Github user grkvlt commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/229#discussion_r69508940
--- Diff:
core/src/main/java/org/apache/brooklyn/core/objs/BasicSpecParameter.java ---
@@ -384,5 +387,73 @@ public static WeightedParameter
getFieldConfig(ConfigKey<?> config, Field config
}
}
+ /**
+ * Returns true if the {@link SpecParameter parameter name} is the
same as
+ * that on the specified paramater.
+ */
+ protected static Predicate<SpecParameter<?>> sameName(final
SpecParameter<?> param) {
+ return new Predicate<SpecParameter<?>>() {
+ @Override
+ public boolean apply(SpecParameter<?> input) {
+ return
input.getConfigKey().getName().equals(param.getConfigKey().getName());
+ }
+ };
+ }
+
+ /**
+ * Returns true if the {@link SpecParameter#getLabel() label} is the
same as
+ * the specified string.
+ */
+ public static Predicate<SpecParameter<?>> labelEqualTo(final String
label) {
+ return new Predicate<SpecParameter<?>>() {
+ @Override
+ public boolean apply(SpecParameter<?> input) {
+ return input.getLabel().equals(label);
+ }
+ };
+ }
+
+ /**
+ * Returns true if the {@link ConfigKey#getName() config key name} is
the same
+ * as the specified string.
+ */
+ public static Predicate<SpecParameter<?>> nameEqualTo(final String
name) {
+ return new Predicate<SpecParameter<?>>() {
+ @Override
+ public boolean apply(SpecParameter<?> input) {
+ return input.getConfigKey().getName().equals(name);
+ }
+ };
+ }
+
+ /**
+ * Adds the given list of {@link SpecParameter parameters} to the
provided
+ * {@link AbstractBrooklynObjectSpec spec}. Inherits parent parameters
except
+ * where there is an existing {@link ConfigKey config key}.
+ * <p>
+ * Implemented by explicitly replacing the existing parameters with an
+ * updated list.
+ *
+ * @see EntitySpec#parameters(List)
+ */
+ public static void addParameters(AbstractBrooklynObjectSpec<?, ?>
spec, List<? extends SpecParameter<?>> explicitParams,
BrooklynClassLoadingContext loader) {
+ if (explicitParams.size() > 0) {
+ List<SpecParameter<?>> currentParams =
MutableList.copyOf(spec.getParameters());
+ Map<ConfigKey<?>, ?> currentConfig = spec.getConfig();
+ for (final SpecParameter<?> param : explicitParams) {
+ Optional<ConfigKey<?>> configExists =
Iterables.tryFind(currentConfig.keySet(),
ConfigPredicates.nameEqualTo(param.getConfigKey().getName()));
+ if (!configExists.isPresent()) {
+ Optional<SpecParameter<?>> paramExists =
Iterables.tryFind(currentParams, sameName(param));
+ if (paramExists.isPresent()) {
+ currentParams.remove(paramExists.get());
--- End diff --
@aledsage not sure, can you suggest anything?
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