01: /*
02: * <copyright>
03: *
04: * Copyright 1997-2007 BBNT Solutions, LLC
05: * under sponsorship of the Defense Advanced Research Projects
06: * Agency (DARPA).
07: *
08: * You can redistribute this software and/or modify it under the
09: * terms of the Cougaar Open Source License as published on the
10: * Cougaar Open Source Website (www.cougaar.org).
11: *
12: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
14: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
15: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
16: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
17: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
18: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: *
24: * </copyright>
25: */
26:
27: package org.cougaar.lib.web.micro.base;
28:
29: import java.io.IOException;
30: import java.io.PrintWriter;
31: import java.util.Map;
32:
33: import javax.servlet.ServletOutputStream;
34:
35: /**
36: * A data writer for the {@link HttpServletResponseImpl} class.
37: * <p>
38: * This is factored out to support both stream-based and in-memory output.
39: */
40: public interface ResponseCallback {
41: boolean isError();
42:
43: void setStatus(int status, String message);
44:
45: void setError(int status, String message);
46:
47: String getStatusLine();
48:
49: Map getHeaders();
50:
51: String getHeaderLines();
52:
53: ServletOutputStream createOutputStream() throws IOException;
54:
55: PrintWriter createWriter() throws IOException;
56:
57: void finishResponse() throws IOException;
58: }
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