com.ibm.websphere.servlet.response
Class HttpServletResponseProxy
- java.lang.Object
com.ibm.websphere.servlet.response.HttpServletResponseProxy
All implemented interfaces:
javax.servlet.http.HttpServletResponse, javax.servlet.ServletResponse
Deprecated. since WAS V6.0 Use the HttpServletResponseWrapper class instead. Proxies function invocations to an underlying HttpServletResponse. Subclasses of this class can be created that overload or enhance the functionality of a server-provided HttpServletResponse.
Using the proxied response:
- Subclass this class and overload any desired functions.
- During the servlet's service method, create an instance of the enhanced response using the original response from the server as the proxied response.
- Forward the enhanced response to another servlet for processing instead of the original response that was provided by the server.
Sample subclass (overloads the response's OutputStream)
//The data written to this response will be saved to the specified file. public class FileOutputResponse extends HttpServletResponseProxy{ private HttpServletResponse _response; private File _file; public FileOutputResponse(File f, HttpServletResponse resp){ _file = f; _response = resp; } protected HttpServletResponse getProxiedHttpServletResponse(){ return _response; } //overload response functionality public ServletOutputStream getOutputStream() throws IOException{ return new ServletOutputStreamAdapter(new FileOutputStream(_file)); } public PrintWriter getWriter() throws IOException{ return new PrintWriter(getOutputStream()); } }
Using the enhanced response subclass transparently in a servlet
//This servlet will store the response of another servlet to a file. public class SaveResponseToFileServlet extends HttpServlet{ public void service(HttpServletRequest req, HttpServletResponse resp){ resp = new FileOutputResponse(req, new File("/tmp/response.txt")); //store the response of SnoopServlet to the response.txt file. getServletContext().getRequestDispatcher("/servlet/SnoopServlet").forward(req, resp); } }
- public abstract class HttpServletResponseProxy
- extends java.lang.Object
- implements javax.servlet.http.HttpServletResponse
Field Summary
Fields inherited from interface javax.servlet.http.HttpServletResponse |
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SC_ACCEPTED, SC_BAD_GATEWAY, SC_BAD_REQUEST, SC_CONFLICT, SC_CONTINUE, SC_CREATED, SC_EXPECTATION_FAILED, SC_FORBIDDEN, SC_FOUND, SC_GATEWAY_TIMEOUT, SC_GONE, SC_HTTP_VERSION_NOT_SUPPORTED, SC_INTERNAL_SERVER_ERROR, SC_LENGTH_REQUIRED, SC_METHOD_NOT_ALLOWED, SC_MOVED_PERMANENTLY, SC_MOVED_TEMPORARILY, SC_MULTIPLE_CHOICES, SC_NO_CONTENT, SC_NON_AUTHORITATIVE_INFORMATION, SC_NOT_ACCEPTABLE, SC_NOT_FOUND, SC_NOT_IMPLEMENTED, SC_NOT_MODIFIED, SC_OK, SC_PARTIAL_CONTENT, SC_PAYMENT_REQUIRED, SC_PRECONDITION_FAILED, SC_PROXY_AUTHENTICATION_REQUIRED, SC_REQUEST_ENTITY_TOO_LARGE, SC_REQUEST_TIMEOUT, SC_REQUEST_URI_TOO_LONG, SC_REQUESTED_RANGE_NOT_SATISFIABLE, SC_RESET_CONTENT, SC_SEE_OTHER, SC_SERVICE_UNAVAILABLE, SC_SWITCHING_PROTOCOLS, SC_TEMPORARY_REDIRECT, SC_UNAUTHORIZED, SC_UNSUPPORTED_MEDIA_TYPE, SC_USE_PROXY |
Constructor Summary
Constructor and Description |
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HttpServletResponseProxy()
Deprecated.
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Method Summary
Modifier and Type | Method and Description |
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addCookie(javax.servlet.http.Cookie cookie)
Deprecated.
