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The source code/* * Copyright 1999-2004 The Apache Software Foundation * * 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 org.apache.coyote.http11; import java.io.IOException; import org.apache.tomcat.util.buf.ByteChunk; import org.apache.coyote.InputBuffer; import org.apache.coyote.Request; /** * Input filter interface. * * @author Remy Maucherat */ public interface InputFilter extends InputBuffer { /** * Read bytes. * * @return Number of bytes read. */ public int doRead(ByteChunk chunk, Request unused) throws IOException; /** * Some filters need additional parameters from the request. All the * necessary reading can occur in that method, as this method is called * after the request header processing is complete. */ public void setRequest(Request request); /** * Make the filter ready to process the next request. */ public void recycle(); /** * Get the name of the encoding handled by this filter. */ public ByteChunk getEncodingName(); /** * Set the next buffer in the filter pipeline. */ public void setBuffer(InputBuffer buffer); /** * End the current request. * * @return 0 is the expected return value. A positive value indicates that * too many bytes were read. This method is allowed to use buffer.doRead * to consume extra bytes. The result of this method can't be negative (if * an error happens, an IOException should be thrown instead). */ public long end() throws IOException; } |
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