private void evaluateAll(
String pluginName,
Features features,
Set<String> discovered,
BooleanTerm term,
ModuleDeps results,
String comment) {
if (feature != null && discovered != null) {
discovered.add(feature);
}
if (feature == null) {
if (nodeName != null && nodeName.length() > 0) {
results.add(nodeName, new ModuleDepInfo(pluginName, term, comment, true));
}
} else if (!features.contains(feature)) {
BooleanTerm newTerm = term.andWith(new BooleanTerm(new BooleanVar(feature, true)));
trueNode.evaluateAll(pluginName, features, discovered, newTerm, results, comment);
newTerm = term.andWith(new BooleanTerm(new BooleanVar(feature, false)));
falseNode.evaluateAll(pluginName, features, discovered, newTerm, results, comment);
} else {
if (features.isFeature(feature)) {
trueNode.evaluateAll(pluginName, features, discovered, term, results, comment);
} else {
falseNode.evaluateAll(pluginName, features, discovered, term, results, comment);
}
}
}
/**
* Normalizes the current node relative to the path specified in <code>ref</code> and recursively
* normalizes child nodes.
*
* @param ref The reference path to which relative paths are normalized
* @return This object, to allow chaining of toString() as in <code>
* normalized = new HasNode(name).normalize(ref).toString();</code>
*/
public HasNode normalize(String ref) {
if (feature == null) {
nodeName = PathUtil.normalizePaths(ref, new String[] {nodeName})[0];
} else {
trueNode.normalize(ref);
falseNode.normalize(ref);
}
return this;
}
/**
* Adds to <code>result</code> the end point nodes (nodes that specify a module name) for this
* node and all of the child nodes.
*
* @param result The collection that the end point nodes will be added to
*/
public void gatherEndpoints(Collection<HasNode> result) {
if (nodeName != null && nodeName.length() > 0) {
result.add(this);
}
if (trueNode != null) {
trueNode.gatherEndpoints(result);
}
if (falseNode != null) {
falseNode.gatherEndpoints(result);
}
}
/**
* Returns the string representation of this node. This is the same as the string used to
* construct the node, unless the node has been normalized, in which case the output will be the
* normalized representation of the string used to construct this node.
*
* @return The string representation of this node
*/
public String toString() {
if (feature == null) {
return nodeName;
}
String trueName = trueNode.toString(), falseName = falseNode.toString();
if (trueName.length() == 0 && falseName.length() == 0) {
return ""; //$NON-NLS-1$
}
StringBuffer sb = new StringBuffer();
sb.append(feature).append("?").append(trueName); // $NON-NLS-1$
if (falseName.length() > 0) {
sb.append(":").append(falseName); // $NON-NLS-1$
}
return sb.toString();
}
/**
* Evaluate the has plugin for the given set of features.
*
* @param features The features passed to the aggregator.
* @param discovered A map in which all features encountered in the evaluation will be placed.
* This will not necessarily contain all features in the dependency expression. Only the ones
* in the evaluation chain will be included.
* @param coerceUndefinedToFalse If true, then a feature not being defined will be treated the
* same as if the feature were defined with a value of false.
* @return The evaluated resource based on provided features. If a lack of features prevents us
* from being able to determine the resource, then null is returned. If the required features
* are provided but the evaluation results in no module name, then the empty string is
* returned.
*/
public String evaluate(
Features features, Set<String> discovered, boolean coerceUndefinedToFalse) {
if (feature != null && discovered != null) {
discovered.add(feature);
}
if (feature == null) {
return nodeName;
} else if (!coerceUndefinedToFalse && !features.contains(feature)) {
return null;
} else {
if (features.isFeature(feature)) {
return trueNode.evaluate(features, discovered, coerceUndefinedToFalse);
} else {
return falseNode.evaluate(features, discovered, coerceUndefinedToFalse);
}
}
}
/**
* Recursively resolves the current node with the specified features. Any conditionals for
* features contained in <code>features</code> will be replaced with the result of the evaluation.
*
* @param features The features passed to the aggregator.
* @param discovered A map in which all features encountered in the evaluation will be placed.
* This will not necessarily contain all features in the dependency expression. Only the ones
* in the evaluation chain will be included.
* @param coerceUndefinedToFalse If true, then a feature not being defined will be treated the
* same as if the feature were defined with a value of false.
* @return this node
*/
public HasNode resolve(
Features features, Set<String> discovered, boolean coerceUndefinedToFalse) {
if (feature != null && discovered != null) {
discovered.add(feature);
}
if (feature != null && (features.contains(feature) || coerceUndefinedToFalse)) {
replaceWith(features.isFeature(feature) ? trueNode : falseNode);
resolve(features, discovered, coerceUndefinedToFalse);
}
if (trueNode != null) {
trueNode.resolve(features, discovered, coerceUndefinedToFalse);
}
if (falseNode != null) {
falseNode.resolve(features, discovered, coerceUndefinedToFalse);
}
return this;
}