*/
package org.opendaylight.controller.cluster.datastore.node.utils.stream;
-import static java.util.Objects.requireNonNull;
-
import com.google.common.base.Strings;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableList.Builder;
-import com.google.common.collect.Sets;
import java.io.DataInput;
import java.io.IOException;
-import java.io.StringReader;
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-import javax.xml.transform.dom.DOMSource;
-import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.controller.cluster.datastore.node.utils.QNameFactory;
-import org.opendaylight.yangtools.util.ImmutableOffsetMapTemplate;
-import org.opendaylight.yangtools.yang.common.Empty;
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.NodeIdentifier;
-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.schema.LeafNode;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
-import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.w3c.dom.Element;
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
/**
- * NormalizedNodeInputStreamReader reads the byte stream and constructs the normalized node including its children
- * nodes. This process goes in recursive manner, where each NodeTypes object signifies the start of the object, except
- * END_NODE. If a node can have children, then that node's end is calculated based on appearance of END_NODE.
+ * Lithium (or Oxygen really) specialization of AbstractLithiumDataInput.
*/
-class LithiumNormalizedNodeInputStreamReader extends ForwardingDataInput implements NormalizedNodeDataInput {
-
- private static final Logger LOG = LoggerFactory.getLogger(LithiumNormalizedNodeInputStreamReader.class);
-
- private final @NonNull DataInput input;
-
- private final List<String> codedStringMap = new ArrayList<>();
-
- private QName lastLeafSetQName;
-
- private NormalizedNodeBuilder<NodeIdentifier, Object, LeafNode<Object>> leafBuilder;
-
- @SuppressWarnings("rawtypes")
- private NormalizedNodeBuilder<NodeWithValue, Object, LeafSetEntryNode<Object>> leafSetEntryBuilder;
-
+final class LithiumNormalizedNodeInputStreamReader extends AbstractLithiumDataInput {
LithiumNormalizedNodeInputStreamReader(final DataInput input) {
- this.input = requireNonNull(input);
- }
-
- @Override
- final DataInput delegate() {
- return input;
+ super(input);
}
@Override
- public NormalizedNodeStreamVersion getVersion() throws IOException {
+ public NormalizedNodeStreamVersion getVersion() {
return NormalizedNodeStreamVersion.LITHIUM;
}
@Override
- public NormalizedNode<?, ?> readNormalizedNode() throws IOException {
- return readNormalizedNodeInternal();
- }
-
- private NormalizedNode<?, ?> readNormalizedNodeInternal() throws IOException {
- // each node should start with a byte
- byte nodeType = input.readByte();
-
- if (nodeType == NodeTypes.END_NODE) {
- LOG.trace("End node reached. return");
- lastLeafSetQName = null;
- return null;
- }
-
- switch (nodeType) {
- case NodeTypes.AUGMENTATION_NODE:
- AugmentationIdentifier augIdentifier = readAugmentationIdentifier();
- LOG.trace("Reading augmentation node {} ", augIdentifier);
- return addDataContainerChildren(Builders.augmentationBuilder().withNodeIdentifier(augIdentifier))
- .build();
-
- case NodeTypes.LEAF_SET_ENTRY_NODE:
- final QName name = lastLeafSetQName != null ? lastLeafSetQName : readQName();
- final Object value = readObject();
- final NodeWithValue<Object> leafIdentifier = new NodeWithValue<>(name, value);
- LOG.trace("Reading leaf set entry node {}, value {}", leafIdentifier, value);
- return leafSetEntryBuilder().withNodeIdentifier(leafIdentifier).withValue(value).build();
-
- case NodeTypes.MAP_ENTRY_NODE:
- final NodeIdentifierWithPredicates entryIdentifier = readNormalizedNodeWithPredicates();
- LOG.trace("Reading map entry node {} ", entryIdentifier);
- return addDataContainerChildren(Builders.mapEntryBuilder().withNodeIdentifier(entryIdentifier))
- .build();
-
- default:
- return readNodeIdentifierDependentNode(nodeType, readNodeIdentifier());
- }
- }
-
- private NormalizedNodeBuilder<NodeIdentifier, Object, LeafNode<Object>> leafBuilder() {
- if (leafBuilder == null) {
- leafBuilder = Builders.leafBuilder();
- }
-
- return leafBuilder;
- }
-
- @SuppressWarnings("rawtypes")
- private NormalizedNodeBuilder<NodeWithValue, Object, LeafSetEntryNode<Object>> leafSetEntryBuilder() {
- if (leafSetEntryBuilder == null) {
- leafSetEntryBuilder = Builders.leafSetEntryBuilder();
- }
-
- return leafSetEntryBuilder;
- }
-
