import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
+import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
+import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
import org.opendaylight.yangtools.yang.model.api.Module;
import org.opendaylight.yangtools.yang.model.api.ModuleImport;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.type.LeafrefTypeDefinition;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
return null;
}
- private static SchemaNode findNodeInGrouping(final GroupingDefinition grouping, final Iterable<QName> path) {
+ private static SchemaNode findNodeInGrouping(
+ final GroupingDefinition grouping, final Iterable<QName> path) {
final QName current = Iterables.getFirst(path, null);
if (current == null) {
LOG.debug("Found grouping {}", grouping);
LOG.trace("Looking for path {} in grouping {}", path, grouping);
final DataSchemaNode node = grouping.getDataChildByName(current);
- if (node == null) {
- LOG.debug("No node matching {} found in grouping {}", current, grouping);
- return null;
+
+ if (node != null)
+ return findNode(node, nextLevel(path));
+
+ for (GroupingDefinition groupingDefinition : grouping.getGroupings()) {
+ if (groupingDefinition.getQName().equals(current))
+ return findNodeInGrouping(groupingDefinition, nextLevel(path));
}
- return findNode(node, nextLevel(path));
+ LOG.debug("No node matching {} found in grouping {}", current, grouping);
+ return null;
}
private static SchemaNode findNodeInRpc(final RpcDefinition rpc, final Iterable<QName> path) {
Preconditions.checkArgument(module != null, "Failed to resolve xpath: no module found for prefix %s in module %s",
modulePrefix, parentModule.getName());
- // FIXME: Module should have a QNameModule handle
- return QName.create(module.getNamespace(), module.getRevision(), prefixedName.next());
+ return QName.create(module.getQNameModule(), prefixedName.next());
} else {
return QName.create(parentModule.getNamespace(), parentModule.getRevision(), prefixedPathPart);
}
* Yang Module
* @param relativeXPath
* Non conditional Revision Aware Relative XPath
- * @param leafrefSchemaPath
- * Schema Path for Leafref
+ * @param actualSchemaNode
+ * actual schema node
* @return list of QName
*/
private static Iterable<QName> resolveRelativeXPath(final SchemaContext context, final Module module,
- final RevisionAwareXPath relativeXPath, final SchemaNode leafrefParentNode) {
+ final RevisionAwareXPath relativeXPath, final SchemaNode actualSchemaNode) {
Preconditions.checkArgument(context != null, "Schema Context reference cannot be NULL");
Preconditions.checkArgument(module != null, "Module reference cannot be NULL");
Preconditions.checkArgument(relativeXPath != null, "Non Conditional Revision Aware XPath cannot be NULL");
Preconditions.checkState(!relativeXPath.isAbsolute(),
"Revision Aware XPath MUST be relative i.e. MUST contains ../, "
+ "for non relative Revision Aware XPath use findDataSchemaNode method");
- Preconditions.checkState(leafrefParentNode.getPath() != null,
+ Preconditions.checkState(actualSchemaNode.getPath() != null,
"Schema Path reference for Leafref cannot be NULL");
final Iterable<String> xpaths = SLASH_SPLITTER.split(relativeXPath.toString());
// Find out how many "parent" components there are
// FIXME: is .contains() the right check here?
+ // FIXME: case ../../node1/node2/../node3/../node4
int colCount = 0;
for (Iterator<String> it = xpaths.iterator(); it.hasNext() && it.next().contains(".."); ) {
++colCount;
}
- final Iterable<QName> parent = leafrefParentNode.getPath().getPathFromRoot();
- return Iterables.concat(Iterables.limit(parent, Iterables.size(parent) - colCount),
+ final Iterable<QName> schemaNodePath = actualSchemaNode.getPath().getPathFromRoot();
+
+ if (Iterables.size(schemaNodePath) - colCount >= 0) {
+ return Iterables.concat(Iterables.limit(schemaNodePath, Iterables.size(schemaNodePath) - colCount),
+ Iterables.transform(Iterables.skip(xpaths, colCount), new Function<String, QName>() {
+ @Override
+ public QName apply(final String input) {
+ return stringPathPartToQName(context, module, input);
+ }
+ }));
+ }
+ return Iterables.concat(schemaNodePath,
Iterables.transform(Iterables.skip(xpaths, colCount), new Function<String, QName>() {
@Override
public QName apply(final String input) {
}
}));
}
+
+ /**
+ * Extracts the base type of node on which schema node points to. If target node is again of type LeafrefTypeDefinition, methods will be call recursively until it reach concrete
+ * type definition.
