/*
* Copyright (c) 2013 Big Switch Networks, Inc.
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/legal/epl-v10.html
*
* 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.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
*
* 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.openflow.util;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.Arrays;
import org.jboss.netty.buffer.ChannelBuffer;
public class StringByteSerializer {
public static String readFrom(ChannelBuffer data, int length) {
byte[] stringBytes = new byte[length];
data.readBytes(stringBytes);
// find the first index of 0
int index = 0;
for (byte b : stringBytes) {
if (0 == b)
break;
++index;
}
return new String(Arrays.copyOf(stringBytes, index),
Charset.forName("ascii"));
}
public static void writeTo(ChannelBuffer data, int length, String value) {
try {
byte[] name = value.getBytes("ASCII");
if (name.length < length) {
data.writeBytes(name);
for (int i = name.length; i < length; ++i) {
data.writeByte((byte) 0);
}
} else {
data.writeBytes(name, 0, length-1);
data.writeByte((byte) 0);
}
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
}