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java.lang.Objectorg.opensaml.xml.util.DatatypeHelper
public final class DatatypeHelper
Helper class for working with various datatypes.
Method Summary | ||
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static byte[] |
fileToByteArray(java.io.File file)
Reads the contents of a file in to a byte array. |
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static java.lang.String |
inputstreamToString(java.io.InputStream input,
java.nio.charset.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(java.lang.String s)
A "safe" null/empty check for strings. |
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static java.lang.String |
listToStringValue(java.util.List<java.lang.String> values,
java.lang.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 java.lang.String |
safeTrim(java.lang.String s)
A safe string trim that handles nulls. |
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static java.lang.String |
safeTrimOrNullString(java.lang.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 java.util.List<java.lang.String> |
stringToList(java.lang.String string,
java.lang.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(java.lang.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 java.lang.String safeTrim(java.lang.String s)
s
- the string to trim
public static java.lang.String safeTrimOrNullString(java.lang.String s)
s
- the string to trim
public static byte[] intToByteArray(int integer)
integer
- integer to convert
public static byte[] fileToByteArray(java.io.File file) throws java.io.IOException
file
- file to read
java.io.IOException
- throw if there is a problem reading the file in to the byte arraypublic static java.lang.String inputstreamToString(java.io.InputStream input, java.nio.charset.CharsetDecoder decoder) throws java.io.IOException
input
- the input stream to readdecoder
- character decoder to use, if null, system default character set is used
java.io.IOException
- thrown if there is a problem reading from the stream and decoding itpublic static java.util.List<java.lang.String> stringToList(java.lang.String string, java.lang.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 java.lang.String listToStringValue(java.util.List<java.lang.String> values, java.lang.String delimiter)
values
- list of stringsdelimiter
- the delimiter used between values
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