io.netty.handler.codec.http.websocketx.WebSocketFrame Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2012 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:
 *
 *   https://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.netty.handler.codec.http.websocketx;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.DefaultByteBufHolder;
import io.netty.util.internal.StringUtil;

/**
 * Base class for web socket frames.
 */
public abstract class WebSocketFrame extends DefaultByteBufHolder {

    /**
     * Flag to indicate if this frame is the final fragment in a message. The first fragment (frame) may also be the
     * final fragment.
     */
    private final boolean finalFragment;

    /**
     * RSV1, RSV2, RSV3 used for extensions
     */
    private final int rsv;

    protected WebSocketFrame(ByteBuf binaryData) {
        this(true, 0, binaryData);
    }

    protected WebSocketFrame(boolean finalFragment, int rsv, ByteBuf binaryData) {
        super(binaryData);
        this.finalFragment = finalFragment;
        this.rsv = rsv;
    }

    /**
     * Flag to indicate if this frame is the final fragment in a message. The first fragment (frame) may also be the
     * final fragment.
     */
    public boolean isFinalFragment() {
        return finalFragment;
    }

    /**
     * Bits used for extensions to the standard.
     */
    public int rsv() {
        return rsv;
    }

    @Override
    public WebSocketFrame copy() {
        return (WebSocketFrame) super.copy();
    }

    @Override
    public WebSocketFrame duplicate() {
        return (WebSocketFrame) super.duplicate();
    }

    @Override
    public WebSocketFrame retainedDuplicate() {
        return (WebSocketFrame) super.retainedDuplicate();
    }

    @Override
    public abstract WebSocketFrame replace(ByteBuf content);

    @Override
    public String toString() {
        return StringUtil.simpleClassName(this) + "(data: " + contentToString() + ')';
    }

    @Override
    public WebSocketFrame retain() {
        super.retain();
        return this;
    }

    @Override
    public WebSocketFrame retain(int increment) {
        super.retain(increment);
        return this;
    }

    @Override
    public WebSocketFrame touch() {
        super.touch();
        return this;
    }

    @Override
    public WebSocketFrame touch(Object hint) {
        super.touch(hint);
        return this;
    }
}