X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-clustering-commons%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2Fnode%2Futils%2Fstream%2FAbstractNormalizedNodeDataOutput.java;h=d8e021fc6095e924876f8441225f6dd69778404e;hp=863fd0c8af94f6cc9ed26a073feb5ca3e7eca94f;hb=ae6c61499e2c7c76e0406ce397657cd31ddd4d3f;hpb=3859df9beca8f13f1ff2b2744ed3470a1715bec3 diff --git a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/AbstractNormalizedNodeDataOutput.java b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/AbstractNormalizedNodeDataOutput.java index 863fd0c8af..d8e021fc60 100755 --- a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/AbstractNormalizedNodeDataOutput.java +++ b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/AbstractNormalizedNodeDataOutput.java @@ -7,52 +7,43 @@ */ package org.opendaylight.controller.cluster.datastore.node.utils.stream; -import static com.google.common.base.Preconditions.checkArgument; -import static com.google.common.base.Preconditions.checkState; import static java.util.Objects.requireNonNull; -import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; import java.io.DataOutput; import java.io.IOException; import java.io.OutputStream; -import java.io.StringWriter; -import java.nio.charset.StandardCharsets; -import java.util.Collection; -import java.util.Map.Entry; -import java.util.Set; -import javax.xml.transform.TransformerException; -import javax.xml.transform.TransformerFactory; -import javax.xml.transform.TransformerFactoryConfigurationError; -import javax.xml.transform.dom.DOMSource; -import javax.xml.transform.stream.StreamResult; +import java.util.List; +import org.eclipse.jdt.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.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.NormalizedNode; import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter; import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter; import org.opendaylight.yangtools.yang.model.api.SchemaPath; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; +/** + * Abstract base class for implementing {@link NormalizedNodeDataOutput} contract. This class uses + * {@link NormalizedNodeStreamWriter} as an internal interface for performing the actual NormalizedNode writeout, + * i.e. it will defer to a {@link NormalizedNodeWriter} instance. + * + *

+ * As such, this is an implementation detail not exposed from this package, hence implementations can rely on the + * stream being initialized with a header and version. + */ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOutput, NormalizedNodeStreamWriter { - private static final Logger LOG = LoggerFactory.getLogger(AbstractNormalizedNodeDataOutput.class); - - private final DataOutput output; + // Visible for subclasses + final DataOutput output; private NormalizedNodeWriter normalizedNodeWriter; private boolean headerWritten; - private QName lastLeafSetQName; - private boolean inSimple; AbstractNormalizedNodeDataOutput(final DataOutput output) { this.output = requireNonNull(output); } + private void ensureHeaderWritten() throws IOException { if (!headerWritten) { output.writeByte(TokenTypes.SIGNATURE_MARKER); @@ -61,10 +52,6 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut } } - protected abstract short streamVersion(); - - protected abstract void writeString(String string) throws IOException; - @Override public final void write(final int value) throws IOException { ensureHeaderWritten(); @@ -149,173 +136,47 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut output.writeUTF(str); } - private NormalizedNodeWriter normalizedNodeWriter() { - if (normalizedNodeWriter == null) { - normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(this); - } - - return normalizedNodeWriter; - } - @Override - public void writeNormalizedNode(final NormalizedNode node) throws IOException { + public final void writeQName(final QName qname) throws IOException { ensureHeaderWritten(); - normalizedNodeWriter().write(node); + writeQNameInternal(qname); } @Override - public void startLeafNode(final NodeIdentifier name) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new leaf node"); - startNode(name.getNodeType(), NodeTypes.LEAF_NODE); - inSimple = true; - } - - @Override - public void startLeafSet(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new leaf set"); - - lastLeafSetQName = name.getNodeType(); - startNode(name.getNodeType(), NodeTypes.LEAF_SET); - } - - @Override - public void startOrderedLeafSet(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new ordered leaf set"); - - lastLeafSetQName = name.getNodeType(); - startNode(name.getNodeType(), NodeTypes.ORDERED_LEAF_SET); - } - - @Override - public void startLeafSetEntryNode(final NodeWithValue name) throws IOException { - LOG.trace("Starting a new leaf set entry node"); - - output.writeByte(NodeTypes.LEAF_SET_ENTRY_NODE); - - // lastLeafSetQName