java.lang.Object
- org.apache.qpid.server.util.Strings

public final class Strings
extends Object

String utilities

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`Strings.ChainedResolver`	Chains two resolvers trying to resolve variable against first one and if unsuccessful against second one
`static class`	`Strings.MapResolver`	Resolves variable from a map.
`static interface`	`Strings.Resolver`	Resolver variable using supplied resolver

Field Summary

Fields
Modifier and Type	Field	Description
`static Strings.Resolver`	`ENV_VARS_RESOLVER`	Environment variable resolver
`static Strings.Resolver`	`JAVA_SYS_PROPS_RESOLVER`	System property resolver
`static Strings.Resolver`	`SYSTEM_RESOLVER`	System resolver chaining environment variable and system property resolvers

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Strings.Resolver`	`chain(Strings.Resolver... resolvers)`	Chains several resolvers into a ChainedResolver instance
`static void`	`clearByteArray(byte[]... bytes)`	Fills byte arrays with blank characters
`static Strings.Resolver`	`createSubstitutionResolver(String prefix, Map<String,String> substitutions)`	Creates substitution resolver
`static byte[]`	`decodeBase64(String base64String)`	Decodes base64 encoded string into a byte array
`static byte[]`	`decodeCharArray(char[] base64Chars, String description)`	Decodes base64 encoded char array into a byte array
`static byte[]`	`decodePrivateBase64(String base64String, String description)`	Decodes base64 encoded string into a byte array
`static String`	`expand(String input, boolean failOnUnresolved, Strings.Resolver... resolvers)`	Expands string replacing variables it contains with variable values
`static String`	`expand(String input, Strings.Resolver resolver)`	Expands string replacing variables it contains with variable values
`static String`	`hexDump(ByteBuffer buf)`	Dumps bytes in the textual format used by UNIX od(1) in hex (x4) mode i.e.
`static String`	`join(String sep, Iterable<?> items)`	Joins string representation of an object iterable
`static String`	`join(String sep, Object[] items)`	Joins string representation of an object array
`static List<String>`	`split(String listAsString)`	Splits source string into a liast of tokens separated by comma
`static ClearableCharSequence`	`toCharSequence(Object object)`	Converts an object to the ClearableCharSequence
`static byte[]`	`toUTF8(String str)`	Converts string to the UTF8 encoded byte array

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

- Field Detail
  - ENV_VARS_RESOLVER
```
public static final Strings.Resolver ENV_VARS_RESOLVER
```
    Environment variable resolver
  - JAVA_SYS_PROPS_RESOLVER
```
public static final Strings.Resolver JAVA_SYS_PROPS_RESOLVER
```
    System property resolver
  - SYSTEM_RESOLVER
```
public static final Strings.Resolver SYSTEM_RESOLVER
```
    System resolver chaining environment variable and system property resolvers
- Method Detail
  - chain
```
public static Strings.Resolver chain(Strings.Resolver... resolvers)
```
    Chains several resolvers into a ChainedResolver instance
    
    Parameters:
    
    resolvers - Resolvers to be chained
    
    Returns:
    
    Resulting ChainedResolver
  - toUTF8
```
public static byte[] toUTF8(String str)
```
    Converts string to the UTF8 encoded byte array
    
    Parameters:
    
    str - Source string
    
    Returns:
    
    Byte array
  - decodePrivateBase64
```
public static byte[] decodePrivateBase64(String base64String,
                                         String description)
```
    Decodes base64 encoded string into a byte array
    
    Parameters:
    
    base64String - Base64 encoded string
    
    description - String description provided for logging purposes
    
    Returns:
    
    Resulting byte array
  - decodeCharArray
```
public static byte[] decodeCharArray(char[] base64Chars,
                                     String description)
```
    Decodes base64 encoded char array into a byte array
    
    Parameters:
    
    base64Chars - Base64 encoded char array
    
    description - String description provided for logging purposes
    
    Returns:
    
    Resulting byte array
  - clearByteArray
```
public static void clearByteArray(byte[]... bytes)
```
    Fills byte arrays with blank characters
    
    Parameters:
    
    bytes - Byte arrays to be cleared
  - toCharSequence
```
public static ClearableCharSequence toCharSequence(Object object)
```
    Converts an object to the ClearableCharSequence
    
    Parameters:
    
    object - Object to convert
    
    Returns:
    
    ClearableCharSequence instance
  - decodeBase64
```
public static byte[] decodeBase64(String base64String)
```
    Decodes base64 encoded string into a byte array
    
    Parameters:
    
    base64String - Base64 encoded string
    
    Returns:
    
    Resulting byte array
  - expand
```
public static String expand(String input,
                            Strings.Resolver resolver)
```
    Expands string replacing variables it contains with variable values
    
    Parameters:
    
    input - Source string
    
    resolver - Resolver to use
    
    Returns:
    
    Expanded string
  - expand
```
public static String expand(String input,
                            boolean failOnUnresolved,
                            Strings.Resolver... resolvers)
```
    Expands string replacing variables it contains with variable values
    
    Parameters:
    
    input - Source string
    
    failOnUnresolved - Boolean flag defining if an exception should be thrown in case of failed resolution
    
    resolvers - Resolvers to use
    
    Returns:
    
    Expanded string
  - join
```
public static String join(String sep,
                          Iterable<?> items)
```
    Joins string representation of an object iterable
    
    Parameters:
    
    sep - Separator
    
    items - Object iterable
    
    Returns:
    
    Resulting string
  - join
```
public static String join(String sep,
                          Object[] items)
```
    Joins string representation of an object array
    
    Parameters:
    
    sep - Separator
    
    items - Object array
    
    Returns:
    
    Resulting string
  - split
```
public static List<String> split(String listAsString)
```
    Splits source string into a liast of tokens separated by comma
    
    Parameters:
    
    listAsString - Source string
    
    Returns:
    
    List of tokens
  - hexDump
```
public static String hexDump(ByteBuffer buf)
```
    Dumps bytes in the textual format used by UNIX od(1) in hex (x4) mode i.e. od -Ax -tx1 -v. This format is understood by Wireshark "Import from HexDump" feature so is useful for dumping buffers containing AMQP 1.0 byte-streams for diagnostic purposes.
    
    Parameters:
    
    buf - - buffer to be dumped. Buffer will be unchanged.
  - createSubstitutionResolver
```
public static Strings.Resolver createSubstitutionResolver(String prefix,
                                                          Map<String,String> substitutions)
```
    Creates substitution resolver
    
    Parameters:
    
    prefix - Substitution prefix
    
    substitutions - Map of substituitions
    
    Returns:
    
    StringSubstitutionResolver

Class Strings

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ENV_VARS_RESOLVER

JAVA_SYS_PROPS_RESOLVER

SYSTEM_RESOLVER

Method Detail

chain

toUTF8

decodePrivateBase64

decodeCharArray

clearByteArray

toCharSequence

decodeBase64

expand

expand

join

join

split

hexDump

createSubstitutionResolver