- private NormalizedNode<?, ?> readNodeIdentifierDependentNode(final byte nodeType, final NodeIdentifier identifier)
- throws IOException {
-
- switch (nodeType) {
- case NodeTypes.LEAF_NODE:
- LOG.trace("Read leaf node {}", identifier);
- // Read the object value
- return leafBuilder().withNodeIdentifier(identifier).withValue(readObject()).build();
-
- case NodeTypes.ANY_XML_NODE:
- LOG.trace("Read xml node");
- return Builders.anyXmlBuilder().withNodeIdentifier(identifier).withValue(readDOMSource()).build();
-
- case NodeTypes.MAP_NODE:
- LOG.trace("Read map node {}", identifier);
- return addDataContainerChildren(Builders.mapBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.CHOICE_NODE:
- LOG.trace("Read choice node {}", identifier);
- return addDataContainerChildren(Builders.choiceBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.ORDERED_MAP_NODE:
- LOG.trace("Reading ordered map node {}", identifier);
- return addDataContainerChildren(Builders.orderedMapBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.UNKEYED_LIST:
- LOG.trace("Read unkeyed list node {}", identifier);
- return addDataContainerChildren(Builders.unkeyedListBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.UNKEYED_LIST_ITEM:
- LOG.trace("Read unkeyed list item node {}", identifier);
- return addDataContainerChildren(Builders.unkeyedListEntryBuilder()
- .withNodeIdentifier(identifier)).build();
-
- case NodeTypes.CONTAINER_NODE:
- LOG.trace("Read container node {}", identifier);
- return addDataContainerChildren(Builders.containerBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.LEAF_SET:
- LOG.trace("Read leaf set node {}", identifier);
- return addLeafSetChildren(identifier.getNodeType(),
- Builders.leafSetBuilder().withNodeIdentifier(identifier)).build();
-
- case NodeTypes.ORDERED_LEAF_SET:
- LOG.trace("Read ordered leaf set node {}", identifier);
- return addLeafSetChildren(identifier.getNodeType(),
- Builders.orderedLeafSetBuilder().withNodeIdentifier(identifier)).build();
-
- default:
- return null;
- }
- }
-
- private DOMSource readDOMSource() throws IOException {
- String xml = readObject().toString();
- try {
- DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
- factory.setNamespaceAware(true);
- Element node = factory.newDocumentBuilder().parse(
- new InputSource(new StringReader(xml))).getDocumentElement();
- return new DOMSource(node);
- } catch (SAXException | ParserConfigurationException e) {
- throw new IOException("Error parsing XML: " + xml, e);
- }
- }
-
- QName readQName() throws IOException {
+ public QName readQName() throws IOException {
// Read in the same sequence of writing
String localName = readCodedString();
String namespace = readCodedString();
String revision = Strings.emptyToNull(readCodedString());
- return QNameFactory.create(new QNameFactory.Key(localName, namespace, revision));
- }
-
-
- private String readCodedString() throws IOException {
- final byte valueType = input.readByte();
- switch (valueType) {
- case TokenTypes.IS_NULL_VALUE:
- return null;
- case TokenTypes.IS_CODE_VALUE:
- final int code = input.readInt();
- try {
- return codedStringMap.get(code);
- } catch (IndexOutOfBoundsException e) {
- throw new IOException("String code " + code + " was not found", e);
- }
- case TokenTypes.IS_STRING_VALUE:
- final String value = input.readUTF().intern();
- codedStringMap.add(value);
- return value;
- default:
- throw new IOException("Unhandled string value type " + valueType);
- }
- }
-
- private Set<QName> readQNameSet() throws IOException {
- // Read the children count
- final int count = input.readInt();
- final Set<QName> children = Sets.newHashSetWithExpectedSize(count);
- for (int i = 0; i < count; i++) {
- children.add(readQName());
- }
- return children;
+ return QNameFactory.create(localName, namespace, revision);
}
+ @Override
AugmentationIdentifier readAugmentationIdentifier() throws IOException {
- return new AugmentationIdentifier(readQNameSet());
+ return defaultReadAugmentationIdentifier();
}
+ @Override
NodeIdentifier readNodeIdentifier() throws IOException {
return new NodeIdentifier(readQName());
}
-
- private NodeIdentifierWithPredicates readNormalizedNodeWithPredicates() throws IOException {
- final QName qname = readQName();
- final int count = input.readInt();
- switch (count) {
- case 0:
- return new NodeIdentifierWithPredicates(qname);
- case 1:
- return new NodeIdentifierWithPredicates(qname, readQName(), readObject());
- default:
- // ImmutableList is used by ImmutableOffsetMapTemplate for lookups, hence we use that.
