org.onlab.util.HexDump Maven / Gradle / Ivy
/*
* Copyright 2015-present Open Networking Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onlab.util;
import org.jboss.netty.buffer.ChannelBuffer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* HexDump class an utility to dump buffer in hex format.
*
* @deprecated in 1.11.0
*/
@Deprecated
public final class HexDump {
private static final Logger log = LoggerFactory.getLogger(HexDump.class);
private HexDump() {
}
/**
* Dump the buffer content in hex format.
*
* @param buff buffer content to dump in hex format
*/
public static void dump(ChannelBuffer buff) {
buff.markReaderIndex();
try {
do {
StringBuilder sb = new StringBuilder();
for (int k = 0; (k < 16) && (buff.readableBytes() != 0); ++k) {
if (0 == k % 4) {
sb.append(" "); // blank after 4 bytes
}
sb.append(String.format("%02X ", buff.readByte()));
}
log.debug(sb.toString());
} while (buff.readableBytes() != 0);
} catch (Exception e) {
log.error("[HexDump] Invalid buffer: " + e.toString());
}
buff.resetReaderIndex();
}
}