io.netty.handler.codec.spdy.DefaultSpdyHeadersFrame Maven / Gradle / Ivy

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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:
 *
 *   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.netty.handler.codec.spdy;


import io.netty.util.internal.StringUtil;

/**
 * The default {@link SpdyHeadersFrame} implementation.
 */
public class DefaultSpdyHeadersFrame extends DefaultSpdyHeaderBlock
        implements SpdyHeadersFrame {

    private int streamId;
    private boolean last;

    /**
     * Creates a new instance.
     *
     * @param streamId the Stream-ID of this frame
     */
    public DefaultSpdyHeadersFrame(int streamId) {
        setStreamId(streamId);
    }

    @Override
    public int getStreamId() {
        return streamId;
    }

    @Override
    public SpdyHeadersFrame setStreamId(int streamId) {
        if (streamId <= 0) {
            throw new IllegalArgumentException(
                    "Stream-ID must be positive: " + streamId);
        }
        this.streamId = streamId;
        return this;
    }

    @Override
    public boolean isLast() {
        return last;
    }

    @Override
    public SpdyHeadersFrame setLast(boolean last) {
        this.last = last;
        return this;
    }

    @Override
    public SpdyHeadersFrame setInvalid() {
        super.setInvalid();
        return this;
    }

    @Override
    public String toString() {
        StringBuilder buf = new StringBuilder();
        buf.append(getClass().getSimpleName());
        buf.append("(last: ");
        buf.append(isLast());
        buf.append(')');
        buf.append(StringUtil.NEWLINE);
        buf.append("--> Stream-ID = ");
        buf.append(streamId);
        buf.append(StringUtil.NEWLINE);
        buf.append("--> Headers:");
        buf.append(StringUtil.NEWLINE);
        appendHeaders(buf);

        // Remove the last newline.
        buf.setLength(buf.length() - StringUtil.NEWLINE.length());
        return buf.toString();
    }
}