StringUtils (all 0.15.0 API)

java.lang.Object
- io.opentelemetry.api.internal.StringUtils

```
@Immutable
public final class StringUtils
extends Object
```
Internal utility methods for working with attribute keys, attribute values, and metric names.

Field Summary

Fields
Modifier and Type Field Description

static int METRIC_NAME_MAX_LENGTH

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`isPrintableString(String str)`	Determines whether the `String` contains only printable characters.
`static boolean`	`isValidMetricName(String metricName)`	Determines whether the metric name contains a valid metric name.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - METRIC_NAME_MAX_LENGTH
```
public static final int METRIC_NAME_MAX_LENGTH
```
    See Also:
    
    Constant Field Values
- Method Detail
  - isPrintableString
```
public static boolean isPrintableString(String str)
```
    Determines whether the String contains only printable characters.
    
    Parameters:
    
    str - the String to be validated.
    
    Returns:
    
    whether the String contains only printable characters.
  - isValidMetricName
```
public static boolean isValidMetricName(String metricName)
```
    Determines whether the metric name contains a valid metric name.
    
    Parameters:
    
    metricName - the metric name to be validated.
    
    Returns:
    
    whether the metricName contains a valid name.