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addDateHeader(java.lang.String name,long date)
Deprecated.
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addHeader(java.lang.String name,java.lang.String value)
Deprecated.
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addIntHeader(java.lang.String name,int value)
Deprecated.
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containsHeader(java.lang.String name)
Deprecated.
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encodeRedirectUrl(java.lang.String url)
Deprecated.
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encodeRedirectURL(java.lang.String url)
Deprecated.
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encodeUrl(java.lang.String url)
Deprecated.
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encodeURL(java.lang.String url)
Deprecated.
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flushBuffer()
Deprecated.
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getBufferSize()
Deprecated.
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getCharacterEncoding()
Deprecated.
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getLocale()
Deprecated.
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getOutputStream()
Deprecated.
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getProxiedHttpServletResponse()
Deprecated. Get the response that this object is supposed to proxy.
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getResponse()
Deprecated.
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getWriter()
Deprecated.
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isCommitted()
Deprecated.
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reset()
Deprecated.
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resetBuffer()
Deprecated. Clears the content of the underlying buffer in the response without clearing
headers or status code.
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sendError(int sc)
Deprecated.
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sendError(int sc,java.lang.String msg)
Deprecated.
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sendRedirect(java.lang.String location)
Deprecated.
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setBufferSize(int size)
Deprecated.
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setContentLength(int len)
Deprecated.
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setContentType(java.lang.String type)
Deprecated.
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setDateHeader(java.lang.String name,long date)
Deprecated.
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setHeader(java.lang.String name,java.lang.String value)
Deprecated.
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setIntHeader(java.lang.String name,int value)
Deprecated.
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setLocale(java.util.Locale loc)
Deprecated.
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setStatus(int sc)
Deprecated.
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setStatus(int sc,java.lang.String sm)
Deprecated.
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface javax.servlet.http.HttpServletResponse |
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getHeader, getHeaderNames, getHeaders, getStatus |
Methods inherited from interface javax.servlet.ServletResponse |
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getContentType, setCharacterEncoding |
Constructor Detail
HttpServletResponseProxy
- public HttpServletResponseProxy( )
Deprecated.
Method Detail
getProxiedHttpServletResponse
- protected abstract javax.servlet.http.HttpServletResponse getProxiedHttpServletResponse( )
Deprecated.
Get the response that this object is supposed to proxy.
addCookie
- public void addCookie(javax.servlet.http.Cookie cookie)
Deprecated.
Specified by:
addCookie
in interface javax.servlet.http.HttpServletResponse
containsHeader
- public boolean containsHeader(java.lang.String name)
Deprecated.
Specified by:
containsHeader
in interface javax.servlet.http.HttpServletResponse
encodeRedirectUrl
- public java.lang.String encodeRedirectUrl( java.lang.String url)
Deprecated.
Specified by:
encodeRedirectUrl
in interface javax.servlet.http.HttpServletResponse
encodeURL
- public java.lang.String encodeURL( java.lang.String url)
Deprecated.
Specified by:
encodeURL
in interface javax.servlet.http.HttpServletResponse
encodeRedirectURL
- public java.lang.String encodeRedirectURL( java.lang.String url)
Deprecated.
Specified by:
encodeRedirectURL
in interface javax.servlet.http.HttpServletResponse
encodeUrl
- public java.lang.String encodeUrl( java.lang.String url)
Deprecated.
Specified by:
encodeUrl
in interface javax.servlet.http.HttpServletResponse
setDateHeader
- public void setDateHeader(java.lang.String name,
- long date)
Deprecated.
Specified by:
setDateHeader
in interface javax.servlet.http.HttpServletResponse
sendError
- public void sendError(int sc)
- throws java.io.IOException
Deprecated.
Specified by:
sendError
in interface javax.servlet.http.HttpServletResponse
Throws:
java.io.IOException
sendError
- public void sendError(int sc,
- java.lang.String msg)
- throws java.io.IOException
Deprecated.
