Java Code Examples for io.micrometer.core.instrument.util.StringUtils#truncate()

String asJson() {
    String displayName = description == null ? metricId : StringEscapeUtils.escapeJson(description);
    String body = "{\"displayName\":\"" + StringUtils.truncate(displayName, MAX_DISPLAY_NAME) + "\"";

    if (StringUtils.isNotBlank(group))
        body += ",\"group\":\"" + StringUtils.truncate(group, MAX_GROUP_NAME) + "\"";

    if (unit != null)
        body += ",\"unit\":\"" + unit + "\"";

    if (dimensions != null && !dimensions.isEmpty())
        body += ",\"dimensions\":[" + dimensions.stream()
                .map(d -> "\"" + d + "\"")
                .collect(Collectors.joining(",")) + "]";

    body += ",\"types\":[" +
            stream(technologyTypes).map(type -> "\"" + type + "\"").collect(Collectors.joining(",")) +
            "]";

    body += "}";
    return body;
}
 

@Override
public String tagKey(String key) {
    String conventionKey = delegate.tagKey(key);

    conventionKey = START_UNDERSCORE_PATTERN.matcher(conventionKey).replaceAll(""); // 2
    conventionKey = SF_PATTERN.matcher(conventionKey).replaceAll(""); // 2

    conventionKey = PATTERN_TAG_KEY_BLACKLISTED_CHARS.matcher(conventionKey).replaceAll("_");
    if (!START_LETTERS_PATTERN.matcher(conventionKey).matches()) { // 3
        conventionKey = "a" + conventionKey;
    }
    if (PATTERN_TAG_KEY_BLACKLISTED_PREFIX.matcher(conventionKey).matches()) {
        logger.log("'" + conventionKey + "' (original name: '" + key + "') is not a valid tag key. "
                + "Must not start with any of these prefixes: aws_, gcp_, or azure_. "
                + "Please rename it to conform to the constraints. "
                + "If it comes from a third party, please use MeterFilter to rename it.");
    }
    return StringUtils.truncate(conventionKey, KEY_MAX_LENGTH); // 1
}
 

@Override
public String tagKey(String key) {
    return StringUtils.truncate(delegate.tagKey(key), MAX_TAG_KEY_LENGTH);
}
 

@Override
public String tagValue(String value) {
    return StringUtils.truncate(delegate.tagValue(value), MAX_TAG_VALUE_LENGTH);
}
 

@Override
public String tagKey(String key) {
    String sanitized = TAG_KEY_BLACKLIST.matcher(delegate.tagKey(key)).replaceAll("_");
    return StringUtils.truncate(sanitized, MAX_TAG_KEY_LENGTH);
}
 

@Override
public String tagValue(String value) {
    String sanitized = TAG_VALUE_BLACKLIST.matcher(delegate.tagValue(value)).replaceAll("_");
    return StringUtils.truncate(sanitized, MAX_TAG_VALUE_LENGTH);
}
 

@Override
public String tagValue(String value) {
    String formattedValue = StringEscapeUtils.escapeJson(delegate.tagValue(value));
    return StringUtils.truncate(formattedValue, TAG_VALUE_MAX_LENGTH);
}
 

@Override
public String tagKey(String key) {
    return StringUtils.truncate(delegate.tagKey(key), MAX_TAG_KEY_LENGTH);
}
 

@Override
public String tagValue(String value) {
    return StringUtils.truncate(delegate.tagValue(value), MAX_TAG_VALUE_LENGTH);
}
 

private String sanitize(String value, Pattern blacklist, int maxLength) {
    return StringUtils.truncate(blacklist.matcher(value).replaceAll("_"), maxLength);
}
 

@Override
public String tagValue(String value) {
    return StringUtils.truncate(value, MAX_TAG_VALUE_LENGTH);
}