MessageBytes (Apache Tomcat 9.0.0.M9 API Documentation)

java.lang.Object
- org.apache.tomcat.util.buf.MessageBytes

All Implemented Interfaces:

Serializable, Cloneable
```
public final class MessageBytes
extends Object
implements Cloneable, Serializable
```
This class is used to represent a subarray of bytes in an HTTP message. It represents all request/response elements. The byte/char conversions are delayed and cached. Everything is recyclable. The object can represent a byte[], a char[], or a (sub) String. All operations can be made in case sensitive mode or not.

Author:

dac@eng.sun.com, James Todd [gonzo@eng.sun.com], Costin Manolache

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`T_BYTES` getType() is T_BYTES if the the object used to create the MessageBytes was a byte[]
`static int`	`T_CHARS` getType() is T_CHARS if the the object used to create the MessageBytes was a char[]
`static int`	`T_NULL`
`static int`	`T_STR` getType() is T_STR if the the object used to create the MessageBytes was a String

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`duplicate(MessageBytes src)` Copy the src into this MessageBytes, allocating more space if needed.
`boolean`	`equals(MessageBytes mb)`
`boolean`	`equals(Object obj)`
`boolean`	`equals(String s)` Compares the message bytes to the specified String object.
`boolean`	`equalsIgnoreCase(String s)` Compares the message bytes to the specified String object.
`ByteChunk`	`getByteChunk()` Returns the byte chunk, representing the byte[] and offset/length.
`CharChunk`	`getCharChunk()` Returns the char chunk, representing the char[] and offset/length.
`Charset`	`getCharset()`
`int`	`getLength()` Returns the length of the original buffer.
`long`	`getLong()` Convert the buffer to an long, cache the value.
`String`	`getString()` Returns the string value.
`int`	`getType()` Return the type of the original content.
`int`	`hashCode()`
`int`	`indexOf(String s)`
`int`	`indexOf(String s, int starting)`
`int`	`indexOfIgnoreCase(String s, int starting)`
`boolean`	`isNull()`
`static MessageBytes`	`newInstance()` Construct a new MessageBytes instance.
`void`	`recycle()` Resets the message bytes to an uninitialized (NULL) state.
`void`	`setBytes(byte[] b, int off, int len)` Sets the content to the specified subarray of bytes.
`void`	`setChars(char[] c, int off, int len)` Sets the content to be a char[]
`void`	`setCharset(Charset charset)` Set the Charset used for string<->byte conversions.
`void`	`setLong(long l)` Set the buffer to the representation of an long.
`void`	`setString(String s)` Set the content to be a string
`boolean`	`startsWithIgnoreCase(String s, int pos)`
`void`	`toBytes()` Do a char->byte conversion.
`void`	`toChars()` Convert to char[] and fill the CharChunk.
`String`	`toString()` Compute the string value.

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

- Field Detail
  - T_NULL
```
public static final int T_NULL
```
    See Also:
    
    Constant Field Values
  - T_STR
```
public static final int T_STR
```
    getType() is T_STR if the the object used to create the MessageBytes was a String
    
    See Also:
    
    Constant Field Values
  - T_BYTES
```
public static final int T_BYTES
```
    getType() is T_BYTES if the the object used to create the MessageBytes was a byte[]
    
    See Also:
    
    Constant Field Values
  - T_CHARS
```
public static final int T_CHARS
```
    getType() is T_CHARS if the the object used to create the MessageBytes was a char[]
    
    See Also:
    
    Constant Field Values
- Method Detail
  - newInstance
```
public static MessageBytes newInstance()
```
    Construct a new MessageBytes instance.
    
    Returns:
    
    the instance
  - isNull
```
public boolean isNull()
```
  - recycle
```
public void recycle()
```
    Resets the message bytes to an uninitialized (NULL) state.
  - setBytes
```
public void setBytes(byte[] b,
                     int off,
                     int len)
```
    Sets the content to the specified subarray of bytes.
    
