/*
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation
+ * Modifications Copyright (C) 2021 Bell Canada. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
import com.google.gson.stream.JsonReader;
import java.io.IOException;
import java.io.StringReader;
-import java.util.Collection;
import java.util.Collections;
import java.util.List;
-import java.util.logging.Logger;
import java.util.stream.Collectors;
-import org.onap.cps.api.impl.Fragment;
-import org.opendaylight.yangtools.yang.common.QName;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.spi.exceptions.DataValidationException;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
-import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.ValueNode;
import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactory;
import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
-import org.opendaylight.yangtools.yang.model.api.Module;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+@Slf4j
public class YangUtils {
- private static final Logger LOGGER = Logger.getLogger(YangUtils.class.getName());
+
private YangUtils() {
- throw new IllegalStateException("Utility class");
+ // Private constructor fo security reasons
}
/**
* @param schemaContext the SchemaContext for the given data
* @return the NormalizedNode representing the json data
*/
- public static NormalizedNode<?, ?> parseJsonData(final String jsonData, final SchemaContext schemaContext)
- throws IOException {
+ public static NormalizedNode parseJsonData(final String jsonData, final SchemaContext schemaContext) {
final JSONCodecFactory jsonCodecFactory = JSONCodecFactorySupplier.DRAFT_LHOTKA_NETMOD_YANG_JSON_02
.getShared(schemaContext);
final NormalizedNodeResult normalizedNodeResult = new NormalizedNodeResult();
final NormalizedNodeStreamWriter normalizedNodeStreamWriter = ImmutableNormalizedNodeStreamWriter
.from(normalizedNodeResult);
- try (final JsonParserStream jsonParserStream = JsonParserStream
- .create(normalizedNodeStreamWriter, jsonCodecFactory)) {
- final JsonReader jsonReader = new JsonReader(new StringReader(jsonData));
- jsonParserStream.parse(jsonReader);
+ try {
+ try (final JsonParserStream jsonParserStream = JsonParserStream
+ .create(normalizedNodeStreamWriter, jsonCodecFactory)) {
+ final JsonReader jsonReader = new JsonReader(new StringReader(jsonData));
+ jsonParserStream.parse(jsonReader);
+ }
+ } catch (final IOException e) {
+ throw new DataValidationException("Failed to parse json data.", String
+ .format("Exception occurred on parsing string %s.", jsonData), e);
}
return normalizedNodeResult.getResult();
}
/**
- * Break a Normalized Node tree into fragments that can be stored by the persistence service.
- *
- * @param tree the normalized node tree
- * @param module the module applicable for the data in the normalized node
- * @return the 'root' Fragment for the tree contain all relevant children etc.
+ * Create an xpath form a Yang Tools NodeIdentifier (i.e. PathArgument).
+ * @param nodeIdentifier the NodeIdentifier
+ * @return an xpath
*/
- public static Fragment fragmentNormalizedNode(
- final NormalizedNode<? extends YangInstanceIdentifier.PathArgument, ?> tree,
- final Module module) {
- final QName[] nodeTypes = {tree.getNodeType()};
- final String xpath = buildXpathId(tree.getIdentifier());
- final Fragment rootFragment = Fragment.createRootFragment(module, nodeTypes, xpath);
- fragmentNormalizedNode(rootFragment, tree);
- return rootFragment;
- }
-
- private static void fragmentNormalizedNode(final Fragment currentFragment,
- final NormalizedNode normalizedNode) {
- if (normalizedNode instanceof DataContainerNode) {
- inspectContainer(currentFragment, (DataContainerNode) normalizedNode);
- } else if (normalizedNode instanceof MapNode) {
- inspectKeyedList(currentFragment, (MapNode) normalizedNode);
- } else if (normalizedNode instanceof ValueNode) {
- inspectLeaf(currentFragment, (ValueNode) normalizedNode);
- } else if (normalizedNode instanceof LeafSetNode) {
- inspectLeafList(currentFragment, (LeafSetNode) normalizedNode);
- } else {
- LOGGER.warning("Cannot normalize " + normalizedNode.getClass());
- }
- }
-
- private static void inspectLeaf(final Fragment currentFragment,
- final ValueNode valueNode) {
- final Object value = valueNode.getValue();
- currentFragment.addLeafValue(valueNode.getNodeType().getLocalName(), value);
- }
-
- private static void inspectLeafList(final Fragment currentFragment,
- final LeafSetNode leafSetNode) {
- currentFragment.addLeafListName(leafSetNode.getNodeType().getLocalName());
- for (final NormalizedNode value : (Collection<NormalizedNode>) leafSetNode.getValue()) {
- fragmentNormalizedNode(currentFragment, value);
- }
- }
-
- private static void inspectContainer(final Fragment currentFragment,
- final DataContainerNode dataContainerNode) {
- final Collection<NormalizedNode> leaves = (Collection) dataContainerNode.getValue();
- for (final NormalizedNode leaf : leaves) {
- fragmentNormalizedNode(currentFragment, leaf);
- }
- }
-
- private static void inspectKeyedList(final Fragment currentFragment,
- final MapNode mapNode) {
- createNodeForEachListElement(currentFragment, mapNode);
- }
-
- private static void createNodeForEachListElement(final Fragment currentFragment, final MapNode mapNode) {
- final Collection<MapEntryNode> mapEntryNodes = mapNode.getValue();
- for (final MapEntryNode mapEntryNode : mapEntryNodes) {
- final String xpathId = buildXpathId(mapEntryNode.getIdentifier());
- final Fragment listElementFragment =
- currentFragment.createChildFragment(mapNode.getNodeType(), xpathId);
- fragmentNormalizedNode(listElementFragment, mapEntryNode);
- }
- }
-
- private static String buildXpathId(final YangInstanceIdentifier.PathArgument nodeIdentifier) {
- final StringBuilder xpathIdBuilder = new StringBuilder();
- xpathIdBuilder.append("/").append(nodeIdentifier.getNodeType().getLocalName());
+ public static String buildXpath(final YangInstanceIdentifier.PathArgument nodeIdentifier) {
+ final StringBuilder xpathBuilder = new StringBuilder();
+ xpathBuilder.append("/").append(nodeIdentifier.getNodeType().getLocalName());
- if (nodeIdentifier instanceof NodeIdentifierWithPredicates) {
- xpathIdBuilder.append(getKeyAttributesStatement((NodeIdentifierWithPredicates) nodeIdentifier));
+ if (nodeIdentifier instanceof YangInstanceIdentifier.NodeIdentifierWithPredicates) {
+ xpathBuilder.append(getKeyAttributesStatement(
+ (YangInstanceIdentifier.NodeIdentifierWithPredicates) nodeIdentifier));
}
- return xpathIdBuilder.toString();
+ return xpathBuilder.toString();
}
- private static String getKeyAttributesStatement(final NodeIdentifierWithPredicates nodeIdentifier) {
+ private static String getKeyAttributesStatement(
+ final YangInstanceIdentifier.NodeIdentifierWithPredicates nodeIdentifier) {
final List<String> keyAttributes = nodeIdentifier.entrySet().stream().map(
entry -> {
final String name = entry.getKey().getLocalName();
Code Review / cps.git / blobdiff