org.apache.logging.log4j.util.Strings类的使用及代码示例
本文整理了Java中org.apache.logging.log4j.util.Strings类的一些代码示例，展示了Strings类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Strings类的具体详情如下：
包路径：org.apache.logging.log4j.util.Strings
类名称：Strings
Strings介绍
[英]Consider this class private.
[中]把这门课当作私人课
代码示例
代码示例来源：origin: org.apache.logging.log4j/log4j-api
/**
* <p>
* Checks if a CharSequence is not empty ("") and not null.
* </p>
*
* <pre>
* Strings.isNotEmpty(null) = false
* Strings.isNotEmpty("") = false
* Strings.isNotEmpty(" ") = true
* Strings.isNotEmpty("bob") = true
* Strings.isNotEmpty(" bob ") = true
* </pre>
*
* <p>
* Copied from Apache Commons Lang org.apache.commons.lang3.StringUtils.isNotEmpty(CharSequence)
* </p>
*
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is not empty and not null
*/
public static boolean isNotEmpty(final CharSequence cs) {
return !isEmpty(cs);
}代码示例来源：origin: org.apache.logging.log4j/log4j-api
/**
* Checks if a String is not blank. The opposite of {@link #isBlank(String)}.
*
* @param s the String to check, may be {@code null}
* @return {@code true} if the String is non-{@code null} and has content after being trimmed.
*/
public static boolean isNotBlank(final String s) {
return !isBlank(s);
}代码示例来源：origin: org.apache.logging.log4j/log4j-api
if (Strings.isNotEmpty(logName)) {
sb.append(logName);
sb.append(SPACE);代码示例来源：origin: ops4j/org.ops4j.pax.logging
/**
* Factory method for creating a connection source within the plugin manager.
*
* @param jndiName The full JNDI path where the data source is bound. Should start with java:/comp/env or
* environment-equivalent.
* @return the created connection source.
*/
@PluginFactory
public static DataSourceConnectionSource createConnectionSource(@PluginAttribute("jndiName") final String jndiName) {
if (Strings.isEmpty(jndiName)) {
LOGGER.error("No JNDI name provided.");
return null;
}
try {
final InitialContext context = new InitialContext();
final DataSource dataSource = (DataSource) context.lookup(jndiName);
if (dataSource == null) {
LOGGER.error("No data source found with JNDI name [" + jndiName + "].");
return null;
}
return new DataSourceConnectionSource(jndiName, dataSource);
} catch (final NamingException e) {
LOGGER.error(e.getMessage(), e);
return null;
}
}
}代码示例来源：origin: ops4j/org.ops4j.pax.logging
@Override
public ColumnConfig build() {
if (Strings.isEmpty(name)) {
LOGGER.error("The column config is not valid because it does not contain a column name.");
return null;
final boolean isPattern = Strings.isNotEmpty(pattern);
final boolean isLiteralValue = Strings.isNotEmpty(literal);
LOGGER.error("The pattern, literal, and isEventTimestamp attributes are mutually exclusive.");
return null;
LOGGER.error("To configure a column you must specify a pattern or literal or set isEventDate to true.");
return null;代码示例来源：origin: org.apache.logging.log4j/log4j-web
@Override
public void contextDestroyed(final ServletContextEvent event) {
if (this.servletContext == null || this.initializer == null) {
LOGGER.warn("Context destroyed before it was initialized.");
return;
}
LOGGER.debug("Log4jServletContextListener ensuring that Log4j shuts down properly.");
this.initializer.clearLoggerContext(); // the application is finished
// shutting down now
if (initializer instanceof LifeCycle2) {
final String stopTimeoutStr = servletContext.getInitParameter(KEY_STOP_TIMEOUT);
final long stopTimeout = Strings.isEmpty(stopTimeoutStr) ? DEFAULT_STOP_TIMEOUT
: Long.parseLong(stopTimeoutStr);
final String timeoutTimeUnitStr = servletContext.getInitParameter(KEY_STOP_TIMEOUT_TIMEUNIT);
final TimeUnit timeoutTimeUnit = Strings.isEmpty(timeoutTimeUnitStr) ? DEFAULT_STOP_TIMEOUT_TIMEUNIT
: TimeUnit.valueOf(timeoutTimeUnitStr.toUpperCase(Locale.ROOT));
((LifeCycle2) this.initializer).stop(stopTimeout, timeoutTimeUnit);
} else {
this.initializer.stop();
}
}
}代码示例来源：origin: FlowCI/flow-platform
@Override
public void exec(Plugin plugin) {
log.trace("Push tags to local");
if (!Strings.isBlank(plugin.getPluginDetail().getImage()) && !Strings
.isBlank(plugin.getPluginDetail().getBuild())) {
return;
}
try {
// put from cache to local git workspace
Path cachePath = gitCachePath(plugin);
String latestGitTag = plugin.getTag();
JGitUtil.push(cachePath, LOCAL_REMOTE, latestGitTag);
// set currentTag latestTag
