@Test
public void testTrimTrailingWhitespace() throws Exception {
assertEquals(null, StringUtils.trimTrailingWhitespace(null));
assertEquals("", StringUtils.trimTrailingWhitespace(""));
assertEquals("", StringUtils.trimTrailingWhitespace(" "));
assertEquals("", StringUtils.trimTrailingWhitespace("\t"));
assertEquals("a", StringUtils.trimTrailingWhitespace("a "));
assertEquals(" a", StringUtils.trimTrailingWhitespace(" a"));
assertEquals(" a", StringUtils.trimTrailingWhitespace(" a "));
assertEquals(" a b", StringUtils.trimTrailingWhitespace(" a b "));
assertEquals(" a b c", StringUtils.trimTrailingWhitespace(" a b c "));
}
/**
* Loads this properties data from this string.
*
* @param propertiesData The string containing the properties data.
* @return The matching properties object.
* @throws IOException when the data could not be read.
*/
public static Properties loadPropertiesFromString(String propertiesData) throws IOException {
Properties properties = new Properties();
BufferedReader in = new BufferedReader(new StringReader(propertiesData));
while (true) {
String line = in.readLine();
if (line == null) {
return properties;
}
line = StringUtils.trimLeadingWhitespace(line);
if (line.length() > 0) {
char firstChar = line.charAt(0);
if (firstChar != '#' && firstChar != '!') {
while (endsWithContinuationMarker(line)) {
String nextLine = in.readLine();
line = line.substring(0, line.length() - 1);
if (nextLine != null) {
line += StringUtils.trimLeadingWhitespace(nextLine);
}
}
int separatorIndex = line.indexOf("=");
if (separatorIndex == -1) {
separatorIndex = line.indexOf(":");
}
String key = (separatorIndex != -1 ? line.substring(0, separatorIndex) : line);
String value = (separatorIndex != -1) ? line.substring(separatorIndex + 1) : "";
key = StringUtils.trimTrailingWhitespace(key);
value = StringUtils.trimLeadingWhitespace(value);
properties.put(unescape(key), unescape(value));
}
}
}
}
/** * load input and close input */
private static Properties load(InputStream in, String exceptionMsg) {
Properties prop = new Properties();
try {
prop.load(in);
Object value;
for (Entry<Object, Object> en : prop.entrySet()) {
value = en.getValue();
if (value instanceof String) {
if (StringUtils.containsWhitespace((CharSequence) value)) {
// trim shitespace
prop.put(en.getKey(), StringUtils.trimTrailingWhitespace((String) value));
}
}
}
} catch (IOException e) {
throw new RuntimeException(exceptionMsg);
} finally {
try {
in.close();
} catch (IOException e) {
}
}
return prop;
}
