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/*-
* ============LICENSE_START==========================================
* OPENECOMP - DCAE
* ===================================================================
* Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
* 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.
* ============LICENSE_END============================================
*/
package org.openecomp.ncomp.webservice.utils;
import java.nio.ByteBuffer;
import java.util.Date;
public class ByteBufferUtils {
private static boolean debug = false;
public static void getUnixDate(ByteBuffer buf, Date date, char c) {
date.setTime(1000*getLong(buf));
}
public static void getUnixDateWithMilliSeconds(ByteBuffer buf, Date date, char c) {
date.setTime(1000*getLong(buf));
getLong(buf);
if (debug ) System.out.println ( "getUnixDateWithMilliSeconds: " + date);
}
public static int getInt(ByteBuffer buf) {
// TODO Auto-generated method stub
return (int) getLong(buf);
}
public static long getLong(ByteBuffer buf) {
// TODO Auto-generated method stub
int i = 0;
byte c = buf.get(buf.position());
if (c=='-') {
buf.get();
return -getLong(buf);
}
for (c=buf.get();c>='0'&&c<='9';c=buf.get()) {
i = 10*i+c - '0';
}
// if (debug ) System.out.println ( "getLong: " + i);
return i;
}
public static void forward(ByteBuffer buf, char c) {
while (true) {
byte cc = buf.get();
// if (debug ) System.out.println ( "forward cc c:" + cc + " " + (byte) c + " " + (char) cc);
if (cc == c) break;
}
}
public static int getIpInt(ByteBuffer buf) {
int ip;
ip = getInt(buf);
ip = 256 * ip + getInt(buf);
ip = 256 * ip + getInt(buf);
ip = 256 * ip + getInt(buf);
// if (debug ) System.out.println ( "getIpInt: " + IpUtils.toString(ip));
return ip;
}
public static StringBuffer getBuffer(ByteBuffer buf, char c) {
// TODO Auto-generated method stub
StringBuffer sbuf = new StringBuffer();
while (true) {
byte cc = buf.get();
// if (debug ) System.out.println ( "cc c:" + cc + " " + (byte) c + " " + (char) cc);
if (cc == c) break;
sbuf.append((char)cc);
}
if (debug ) System.out.println ( "getBuffer: " + sbuf);
return sbuf;
}
public static int mask2masklen(ByteBuffer buf) {
// 255.255.255.252 -> 30
int len = 0;
for (int j = 0; j < 4; j++) {
int i = getInt(buf);
for (int x = 0; x < 8; x++) {
if ((i >> x) % 2 == 1) {
len += 8 - x;
break;
}
}
}
return len;
}
}
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