Specified by:
sendError
in interface javax.servlet.http.HttpServletResponse
Throws:
java.io.IOException
sendRedirect
- public void sendRedirect(java.lang.String location)
- throws java.io.IOException
Deprecated.
Specified by:
sendRedirect
in interface javax.servlet.http.HttpServletResponse
Throws:
java.io.IOException
setStatus
- public void setStatus(int sc)
Deprecated.
Specified by:
setStatus
in interface javax.servlet.http.HttpServletResponse
setStatus
- public void setStatus(int sc,
- java.lang.String sm)
Deprecated.
Specified by:
setStatus
in interface javax.servlet.http.HttpServletResponse
setHeader
- public void setHeader(java.lang.String name,
- java.lang.String value)
Deprecated.
Specified by:
setHeader
in interface javax.servlet.http.HttpServletResponse
setIntHeader
- public void setIntHeader(java.lang.String name,
- int value)
Deprecated.
Specified by:
setIntHeader
in interface javax.servlet.http.HttpServletResponse
addIntHeader
- public void addIntHeader(java.lang.String name,
- int value)
Deprecated.
Specified by:
addIntHeader
in interface javax.servlet.http.HttpServletResponse
addHeader
- public void addHeader(java.lang.String name,
- java.lang.String value)
Deprecated.
Specified by:
addHeader
in interface javax.servlet.http.HttpServletResponse
addDateHeader
- public void addDateHeader(java.lang.String name,
- long date)
Deprecated.
Specified by:
addDateHeader
in interface javax.servlet.http.HttpServletResponse
getCharacterEncoding
- public java.lang.String getCharacterEncoding( )
Deprecated.
Specified by:
getCharacterEncoding
in interface javax.servlet.ServletResponse
getOutputStream
- public javax.servlet.ServletOutputStream getOutputStream( )
- throws java.io.IOException
Deprecated.
Specified by:
getOutputStream
in interface javax.servlet.ServletResponse
Throws:
java.io.IOException
getWriter
- public java.io.PrintWriter getWriter( )
- throws java.io.IOException
Deprecated.
Specified by:
getWriter
in interface javax.servlet.ServletResponse
Throws:
java.io.IOException
setContentLength
- public void setContentLength(int len)
Deprecated.
Specified by:
setContentLength
in interface javax.servlet.ServletResponse
setContentType
- public void setContentType(java.lang.String type)
Deprecated.
Specified by:
setContentType
in interface javax.servlet.ServletResponse
setBufferSize
- public void setBufferSize(int size)
Deprecated.
Specified by:
setBufferSize
in interface javax.servlet.ServletResponse
getBufferSize
- public int getBufferSize()
Deprecated.
Specified by:
getBufferSize
in interface javax.servlet.ServletResponse
flushBuffer
- public void flushBuffer()
- throws java.io.IOException
Deprecated.
Specified by:
flushBuffer
in interface javax.servlet.ServletResponse
Throws:
java.io.IOException
isCommitted
- public boolean isCommitted()
Deprecated.
Specified by:
isCommitted
in interface javax.servlet.ServletResponse
reset
- public void reset()
Deprecated.
Specified by:
reset
in interface javax.servlet.ServletResponse
setLocale
- public void setLocale(java.util.Locale loc)
Deprecated.
Specified by:
setLocale
in interface javax.servlet.ServletResponse
getLocale
- public java.util.Locale getLocale( )
Deprecated.
Specified by:
getLocale
in interface javax.servlet.ServletResponse
resetBuffer
- public void resetBuffer()
Deprecated.
Clears the content of the underlying buffer in the response without clearing
headers or status code.
Specified by:
resetBuffer
in interface javax.servlet.ServletResponse
Throws:
java.lang.IllegalStateException
- if the response has already been committed Since:
2.3
getResponse
- public javax.servlet.ServletResponse getResponse( )
Deprecated.