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PHPJavaBridge server (soluble fork)
/*-*- mode: Java; tab-width:8 -*-*/
package io.soluble.pjb.bridge.http;
/*
* Copyright (C) 2003-2007 Jost Boekemeier
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import io.soluble.pjb.bridge.NotImplementedException;
import io.soluble.pjb.bridge.Util;
/**
* A simple HTTP response implementation.
*
* @author jostb
*/
public class HttpResponse {
private final HashMap headers;
private OutputStream outputStream;
private boolean headersWritten;
/**
* Create a new HTTP response with the given OutputStream
*
* @param outputStream The OutputStream.
* /*
*/
public HttpResponse(OutputStream outputStream) {
this.headers = new HashMap();
this.outputStream = new BufferedOutputStream(outputStream) {
@Override
public void write(byte buf[], int pos, int len) throws IOException {
if (!headersWritten) {
headersWritten = true;
writeHeaders();
}
super.write(buf, pos, len);
}
};
}
/**
* Set the response header
*
* @param string The header key
* @param val The header value.
*/
public void setHeader(String string, String val) {
headers.put(string, val);
}
/**
* Returns the OutputStream of the response. setContentLength() must be called before.
*
* @return The OutputStream
* @see HttpRequest#setContentLength(int)
*/
public OutputStream getOutputStream() {
return outputStream;
}
/**
* Set the response status. Not implemented.
*
* @param code
*/
public void setStatus(int code) {
throw new NotImplementedException();
}
/**
* Add a response header, in this implementation identical to setHeader
*
* @param string The header
* @param string2 The header value
* @see HttpResponse#setHeader(String, String)
*/
public void addHeader(String string, String string2) {
setHeader(string, string2);
}
private final byte[] h1 = Util.toBytes("HTTP/1.0 200 OK\r\n");
private final byte[] h2 = Util.toBytes("Host: localhost\r\nConnection: close\r\n");
private final byte[] h4 = Util.toBytes(": ");
private void writeHeaders() throws IOException {
java.io.ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(h1);
out.write(h2);
for (Iterator ii = headers.keySet().iterator(); ii.hasNext(); ) {
Object key = ii.next();
Object val = headers.get(key);
out.write(Util.toBytes((String) key));
out.write(h4);
out.write(Util.toBytes((String) val));
out.write(Util.RN);
}
out.write(Util.RN);
out.writeTo(outputStream);
}
/**
* Set the content length of the response. Sets the "Content-Length" header value.
*
* @param length The content length
* @throws IOException
* @see HttpResponse#getOutputStream()
*/
public void setContentLength(int length) throws IOException {
setHeader("Content-Length", String.valueOf(length));
}
/**
* Close the response
*
* @throws IOException
*/
public void close() throws IOException {
try {
if (outputStream != null) outputStream.close();
} finally {
outputStream = null;
}
}
public void flushBuffer() throws IOException {
if (outputStream != null) outputStream.flush();
}
}