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Added utility methods for converting string to UTF-8 and vice versa.

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This commit is contained in:
akwizgran
2014-02-07 22:00:51 +00:00
parent 0626fe6c7c
commit f6360c09d4
2 changed files with 10 additions and 12 deletions
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10
briar-core/src/org/briarproject/util/StringUtils.java
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@@ -1,5 +1,7 @@
package org.briarproject.util; package org.briarproject.util;
import java.nio.charset.Charset;
public class StringUtils { public class StringUtils {
private static final char[] HEX = new char[] { private static final char[] HEX = new char[] {
@@ -11,6 +13,14 @@ public class StringUtils {
return s == null || s.length() == 0; return s == null || s.length() == 0;
} }
public static byte[] toUtf8(String s) {
return s.getBytes(Charset.forName("UTF-8"));
}
public static String fromUtf8(byte[] bytes) {
return new String(bytes, Charset.forName("UTF-8"));
}
/** Converts the given byte array to a hex character array. */ /** Converts the given byte array to a hex character array. */
public static char[] toHexChars(byte[] bytes) { public static char[] toHexChars(byte[] bytes) {
char[] hex = new char[bytes.length * 2]; char[] hex = new char[bytes.length * 2];

12
briar-tests/src/org/briarproject/util/StringUtilsTest.java
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@@ -7,18 +7,6 @@ import org.junit.Test;
public class StringUtilsTest extends BriarTestCase { public class StringUtilsTest extends BriarTestCase {
@Test
public void testHead() {
String head = StringUtils.head("123456789", 5);
assertEquals("12345...", head);
}
@Test
public void testTail() {
String tail = StringUtils.tail("987654321", 5);
assertEquals("...54321", tail);
}
@Test @Test
public void testToHexString() { public void testToHexString() {
byte[] b = new byte[] {1, 2, 3, 127, -128}; byte[] b = new byte[] {1, 2, 3, 127, -128};