpSpanReporterCounterService() {
    return new NoOpSpanMetricReporter();
}
项目：OrcidHub    文件：DatabaseConfiguration.java    
@Bean(destroyMethod = "shutdown")
@ConditionalOnMissingClass(name = "it.cineca.pst.huborcid.config.HerokuDatabaseConfiguration")
@Profile("!" + Constants.SPRING_PROFILE_CLOUD)
public DataSource dataSource() {
    log.debug("Configuring Datasource");
    if (dataSourcePropertyResolver.getProperty("url") == null && dataSourcePropertyResolver.getProperty("databaseName") == null) {
        log.error("Your database connection pool configuration is incorrect! The application" +
                " cannot start. Please check your Spring profile, current profiles are: {}",
                Arrays.toString(env.getActiveProfiles()));

        throw new ApplicationContextException("Database connection pool is not configured correctly");
    }
    HikariConfig config = new HikariConfig();
    if(StringUtils.isEmpty(dataSourcePropertyResolver.getProperty("jndi"))){
     config.setDataSourceClassName(dataSourcePropertyResolver.getProperty("dataSourceClassName"));
     if(StringUtils.isEmpty(dataSourcePropertyResolver.getProperty("url"))) {
         config.addDataSourceProperty("databaseName", dataSourcePropertyResolver.getProperty("databaseName"));
         config.addDataSourceProperty("serverName", dataSourcePropertyResolver.getProperty("serverName"));
     } else {
         config.addDataSourceProperty("url", dataSourcePropertyResolver.getProperty("url"));
     }
     config.addDataSourceProperty("user", dataSourcePropertyResolver.getProperty("username"));
     config.addDataSourceProperty("password", dataSourcePropertyResolver.getProperty("password"));
     config.setConnectionTimeout(10000);
     config.setMaximumPoolSize(25);
    }else{
        final JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup();
        dataSourceLookup.setResourceRef(true);
        DataSource dataSourceTemp = null;
        try {
            dataSourceTemp = dataSourceLookup.getDataSource(dataSourcePropertyResolver.getProperty("jndi"));
        } catch (DataSourceLookupFailureException e) {
            log.error("DataSource not found.");
        }
        config.setDataSource(dataSourceTemp);
    }

    if (metricRegistry != null) {
        config.setMetricRegistry(metricRegistry);
    }
    return new HikariDataSource(config);
}
项目：spring-cloud-netflix    文件：RibbonAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass(value = "org.springframework.retry.support.RetryTemplate")
@ConditionalOnMissingBean
public LoadBalancedRetryPolicyFactory neverRetryPolicyFactory() {
    return new LoadBalancedRetryPolicyFactory.NeverRetryFactory();
}
项目：spring-cloud-netflix    文件：DiscoveryClientOptionalArgsConfiguration.java    
@Bean
@ConditionalOnMissingClass("com.sun.jersey.api.client.filter.ClientFilter")
@ConditionalOnMissingBean(value = AbstractDiscoveryClientOptionalArgs.class, search = SearchStrategy.CURRENT)
public RestTemplateDiscoveryClientOptionalArgs restTemplateDiscoveryClientOptionalArgs() {
    return new RestTemplateDiscoveryClientOptionalArgs();
}
项目：spring-cloud-aws    文件：MailSenderAutoConfiguration.java    
@Bean
@ConditionalOnMissingClass("org.springframework.cloud.aws.mail.simplemail.SimpleEmailServiceJavaMailSender")
public MailSender simpleMailSender(AmazonSimpleEmailService amazonSimpleEmailService) {
    return new SimpleEmailServiceMailSender(amazonSimpleEmailService);
}
项目：javers    文件：JaversSqlAutoConfiguration.java    
@Bean(name = "authorProvider")
@ConditionalOnMissingBean
@ConditionalOnMissingClass({"org.springframework.security.core.context.SecurityContextHolder"})
public AuthorProvider unknownAuthorProvider() {
    return new MockAuthorProvider();
}
项目：javers    文件：JaversMongoAutoConfiguration.java    
@Bean(name = "authorProvider")
@ConditionalOnMissingBean
@ConditionalOnMissingClass({"org.springframework.security.core.context.SecurityContextHolder"})
public AuthorProvider unknownAuthorProvider() {
    return new MockAuthorProvider();
}