diff src/org/eclipse/jetty/server/HttpOutput.java @ 802:3428c60d7cfc

replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
parents
children 5ee36654b383
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/server/HttpOutput.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,183 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.server;
+
+import java.io.IOException;
+import java.io.Writer;
+
+import javax.servlet.ServletOutputStream;
+
+import org.eclipse.jetty.http.AbstractGenerator;
+import org.eclipse.jetty.http.Generator;
+import org.eclipse.jetty.io.Buffer;
+import org.eclipse.jetty.io.ByteArrayBuffer;
+import org.eclipse.jetty.io.EofException;
+import org.eclipse.jetty.util.ByteArrayOutputStream2;
+
+/** Output.
+ * 
+ * <p>
+ * Implements  {@link javax.servlet.ServletOutputStream} from the <code>javax.servlet</code> package.   
+ * </p>
+ * A {@link ServletOutputStream} implementation that writes content
+ * to a {@link AbstractGenerator}.   The class is designed to be reused
+ * and can be reopened after a close.
+ */
+public class HttpOutput extends ServletOutputStream 
+{
+    protected final AbstractHttpConnection _connection;
+    protected final AbstractGenerator _generator;
+    private boolean _closed;
+    private ByteArrayBuffer _onebyte;
+    
+    // These are held here for reuse by Writer
+    String _characterEncoding;
+    Writer _converter;
+    char[] _chars;
+    ByteArrayOutputStream2 _bytes;
+
+    /* ------------------------------------------------------------ */
+    public HttpOutput(AbstractHttpConnection connection)
+    {
+        _connection=connection;
+        _generator=(AbstractGenerator)connection.getGenerator();
+    }
+
+    /* ------------------------------------------------------------ */
+    public int getMaxIdleTime()
+    {
+        return _connection.getMaxIdleTime();
+    }
+    
+    /* ------------------------------------------------------------ */
+    public boolean isWritten()
+    {
+        return _generator.getContentWritten()>0;
+    }
+    
+    /* ------------------------------------------------------------ */
+    /*
+     * @see java.io.OutputStream#close()
+     */
+    @Override
+    public void close() throws IOException
+    {
+        _closed=true;
+    }
+    
+    /* ------------------------------------------------------------ */
+    public boolean isClosed()
+    {
+        return _closed;
+    }
+    
+    /* ------------------------------------------------------------ */
+    public void reopen()
+    {
+        _closed=false;
+    }
+    
+    /* ------------------------------------------------------------ */
+    @Override
+    public void flush() throws IOException
+    {
+        _generator.flush(getMaxIdleTime());
+    }
+
+    /* ------------------------------------------------------------ */
+    @Override
+    public void write(byte[] b, int off, int len) throws IOException
+    {
+        write(new ByteArrayBuffer(b,off,len));
+    }
+
+    /* ------------------------------------------------------------ */
+    /*
+     * @see java.io.OutputStream#write(byte[])
+     */
+    @Override
+    public void write(byte[] b) throws IOException
+    {
+        write(new ByteArrayBuffer(b));
+    }
+
+    
+    /* ------------------------------------------------------------ */
+    /*
+     * @see java.io.OutputStream#write(int)
+     */
+    @Override
+    public void write(int b) throws IOException
+    {
+        if (_onebyte==null)
+            _onebyte=new ByteArrayBuffer(1);
+        else
+            _onebyte.clear();
+        _onebyte.put((byte)b);
+        write(_onebyte);
+    }
+
+    /* ------------------------------------------------------------ */
+    private void write(Buffer buffer) throws IOException
+    {
+        if (_closed)
+            throw new IOException("Closed");
+        if (!_generator.isOpen())
+            throw new EofException();
+        
+        // Block until we can add _content.
+        while (_generator.isBufferFull())
+        {
+            _generator.blockForOutput(getMaxIdleTime());
+            if (_closed)
+                throw new IOException("Closed");
+            if (!_generator.isOpen())
+                throw new EofException();
+        }
+
+        // Add the _content
+        _generator.addContent(buffer, Generator.MORE);
+
+        // Have to flush and complete headers?
+        
+        if (_generator.isAllContentWritten())
+        {
+            flush();
+            close();
+        } 
+        else if (_generator.isBufferFull())
+            _connection.commitResponse(Generator.MORE);
+
+        // Block until our buffer is free
+        while (buffer.length() > 0 && _generator.isOpen())
+        {
+            _generator.blockForOutput(getMaxIdleTime());
+        }
+    }
+
+    /* ------------------------------------------------------------ */
+    /* 
+     * @see javax.servlet.ServletOutputStream#print(java.lang.String)
+     */
+    @Override
+    public void print(String s) throws IOException
+    {
+        write(s.getBytes());
+    }
+}