HttpMessage

All Known Subinterfaces:

HttpRequest, HttpResponse

All Known Implementing Classes:

DefaultHttpResponse, HttpRequestImpl
```
public interface HttpMessage
```
An HTTP message, the ancestor of HTTP request & response.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`containsHeader(java.lang.String name)`	Tells if the message contains some header
`java.lang.String`	`getContentType()`	Gets the `Content-Type` header of the message.
`java.lang.String`	`getHeader(java.lang.String name)`	Returns the value of the HTTP header with the specified name.
`java.util.Map<java.lang.String,java.lang.String>`	`getHeaders()`
`HttpVersion`	`getProtocolVersion()`	The HTTP version of the message
`boolean`	`isKeepAlive()`

- Method Detail
  - getProtocolVersion
```
HttpVersion getProtocolVersion()
```
    The HTTP version of the message
    
    Returns:
    
    HTTP/1.0 or HTTP/1.1
  - getContentType
```
java.lang.String getContentType()
```
    Gets the Content-Type header of the message.
    
    Returns:
    
    The content type.
  - isKeepAlive
```
boolean isKeepAlive()
```
    Returns:
    
    true if this message enables keep-alive connection.
  - getHeader
```
java.lang.String getHeader(java.lang.String name)
```
    Returns the value of the HTTP header with the specified name. If more than one header with the given name is associated with this request, one is selected and returned.
    
    Parameters:
    
    name - The name of the desired header
    
    Returns:
    
    The header value - or null if no header is found with the specified name
  - containsHeader
```
boolean containsHeader(java.lang.String name)
```
    Tells if the message contains some header
    
    Parameters:
    
    name - the Header's name we are looking for
    
    Returns:
    
    true if the HTTP header with the specified name exists in this request.
  - getHeaders
```
java.util.Map<java.lang.String,java.lang.String> getHeaders()
```
    Returns:
    
    a read-only Map of HTTP headers whose key is a String and whose value is a String s.