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=2224357d42d96b3c5c9e1bdcdfd0c618b3631233;hp=02bebebd2949d397d9234a27215f1e84de0ce299;hb=68f179dcd8483dd7f681e134268a1eee29d09d55;hpb=77f491931ec07f6972869b8cbfa2207857990cec 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 02bebebd29..2224357d42 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 @@ -7,21 +7,24 @@ */ package org.opendaylight.controller.cluster.datastore.node.utils.stream; -import com.google.common.base.Preconditions; +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; +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 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; @@ -36,6 +39,20 @@ import org.opendaylight.yangtools.yang.model.api.SchemaPath; import org.slf4j.Logger; import org.slf4j.LoggerFactory; +/** + * NormalizedNodeOutputStreamWriter will be used by distributed datastore to send normalized node in + * a stream. + * A stream writer wrapper around this class will write node objects to stream in recursive manner. + * for example - If you have a ContainerNode which has a two LeafNode as children, then + * you will first call + * {@link #startContainerNode(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier, int)}, + * then will call + * {@link #leafNode(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier, Object)} twice + * and then, {@link #endNode()} to end container node. + * + *
Based on the each node, the node type is also written to the stream, that helps in reconstructing the object,
+ * while reading.
+ */
abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOutput, NormalizedNodeStreamWriter {
private static final Logger LOG = LoggerFactory.getLogger(AbstractNormalizedNodeDataOutput.class);
@@ -44,9 +61,10 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
private NormalizedNodeWriter normalizedNodeWriter;
private boolean headerWritten;
private QName lastLeafSetQName;
+ private boolean inSimple;
AbstractNormalizedNodeDataOutput(final DataOutput output) {
- this.output = Preconditions.checkNotNull(output);
+ this.output = requireNonNull(output);
}
private void ensureHeaderWritten() throws IOException {
@@ -59,8 +77,6 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
protected abstract short streamVersion();
- protected abstract void writeQName(QName qname) throws IOException;
-
protected abstract void writeString(String string) throws IOException;
@Override
@@ -162,146 +178,119 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
}
@Override
- public void leafNode(final NodeIdentifier name, final Object value) throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
- LOG.trace("Writing a new leaf node");
- startNode(name.getNodeType(), NodeTypes.LEAF_NODE);
-
- writeObject(value);
+ public void startLeafNode(final NodeIdentifier name) throws IOException {
+ LOG.trace("Starting a new leaf node");
+ startNode(name, NodeTypes.LEAF_NODE);
+ inSimple = true;
}
@Override
- public void startLeafSet(final NodeIdentifier name, final int childSizeHint)
-
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startLeafSet(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new leaf set");
-
- lastLeafSetQName = name.getNodeType();
- startNode(name.getNodeType(), NodeTypes.LEAF_SET);
+ commonStartLeafSet(name, NodeTypes.LEAF_SET);
}
@Override
- public void startOrderedLeafSet(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startOrderedLeafSet(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new ordered leaf set");
+ commonStartLeafSet(name, NodeTypes.ORDERED_LEAF_SET);
+ }
+ private void commonStartLeafSet(final NodeIdentifier name, final byte nodeType) throws IOException {
+ startNode(name, nodeType);
lastLeafSetQName = name.getNodeType();
- startNode(name.getNodeType(), NodeTypes.ORDERED_LEAF_SET);
}
@Override
- public void leafSetEntryNode(final QName name, final Object value) throws IOException, IllegalArgumentException {
- LOG.trace("Writing a new leaf set entry node");
+ 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);
+ writeQName(name.getNodeType());
}
-
- writeObject(value);
+ inSimple = true;
}
@Override
- public void startContainerNode(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
-
+ public void startContainerNode(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new container node");
-
- startNode(name.getNodeType(), NodeTypes.CONTAINER_NODE);
+ startNode(name, NodeTypes.CONTAINER_NODE);
}
@Override
- public void startYangModeledAnyXmlNode(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
-
+ public void startYangModeledAnyXmlNode(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new yang modeled anyXml node");
-
- startNode(name.getNodeType(), NodeTypes.YANG_MODELED_ANY_XML_NODE);
+ startNode(name, NodeTypes.YANG_MODELED_ANY_XML_NODE);
}
@Override
- public void startUnkeyedList(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startUnkeyedList(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new unkeyed list");
-
- startNode(name.getNodeType(), NodeTypes.UNKEYED_LIST);
