javax.xml.ws.spi.http.HttpExchange Maven / Gradle / Ivy
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package javax.xml.ws.spi.http;
import javax.xml.ws.handler.MessageContext;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.security.Principal;
/**
* This class encapsulates a HTTP request received and a
* response to be generated in one exchange. It provides methods
* for examining the request from the client, and for building and
* sending the response.
*
* A {@code HttpExchange} must be closed to free or reuse
* underlying resources. The effect of failing to close an exchange
* is undefined.
*
* @author Jitendra Kotamraju
* @since 1.7, JAX-WS 2.2
*/
public abstract class HttpExchange {
/**
* Standard property: cipher suite value when the request is received
* over HTTPS
*
Type: String
*/
public static final String REQUEST_CIPHER_SUITE =
"javax.xml.ws.spi.http.request.cipher.suite";
/**
* Standard property: bit size of the algorithm when the request is
* received over HTTPS
*
Type: Integer
*/
public static final String REQUEST_KEY_SIZE =
"javax.xml.ws.spi.http.request.key.size";
/**
* Standard property: A SSL certificate, if any, associated with the request
*
*
Type: java.security.cert.X509Certificate[]
* The order of this array is defined as being in ascending order of trust.
* The first certificate in the chain is the one set by the client, the next
* is the one used to authenticate the first, and so on.
*/
public static final String REQUEST_X509CERTIFICATE =
"javax.xml.ws.spi.http.request.cert.X509Certificate";
/**
* Returns an immutable Map containing the HTTP headers that were
* included with this request. The keys in this Map will be the header
* names, while the values will be a List of Strings containing each value
* that was included (either for a header that was listed several times,
* or one that accepts a comma-delimited list of values on a single line).
* In either of these cases, the values for the header name will be
* presented in the order that they were included in the request.
*
* The keys in Map are case-insensitive.
*
* @return an immutable Map which can be used to access request headers
*/
public abstract Map> getRequestHeaders();
/**
* Returns the value of the specified request header. If the request
* did not include a header of the specified name, this method returns
* null. If there are multiple headers with the same name, this method
* returns the first header in the request. The header name is
* case-insensitive. This is a convienence method to get a header
* (instead of using the {@link #getRequestHeaders}).
*
* @param name the name of the request header
* @return returns the value of the requested header,
* or null if the request does not have a header of that name
*/
public abstract String getRequestHeader(String name);
/**
* Returns a mutable Map into which the HTTP response headers can be stored
* and which will be transmitted as part of this response. The keys in the
* Map will be the header names, while the values must be a List of Strings
* containing each value that should be included multiple times
* (in the order that they should be included).
*
* The keys in Map are case-insensitive.
*
* @return a mutable Map which can be used to set response headers.
*/
public abstract Map> getResponseHeaders();
/**
* Adds a response header with the given name and value. This method
* allows a response header to have multiple values. This is a
* convenience method to add a response header(instead of using the
* {@link #getResponseHeaders()}).
*
* @param name the name of the header
* @param value the additional header value. If it contains octet string,
* it should be encoded according to
* RFC 2047 (http://www.ietf.org/rfc/rfc2047.txt)
*
* @see #getResponseHeaders
*/
public abstract void addResponseHeader(String name, String value);
/**
* Returns the part of the request's URI from the protocol
* name up to the query string in the first line of the HTTP request.
* Container doesn't decode this string.
*
* @return the request URI
*/
public abstract String getRequestURI();
/**
* Returns the context path of all the endpoints in an application.
* This path is the portion of the request URI that indicates the
* context of the request. The context path always comes first in a
* request URI. The path starts with a "/" character but does not
* end with a "/" character. If this method returns "", the request
* is for default context. The container does not decode this string.
*
*
* Context path is used in computing the endpoint address. See
* {@link HttpContext#getPath}
*
* @return context path of all the endpoints in an application
* @see HttpContext#getPath
*/
public abstract String getContextPath();
/**
* Get the HTTP request method
*
* @return the request method
*/
public abstract String getRequestMethod();
/**
* Returns a {@link HttpContext} for this exchange.