is set if the parent LeafSetNode was previously written. Otherwise this is a - // stand alone LeafSetEntryNode so write out it's name here. - if (lastLeafSetQName == null) { - writeQName(name.getNodeType()); + public final void writeNormalizedNode(final NormalizedNode node) throws IOException { + ensureHeaderWritten(); + if (normalizedNodeWriter == null) { + normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(this); } - inSimple = true; + normalizedNodeWriter.write(node); } @Override - public void startContainerNode(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - - LOG.trace("Starting a new container node"); - - startNode(name.getNodeType(), NodeTypes.CONTAINER_NODE); - } - - @Override - public void startYangModeledAnyXmlNode(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - - LOG.trace("Starting a new yang modeled anyXml node"); - - startNode(name.getNodeType(), NodeTypes.YANG_MODELED_ANY_XML_NODE); - } - - @Override - public void startUnkeyedList(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new unkeyed list"); - - startNode(name.getNodeType(), NodeTypes.UNKEYED_LIST); - } - - @Override - public void startUnkeyedListItem(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new unkeyed list item"); - - startNode(name.getNodeType(), NodeTypes.UNKEYED_LIST_ITEM); - } - - @Override - public void startMapNode(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new map node"); - - startNode(name.getNodeType(), NodeTypes.MAP_NODE); - } - - @Override - public void startMapEntryNode(final NodeIdentifierWithPredicates identifier, final int childSizeHint) - throws IOException { - requireNonNull(identifier, "Node identifier should not be null"); - LOG.trace("Starting a new map entry node"); - startNode(identifier.getNodeType(), NodeTypes.MAP_ENTRY_NODE); - - writeKeyValueMap(identifier.entrySet()); - } - - @Override - public void startOrderedMapNode(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new ordered map node"); - - startNode(name.getNodeType(), NodeTypes.ORDERED_MAP_NODE); - } - - @Override - public void startChoiceNode(final NodeIdentifier name, final int childSizeHint) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting a new choice node"); - - startNode(name.getNodeType(), NodeTypes.CHOICE_NODE); - } - - @Override - public void startAugmentationNode(final AugmentationIdentifier identifier) throws IOException { - requireNonNull(identifier, "Node identifier should not be null"); - LOG.trace("Starting a new augmentation node"); - - output.writeByte(NodeTypes.AUGMENTATION_NODE); - writeAugmentationIdentifier(identifier); - } - - @Override - public void startAnyxmlNode(final NodeIdentifier name) throws IOException { - requireNonNull(name, "Node identifier should not be null"); - LOG.trace("Starting any xml node"); - startNode(name.getNodeType(), NodeTypes.ANY_XML_NODE); - inSimple = true; + public final void writePathArgument(final PathArgument pathArgument) throws IOException { + ensureHeaderWritten(); + writePathArgumentInternal(pathArgument); } @Override - public void scalarValue(final Object value) throws IOException { - writeObject(value); + public final void writeYangInstanceIdentifier(final YangInstanceIdentifier identifier) throws IOException { + ensureHeaderWritten(); + writeYangInstanceIdentifierInternal(identifier); } @Override - public void domSourceValue(final DOMSource value) throws IOException { - try { - StreamResult xmlOutput = new StreamResult(new StringWriter()); - TransformerFactory.newInstance().newTransformer().transform(value, xmlOutput); - writeObject(xmlOutput.getWriter().toString()); - } catch (TransformerException | TransformerFactoryConfigurationError e) { - throw new IOException("Error writing anyXml", e); - } - } + public final void writeSchemaPath(final SchemaPath path) throws IOException { + ensureHeaderWritten(); - @Override - public void endNode() throws IOException { - LOG.trace("Ending the node"); - if (!inSimple) { - lastLeafSetQName = null; - output.writeByte(NodeTypes.END_NODE); + output.writeBoolean(path.isAbsolute()); + final List qnames = path.getPath(); + output.writeInt(qnames.size()); + for (QName qname : qnames) { + writeQNameInternal(qname); } - inSimple = false; } @Override - public void close() throws IOException { + public final void close() throws IOException { flush(); } @@ -326,170 +187,17 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut } } - private void startNode(final QName qname, final byte nodeType) throws IOException { - requireNonNull(qname, "QName of node identifier should not be null."); - checkState(!inSimple, "Attempted to start a child in a simple node"); - - ensureHeaderWritten(); - - // First write the type of node - output.writeByte(nodeType); - // Write Start Tag - writeQName(qname); - } - - private void writeObjSet(final Set