Class RequestEntity

  • All Implemented Interfaces:
    Request, RequestHeader, RequestLine

    class RequestEntity
    extends RequestMessage
    implements Request
    This object is used to represent a HTTP request. This defines the attributes that a HTTP request has such as a request line and the headers that come with the message header.

    The Request is used to provide an interface to the HTTP InputStream and message header. The stream can have certain characteristics, these characteristics are available by this object. The Request provides methods that allow the InputStream's semantics to be known, for example if the stream is keep-alive or if the stream has a length.

    The Request origin is also retrievable from the Request as is the attributes Map object which defines specific connection attributes. And acts as a simple model for the request transaction.

    It is important to note that the Request controls the processing of the HTTP pipeline. The next HTTP request is not processed until the request has read all of the content body within the InputStream. The stream must be fully read or closed for the next request to be processed.

    • Field Detail

      • certificate

        private Certificate certificate
        This is the certificate associated with the connection.
      • builder

        private QueryBuilder builder
        This will create the form object using the query and body.
      • channel

        private Channel channel
        This channel represents the connected pipeline used.
      • query

        private Query query
        The query contains all the parameters for the request.
      • body

        private Body body
        The body contains the message content sent by the client.
      • map

        private java.util.Map map
        This is used to contain the values for this request.
      • time

        private long time
        This is the time at which the request is ready to be used.
    • Constructor Detail

      • RequestEntity

        public RequestEntity​(ResponseObserver observer,
                             Entity entity)
        Constructor for the RequestEntity object. This is used to create a request that contains all the parts sent by the client, including the headers and the request body. Each of the request elements are accessible through this object in a convenient manner, all parts and parameters, as well as cookies can be accessed and used without much effort.
        Parameters:
        observer - this is the observer used to monitor events
        entity - this is the entity that was sent by the client
    • Method Detail

      • isSecure

        public boolean isSecure()
        This is used to determine if the request has been transferred over a secure connection. If the protocol is HTTPS and the content is delivered over SSL then the request is considered to be secure. Also the associated response will be secure.
        Specified by:
        isSecure in interface Request
        Returns:
        true if the request is transferred securely
      • isKeepAlive

        public boolean isKeepAlive()
        This is a convenience method that is used to determine whether or not this message has the Connection header with the close token. If the close token is present then this stream is not a keep-alive connection. However if this has no Connection header then the keep alive status is determined by the HTTP version, that is HTTP/1.1 is keep alive by default, HTTP/1.0 has the connection close by default.
        Specified by:
        isKeepAlive in interface Request
        Returns:
        returns true if this is keep alive connection
      • getRequestTime

        public long getRequestTime()
        This is the time in milliseconds when the request was first read from the underlying socket. The time represented here represents the time collection of this request began. This does not necessarily represent the time the bytes arrived on the receive buffers as some data may have been buffered.
        Specified by:
        getRequestTime in interface Request
        Returns:
        this represents the time the request arrived at
      • getChannel

        public Channel getChannel()
        This provides the underlying channel for the request. It contains the TCP socket channel and various other low level components. Typically this will only ever be needed when there is a need to switch protocols.
        Specified by:
        getChannel in interface Request
        Returns:
        the underlying channel for this request
      • getClientCertificate

        public Certificate getClientCertificate()
        This is used to acquire the SSL certificate used when the server is using a HTTPS connection. For plain text connections or connections that use a security mechanism other than SSL this will be null. This is only available when the connection makes specific use of an SSL engine to secure the connection.
        Specified by:
        getClientCertificate in interface Request
        Returns:
        this returns the associated SSL certificate if any
      • getClientAddress

        public java.net.InetSocketAddress getClientAddress()
        This is used to acquire the remote client address. This can be used to acquire both the port and the I.P address for the client. It allows the connected clients to be logged and if require it can be used to perform course grained security.
        Specified by:
        getClientAddress in interface Request
        Returns:
        this returns the client address for this request
      • getClientAddress

        private java.net.InetSocketAddress getClientAddress​(java.net.Socket socket)
        This is used to acquire the remote client address. This can be used to acquire both the port and the I.P address for the client. It allows the connected clients to be logged and if require it can be used to perform course grained security.
        Parameters:
        socket - this is the socket to get the address for
        Returns:
        this returns the client address for this request
      • getContent

