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   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF 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
  *  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 org.apache.coyote.http11.filters;
Void input filter, which returns -1 when attempting a read. Used with a GET, HEAD, or a similar request.

Remy Maucherat
 public class VoidInputFilter implements InputFilter {
     // -------------------------------------------------------------- Constants
     protected static final String ENCODING_NAME = "void";
     protected static final ByteChunk ENCODING = new ByteChunk();
     // ----------------------------------------------------- Static Initializer
     static {
     // ----------------------------------------------------- Instance Variables
     // --------------------------------------------------- OutputBuffer Methods

Write some bytes.

number of bytes written by the filter
     public int doRead(ByteChunk chunkRequest req)
         throws IOException {
         return -1;
     // --------------------------------------------------- OutputFilter Methods

Set the associated reauest.
     public void setRequest(Request request) {

Set the next buffer in the filter pipeline.
     public void setBuffer(InputBuffer buffer) {

Make the filter ready to process the next request.
     public void recycle() {

Return the name of the associated encoding; Here, the value is "void".
     public ByteChunk getEncodingName() {
        return ;

End the current request. It is acceptable to write extra bytes using buffer.doWrite during the execution of this method.

Should return 0 unless the filter does some content length delimitation, in which case the number is the amount of extra bytes or missing bytes, which would indicate an error. Note: It is recommended that extra bytes be swallowed by the filter.
    public long end()
        throws IOException {
        return 0;

Amount of bytes still available in a buffer.
    public int available() {
        return 0;
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