| /* |
| * 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 |
| * |
| * 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 java.nio.ByteBuffer; |
| |
| import org.apache.coyote.ActionCode; |
| import org.apache.coyote.OutputBuffer; |
| import org.apache.coyote.Response; |
| import org.apache.tomcat.jni.Socket; |
| import org.apache.tomcat.util.buf.ByteChunk; |
| import org.apache.tomcat.util.http.HttpMessages; |
| |
| /** |
| * Output buffer. |
| * |
| * @author <a href="mailto:remm@apache.org">Remy Maucherat</a> |
| */ |
| public class InternalAprOutputBuffer extends AbstractOutputBuffer { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| /** |
| * Default constructor. |
| */ |
| public InternalAprOutputBuffer(Response response, int headerBufferSize) { |
| |
| this.response = response; |
| |
| buf = new byte[headerBufferSize]; |
| if (headerBufferSize < (8 * 1024)) { |
| bbuf = ByteBuffer.allocateDirect(6 * 1500); |
| } else { |
| bbuf = ByteBuffer.allocateDirect((headerBufferSize / 1500 + 1) * 1500); |
| } |
| |
| outputStreamOutputBuffer = new SocketOutputBuffer(); |
| |
| filterLibrary = new OutputFilter[0]; |
| activeFilters = new OutputFilter[0]; |
| lastActiveFilter = -1; |
| |
| committed = false; |
| finished = false; |
| |
| // Cause loading of HttpMessages |
| HttpMessages.getMessage(200); |
| |
| } |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * Underlying socket. |
| */ |
| protected long socket; |
| |
| |
| /** |
| * Direct byte buffer used for writing. |
| */ |
| protected ByteBuffer bbuf = null; |
| |
| |
| // ------------------------------------------------------------- Properties |
| |
| |
| /** |
| * Set the underlying socket. |
| */ |
| public void setSocket(long socket) { |
| this.socket = socket; |
| Socket.setsbb(this.socket, bbuf); |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Flush the response. |
| * |
| * @throws IOException an underlying I/O error occurred |
| */ |
| @Override |
| public void flush() |
| throws IOException { |
| |
| super.flush(); |
| |
| // Flush the current buffer |
| flushBuffer(); |
| } |
| |
| |
| /** |
| * Recycle the output buffer. This should be called when closing the |
| * connection. |
| */ |
| @Override |
| public void recycle() { |
| |
| super.recycle(); |
| |
| bbuf.clear(); |
| } |
| |
| |
| /** |
| * End request. |
| * |
| * @throws IOException an underlying I/O error occurred |
| */ |
| @Override |
| public void endRequest() |
| throws IOException { |
| |
| if (!committed) { |
| |
| // Send the connector a request for commit. The connector should |
| // then validate the headers, send them (using sendHeader) and |
| // set the filters accordingly. |
| response.action(ActionCode.COMMIT, null); |
| |
| } |
| |
| if (finished) |
| return; |
| |
| if (lastActiveFilter != -1) |
| activeFilters[lastActiveFilter].end(); |
| |
| flushBuffer(); |
| |
| finished = true; |
| |
| } |
| |
| |
| // ------------------------------------------------ HTTP/1.1 Output Methods |
| |
| |
| /** |
| * Send an acknowledgment. |
| */ |
| @Override |
| public void sendAck() |
| throws IOException { |
| |
| if (!committed) { |
| if (Socket.send(socket, Constants.ACK_BYTES, 0, Constants.ACK_BYTES.length) < 0) |
| throw new IOException(sm.getString("iib.failedwrite")); |
| } |
| |
| } |
| |
| |
| // ------------------------------------------------------ Protected Methods |
| |
| |
| /** |
| * Commit the response. |
| * |
| * @throws IOException an underlying I/O error occurred |
| */ |
| @Override |
| protected void commit() throws IOException { |
| |
| // The response is now committed |
| committed = true; |
| response.setCommitted(true); |
| |
| if (pos > 0) { |
| // Sending the response header buffer |
| bbuf.put(buf, 0, pos); |
| } |
| |
| } |
| |
| |
| |
| /** |
| * Callback to write data from the buffer. |
| */ |
| protected void flushBuffer() |
| throws IOException { |
| if (bbuf.position() > 0) { |
| if (Socket.sendbb(socket, 0, bbuf.position()) < 0) { |
| throw new IOException(); |
| } |
| bbuf.clear(); |
| } |
| } |
| |
| |
| // ----------------------------------- OutputStreamOutputBuffer Inner Class |
| |
| |
| /** |
| * This class is an output buffer which will write data to an output |
| * stream. |
| */ |
| protected class SocketOutputBuffer implements OutputBuffer { |
| |
| |
| /** |
| * Write chunk. |
| */ |
| @Override |
| public int doWrite(ByteChunk chunk, Response res) |
| throws IOException { |
| |
| int len = chunk.getLength(); |
| int start = chunk.getStart(); |
| byte[] b = chunk.getBuffer(); |
| while (len > 0) { |
| int thisTime = len; |
| if (bbuf.position() == bbuf.capacity()) { |
| flushBuffer(); |
| } |
| if (thisTime > bbuf.capacity() - bbuf.position()) { |
| thisTime = bbuf.capacity() - bbuf.position(); |
| } |
| bbuf.put(b, start, thisTime); |
| len = len - thisTime; |
| start = start + thisTime; |
| } |
| byteCount += chunk.getLength(); |
| return chunk.getLength(); |
| } |
| |
| @Override |
| public long getBytesWritten() { |
| return byteCount; |
| } |
| } |
| |
| |
| } |