import com.google.common.annotations.Beta;
import com.google.common.base.Preconditions;
-import com.google.common.base.Splitter;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.List;
import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
+import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.codec.InstanceIdentifierCodec;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
/**
* Abstract utility class for representations which encode {@link YangInstanceIdentifier} as a
*/
@Beta
public abstract class AbstractStringInstanceIdentifierCodec extends AbstractNamespaceCodec implements InstanceIdentifierCodec<String> {
- private static final Pattern PREDICATE_PATTERN = Pattern.compile("\\[(.*?)\\]");
- private static final Splitter SLASH_SPLITTER = Splitter.on('/');
@Override
public final String serialize(final YangInstanceIdentifier data) {
StringBuilder sb = new StringBuilder();
+ DataSchemaContextNode<?> current = getDataContextTree().getRoot();
for (PathArgument arg : data.getPathArguments()) {
- if(arg instanceof AugmentationIdentifier) {
+ current = current.getChild(arg);
+ Preconditions.checkArgument(current != null,
+ "Invalid input %s: schema for argument %s (after %s) not found", data, arg, sb);
+
+ if (current.isMixin()) {
/*
* XML/YANG instance identifier does not have concept
- * of augmentation identifier, which identifies
- * mixin (same as paretn element), so we can safely
- * ignore it if it is part of path (since child node)
- * is identified in same fashion.
- *
+ * of augmentation identifier, or list as whole which
+ * identifies a mixin (same as the parent element),
+ * so we can safely ignore it if it is part of path
+ * (since child node) is identified in same fashion.
*/
continue;
}
sb.append("']");
}
}
-
return sb.toString();
}
+ /**
+ *
+ * Returns DataSchemaContextTree associated with SchemaContext for which
+ * serialization / deserialization occurs.
+ *
+ * Implementations MUST provide non-null Data Tree context, in order
+ * for correct serialization / deserialization of PathArguments,
+ * since XML representation does not have Augmentation arguments
+ * and does not provide path arguments for cases.
+ *
+ * This effectively means same input XPath representation of Path Argument
+ * may result in different YangInstanceIdentifiers if models are different
+ * in uses of choices and cases.
+ *
+ * @return DataSchemaContextTree associated with SchemaContext for which
+ * serialization / deserialization occurs.
+ */
+ protected abstract @Nonnull DataSchemaContextTree getDataContextTree();
+
+ protected Object deserializeKeyValue(final DataSchemaNode schemaNode, final String value) {
+ return value;
+ }
+
@Override
public final YangInstanceIdentifier deserialize(final String data) {
Preconditions.checkNotNull(data, "Data may not be null");
-
- final Iterator<String> xPathParts = SLASH_SPLITTER.split(data).iterator();
-
- // must be at least "/pr:node"
- if (!xPathParts.hasNext() || !xPathParts.next().isEmpty() || !xPathParts.hasNext()) {
- return null;
- }
-
- List<PathArgument> result = new ArrayList<>();
- while (xPathParts.hasNext()) {
- String xPathPartTrimmed = xPathParts.next().trim();
-
- PathArgument pathArgument = toPathArgument(xPathPartTrimmed);
- if (pathArgument != null) {
- result.add(pathArgument);
- }
- }
- return YangInstanceIdentifier.create(result);
- }
-
- private PathArgument toPathArgument(final String xPathArgument) {
- final QName mainQName = parseQName(xPathArgument);
-
- // predicates
- final Matcher matcher = PREDICATE_PATTERN.matcher(xPathArgument);
- final Map<QName, Object> predicates = new LinkedHashMap<>();
- QName currentQName = mainQName;
-
- while (matcher.find()) {
- final String predicateStr = matcher.group(1).trim();
- final int indexOfEqualityMark = predicateStr.indexOf('=');
- if (indexOfEqualityMark != -1) {
- final String predicateValue = toPredicateValue(predicateStr.substring(indexOfEqualityMark + 1));
- if (predicateValue == null) {
- return null;
- }
-
- if (predicateStr.charAt(0) != '.') {
- // target is not a leaf-list
- currentQName = parseQName(predicateStr.substring(0, indexOfEqualityMark));
- if (currentQName == null) {
- return null;
- }
- }
- predicates.put(currentQName, predicateValue);
- }
- }
-
- if (predicates.isEmpty()) {
- return new YangInstanceIdentifier.NodeIdentifier(mainQName);
- } else {
- return new YangInstanceIdentifier.NodeIdentifierWithPredicates(mainQName, predicates);
- }
+ XpathStringParsingPathArgumentBuilder builder = new XpathStringParsingPathArgumentBuilder(this, data);
+ return YangInstanceIdentifier.create(builder.build());
}
- private static String toPredicateValue(final String predicatedValue) {
- final String predicatedValueTrimmed = predicatedValue.trim();
- if (predicatedValue.isEmpty()) {
- return null;
- }
-
- switch (predicatedValueTrimmed.charAt(0)) {
- case '"':
- return trimIfEndIs(predicatedValueTrimmed, '"');
- case '\'':
- return trimIfEndIs(predicatedValueTrimmed, '\'');
- default:
- return null;
- }
- }
-
- private static String trimIfEndIs(final String str, final char end) {
- final int l = str.length() - 1;
- if (str.charAt(l) != end) {
- return null;
- }
-
- return str.substring(1, l);
- }
}
Code Review / yangtools.git / blobdiff