+ startNode(name, NodeTypes.UNKEYED_LIST);
}
@Override
- public void startUnkeyedListItem(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalStateException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startUnkeyedListItem(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new unkeyed list item");
-
- startNode(name.getNodeType(), NodeTypes.UNKEYED_LIST_ITEM);
+ startNode(name, NodeTypes.UNKEYED_LIST_ITEM);
}
@Override
- public void startMapNode(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startMapNode(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new map node");
-
- startNode(name.getNodeType(), NodeTypes.MAP_NODE);
+ startNode(name, NodeTypes.MAP_NODE);
}
@Override
public void startMapEntryNode(final NodeIdentifierWithPredicates identifier, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(identifier, "Node identifier should not be null");
+ throws IOException {
LOG.trace("Starting a new map entry node");
- startNode(identifier.getNodeType(), NodeTypes.MAP_ENTRY_NODE);
-
- writeKeyValueMap(identifier.getKeyValues());
-
+ startNode(identifier, NodeTypes.MAP_ENTRY_NODE);
+ writeKeyValueMap(identifier.entrySet());
}
@Override
- public void startOrderedMapNode(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startOrderedMapNode(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new ordered map node");
-
- startNode(name.getNodeType(), NodeTypes.ORDERED_MAP_NODE);
+ startNode(name, NodeTypes.ORDERED_MAP_NODE);
}
@Override
- public void startChoiceNode(final NodeIdentifier name, final int childSizeHint)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
+ public void startChoiceNode(final NodeIdentifier name, final int childSizeHint) throws IOException {
LOG.trace("Starting a new choice node");
-
- startNode(name.getNodeType(), NodeTypes.CHOICE_NODE);
+ startNode(name, NodeTypes.CHOICE_NODE);
}
@Override
- public void startAugmentationNode(final AugmentationIdentifier identifier)
- throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(identifier, "Node identifier should not be null");
+ 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);
- writeQNameSet(identifier.getPossibleChildNames());
+ writeAugmentationIdentifier(identifier);
}
@Override
- public void anyxmlNode(final NodeIdentifier name, final Object value) throws IOException, IllegalArgumentException {
- Preconditions.checkNotNull(name, "Node identifier should not be null");
- LOG.trace("Writing any xml node");
+ public void startAnyxmlNode(final NodeIdentifier name) throws IOException {
+ LOG.trace("Starting any xml node");
+ startNode(name, NodeTypes.ANY_XML_NODE);
+ inSimple = true;
+ }
- startNode(name.getNodeType(), NodeTypes.ANY_XML_NODE);
+ @Override
+ public void scalarValue(final Object value) throws IOException {
+ writeObject(value);
+ }
+ @Override
+ public void domSourceValue(final DOMSource value) throws IOException {
try {
StreamResult xmlOutput = new StreamResult(new StringWriter());
- TransformerFactory.newInstance().newTransformer().transform((DOMSource)value, xmlOutput);
+ TransformerFactory.newInstance().newTransformer().transform(value, xmlOutput);
writeObject(xmlOutput.getWriter().toString());
} catch (TransformerException | TransformerFactoryConfigurationError e) {
throw new IOException("Error writing anyXml", e);
@@ -309,10 +298,13 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
}
@Override
- public void endNode() throws IOException, IllegalStateException {
+ public void endNode() throws IOException {
LOG.trace("Ending the node");
- lastLeafSetQName = null;
- output.writeByte(NodeTypes.END_NODE);
+ if (!inSimple) {
+ lastLeafSetQName = null;
+ output.writeByte(NodeTypes.END_NODE);
+ }
+ inSimple = false;
}
@Override
@@ -327,23 +319,22 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
}
}
- private void startNode(final QName qname, final byte nodeType) throws IOException {
- Preconditions.checkNotNull(qname, "QName of node identifier should not be null.");
+ private void startNode(final PathArgument arg, final byte nodeType) throws IOException {
+ requireNonNull(arg, "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);
+ writeQName(arg.getNodeType());
}
- private void writeObjSet(final Set> set) throws IOException {
+ final void writeObjSet(final Set> set) throws IOException {
output.writeInt(set.size());
for (Object o : set) {
- Preconditions.checkArgument(o instanceof String, "Expected value type to be String but was %s (%s)",
- o.getClass(), o);
-
+ checkArgument(o instanceof String, "Expected value type to be String but was %s (%s)", o.getClass(), o);
writeString((String) o);
}
}
@@ -366,7 +357,7 @@ abstract class AbstractNormalizedNodeDataOutput implements NormalizedNodeDataOut
writeYangInstanceIdentifierInternal(identifier);
}
- private void writeYangInstanceIdentifierInternal(final YangInstanceIdentifier identifier) throws IOException {
+ final void writeYangInstanceIdentifierInternal(final YangInstanceIdentifier identifier) throws IOException {
Collection