protected Attribute setAttributeContent(
Attribute target,
StepList xpath,
Object value,
String id,
AttributeType targetNodeType,
boolean isXlinkRef,
Expression sourceExpression,
Object source,
final Map<Name, Expression> clientProperties,
boolean ignoreXlinkHref) {
Attribute instance = null;
Map<Name, Expression> properties = new HashMap<Name, Expression>(clientProperties);
if (ignoreXlinkHref) {
properties.remove(XLINK_HREF_NAME);
}
if (properties.containsKey(XLINK_HREF_NAME) && resolveDepth > 0) {
// local resolve
String refid =
referenceToIdentifier(getValue(properties.get(XLINK_HREF_NAME), source).toString());
if (refid != null) {
final Hints hints = new Hints();
if (resolveDepth > 1) {
hints.put(Hints.RESOLVE, ResolveValueType.ALL);
// only the top-level resolve thread should monitor timeout
hints.put(Hints.RESOLVE_TIMEOUT, Integer.MAX_VALUE);
hints.put(Hints.ASSOCIATION_TRAVERSAL_DEPTH, resolveDepth - 1);
} else {
hints.put(Hints.RESOLVE, ResolveValueType.NONE);
}
// let's try finding it
FeatureFinder finder = new FeatureFinder(refid, hints);
// this will be null if joining or sleeping is interrupted
Feature foundFeature = null;
if (resolveTimeOut == Integer.MAX_VALUE) {
// not the top-level resolve thread so do not monitor timeout
finder.run();
foundFeature = finder.getFeature();
} else {
Thread thread = new Thread(finder);
long startTime = System.currentTimeMillis();
thread.start();
try {
while (thread.isAlive()
&& (System.currentTimeMillis() - startTime) / 1000 < resolveTimeOut) {
Thread.sleep(RESOLVE_TIMEOUT_POLL_INTERVAL);
}
thread.interrupt();
// joining ensures synchronisation
thread.join();
foundFeature = finder.getFeature();
} catch (InterruptedException e) {
// clean up as best we can
thread.interrupt();
throw new RuntimeException("Interrupted while resolving resource " + refid);
}
}
if (foundFeature != null) {
// found it
instance =
xpathAttributeBuilder.set(
target,
xpath,
Collections.singletonList(foundFeature),
id,
targetNodeType,
false,
sourceExpression);
properties.remove(XLINK_HREF_NAME);
}
}
}
if (instance == null) {
instance =
xpathAttributeBuilder.set(
target, xpath, value, id, targetNodeType, false, sourceExpression);
}
setClientProperties(instance, source, properties);
return instance;
}