Take advantage of YangInstanceIdentifier methods

[controller.git] / opendaylight / md-sal / sal-clustering-commons / src / main / java / org / opendaylight / controller / cluster / datastore / node / utils / stream / NormalizedNodeOutputStreamWriter.java

diff --git a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/NormalizedNodeOutputStreamWriter.java b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/NormalizedNodeOutputStreamWriter.java
index fc381c19a98053161fbc93c3525ca8219d006720..35776bb1a9aa887f38004dba005e48d327262bff 100644 (file)
--- a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/NormalizedNodeOutputStreamWriter.java
+++ b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/stream/NormalizedNodeOutputStreamWriter.java
@@ -11,17 +11,19 @@
 package org.opendaylight.controller.cluster.datastore.node.utils.stream;
 
 import com.google.common.base.Preconditions;
-import com.google.common.collect.Iterables;
 import java.io.DataOutput;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+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.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -44,6 +46,9 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
 
     private static final Logger LOG = LoggerFactory.getLogger(NormalizedNodeOutputStreamWriter.class);
 
+    static final byte SIGNATURE_MARKER = (byte) 0xab;
+    static final short CURRENT_VERSION = (short) 1;
+
     static final byte IS_CODE_VALUE = 1;
     static final byte IS_STRING_VALUE = 2;
     static final byte IS_NULL_VALUE = 3;
@@ -52,15 +57,40 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
 
     private final Map<String, Integer> stringCodeMap = new HashMap<>();
 
+    private NormalizedNodeWriter normalizedNodeWriter;
+
+    private boolean wroteSignatureMarker;
+
     public NormalizedNodeOutputStreamWriter(OutputStream stream) throws IOException {
         Preconditions.checkNotNull(stream);
         output = new DataOutputStream(stream);
     }
 
-    public NormalizedNodeOutputStreamWriter(DataOutput output) throws IOException {
+    public NormalizedNodeOutputStreamWriter(DataOutput output) {
         this.output = Preconditions.checkNotNull(output);
     }
 
+    private NormalizedNodeWriter normalizedNodeWriter() {
+        if(normalizedNodeWriter == null) {
+            normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(this);
+        }
+
+        return normalizedNodeWriter;
+    }
+
+    public void writeNormalizedNode(NormalizedNode<?, ?> node) throws IOException {
+        writeSignatureMarkerAndVersionIfNeeded();
+        normalizedNodeWriter().write(node);
+    }
+
+    private void writeSignatureMarkerAndVersionIfNeeded() throws IOException {
+        if(!wroteSignatureMarker) {
+            output.writeByte(SIGNATURE_MARKER);
+            output.writeShort(CURRENT_VERSION);
+            wroteSignatureMarker = true;
+        }
+    }
+
     @Override
     public void leafNode(YangInstanceIdentifier.NodeIdentifier name, Object value) throws IOException, IllegalArgumentException {
         Preconditions.checkNotNull(name, "Node identifier should not be null");
@@ -173,6 +203,7 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
 
     @Override
     public void close() throws IOException {
+        flush();
     }
 
     @Override
@@ -185,6 +216,9 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
     private void startNode(final QName qName, byte nodeType) throws IOException {
 
         Preconditions.checkNotNull(qName, "QName of node identifier should not be null.");
+
+        writeSignatureMarkerAndVersionIfNeeded();
+
         // First write the type of node
         output.writeByte(nodeType);
         // Write Start Tag
@@ -231,16 +265,20 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
     }
 
     public void writeYangInstanceIdentifier(YangInstanceIdentifier identifier) throws IOException {
-        Iterable<YangInstanceIdentifier.PathArgument> pathArguments = identifier.getPathArguments();
-        int size = Iterables.size(pathArguments);
-        output.writeInt(size);
+        writeSignatureMarkerAndVersionIfNeeded();
+        writeYangInstanceIdentifierInternal(identifier);
+    }
+
+    private void writeYangInstanceIdentifierInternal(YangInstanceIdentifier identifier) throws IOException {
+        Collection<YangInstanceIdentifier.PathArgument> pathArguments = identifier.getPathArguments();
+        output.writeInt(pathArguments.size());
 
         for(YangInstanceIdentifier.PathArgument pathArgument : pathArguments) {
             writePathArgument(pathArgument);
         }
     }
 
-    private void writePathArgument(YangInstanceIdentifier.PathArgument pathArgument) throws IOException {
+    public void writePathArgument(YangInstanceIdentifier.PathArgument pathArgument) throws IOException {
 
         byte type = PathArgumentTypes.getSerializablePathArgumentType(pathArgument);
 
@@ -347,7 +385,7 @@ public class NormalizedNodeOutputStreamWriter implements NormalizedNodeStreamWri
                 output.write(bytes);
                 break;
             case ValueTypes.YANG_IDENTIFIER_TYPE:
-                writeYangInstanceIdentifier((YangInstanceIdentifier) value);
+                writeYangInstanceIdentifierInternal((YangInstanceIdentifier) value);
                 break;
             case ValueTypes.NULL_TYPE :
                 break;