/**
* set the value, update apform and the platform, notify managers and propagates to the members,
* recursively
*
* @param com the component on which ot set the attribute
* @param attr attribute name
* @param value attribute value
*/
private void propagate(String attr, Object value) {
if (value == null) {
return;
}
Object oldValue = get(attr);
if (oldValue != null && oldValue.equals(value.toString())) {
return;
}
// Change value
put(attr, value);
// Notify the execution platform
if (get(attr) == value) {
getApformComponent().setProperty(attr, value.toString());
}
/*
* notify property managers
*/
if (oldValue == null) {
ApamManagers.notifyAttributeAdded(this, attr, value.toString());
} else {
ApamManagers.notifyAttributeChanged(this, attr, value.toString(), oldValue.toString());
}
// Propagate to members recursively
for (Component member : getMembers()) {
((ComponentImpl) member).propagate(attr, value);
}
}
/**
* Warning: to be used only by Apform for removing internal attributes. Only Inhibits the message
* "Attribute " + attr + " is an program field attribute and cannot be removed.");
*/
public boolean removeProperty(String attr, boolean forced) {
String oldValue = getProperty(attr);
if (oldValue == null) {
logger.error("ERROR: \"" + attr + "\" not instanciated");
return false;
}
if (Attribute.isFinalAttribute(attr)) {
logger.error("ERROR: \"" + attr + "\" is a final attribute");
return false;
}
if (Attribute.isReservedAttributePrefix(attr)) {
logger.error("ERROR: \"" + attr + "\" is a reserved attribute");
return false;
}
PropertyDefinition propDef = getAttrDefinition(attr);
if (propDef != null && propDef.getField() != null && !forced) {
logger.error(
"In " + this + " attribute " + attr + " is a program field and cannot be removed.");
return false;
}
if (getGroup() != null && getGroup().getProperty(attr) != null) {
logger.error("In " + this + " attribute " + attr + " inherited and cannot be removed.");
return false;
}
// it is ok, remove it and propagate to members, recursively
propagateRemove(attr);
// TODO. Should we notify at all levels ?
ApamManagers.notifyAttributeRemoved(this, attr, oldValue);
return true;
}
@Override
public boolean createLink(
Component to, RelToResolve dep, boolean hasConstraints, boolean promotion) {
// Not a relation : a find
if (!dep.isRelation()) {
return true;
}
if (CST.isFinalRelation(dep.getName())) {
logger.error("CreateLink: cannot create predefined relation " + dep.getName());
return false;
}
if ((to == null) || (dep == null)) {
logger.error("CreateLink: Source or target are null ");
return false;
}
if (!promotion && !canSee(to)) {
logger.error("CreateLink: Source " + this + " does not see its target " + to);
return false;
}
if (this.getKind() != dep.getSourceKind()) {
logger.error(
"CreateLink: Source kind "
+ getKind()
+ " is not compatible with relation sourceType "
+ dep.getSourceKind());
return false;
}
if (to.getKind() != dep.getTargetKind()) {
logger.error(
"CreateLink: Target kind "
+ to.getKind()
+ " is not compatible with relation targetType "
+ dep.getTargetKind());
return false;
}
if (hasConstraints && !dep.matchRelationConstraints(to)) {
logger.error("CreateLink: Target does not satisfies the constraints");
return false;
}
String depName = dep.getName();
for (Link link : links) { // check if it already exists
if ((link.getDestination() == to) && link.getName().equals(depName)) {
// It exists, do nothing.
return true;
}
}
// creation
if (!getApformComponent().checkLink(to, depName)) {
logger.error(
"CreateLink: INTERNAL ERROR: link from "
+ this
+ " to "
+ to
+ " could not be created in the real instance.");
return false;
}
Link link = new LinkImpl(this, to, dep, hasConstraints, promotion);
links.add(link);
((ComponentImpl) to).invlinks.add(link);
getApformComponent().setLink(to, depName);
// Notify Dynamic managers that a new link has been created
for (DynamicManager manager : ApamManagers.getDynamicManagers()) {
manager.addedLink(link);
}
return true;
}