本文整理汇总了Java中org.apache.hadoop.io.UTF8.getCharArray方法的典型用法代码示例。如果您正苦于以下问题：Java UTF8.getCharArray方法的具体用法？Java UTF8.getCharArray怎么用？Java UTF8.getCharArray使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.io.UTF8的用法示例。
在下文中一共展示了UTF8.getCharArray方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: isValidUserName
import org.apache.hadoop.io.UTF8; //导入方法依赖的package包/类
@Override
public boolean isValidUserName(String username) {
if (username == null || username.length() == 0)
return false;
int len = username.length();
char[] carray = UTF8.getCharArray(len);
username.getChars(0, len, carray, 0);
char fc = carray[0];
if (!((fc >= 'a' && fc <= 'z') || fc == '_')) {
return false;
}
for (int i = 1; i < len; i++) {
char c = carray[i];
if (!((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '-'
|| c == '_' || (c == '$' && i == len - 1))) {
return false;
}
}
return true;
}
示例2: splitAndGetPathComponents
import org.apache.hadoop.io.UTF8; //导入方法依赖的package包/类
public static byte[][] splitAndGetPathComponents(String str) {
try {
final int len;
if (str == null
|| ((len = str.length()) == 0)
|| str.charAt(0) != Path.SEPARATOR_CHAR) {
return null;
}
char[] charArray = UTF8.getCharArray(len);
str.getChars(0, len, charArray, 0);
// allocate list for components
List<byte[]> componentByteList = new ArrayList<byte[]>(20);
// for each component to know if it has only ascii chars
boolean canFastConvert = true;
int startIndex = 0;
for (int i = 0; i < len; i++) {
if (charArray[i] == Path.SEPARATOR_CHAR) {
componentByteList.add(extractBytes(str, startIndex, i, charArray,
canFastConvert));
startIndex = i + 1;
// assume only ASCII chars
canFastConvert = true;
} else if (charArray[i] > UTF8.MAX_ASCII_CODE) {
// found non-ASCII char, we will do
// full conversion for this component
canFastConvert = false;
}
}
// the case when the last component is a filename ("/" not at the end)
if (charArray[len - 1] != Path.SEPARATOR_CHAR) {
componentByteList.add(extractBytes(str, startIndex, len, charArray,
canFastConvert));
}
int last = componentByteList.size(); // last split
while (--last>=1 && componentByteList.get(last).length == 0) {
componentByteList.remove(last);
}
return componentByteList.toArray(new byte[last+1][]);
} catch (UnsupportedEncodingException e) {
return null;
}
}