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package com.sun.jersey.api.core;

import com.sun.jersey.api.representation.Form;
import com.sun.jersey.core.header.QualitySourceMediaType;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.net.URI;
import java.util.List;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.PathSegment;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.core.UriBuilder;

/**
 * An abstraction of a HTTP request.
 */
public interface HttpRequestContext extends HttpHeaders, Request, SecurityContext, Traceable {
    /**
     * Get the base URI of the application. URIs of root resource classes
     * are all relative to this base URI.
     * @return the base URI of the application
     */
    URI getBaseUri();
       
    /**
     * Get the base URI of the application in the form of a UriBuilder.
     * @return a UriBuilder initialized with the base URI of the application.
     */
    UriBuilder getBaseUriBuilder();
    
    /**
     * Get the absolute request URI. This includes query parameters and
     * any supplied fragment.
     * @return the absolute request URI
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    URI getRequestUri();
    
    /**
     * Get the absolute request URI in the form of a UriBuilder.
     * @return a UriBuilder initialized with the absolute request URI
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    UriBuilder getRequestUriBuilder();
    
    /**
     * Get the absolute path of the request. This includes everything preceding
     * the path (host, port etc) but excludes query parameters and fragment.
     * This is a shortcut for
     * uriInfo.getBase().resolve(uriInfo.getPath()).
     * @return the absolute path of the request
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    URI getAbsolutePath();
    
    /**
     * Get the absolute path of the request in the form of a UriBuilder.
     * This includes everything preceding the path (host, port etc) but excludes
     * query parameters and fragment.
     * @return a UriBuilder initialized with the absolute path of the request
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    UriBuilder getAbsolutePathBuilder();
    
    /**
     * Get the path of the current request relative to the base URI as
     * a string. All sequences of escaped octets are decoded, equivalent to
     * getPath(true).
     * 
     * @return the relative URI path
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    String getPath();
    
    /**
     * Get the path of the current request relative to the base URI as
     * a string.
     *
     * @param decode controls whether sequences of escaped octets are decoded
     * (true) or not (false).
     * @return the relative URI path
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    String getPath(boolean decode);

    /**
     * Get the path of the current request relative to the base URI as a 
     * list of {@link PathSegment}. This method is useful when the
     * path needs to be parsed, particularly when matrix parameters may be
     * present in the path. All sequences of escaped octets in path segments
     * and matrix parameter names and values are decoded,
     * equivalent to getPathSegments(true).
     * @return an unmodifiable list of {@link PathSegment}. The matrix parameter
     * map of each path segment is also unmodifiable.
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     * @see PathSegment
     * @see Matrix URIs
     */
    List getPathSegments();
    
    /**
     * Get the path of the current request relative to the base URI as a 
     * list of {@link PathSegment}. This method is useful when the
     * path needs to be parsed, particularly when matrix parameters may be
     * present in the path.
     * @param decode controls whether sequences of escaped octets in path segments
     * and matrix parameter names and values are decoded (true) or not (false).
     * @return an unmodifiable list of {@link PathSegment}. The matrix parameter
     * map of each path segment is also unmodifiable.
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     * @see PathSegment
     * @see Matrix URIs
     */
    List getPathSegments(boolean decode);

    /**
     * Get the URI query parameters of the current request.
     * All sequences of escaped octets in parameter names and values are decoded,
     * equivalent to getQueryParameters(true).
     * @return an unmodifiable map of query parameter names and values
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    MultivaluedMap getQueryParameters();
    
    /**
     * Get the URI query parameters of the current request.
     * @param decode controls whether sequences of escaped octets in parameter
     * names and values are decoded (true) or not (false).
     * @return an unmodifiable map of query parameter names and values
     * @throws java.lang.IllegalStateException if called outside the scope of a request
     */
    MultivaluedMap getQueryParameters(boolean decode);

    /**
     * Get a HTTP header value.
     * 
     * @param name the HTTP header
     * @return the HTTP header value. If the HTTP header is not present then
     * null is returned. If the HTTP header is present but has no value then
     * the empty string is returned. If the HTTP header is present more than
     * once then the values of joined together and separated by a ',' character.
     */
    String getHeaderValue(String name);

    /**
     * Select the first media type, from a list of media types, that is most
     * acceptable according to the requested acceptable media types.
     *
     * @deprecated will stay in Jersey 1.x, use {@link Request#selectVariant(java.util.List)}
     *             as an alternative.
     * @param mediaTypes the list of media types
     * @return the most acceptable media type, or null if no media type
     *         was found to be acceptable.
     */
    @Deprecated
    MediaType getAcceptableMediaType(List mediaTypes);
        
    /**
     * Get a list of media types that are acceptable for the response.
     *
     * @deprecated will stay in Jersey 1.x, use {@link Request#selectVariant(java.util.List)}
     *             as an alternative.
     * @param priorityMediaTypes the list of media types that take priority,
     *        ordered according to the quality source parameter, "qs" as the
     *        primary key.
     * @return a list of requested response media types sorted according
     *         to highest relative quality value, which is product of the
     *         quality parameter, q, of an acceptable media type, and the 
     *         quality source parameter, qs, of matching media type.
     */
    @Deprecated
    List getAcceptableMediaTypes(List priorityMediaTypes);

    /**
     * Get the cookie name value map.
     * 
     * @return the cookie name value map.
     */
    MultivaluedMap getCookieNameValueMap();
    
    /**
     * Get the request entity, returns null if the request does not
     * contain an entity body.
     * 
     * @param type the type of entity
     * @return the request entity or null
     * @throws WebApplicationException if the content of the request
     * cannot be mapped to an entity of the requested type
     */
     T getEntity(Class type) throws WebApplicationException;
        
    /**
     * Get the request entity, returns null if the request does not
     * contain an entity body.
     * 
     * @param type the type of entity
     * @param genericType type the generic type of entity, it is the responsibility
     *        of the callee to ensure that the type and generic type are
     *        consistent otherwise the behaviour of this method is undefined.
     * @param as the annotations associated with the type
     * @return the request entity or null
     * @throws WebApplicationException if the content of the request
     * cannot be mapped to an entity of the requested type
     */
     T getEntity(Class type, Type genericType, Annotation[] as) 
            throws WebApplicationException;

    /**
     * Get the form parameters of the request entity.
     * 

* This method will ensure that the request entity is buffered * such that it may be consumed by the application. * * @return the form parameters, if there is a request entity and the * content type is "application/x-www-form-urlencoded", otherwise an * instance containing no parameters will be returned. */ Form getFormParameters(); }





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