* Container matches the request with the associated Endpoint's HttpContext
*
* @return the HttpContext for this exchange
*/
public abstract HttpContext getHttpContext();
/**
* This must be called to end an exchange. Container takes care of
* closing request and response streams. This must be called so that
* the container can free or reuse underlying resources.
*
* @throws IOException if any i/o error
*/
public abstract void close() throws IOException;
/**
* Returns a stream from which the request body can be read.
* Multiple calls to this method will return the same stream.
*
* @return the stream from which the request body can be read.
* @throws IOException if any i/o error during request processing
*/
public abstract InputStream getRequestBody() throws IOException;
/**
* Returns a stream to which the response body must be
* written. {@link #setStatus}) must be called prior to calling
* this method. Multiple calls to this method (for the same exchange)
* will return the same stream.
*
* @return the stream to which the response body is written
* @throws IOException if any i/o error during response processing
*/
public abstract OutputStream getResponseBody() throws IOException;
/**
* Sets the HTTP status code for the response.
*
*
* This method must be called prior to calling {@link #getResponseBody}.
*
* @param status the response code to send
* @see #getResponseBody
*/
public abstract void setStatus(int status);
/**
* Returns the unresolved address of the remote entity invoking
* this request.
*
* @return the InetSocketAddress of the caller
*/
public abstract InetSocketAddress getRemoteAddress();
/**
* Returns the unresolved local address on which the request was received.
*
* @return the InetSocketAddress of the local interface
*/
public abstract InetSocketAddress getLocalAddress();
/**
* Returns the protocol string from the request in the form
* protocol/majorVersion.minorVersion. For example,
* "HTTP/1.1"
*
* @return the protocol string from the request
*/
public abstract String getProtocol();
/**
* Returns the name of the scheme used to make this request,
* for example: http, or https.
*
* @return name of the scheme used to make this request
*/
public abstract String getScheme();
/**
* Returns the extra path information that follows the web service
* path but precedes the query string in the request URI and will start
* with a "/" character.
*
*
* This can be used for {@link MessageContext#PATH_INFO}
*
* @return decoded extra path information of web service.
* It is the path that comes
* after the web service path but before the query string in the
* request URI
* {@code null} if there is no extra path in the request URI
*/
public abstract String getPathInfo();
/**
* Returns the query string that is contained in the request URI
* after the path.
*
*
* This can be used for {@link MessageContext#QUERY_STRING}
*
* @return undecoded query string of request URI, or
* {@code null} if the request URI doesn't have one
*/
public abstract String getQueryString();
/**
* Returns an attribute that is associated with this
* {@code HttpExchange}. JAX-WS handlers and endpoints may then
* access the attribute via {@link MessageContext}.
*
* Servlet containers must expose {@link MessageContext#SERVLET_CONTEXT},
* {@link MessageContext#SERVLET_REQUEST}, and
* {@link MessageContext#SERVLET_RESPONSE}
* as attributes.
*
*
If the request has been received by the container using HTTPS, the
* following information must be exposed as attributes. These attributes
* are {@link #REQUEST_CIPHER_SUITE}, and {@link #REQUEST_KEY_SIZE}.
* If there is a SSL certificate associated with the request, it must
* be exposed using {@link #REQUEST_X509CERTIFICATE}
*
* @param name attribute name
* @return the attribute value, or {@code null} if the attribute doesn't
* exist
*/
public abstract Object getAttribute(String name);
/**
* Gives all the attribute names that are associated with
* this {@code HttpExchange}.
*
* @return set of all attribute names
* @see #getAttribute(String)
*/
public abstract Set getAttributeNames();
/**
* Returns the {@link Principal} that represents the authenticated
* user for this {@code HttpExchange}.
*
* @return Principal for an authenticated user, or
* {@code null} if not authenticated
*/
public abstract Principal getUserPrincipal();
/**
* Indicates whether an authenticated user is included in the specified
* logical "role".
*
* @param role specifies the name of the role
* @return {@code true} if the user making this request belongs to a
* given role
*/
public abstract boolean isUserInRole(String role);
}