- final Builder<QName> keys = ImmutableList.builderWithExpectedSize(count);
- final Object[] values = new Object[count];
- for (int i = 0; i < count; i++) {
- keys.add(readQName());
- values[i] = readObject();
- }
-
- return new NodeIdentifierWithPredicates(qname, ImmutableOffsetMapTemplate.ordered(keys.build())
- .instantiateWithValues(values));
- }
- }
-
- private Object readObject() throws IOException {
- byte objectType = input.readByte();
- switch (objectType) {
- case ValueTypes.BITS_TYPE:
- return readObjSet();
-
- case ValueTypes.BOOL_TYPE:
- return input.readBoolean();
-
- case ValueTypes.BYTE_TYPE:
- return input.readByte();
-
- case ValueTypes.INT_TYPE:
- return input.readInt();
-
- case ValueTypes.LONG_TYPE:
- return input.readLong();
-
- case ValueTypes.QNAME_TYPE:
- return readQName();
-
- case ValueTypes.SHORT_TYPE:
- return input.readShort();
-
- case ValueTypes.STRING_TYPE:
- return input.readUTF();
-
- case ValueTypes.STRING_BYTES_TYPE:
- return readStringBytes();
-
- case ValueTypes.BIG_DECIMAL_TYPE:
- return new BigDecimal(input.readUTF());
-
- case ValueTypes.BIG_INTEGER_TYPE:
- return new BigInteger(input.readUTF());
-
- case ValueTypes.BINARY_TYPE:
- byte[] bytes = new byte[input.readInt()];
- input.readFully(bytes);
- return bytes;
-
- case ValueTypes.YANG_IDENTIFIER_TYPE:
- return readYangInstanceIdentifierInternal();
-
- case ValueTypes.EMPTY_TYPE:
- // Leaf nodes no longer allow null values and thus we no longer emit null values. Previously, the "empty"
- // yang type was represented as null so we translate an incoming null value to Empty. It was possible for
- // a BI user to set a string leaf to null and we're rolling the dice here but the chances for that are
- // very low. We'd have to know the yang type but, even if we did, we can't let a null value pass upstream
- // so we'd have to drop the leaf which might cause other issues.
- case ValueTypes.NULL_TYPE:
- return Empty.getInstance();
-
- default:
- return null;
- }
- }
-
- private String readStringBytes() throws IOException {
- byte[] bytes = new byte[input.readInt()];
- input.readFully(bytes);
- return new String(bytes, StandardCharsets.UTF_8);
- }
-
- @Override
- public SchemaPath readSchemaPath() throws IOException {
- final boolean absolute = input.readBoolean();
- final int size = input.readInt();
-
- final Builder<QName> qnames = ImmutableList.builderWithExpectedSize(size);
- for (int i = 0; i < size; ++i) {
- qnames.add(readQName());
- }
- return SchemaPath.create(qnames.build(), absolute);
- }
-
- @Override
- public YangInstanceIdentifier readYangInstanceIdentifier() throws IOException {
- return readYangInstanceIdentifierInternal();
- }
-
- private YangInstanceIdentifier readYangInstanceIdentifierInternal() throws IOException {
- int size = input.readInt();
- final Builder<PathArgument> pathArguments = ImmutableList.builderWithExpectedSize(size);
- for (int i = 0; i < size; i++) {
- pathArguments.add(readPathArgument());
- }
- return YangInstanceIdentifier.create(pathArguments.build());
- }
-
- private Set<String> readObjSet() throws IOException {
- int count = input.readInt();
- Set<String> children = new HashSet<>(count);
- for (int i = 0; i < count; i++) {
- children.add(readCodedString());
- }
- return children;
- }
-
- @Override
- public PathArgument readPathArgument() throws IOException {
- // read Type
- int type = input.readByte();
-
- switch (type) {
- case PathArgumentTypes.AUGMENTATION_IDENTIFIER:
- return readAugmentationIdentifier();
- case PathArgumentTypes.NODE_IDENTIFIER:
- return readNodeIdentifier();
- case PathArgumentTypes.NODE_IDENTIFIER_WITH_PREDICATES:
- return readNormalizedNodeWithPredicates();
- case PathArgumentTypes.NODE_IDENTIFIER_WITH_VALUE:
- return new NodeWithValue<>(readQName(), readObject());
- default:
- // FIXME: throw hard error
- return null;
- }
- }
-
- @SuppressWarnings("unchecked")
- private ListNodeBuilder<Object, LeafSetEntryNode<Object>> addLeafSetChildren(final QName nodeType,
- final ListNodeBuilder<Object, LeafSetEntryNode<Object>> builder) throws IOException {
-
- LOG.trace("Reading children of leaf set");
-
- lastLeafSetQName = nodeType;
-
- LeafSetEntryNode<Object> child = (LeafSetEntryNode<Object>)readNormalizedNodeInternal();
-
- while (child != null) {
- builder.withChild(child);
- child = (LeafSetEntryNode<Object>)readNormalizedNodeInternal();
- }
- return builder;
- }
-
- @SuppressWarnings({ "unchecked", "rawtypes" })
- private NormalizedNodeContainerBuilder addDataContainerChildren(
- final NormalizedNodeContainerBuilder builder) throws IOException {
- LOG.trace("Reading data container (leaf nodes) nodes");
-
- NormalizedNode<?, ?> child = readNormalizedNodeInternal();
-
- while (child != null) {
- builder.addChild(child);
- child = readNormalizedNodeInternal();
- }
- return builder;
- }
}
Code Review / controller.git / blobdiff