openbns.commons.net.codec.sts.HttpHeaderEntity.java Source code

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Here is the source code for openbns.commons.net.codec.sts.HttpHeaderEntity.java

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/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project 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 openbns.commons.net.codec.sts;

import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;

final class HttpHeaderEntity implements CharSequence {

    private final String name;
    private final int hash;
    private final byte[] bytes;

    public HttpHeaderEntity(String name) {
        this.name = name;
        hash = StsHeaders.hash(name);
        bytes = name.getBytes(CharsetUtil.US_ASCII);
    }

    int hash() {
        return hash;
    }

    @Override
    public int length() {
        return bytes.length;
    }

    @Override
    public char charAt(int index) {
        return (char) bytes[index];
    }

    @Override
    public CharSequence subSequence(int start, int end) {
        return new HttpHeaderEntity(name.substring(start, end));
    }

    @Override
    public String toString() {
        return name;
    }

    void encode(ByteBuf buf) {
        buf.writeBytes(bytes);
    }
}