Package ratpack.http

Interface Headers

  • All Known Subinterfaces:
    MutableHeaders

    public interface Headers
    An immutable set of HTTP headers.
    • Method Summary

      All Methods Instance Methods Abstract Methods Default Methods 
      Modifier and Type Method Description
      MultiValueMap<java.lang.String,​java.lang.String> asMultiValueMap()  
      boolean contains​(java.lang.CharSequence name)
      Checks whether a header has been specified for the given value.
      boolean contains​(java.lang.String name)
      Checks whether a header has been specified for the given value.
      java.lang.String get​(java.lang.CharSequence name)
      Returns the header value with the specified header name.
      java.lang.String get​(java.lang.String name)
      Returns the header value with the specified header name.
      java.util.List<java.lang.String> getAll​(java.lang.CharSequence name)
      Returns all of the header values with the specified header name.
      java.util.List<java.lang.String> getAll​(java.lang.String name)
      Returns all of the header values with the specified header name.
      java.util.Date getDate​(java.lang.CharSequence name)
      Returns the header value as a date with the specified header name.
      java.util.Date getDate​(java.lang.String name)
      Returns the header value as a date with the specified header name.
      default java.time.Instant getInstant​(java.lang.CharSequence name)
      Returns the header value as an instant with the specified header name.
      java.util.Set<java.lang.String> getNames()
      All header names.
      io.netty.handler.codec.http.HttpHeaders getNettyHeaders()
      Returns the headers in their Netty compliant form.
    • Method Detail

      • get

        @Nullable
        java.lang.String get​(java.lang.CharSequence name)
        Returns the header value with the specified header name.

        If there is more than one header value for the specified header name, the first value is returned.

        Parameters:
        name - The case insensitive name of the header to get retrieve the first value of
        Returns:
        the header value or null if there is no such header
      • get

        @Nullable
        java.lang.String get​(java.lang.String name)
        Returns the header value with the specified header name.

        If there is more than one header value for the specified header name, the first value is returned.

        Parameters:
        name - The case insensitive name of the header to get retrieve the first value of
        Returns:
        the header value or null if there is no such header
      • getDate

        @Nullable
        java.util.Date getDate​(java.lang.CharSequence name)
        Returns the header value as a date with the specified header name.

        If there is more than one header value for the specified header name, the first value is returned.

        Parameters:
        name - The case insensitive name of the header to get retrieve the first value of
        Returns:
        the header value as a date or null if there is no such header or the header value is not a valid date format
      • getInstant

        @Nullable
        default java.time.Instant getInstant​(java.lang.CharSequence name)
        Returns the header value as an instant with the specified header name.

        If there is more than one header value for the specified header name, the first value is returned.

        Parameters:
        name - the case insensitive name of the header to get retrieve the first value of
        Returns:
        the header value as an instant or null if there is no such header or the header value is not a valid date format
        Since:
        1.4
      • getDate

        @Nullable
        java.util.Date getDate​(java.lang.String name)
        Returns the header value as a date with the specified header name.

        If there is more than one header value for the specified header name, the first value is returned.

        Parameters:
        name - The case insensitive name of the header to get retrieve the first value of
        Returns:
        the header value as a date or null if there is no such header or the header value is not a valid date format
      • getAll

        java.util.List<java.lang.String> getAll​(java.lang.CharSequence name)
        Returns all of the header values with the specified header name.
        Parameters:
        name - The case insensitive name of the header to retrieve all of the values of
        Returns:
        the List of header values, or an empty list if there is no such header
      • getAll

        java.util.List<java.lang.String> getAll​(java.lang.String name)
        Returns all of the header values with the specified header name.
        Parameters:
        name - The case insensitive name of the header to retrieve all of the values of
        Returns:
        the List of header values, or an empty list if there is no such header
      • contains

        boolean contains​(java.lang.CharSequence name)
        Checks whether a header has been specified for the given value.
        Parameters:
        name - The name of the header to check the existence of
        Returns:
        True if there is a header with the specified header name
      • contains

        boolean contains​(java.lang.String name)
        Checks whether a header has been specified for the given value.
        Parameters:
        name - The name of the header to check the existence of
        Returns:
        True if there is a header with the specified header name
      • getNames

        java.util.Set<java.lang.String> getNames()
        All header names.
        Returns:
        The names of all headers that were sent
      • getNettyHeaders

        io.netty.handler.codec.http.HttpHeaders getNettyHeaders()
        Returns the headers in their Netty compliant form.

        Use of this method should be avoided, in favor of using the other methods of this interface.

        Returns:
        the headers in their Netty compliant form
      • asMultiValueMap

        MultiValueMap<java.lang.String,​java.lang.String> asMultiValueMap()