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-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/hc2vpp/common/translate/util/ByteDataTranslator.java54
1 files changed, 18 insertions, 36 deletions
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/hc2vpp/common/translate/util/ByteDataTranslator.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/hc2vpp/common/translate/util/ByteDataTranslator.java
index d24157bf6..3424af534 100644
--- a/vpp-common/vpp-translate-utils/src/main/java/io/fd/hc2vpp/common/translate/util/ByteDataTranslator.java
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/hc2vpp/common/translate/util/ByteDataTranslator.java
@@ -21,12 +21,10 @@ import javax.annotation.Nonnull;
import javax.annotation.Nullable;
/**
- * Trait providing logic for working with binary/hex-based data
+ * Trait providing logic for working with binary/hex-based data.
*/
public interface ByteDataTranslator {
- char[] HEX_CHARS = "0123456789abcdef".toCharArray();
-
ByteDataTranslator INSTANCE = new ByteDataTranslator() {
};
@@ -46,14 +44,14 @@ public interface ByteDataTranslator {
}
/**
- * Converts int to byte
+ * Converts int to byte.
*/
default byte toByte(final int value) {
return Integer.valueOf(value).byteValue();
}
/**
- * Converts short to byte
+ * Converts short to byte.
*/
default byte toByte(final short value) {
return Short.valueOf(value).byteValue();
@@ -73,41 +71,20 @@ public interface ByteDataTranslator {
} else if (value == BYTE_TRUE) {
return Boolean.TRUE;
}
-
- char[] HEX_CHARS = "0123456789abcdef".toCharArray();
throw new IllegalArgumentException(String.format("0 or 1 was expected but was %d", value));
}
/**
- * Reverses bytes in the byte array
- *
- * @param bytes input array
- * @return reversed array
- */
- default byte[] reverseBytes(final byte[] bytes) {
- final byte[] reversed = new byte[bytes.length];
- int i = 1;
- for (byte aByte : bytes) {
- reversed[bytes.length - i++] = aByte;
- }
-
- return reversed;
- }
-
- /**
-
- char[] HEX_CHARS = "0123456789abcdef".toCharArray();
* Return (interned) string from byte array while removing \u0000. Strings represented as fixed length byte[] from
* vpp contain \u0000.
*/
- default String toString(final byte[] cString) {
- return new String(cString).replaceAll("\\u0000", "").intern();
+ default String toString(final byte[] vppString) {
+ return new String(vppString).replaceAll("\\u0000", "").intern();
}
/**
- * Converts signed byte(filled with unsigned value from vpp) to java integer
- *
- * For example unsigned C byte 128 is converted by jvpp to -128, this will return 128
+ * Converts signed byte(filled with unsigned value from vpp) to java integer.
+ * For example unsigned C byte 128 is converted by jvpp to -128, this will return 128.
*/
default int toJavaByte(final byte vppByte) {
return Byte.toUnsignedInt(vppByte);
@@ -121,18 +98,23 @@ public interface ByteDataTranslator {
default String printHexBinary(@Nonnull final byte[] bytes, final int startIndex, final int endIndex) {
StringBuilder str = new StringBuilder();
- appendHexByte(str, bytes[startIndex]);
+ Impl.appendHexByte(str, bytes[startIndex]);
for (int i = startIndex + 1; i < endIndex; i++) {
str.append(":");
- appendHexByte(str, bytes[i]);
+ Impl.appendHexByte(str, bytes[i]);
}
return str.toString();
}
- default void appendHexByte(final StringBuilder sb, final byte b) {
- final int v = b & 0xFF;
- sb.append(HEX_CHARS[v >>> 4]);
- sb.append(HEX_CHARS[v & 15]);
+ final class Impl {
+
+ private static final char[] HEX_CHARS = "0123456789abcdef".toCharArray();
+
+ private static void appendHexByte(final StringBuilder sb, final byte b) {
+ final int v = b & 0xFF;
+ sb.append(HEX_CHARS[v >>> 4]);
+ sb.append(HEX_CHARS[v & 15]);
+ }
}
}