+ *
+ * @param typeDefinition
+ * type of node which will be extracted
+ * @param schemaContext
+ * Schema Context
+ * @param schema
+ * Schema Node
+ * @return recursively found type definition this leafref is pointing to or null if the xpath is incorrect (null is there to preserve backwards compatibility)
+ */
+ public static TypeDefinition<?> getBaseTypeForLeafRef(final LeafrefTypeDefinition typeDefinition, final SchemaContext schemaContext, final SchemaNode schema) {
+ RevisionAwareXPath pathStatement = typeDefinition.getPathStatement();
+ pathStatement = new RevisionAwareXPathImpl(stripConditionsFromXPathString(pathStatement), pathStatement.isAbsolute());
+
+ final Module parentModule = SchemaContextUtil.findParentModule(schemaContext, schema);
+
+ final DataSchemaNode dataSchemaNode;
+ if(pathStatement.isAbsolute()) {
+ dataSchemaNode = (DataSchemaNode) SchemaContextUtil.findDataSchemaNode(schemaContext, parentModule, pathStatement);
+ } else {
+ dataSchemaNode = (DataSchemaNode) SchemaContextUtil.findDataSchemaNodeForRelativeXPath(schemaContext, parentModule, schema, pathStatement);
+ }
+
+ // FIXME this is just to preserve backwards compatibility since yangtools do not mind wrong leafref xpaths
+ // and current expected behaviour for such cases is to just use pure string
+ // This should throw an exception about incorrect XPath in leafref
+ if(dataSchemaNode == null) {
+ return null;
+ }
+
+ final TypeDefinition<?> targetTypeDefinition = typeDefinition(dataSchemaNode);
+
+ if(targetTypeDefinition instanceof LeafrefTypeDefinition) {
+ return getBaseTypeForLeafRef(((LeafrefTypeDefinition) targetTypeDefinition), schemaContext, dataSchemaNode);
+ } else {
+ return targetTypeDefinition;
+ }
+ }
+
+ /**
+ * Removes conditions from xPath pointed to target node.
+ *
+ * @param pathStatement
+ * xPath to target node
+ * @return string representation of xPath without conditions
+ *
+ */
+ private static String stripConditionsFromXPathString(final RevisionAwareXPath pathStatement) {
+ return pathStatement.toString().replaceAll("\\[.*\\]", "");
+ }
+
+ /**
+ * Extracts the base type of leaf schema node until it reach concrete type of TypeDefinition.
+ *
+ * @param node
+ * a node representing LeafSchemaNode
+ * @return concrete type definition of node value
+ */
+ private static TypeDefinition<? extends Object> typeDefinition(final LeafSchemaNode node) {
+ TypeDefinition<?> baseType = node.getType();
+ while (baseType.getBaseType() != null) {
+ baseType = baseType.getBaseType();
+ }
+ return baseType;
+ }
+
+ /**
+ * Extracts the base type of leaf schema node until it reach concrete type of TypeDefinition.
+ *
+ * @param node
+ * a node representing LeafListSchemaNode
+ * @return concrete type definition of node value
+ */
+ private static TypeDefinition<? extends Object> typeDefinition(final LeafListSchemaNode node) {
+ TypeDefinition<?> baseType = node.getType();
+ while (baseType.getBaseType() != null) {
+ baseType = baseType.getBaseType();
+ }
+ return baseType;
+ }
+
+ /**
+ * Gets the base type of DataSchemaNode value.
+ *
+ * @param node
+ * a node representing DataSchemaNode
+ * @return concrete type definition of node value
+ */
+ private static TypeDefinition<? extends Object> typeDefinition(final DataSchemaNode node) {
+ if (node instanceof LeafListSchemaNode) {
+ return typeDefinition((LeafListSchemaNode) node);
+ } else if (node instanceof LeafSchemaNode) {
+ return typeDefinition((LeafSchemaNode) node);
+ } else {
+ throw new IllegalArgumentException("Unhandled parameter types: " + Arrays.<Object> asList(node).toString());
+ }
+ }
}
Code Review / yangtools.git / blobdiff