XMLEncodingDetector

java.lang.Object
- org.apache.jasper.xmlparser.XMLEncodingDetector

public class XMLEncodingDetector
extends java.lang.Object

Field Summary

Fields
Modifier and Type Field and Description

static int DEFAULT_BUFFER_SIZE

static int DEFAULT_XMLDECL_BUFFER_SIZE

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_BUFFER_SIZE`
`static int`	`DEFAULT_XMLDECL_BUFFER_SIZE`

Constructor Summary

Constructors
Constructor and Description

XMLEncodingDetector()
Constructor

Constructors
Constructor and Description
`XMLEncodingDetector()` Constructor

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static java.lang.Object[]`	`getEncoding(java.lang.String fname, java.util.jar.JarFile jarFile, JspCompilationContext ctxt, ErrorDispatcher err)` Autodetects the encoding of the XML document supplied by the given input stream.
`boolean`	`isExternal()` Returns true if the current entity being scanned is external.
`int`	`peekChar()` Returns the next character on the input.
`int`	`scanChar()` Returns the next character on the input.
`boolean`	`scanData(java.lang.String delimiter, XMLStringBuffer buffer)` Scans a range of character data up to the specified delimiter, setting the fields of the XMLString structure, appropriately.
`int`	`scanLiteral(int quote, XMLString content)` Scans a range of attribute value data, setting the fields of the XMLString structure, appropriately.
`java.lang.String`	`scanName()` Returns a string matching the Name production appearing immediately on the input as a symbol, or null if no Name string is present.
`java.lang.String`	`scanPseudoAttribute(boolean scanningTextDecl, XMLString value)` Scans a pseudo attribute.
`boolean`	`skipChar(int c)` Skips a character appearing immediately on the input.
`boolean`	`skipSpaces()` Skips space characters appearing immediately on the input.
`boolean`	`skipString(java.lang.String s)` Skips the specified string appearing immediately on the input.

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

- Field Detail
  - DEFAULT_BUFFER_SIZE
```
public static final int DEFAULT_BUFFER_SIZE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_XMLDECL_BUFFER_SIZE
```
public static final int DEFAULT_XMLDECL_BUFFER_SIZE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - XMLEncodingDetector
```
public XMLEncodingDetector()
```
    Constructor
- Method Detail
  - getEncoding
```
public static java.lang.Object[] getEncoding(java.lang.String fname,
                                             java.util.jar.JarFile jarFile,
                                             JspCompilationContext ctxt,
                                             ErrorDispatcher err)
                                      throws java.io.IOException,
                                             JasperException
```
    Autodetects the encoding of the XML document supplied by the given input stream. Encoding autodetection is done according to the XML 1.0 specification, Appendix F.1: Detection Without External Encoding Information.
    
    Returns:
    
    Two-element array, where the first element (of type java.lang.String) contains the name of the (auto)detected encoding, and the second element (of type java.lang.Boolean) specifies whether the encoding was specified using the 'encoding' attribute of an XML prolog (TRUE) or autodetected (FALSE).
    
    Throws:
    
    java.io.IOException
    
    JasperException
  - isExternal
```
public boolean isExternal()
```
    Returns true if the current entity being scanned is external.
  - peekChar
```
public int peekChar()
             throws java.io.IOException
```
    Returns the next character on the input.
    Note: The character is not consumed.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - scanChar
```
public int scanChar()
             throws java.io.IOException
```
    Returns the next character on the input.
    Note: The character is consumed.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - scanName
```
public java.lang.String scanName()
                          throws java.io.IOException
```
    Returns a string matching the Name production appearing immediately on the input as a symbol, or null if no Name string is present.
    Note: The Name characters are consumed.
    Note: The string returned must be a symbol. The SymbolTable can be used for this purpose.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
    
    See Also:
    
    SymbolTable, XMLChar.isName(int), XMLChar.isNameStart(int)
  - scanLiteral
```
public int scanLiteral(int quote,
                       XMLString content)
                throws java.io.IOException
```
    Scans a range of attribute value data, setting the fields of the XMLString structure, appropriately.
    Note: The characters are consumed.
    Note: This method does not guarantee to return the longest run of attribute value data. This method may return before the quote character due to reaching the end of the input buffer or any other reason.
    Note: The fields contained in the XMLString structure are not guaranteed to remain valid upon subsequent calls to the entity scanner. Therefore, the caller is responsible for immediately using the returned character data or making a copy of the character data.
    
    Parameters:
    
    quote - The quote character that signifies the end of the attribute value data.
    
    content - The content structure to fill.
    
    Returns:
    
    Returns the next character on the input, if known. This value may be -1 but this does note designate end of file.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - scanData
```
public boolean scanData(java.lang.String delimiter,
                        XMLStringBuffer buffer)
                 throws java.io.IOException
```
    Scans a range of character data up to the specified delimiter, setting the fields of the XMLString structure, appropriately.
    Note: The characters are consumed.
    Note: This assumes that the internal buffer is at least the same size, or bigger, than the length of the delimiter and that the delimiter contains at least one character.
    Note: This method does not guarantee to return the longest run of character data. This method may return before the delimiter due to reaching the end of the input buffer or any other reason.
    Note: The fields contained in the XMLString structure are not guaranteed to remain valid upon subsequent calls to the entity scanner. Therefore, the caller is responsible for immediately using the returned character data or making a copy of the character data.
    
    Parameters:
    
    delimiter - The string that signifies the end of the character data to be scanned.
    
    buffer - The data structure to fill.
    
    Returns:
    
    Returns true if there is more data to scan, false otherwise.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - skipChar
```
public boolean skipChar(int c)
                 throws java.io.IOException
```
    Skips a character appearing immediately on the input.
    Note: The character is consumed only if it matches the specified character.
    
    Parameters:
    
    c - The character to skip.
    
    Returns:
    
    Returns true if the character was skipped.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - skipSpaces
```
public boolean skipSpaces()
                   throws java.io.IOException
```
    Skips space characters appearing immediately on the input.
    Note: The characters are consumed only if they are space characters.
    
    Returns:
    
    Returns true if at least one space character was skipped.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
    
    See Also:
    
    XMLChar.isSpace(int)
  - skipString
```
public boolean skipString(java.lang.String s)
                   throws java.io.IOException
```
    Skips the specified string appearing immediately on the input.
    Note: The characters are consumed only if they are space characters.
    
    Parameters:
    
    s - The string to skip.
    
    Returns:
    
    Returns true if the string was skipped.
    
    Throws:
    
    java.io.IOException - Thrown if i/o error occurs.
    
    java.io.EOFException - Thrown on end of file.
  - scanPseudoAttribute
```
public java.lang.String scanPseudoAttribute(boolean scanningTextDecl,
                                            XMLString value)
                                     throws java.io.IOException,
                                            JasperException
```
    Scans a pseudo attribute.
    
    Parameters:
    
    scanningTextDecl - True if scanning this pseudo-attribute for a TextDecl; false if scanning XMLDecl. This flag is needed to report the correct type of error.
    
    value - The string to fill in with the attribute value.
    
    Returns:
    
    The name of the attribute Note: This method uses fStringBuffer2, anything in it at the time of calling is lost.
    
    Throws:
    
    java.io.IOException
    
    JasperException

Class XMLEncodingDetector

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_BUFFER_SIZE

DEFAULT_XMLDECL_BUFFER_SIZE

Constructor Detail

XMLEncodingDetector

Method Detail

getEncoding

isExternal

peekChar

scanChar

scanName

scanLiteral

scanData

skipChar

skipSpaces

skipString

scanPseudoAttribute