plugin.setCurrentTag(latestGitTag);
updatePluginStatus(plugin, INSTALLED);
} catch (GitException e) {
log.error("Git Push", e);
throw new PluginException("Git Push", e);
}
}代码示例来源：origin: ops4j/org.ops4j.pax.logging
@Override
public PosixViewAttributeAction build() {
if (Strings.isEmpty(basePath)) {
LOGGER.error("Posix file attribute view action not valid because base path is empty.");
return null;
}
if (filePermissions == null && Strings.isEmpty(filePermissionsString)
&& Strings.isEmpty(fileOwner) && Strings.isEmpty(fileGroup)) {
LOGGER.error("Posix file attribute view not valid because nor permissions, user or group defined.");
return null;
}
if (!FileUtils.isFilePosixAttributeViewSupported()) {
LOGGER.warn("Posix file attribute view defined but it is not supported by this files system.");
return null;
}
return new PosixViewAttributeAction(basePath, followLinks, maxDepth, pathConditions,
subst != null ? subst : configuration.getStrSubstitutor(),
filePermissions != null ? filePermissions :
filePermissionsString != null ? PosixFilePermissions.fromString(filePermissionsString) : null,
fileOwner,
fileGroup);
}代码示例来源：origin: apache/hive
@PluginFactory
public static LlapWrappedAppender createAppender(
@PluginAttribute("name") final String name, // This isn't really used for anything.
@PluginAttribute("renameFileOnClose") final String renameFileOnCloseProvided,
@PluginAttribute("renamedFileSuffix") final String renamedFileSuffixProvided,
@PluginNode final Node node,
@PluginConfiguration final Configuration config
) {
if (config == null) {
LOGGER.error("PluginConfiguration not expected to be null");
return null;
}
if (node == null) {
LOGGER.error("Node must be specified as an appender specification");
return null;
}
boolean renameFileOnClose = DEFAULT_RENAME_FILES_ON_CLOSE;
if (Strings.isNotBlank(renameFileOnCloseProvided)) {
renameFileOnClose = Boolean.parseBoolean(renameFileOnCloseProvided);
}
String renamedFileSuffix = DEFAULT_RENAMED_FILE_SUFFIX;
if (Strings.isNotBlank(renamedFileSuffixProvided)) {
renamedFileSuffix = renamedFileSuffixProvided;
}
return new LlapWrappedAppender(name, node, config, renameFileOnClose, renamedFileSuffix);
}代码示例来源：origin: ops4j/org.ops4j.pax.logging
@Override
public Object visit(final Configuration configuration, final Node node, final LogEvent event,
final StringBuilder log) {
final String name = this.annotation.value();
final String elementValue = node.getValue();
final String attributeValue = node.getAttributes().get("value");
String rawValue = null; // if neither is specified, return null (LOG4J2-1313)
if (Strings.isNotEmpty(elementValue)) {
if (Strings.isNotEmpty(attributeValue)) {
LOGGER.error("Configuration contains {} with both attribute value ({}) AND element" +
" value ({}). Please specify only one value. Using the element value.",
node.getName(), attributeValue, elementValue);
}
rawValue = elementValue;
} else {
rawValue = removeAttributeValue(node.getAttributes(), "value");
}
final String value = this.substitutor.replace(event, rawValue);
StringBuilders.appendKeyDqValue(log, name, value);
return value;
}
}代码示例来源：origin: PegaSysEng/pantheon
/** Logs the Peer connections for each node. */
public void logPeerConnections() {
final List<String> connStr = new ArrayList<>();
for (final TestNode node : nodes) {
for (final PeerConnection peer : node.network.getPeers()) {
final String localString = node.shortId() + "@" + peer.getLocalAddress();
final String peerString =
shortId(peer.getPeer().getNodeId()) + "@" + peer.getRemoteAddress();
connStr.add("Connection: " + localString + " to " + peerString);
}
}
LOG.info("TestNodeList Connections:\n" + join(connStr, '\n'));
}代码示例来源：origin: ops4j/org.ops4j.pax.logging
if (Strings.isBlank(pkg)) {
final DecimalFormat numFormat = new DecimalFormat("#0.000000");
final double seconds = (endTime - startTime) * 1e-9;
LOGGER.debug("Took {} seconds to load {} plugins from package {}",
numFormat.format(seconds), resolver.getClasses().size(), pkg);代码示例来源：origin: ops4j/org.ops4j.pax.logging
if ("endpoint".equalsIgnoreCase(property.getName())) {
final String value = property.getValue();
if (Strings.isNotEmpty(value)) {
endpoints.add(value);
LOGGER.debug("Creating JeroMqAppender with name={}, filter={}, layout={}, ignoreExceptions={}, endpoints={}",
name, filter, layout, ignoreExceptions, endpoints);
