func parseNode(text, context string, graph bh.SignalGraphTypeIf) (job *PasteJob, ok bool) {
xmln := backend.XmlNode{}
_, xmlerr := xmln.Read([]byte(text))
if xmlerr != nil {
return
}
nodes := graph.Nodes()
for true {
valid := true
for _, reg := range nodes {
if reg.Name() == xmln.NName {
valid = false
}
}
if valid {
break
}
xmln.NName = createNextNameCandidate(xmln.NName)
}
_, validType := freesp.GetNodeTypeByName(xmln.NType)
var njob *NewElementJob
switch {
case validType:
njob = NewElementJobNew(context, eNode)
njob.input[iNodeName] = xmln.NName
njob.input[iNodeTypeSelect] = xmln.NType
case len(xmln.InPort) == 0:
if len(xmln.OutPort) == 0 {
fmt.Printf("parseNode error: no ports.\n")
return
}
njob = NewElementJobNew(context, eInputNode)
njob.input[iInputNodeName] = xmln.NName
njob.input[iInputTypeSelect] = xmln.OutPort[0].PType // TODO
case len(xmln.OutPort) == 0:
njob = NewElementJobNew(context, eOutputNode)
njob.input[iOutputNodeName] = xmln.NName
njob.input[iOutputTypeSelect] = xmln.InPort[0].PType // TODO
default:
if !validType {
fmt.Printf("parseNode error: node type %s not registered.\n", xmln.NType)
return
}
// TODO: Create node type??
njob = NewElementJobNew(context, eNode)
njob.input[iNodeName] = xmln.NName
njob.input[iNodeTypeSelect] = xmln.NType
}
job = PasteJobNew()
job.context = context
job.newElements = append(job.newElements, njob)
ok = true
return
}
func TestGraph(t *testing.T) {
case1 := []struct {
library, graph string
nodes, connections int
}{
{`<library xmlns="http://www.freesp.de/xml/freeSP" version="1.0">
<signal-type name="s1" scope="" mode="" c-type="" message-id=""></signal-type>
<node-type name="Test">
<intype port="" type="s1"></intype>
<outtype port="" type="s1"></outtype>
</node-type>
</library>
`, `<?xml version="1.0" encoding="UTF-8"?>
<signal-graph xmlns="http://www.freesp.de/xml/freeSP" version="1.0">
<nodes>
<input name="sensor">
<outtype type="s1"/>
</input>
<output name="actuator">
<intype type="s1"/>
</output>
<processing-node name="test" type="Test"></processing-node>
</nodes>
<connections>
<connect from="sensor" to="test"/>
<connect from="test" to="actuator"/>
</connections>
</signal-graph>
`, 3, 2},
}
for i, c := range case1 {
freesp.Init()
var l bh.LibraryIf = LibraryNew("test.alml", nil)
buf := copyBuf(c.library)
_, err := l.Read(buf)
if err != nil {
t.Errorf("Testcase %d: Failed to read from buffer: %v", i, err)
return
}
var sg bh.SignalGraphIf = SignalGraphNew("test.sml", nil)
buf = copyBuf(c.graph)
_, err = sg.Read(buf)
if err != nil {
t.Errorf("Testcase %d: Failed to read from buffer: %v", i, err)
return
}
var st bh.SignalGraphTypeIf = sg.ItsType()
if len(st.Nodes()) != c.nodes {
t.Errorf("Testcase %d: NodeIf count mismatch", i)
return
}
}
}
func SignalGraphTypeUsesNodeType(t bh.SignalGraphTypeIf, nt bh.NodeTypeIf) bool {
for _, n := range t.Nodes() {
if n.ItsType().TypeName() == nt.TypeName() {
return true
}
for _, impl := range n.ItsType().Implementation() {
if impl.ImplementationType() == bh.NodeTypeGraph {
if SignalGraphTypeUsesNodeType(impl.Graph(), nt) {
return true
}
}
}
}
return false
}
func SignalGraphTypeUsesSignalType(t bh.SignalGraphTypeIf, st bh.SignalTypeIf) bool {
for _, n := range t.Nodes() {
for _, p := range n.InPorts() {
if p.SignalType() == st {
return true
}
}
for _, p := range n.OutPorts() {
if p.SignalType() == st {
return true
}
}
for _, impl := range n.ItsType().Implementation() {
if impl.ImplementationType() == bh.NodeTypeGraph {
if SignalGraphTypeUsesSignalType(impl.Graph(), st) {
return true
}
}
}
}
return false
}
func NodeNew(name string, ntype bh.NodeTypeIf, context bh.SignalGraphTypeIf) (ret *node, err error) {
for _, n := range context.Nodes() {
if n.Name() == name {
err = fmt.Errorf("NodeNew error: node '%s' already exists in context.", name)
return
}
}
if len(ntype.InPorts())+len(ntype.OutPorts()) == 0 {
err = fmt.Errorf("NodeNew error: type '%s' has no ports.", ntype.TypeName())
return
}
ret = &node{*gr.PathModePositionerObjectNew(), context, name, ntype,
portListInit(), portListInit(), nil, false}
for _, p := range ntype.InPorts() {
ret.addInPort(p)
}
for _, p := range ntype.OutPorts() {
ret.addOutPort(p)
}
ntype.(*nodeType).addInstance(ret)
return
}
func CreateXmlSignalGraphType(t bh.SignalGraphTypeIf) *backend.XmlSignalGraph {
ret := backend.XmlSignalGraphNew()
for _, l := range t.Libraries() {
ret.Libraries = append(ret.Libraries, *CreateXmlLibraryRef(l.Filename()))
}
for _, n := range t.InputNodes() {
ret.InputNodes = append(ret.InputNodes, *CreateXmlInputNode(n))
}
for _, n := range t.OutputNodes() {
ret.OutputNodes = append(ret.OutputNodes, *CreateXmlOutputNode(n))
}
for _, n := range t.ProcessingNodes() {
ret.ProcessingNodes = append(ret.ProcessingNodes, *CreateXmlProcessingNode(n))
}
for _, n := range t.Nodes() {
for _, p := range n.OutPorts() {
for _, c := range p.Connections() {
conn := p.Connection(c)
ret.Connections = append(ret.Connections, *CreateXmlConnection(conn))
}
}
}
return ret
}