org.apache.sshd.common.util.Readable Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.sshd.common.util;
import java.nio.ByteBuffer;
import java.util.Objects;
/**
* @author Apache MINA SSHD Project
*/
public interface Readable {
int available();
void getRawBytes(byte[] data, int offset, int len);
/**
* Wrap a {@link ByteBuffer} as a {@link Readable} instance
*
* @param buffer The {@link ByteBuffer} to wrap - never {@code null}
* @return The {@link Readable} wrapper
*/
static Readable readable(ByteBuffer buffer) {
Objects.requireNonNull(buffer, "No buffer to wrap");
return new Readable() {
@Override
public int available() {
return buffer.remaining();
}
@Override
public void getRawBytes(byte[] data, int offset, int len) {
buffer.get(data, offset, len);
}
};
}
}