    Parameters:
    
    b - the bytes
    
    off - the start offset of the bytes
    
    len - the length of the bytes
  - setChars
```
public void setChars(char[] c,
                     int off,
                     int len)
```
    Sets the content to be a char[]
    
    Parameters:
    
    c - the chars
    
    off - the start offset of the chars
    
    len - the length of the chars
  - setString
```
public void setString(String s)
```
    Set the content to be a string
    
    Parameters:
    
    s - The string
  - toString
```
public String toString()
```
    Compute the string value.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    the string
  - getType
```
public int getType()
```
    Return the type of the original content. Can be T_STR, T_BYTES, T_CHARS or T_NULL
    
    Returns:
    
    the type
  - getByteChunk
```
public ByteChunk getByteChunk()
```
    Returns the byte chunk, representing the byte[] and offset/length. Valid only if T_BYTES or after a conversion was made.
    
    Returns:
    
    the byte chunk
  - getCharChunk
```
public CharChunk getCharChunk()
```
    Returns the char chunk, representing the char[] and offset/length. Valid only if T_CHARS or after a conversion was made.
    
    Returns:
    
    the char chunk
  - getString
```
public String getString()
```
    Returns the string value. Valid only if T_STR or after a conversion was made.
    
    Returns:
    
    the string
  - getCharset
```
public Charset getCharset()
```
    Returns:
    
    the Charset used for string<->byte conversions.
  - setCharset
```
public void setCharset(Charset charset)
```
    Set the Charset used for string<->byte conversions.
    
    Parameters:
    
    charset - The charset
  - toBytes
```
public void toBytes()
```
    Do a char->byte conversion.
  - toChars
```
public void toChars()
```
    Convert to char[] and fill the CharChunk. XXX Not optimized - it converts to String first.
  - getLength
```
public int getLength()
```
    Returns the length of the original buffer. Note that the length in bytes may be different from the length in chars.
    
    Returns:
    
    the length
  - equals
```
public boolean equals(String s)
```
    Compares the message bytes to the specified String object.
    
    Parameters:
    
    s - the String to compare
    
    Returns:
    
    true if the comparison succeeded, false otherwise
  - equalsIgnoreCase
```
public boolean equalsIgnoreCase(String s)
```
    Compares the message bytes to the specified String object.
    
    Parameters:
    
    s - the String to compare
    
    Returns:
    
    true if the comparison succeeded, false otherwise
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - equals
```
public boolean equals(MessageBytes mb)
```
  - startsWithIgnoreCase
```
public boolean startsWithIgnoreCase(String s,
                                    int pos)
```
    Parameters:
    
    s - the string
    
    pos - The start position
    
    Returns:
    
    true if the message bytes starts with the specified string.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - indexOf
```
public int indexOf(String s,
                   int starting)
```
  - indexOf
```
public int indexOf(String s)
```
  - indexOfIgnoreCase
```
public int indexOfIgnoreCase(String s,
                             int starting)
```
  - duplicate
```
public void duplicate(MessageBytes src)
               throws IOException
```
    Copy the src into this MessageBytes, allocating more space if needed.
    
    Parameters:
    
    src - The source
    
    Throws:
    
    IOException - Writing overflow data to the output channel failed
  - setLong
```
public void setLong(long l)
```
    Set the buffer to the representation of an long.
    
    Parameters:
    
    l - The long
  - getLong
```
public long getLong()
```
    Convert the buffer to an long, cache the value.
    
    Returns:
    
    the long value

Class MessageBytes

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

T_NULL

T_STR

T_BYTES

T_CHARS

Method Detail

newInstance

isNull

recycle

setBytes

setChars

setString

toString

getType

getByteChunk

getCharChunk

getString

getCharset

setCharset

toBytes

toChars

getLength

equals

equalsIgnoreCase

equals

equals

startsWithIgnoreCase

hashCode

indexOf

indexOf

indexOfIgnoreCase

duplicate

setLong

getLong