        public java.lang.String getContent()
                                    throws java.io.IOException
        This is used to get the content body. This will essentially get the content from the body and present it as a single string. The encoding of the string is determined from the content type charset value. If the charset is not supported this will throw an exception. Typically only text values should be extracted using this method if there is a need to parse that content.
        Specified by:
        getContent in interface Request
        Returns:
        the body content containing the message body
        Throws:
        java.io.IOException
      • getContent

        public java.lang.String getContent​(ContentType type)
                                    throws java.io.IOException
        This is used to get the content body. This will essentially get the content from the body and present it as a single string. The encoding of the string is determined from the content type charset value. If the charset is not supported this will throw an exception. Typically only text values should be extracted using this method if there is a need to parse that content.
        Parameters:
        type - this is the content type used with the request
        Returns:
        the input stream containing the message body
        Throws:
        java.io.IOException
      • getInputStream

        public java.io.InputStream getInputStream()
                                           throws java.io.IOException
        This is used to read the content body. The specifics of the data that is read from this InputStream can be determined by the getContentLength method. If the data sent by the client is chunked then it is decoded, see RFC 2616 section 3.6. Also multipart data is available as Part objects however the raw content of the multipart body is still available.
        Specified by:
        getInputStream in interface Request
        Returns:
        the input stream containing the message body
        Throws:
        java.io.IOException
      • getByteChannel

        public java.nio.channels.ReadableByteChannel getByteChannel()
                                                             throws java.io.IOException
        This is used to read the content body. The specifics of the data that is read from this ReadableByteChannel can be determined by the getContentLength method. If the data sent by the client is chunked then it is decoded, see RFC 2616 section 3.6. This stream will never provide empty reads as the content is internally buffered, so this can do a full read.
        Specified by:
        getByteChannel in interface Request
        Returns:
        this returns the byte channel used to read the content
        Throws:
        java.io.IOException
      • getAttributes

        public java.util.Map getAttributes()
        This can be used to retrieve the response attributes. These can be used to keep state with the response when it is passed to other systems for processing. Attributes act as a convenient model for storing objects associated with the response. This also inherits attributes associated with the client connection.
        Specified by:
        getAttributes in interface Request
        Returns:
        the attributes that have been added to this request
      • getAttribute

        public java.lang.Object getAttribute​(java.lang.Object key)
        This is used as a shortcut for acquiring attributes for the response. This avoids acquiring the attribute Map in order to retrieve the attribute directly from that object. The attributes contain data specific to the response.
        Specified by:
        getAttribute in interface Request
        Parameters:
        key - this is the key of the attribute to acquire
        Returns:
        this returns the attribute for the specified name
      • getQuery

        public Query getQuery()
        This method is used to acquire the query part from the HTTP request URI target and a form post if it exists. Both the query and the form post are merge together in a single query.
        Specified by:
        getQuery in interface RequestLine
        Overrides:
        getQuery in class RequestMessage
        Returns:
        the query associated with the HTTP target URI
      • getParameter

        public java.lang.String getParameter​(java.lang.String name)
        This is used to provide quick access to the parameters. This avoids having to acquire the request Form object. This basically acquires the parameters object and invokes the getParameters method with the given name.
        Specified by:
        getParameter in interface Request
        Parameters:
        name - this is the name of the parameter value
      • getPart

        public Part getPart​(java.lang.String name)
        This method is used to acquire a Part from the HTTP request using a known name for the part. This is typically used when there is a file upload with a multipart POST request. All parts that are not files can be acquired as string values from the attachment object.
        Specified by:
        getPart in interface Request
        Parameters:
        name - this is the name of the part object to acquire
        Returns:
        the named part or null if the part does not exist
      • getParts

        public java.util.List<Part> getParts()
        This method is used to get all Part objects that are associated with the request. Each attachment contains the body and headers associated with it. If the request is not a multipart POST request then this will return an empty list.
        Specified by:
        getParts in interface Request
        Returns:
        the list of parts associated with this request