set) throws IOException { - output.writeInt(set.size()); - for (Object o : set) { - checkArgument(o instanceof String, "Expected value type to be String but was %s (%s)", o.getClass(), o); - writeString((String) o); - } - } - - @Override - public void writeSchemaPath(final SchemaPath path) throws IOException { - ensureHeaderWritten(); - output.writeBoolean(path.isAbsolute()); - - final Collection qnames = path.getPath(); - output.writeInt(qnames.size()); - for (QName qname : qnames) { - writeQName(qname); - } - } - @Override - public void writeYangInstanceIdentifier(final YangInstanceIdentifier identifier) throws IOException { - ensureHeaderWritten(); - writeYangInstanceIdentifierInternal(identifier); - } - - private void writeYangInstanceIdentifierInternal(final YangInstanceIdentifier identifier) throws IOException { - Collection pathArguments = identifier.getPathArguments(); - output.writeInt(pathArguments.size()); - - for (PathArgument pathArgument : pathArguments) { - writePathArgument(pathArgument); - } + public final boolean startAnydataNode(final NodeIdentifier name, final Class objectModel) throws IOException { + // FIXME: We do not support anydata nodes of any kind, yet + return false; } - @SuppressFBWarnings(value = "BC_UNCONFIRMED_CAST", - justification = "The casts in the switch clauses are indirectly confirmed via the determination of 'type'.") - @Override - public void writePathArgument(final PathArgument pathArgument) throws IOException { - - byte type = PathArgumentTypes.getSerializablePathArgumentType(pathArgument); - - output.writeByte(type); - - switch (type) { - case PathArgumentTypes.NODE_IDENTIFIER: - - NodeIdentifier nodeIdentifier = (NodeIdentifier) pathArgument; - - writeQName(nodeIdentifier.getNodeType()); - break; - - case PathArgumentTypes.NODE_IDENTIFIER_WITH_PREDICATES: + abstract short streamVersion(); - NodeIdentifierWithPredicates nodeIdentifierWithPredicates = - (NodeIdentifierWithPredicates) pathArgument; - writeQName(nodeIdentifierWithPredicates.getNodeType()); + abstract void writeQNameInternal(@NonNull QName qname) throws IOException; - writeKeyValueMap(nodeIdentifierWithPredicates.entrySet()); - break; + abstract void writePathArgumentInternal(PathArgument pathArgument) throws IOException; - case PathArgumentTypes.NODE_IDENTIFIER_WITH_VALUE : - - NodeWithValue nodeWithValue = (NodeWithValue) pathArgument; - - writeQName(nodeWithValue.getNodeType()); - writeObject(nodeWithValue.getValue()); - break; - - case PathArgumentTypes.AUGMENTATION_IDENTIFIER : - - // No Qname in augmentation identifier - writeAugmentationIdentifier((AugmentationIdentifier) pathArgument); - break; - default : - throw new IllegalStateException("Unknown node identifier type is found : " - + pathArgument.getClass().toString()); - } - } - - private void writeKeyValueMap(final Set> entrySet) throws IOException { - if (!entrySet.isEmpty()) { - output.writeInt(entrySet.size()); - for (Entry entry : entrySet) { - writeQName(entry.getKey()); - writeObject(entry.getValue()); - } - } else { - output.writeInt(0); - } - } - - void writeAugmentationIdentifier(final AugmentationIdentifier aid) throws IOException { - final Set qnames = aid.getPossibleChildNames(); - // Write each child's qname separately, if list is empty send count as 0 - if (!qnames.isEmpty()) { - output.writeInt(qnames.size()); - for (QName qname : qnames) { - writeQName(qname); - } - } else { - LOG.debug("augmentation node does not have any child"); - output.writeInt(0); - } - } - - private void writeObject(final Object value) throws IOException { - - byte type = ValueTypes.getSerializableType(value); - // Write object type first - output.writeByte(type); - - switch (type) { - case ValueTypes.BOOL_TYPE: - output.writeBoolean((Boolean) value); - break; - case ValueTypes.QNAME_TYPE: - writeQName((QName) value); - break; - case ValueTypes.INT_TYPE: - output.writeInt((Integer) value); - break; - case ValueTypes.BYTE_TYPE: - output.writeByte((Byte) value); - break; - case ValueTypes.LONG_TYPE: - output.writeLong((Long) value); - break; - case ValueTypes.SHORT_TYPE: - output.writeShort((Short) value); - break; - case ValueTypes.BITS_TYPE: - writeObjSet((Set) value); - break; - case ValueTypes.BINARY_TYPE: - byte[] bytes = (byte[]) value; - output.writeInt(bytes.length); - output.write(bytes); - break; - case ValueTypes.YANG_IDENTIFIER_TYPE: - writeYangInstanceIdentifierInternal((YangInstanceIdentifier) value); - break; - case ValueTypes.EMPTY_TYPE: - break; - case ValueTypes.STRING_BYTES_TYPE: - final byte[] valueBytes = value.toString().getBytes(StandardCharsets.UTF_8); - output.writeInt(valueBytes.length); - output.write(valueBytes); - break; - default: - output.writeUTF(value.toString()); - break; - } - } + abstract void writeYangInstanceIdentifierInternal(YangInstanceIdentifier identifier) throws IOException; }