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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 io.undertow.protocols.http2;

import java.nio.ByteBuffer;

/**
 * Parser for HTTP2 window update frames
 *
 * @author Stuart Douglas
 */
class Http2DiscardParser extends Http2PushBackParser {

    int remaining;

    Http2DiscardParser(int frameLength) {
        super(frameLength);
        remaining = frameLength;
    }

    @Override
    protected void handleData(ByteBuffer resource, Http2FrameHeaderParser frameHeaderParser) {
        int toUse = Math.min(resource.remaining(), remaining);
        remaining -= toUse;
        resource.position(resource.position() + toUse);
    }

}