ExtensionParser.java example

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/*
 * 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.subsystem.sftp.extensions;

import java.util.function.Function;

import org.apache.sshd.common.NamedResource;
import org.apache.sshd.common.util.NumberUtils;

/**
 * @param <T> Result type
 * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
 */
public interface ExtensionParser<T> extends NamedResource, Function<byte[], T> {
    default T parse(byte[] input) {
        return parse(input, 0, NumberUtils.length(input));
    }

    T parse(byte[] input, int offset, int len);

    @Override
    default T apply(byte[] input) {
        return parse(input);
    }
}