1 /*
   2  * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.incubator.http.internal.frame;
  27 
  28 import jdk.incubator.http.internal.common.ByteBufferReference;
  29 import jdk.incubator.http.internal.common.Utils;
  30 
  31 import java.nio.ByteBuffer;

  32 
  33 /**
  34  * Either a HeadersFrame or a ContinuationFrame
  35  */
  36 public abstract class HeaderFrame extends Http2Frame {
  37 
  38     final int headerLength;
  39     final ByteBufferReference[] headerBlocks;
  40 
  41     public static final int END_STREAM = 0x1;
  42     public static final int END_HEADERS = 0x4;
  43 
  44     public HeaderFrame(int streamid, int flags, ByteBufferReference headerBlock) {
  45         this(streamid, flags, new ByteBufferReference[]{headerBlock});
  46     }
  47 
  48     public HeaderFrame(int streamid, int flags, ByteBufferReference[] headerBlocks) {
  49         super(streamid, flags);
  50         this.headerBlocks = headerBlocks;
  51         this.headerLength = Utils.remaining(headerBlocks);
  52     }
  53 
  54     @Override
  55     public String flagAsString(int flag) {
  56         switch (flag) {
  57             case END_HEADERS:
  58                 return "END_HEADERS";
  59             case END_STREAM:
  60                 return "END_STREAM";
  61         }
  62         return super.flagAsString(flag);
  63     }
  64 
  65 
  66     public ByteBufferReference[] getHeaderBlock() {
  67         return headerBlocks;
  68     }
  69 
  70     int getHeaderLength() {
  71         return headerLength;
  72     }
  73 
  74     /**
  75      * Returns true if this block is the final block of headers.
  76      */
  77     public boolean endHeaders() {
  78         return getFlag(END_HEADERS);
  79     }
  80 }

   1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.incubator.http.internal.frame;
  27 

  28 import jdk.incubator.http.internal.common.Utils;
  29 
  30 import java.nio.ByteBuffer;
  31 import java.util.List;
  32 
  33 /**
  34  * Either a HeadersFrame or a ContinuationFrame
  35  */
  36 public abstract class HeaderFrame extends Http2Frame {
  37 
  38     final int headerLength;
  39     final List<ByteBuffer> headerBlocks;
  40 
  41     public static final int END_STREAM = 0x1;
  42     public static final int END_HEADERS = 0x4;
  43 
  44     public HeaderFrame(int streamid, int flags, List<ByteBuffer> headerBlocks) {




  45         super(streamid, flags);
  46         this.headerBlocks = headerBlocks;
  47         this.headerLength = Utils.remaining(headerBlocks, Integer.MAX_VALUE);
  48     }
  49 
  50     @Override
  51     public String flagAsString(int flag) {
  52         switch (flag) {
  53             case END_HEADERS:
  54                 return "END_HEADERS";
  55             case END_STREAM:
  56                 return "END_STREAM";
  57         }
  58         return super.flagAsString(flag);
  59     }
  60 
  61 
  62     public List<ByteBuffer> getHeaderBlock() {
  63         return headerBlocks;
  64     }
  65 
  66     int getHeaderLength() {
  67         return headerLength;
  68     }
  69 
  70     /**
  71      * Returns true if this block is the final block of headers.
  72      */
  73     public boolean endHeaders() {
  74         return getFlag(END_HEADERS);
  75     }
  76 }