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java.lang.Object org.opensaml.xml.util.DatatypeHelper
public final class DatatypeHelper
Helper class for working with various datatypes.
Method Summary | ||
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static byte[] |
fileToByteArray(File file)
Reads the contents of a file in to a byte array. |
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static String |
inputstreamToString(InputStream input,
CharsetDecoder decoder)
Reads an input stream into a string. |
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static byte[] |
intToByteArray(int integer)
Converts an integer into an unsigned 4-byte array. |
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static boolean |
isEmpty(String s)
A "safe" null/empty check for strings. |
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static String |
listToStringValue(List<String> values,
String delimiter)
Converts a List of strings into a single string, with values separated by a specified delimiter. |
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static
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safeEquals(T s1,
T s2)
Compares two strings for equality, allowing for nulls. |
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static String |
safeTrim(String s)
A safe string trim that handles nulls. |
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static String |
safeTrimOrNullString(String s)
Removes preceeding or proceeding whitespace from a string or return null if the string is null or of zero length after trimming (i.e. |
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static List<String> |
stringToList(String string,
String delimiter)
Converts a delimited string into a list. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static boolean isEmpty(String s)
s
- The string to check
public static <T> boolean safeEquals(T s1, T s2)
T
- type of object to compares1
- The first operands2
- The second operand
public static String safeTrim(String s)
s
- the string to trim
public static String safeTrimOrNullString(String s)
s
- the string to trim
public static byte[] intToByteArray(int integer)
integer
- integer to convert
public static byte[] fileToByteArray(File file) throws IOException
file
- file to read
IOException
- throw if there is a problem reading the file in to the byte arraypublic static String inputstreamToString(InputStream input, CharsetDecoder decoder) throws IOException
input
- the input stream to readdecoder
- character decoder to use, if null, system default character set is used
IOException
- thrown if there is a problem reading from the stream and decoding itpublic static List<String> stringToList(String string, String delimiter)
string
- the string to be split into a listdelimiter
- the delimiter between values. This string may contain
multiple delimiter characters, as allowed by
StringTokenizer
public static String listToStringValue(List<String> values, String delimiter)
values
- list of stringsdelimiter
- the delimiter used between values
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