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WIP Introspection. XML Generation.

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This commit is contained in:
Tristan Hume 2015-05-02 21:36:11 -04:00
parent 2af2db0020
commit f8e389393f
1 changed files with 73 additions and 6 deletions
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77
source/ddbus/router.d
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@ -8,6 +8,7 @@ import std.typecons;
import core.memory;
import std.array;
import std.algorithm;
import std.format;
struct MessagePattern {
string path;
@ -44,6 +45,15 @@ struct MessagePattern {
}
}
unittest {
import dunit.toolkit;
auto msg = Message("org.example.test", "/test","org.example.testing","testMethod");
auto patt= new MessagePattern(msg);
patt.assertEqual(patt);
patt.signal.assertFalse();
patt.path.assertEqual("/test");
}
struct MessageHandler {
alias HandlerFunc = void delegate(Message call, Connection conn);
HandlerFunc func;
@ -60,6 +70,13 @@ class MessageRouter {
return false;
auto pattern = MessagePattern(msg);
// import std.stdio; debug writeln("Handling ", pattern);
if(pattern.iface == "org.freedesktop.DBus.Introspectable" &&
pattern.method == "Introspect" && !pattern.signal) {
handleIntrospect(pattern.path, conn);
return true;
}
MessageHandler* handler = (pattern in callTable);
if(handler is null) return false;
@ -98,6 +115,50 @@ class MessageRouter {
MessageHandler handleStruct = {func: &handlerWrapper, argSig: args, retSig: ret};
callTable[patt] = handleStruct;
}
static string introspectHeader = `
<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node name="%s">`;
string introspectXML(string path) {
auto methods = callTable.byKey().filter!(a => (a.path == path) && !a.signal)().array()
// .schwartzSort!((a) => a.iface, "a<b")();
.sort!((a,b) => a.iface < b.iface)().release();
auto ifaces = groupBy!((a) => a.iface)(methods);
auto app = appender!string;
formattedWrite(app,introspectHeader,path);
foreach(iface; ifaces) {
formattedWrite(app,`<interface name="%s">`,iface.front.iface);
foreach(methodPatt; iface) {
formattedWrite(app,`<method name="%s">`,methodPatt.method);
auto handler = callTable[methodPatt];
foreach(arg; handler.argSig) {
formattedWrite(app,`<arg type="%s" direction="in"/>`,arg);
}
foreach(arg; handler.retSig) {
formattedWrite(app,`<arg type="%s" direction="out"/>`,arg);
}
app.put("</method>");
}
app.put("</interface>");
}
string childPath = path ~ "/";
auto children = callTable.byKey().filter!(a => (a.path.startsWith(childPath)) && !a.signal)()
.map!((s) => s.path.chompPrefix(childPath))
.map!((s) => s.splitter('/').front);
foreach(child; children) {
formattedWrite(app,`<node name="%s"/>`,child);
}
app.put("</node>");
return app.data;
}
void handleIntrospect(string path, Connection conn) {
// TODO
}
}
extern(C) private DBusHandlerResult filterFunc(DBusConnection *dConn, DBusMessage *dMsg, void *routerP) {
@ -126,9 +187,15 @@ void registerRouter(Connection conn, MessageRouter router) {
unittest{
import dunit.toolkit;
auto msg = Message("org.example.test", "/test","org.example.testing","testMethod");
auto patt= new MessagePattern(msg);
patt.assertEqual(patt);
patt.signal.assertFalse();
patt.path.assertEqual("/test");
auto router = new MessageRouter();
// set up test messages
MessagePattern patt = MessagePattern("/root","ca.thume.test","test");
router.setHandler!(int,int)(patt,(int p) {return 6;});
patt = MessagePattern("/root","ca.thume.tester","lolwut");
router.setHandler!(void,int,string)(patt,(int p, string p2) {});
patt = MessagePattern("/root/wat","ca.thume.tester","lolwut");
router.setHandler!(int,int)(patt,(int p) {return 6;});
// import std.stdio;
// writeln(router.introspectXML("/root"));
}