return new JeroMqAppender(name, filter, layout, ignoreExceptions, endpoints, affinity, backlog,代码示例来源：origin: ops4j/org.ops4j.pax.logging
private Configuration getConfiguration(final LoggerContext loggerContext, final boolean isTest, final String name) {
final boolean named = Strings.isNotEmpty(name);
final ClassLoader loader = LoaderUtil.getThreadContextClassLoader();
for (final ConfigurationFactory factory : getFactories()) {
String configName;
final String prefix = isTest ? TEST_PREFIX : DEFAULT_PREFIX;
final String [] types = factory.getSupportedTypes();
if (types == null) {
continue;
}
for (final String suffix : types) {
if (suffix.equals(ALL_TYPES)) {
continue;
}
configName = named ? prefix + name + suffix : prefix + suffix;
final ConfigurationSource source = ConfigurationSource.fromResource(configName, loader);
if (source != null) {
if (!factory.isActive()) {
LOGGER.warn("Found configuration file {} for inactive ConfigurationFactory {}", configName, factory.getClass().getName());
}
return factory.getConfiguration(loggerContext, source);
}
}
}
return null;
}代码示例来源：origin: io.toast-tk/toast-tk-dao
@Override
public void setId(String id) {
this.id = Strings.isBlank(id) || Strings.isEmpty(id) ? null : new ObjectId(id);
}代码示例来源：origin: ops4j/org.ops4j.pax.logging
private AppenderRefComponentBuilder createAppenderRef(final String key, final Properties properties) {
final String ref = (String) properties.remove("ref");
if (Strings.isEmpty(ref)) {
throw new ConfigurationException("No ref attribute provided for AppenderRef " + key);
}
final AppenderRefComponentBuilder appenderRefBuilder = builder.newAppenderRef(ref);
final String level = Strings.trimToNull((String) properties.remove("level"));
if (!Strings.isEmpty(level)) {
appenderRefBuilder.addAttribute("level", level);
}
return addFiltersToComponent(appenderRefBuilder, properties);
}代码示例来源：origin: org.apache.logging.log4j/log4j-api
/**
* <p>Joins the elements of the provided {@code Iterable} into
* a single String containing the provided elements.</p>
*
* <p>No delimiter is added before or after the list. Null objects or empty
* strings within the iteration are represented by empty strings.</p>
*
* @param iterable the {@code Iterable} providing the values to join together, may be null
* @param separator the separator character to use
* @return the joined String, {@code null} if null iterator input
*/
public static String join(final Iterable<?> iterable, final char separator) {
if (iterable == null) {
return null;
}
return join(iterable.iterator(), separator);
}代码示例来源：origin: apache/phoenix
if (isLocalFs) {
String buildDir = System.getProperty(BUILD_DIR_PROPERTY);
Preconditions.checkState(Strings.isNotBlank(buildDir));
Path path = new Path(fsUriString, buildDir);代码示例来源：origin: org.apache.logging.log4j/log4j-api
/**
* A Constructor that helps conformance to RFC 5424.
*
* @param name The name portion of the id.
* @param enterpriseNumber The enterprise number.
* @param required The list of keys that are required for this id.
* @param optional The list of keys that are optional for this id.
* @param maxLength The maximum length of the StructuredData Id key.
* @since 2.9
*/
public StructuredDataId(final String name, final int enterpriseNumber, final String[] required,
final String[] optional, final int maxLength) {
if (name == null) {
throw new IllegalArgumentException("No structured id name was supplied");
}
if (name.contains(AT_SIGN)) {
throw new IllegalArgumentException("Structured id name cannot contain an " + Strings.quote(AT_SIGN));
}
if (enterpriseNumber <= 0) {
throw new IllegalArgumentException("No enterprise number was supplied");
}
this.name = name;
this.enterpriseNumber = enterpriseNumber;
final String id = name + AT_SIGN + enterpriseNumber;
if (maxLength > 0 && id.length() > maxLength) {
throw new IllegalArgumentException("Length of id exceeds maximum of " + maxLength + " characters: " + id);
}
this.required = required;
this.optional = optional;
}代码示例来源：origin: biz.paluch.logging/logstash-gelf
@PluginFactory
public static GelfDynamicMdcLogFields createField(@PluginConfiguration final Configuration config,
@PluginAttribute("regex") String regex) {
if (Strings.isEmpty(regex)) {
LOGGER.error("The regex is empty");
return null;
}
return new GelfDynamicMdcLogFields(regex);
}
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