Module org.sejda.sambox

Package org.sejda.sambox.util

Class SpecVersionUtils

java.lang.Object

org.sejda.sambox.util.SpecVersionUtils

public class SpecVersionUtils
extends Object

Utility class with pdf spec versions related methods and constants

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
static final String	PDF_HEADER
static final String	V1_0
static final String	V1_1
static final String	V1_2
static final String	V1_3
static final String	V1_4
static final String	V1_5
static final String	V1_6
static final String	V1_7
static final String	V2_0
private static final Pattern	VERSION_PATTERN

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SpecVersionUtils()

Method Summary

Modifier and Type	Method	Description
static boolean	isAtLeast(String version, String atLeast)
static String	parseHeaderString(String header)	Parses a conforming file header string or returning the version (ex.
private static String	sanitizeVersion(String version)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOG

private static final org.slf4j.Logger LOG

PDF_HEADER

public static final String PDF_HEADER

See Also:

• Constant Field Values

V1_0

public static final String V1_0

See Also:

• Constant Field Values

V1_1

public static final String V1_1

See Also:

• Constant Field Values

V1_2

public static final String V1_2

See Also:

• Constant Field Values

V1_3

public static final String V1_3

See Also:

• Constant Field Values

V1_4

public static final String V1_4

See Also:

• Constant Field Values

V1_5

public static final String V1_5

See Also:

• Constant Field Values

V1_6

public static final String V1_6

See Also:

• Constant Field Values

V1_7

public static final String V1_7

See Also:

• Constant Field Values

V2_0

public static final String V2_0

See Also:

• Constant Field Values

VERSION_PATTERN

private static final Pattern VERSION_PATTERN

Constructor Details

SpecVersionUtils

private SpecVersionUtils()

Method Details

parseHeaderString

public static String parseHeaderString(String header)

Parses a conforming file header string or returning the version (ex. "1.4") found. File header is defined in Chap 7.5.2 of PDF 32000-1:2008

Parameters:

header -

Returns:

the parsed version (ex. "1.4")

Throws:

IOException - if the string is not a valid header

sanitizeVersion

private static String sanitizeVersion(String version)

isAtLeast

public static boolean isAtLeast(String version,
 String atLeast)

Parameters:

version - the version to compare

atLeast - min version to return true (ex. "1.5")

Returns:

true if the given pdf spec version is at least as high as the given atLeast version