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send.go
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send.go
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//
// Copyright © 2011-2018 Guy M. Allard
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package stompngo
/*
Send a STOMP MESSAGE.
Headers MUST contain a "destination" header key.
The message body (payload) is a string, which may be empty.
Example:
h := stompngo.Headers{stompngo.HK_DESTINATION, "/queue/mymessages"}
m := "My message"
e := c.Send(h, m)
if e != nil {
// Do something sane ...
}
*/
func (c *Connection) Send(h Headers, b string) error {
c.log(SEND, "start", h)
if !c.connected {
return ECONBAD
}
e := checkHeaders(h, c.Protocol())
if e != nil {
return e
}
if _, ok := h.Contains(HK_DESTINATION); !ok {
return EREQDSTSND
}
ch := h.Clone()
f := Frame{SEND, ch, []uint8(b)}
r := make(chan error)
if e = c.writeWireData(wiredata{f, r}); e != nil {
return e
}
e = <-r
c.log(SEND, "end", ch)
return e // nil or not
}