Switch CompositeModification to bypass thread-local streams

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / modification / MutableCompositeModification.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/modification/MutableCompositeModification.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/modification/MutableCompositeModification.java
index 983ac860e1e458f068b2cbf5df7575d38e7ba6b2..79e3b149617bfd4a2ecebb7c245a949435ecaf00 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/modification/MutableCompositeModification.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/modification/MutableCompositeModification.java
@@ -8,28 +8,133 @@
 
 package org.opendaylight.controller.cluster.datastore.modification;
 
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-
+import com.google.common.base.Preconditions;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
+import org.opendaylight.controller.cluster.datastore.messages.VersionedExternalizableMessage;
+import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeDataInput;
+import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeDataOutput;
+import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeInputOutput;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
+
+/**
+ * MutableCompositeModification is just a mutable version of a CompositeModification.
+ */
+public class MutableCompositeModification extends VersionedExternalizableMessage implements CompositeModification {
+    private static final long serialVersionUID = 1L;
+
+    private final List<Modification> modifications = new ArrayList<>();
+    private List<Modification> immutableModifications = null;
+
+    public MutableCompositeModification() {
+        this(DataStoreVersions.CURRENT_VERSION);
+    }
+
+    public MutableCompositeModification(final short version) {
+        super(version);
+    }
+
+    @Override
+    public void apply(final DOMStoreWriteTransaction transaction) {
+        for (Modification modification : modifications) {
+            modification.apply(transaction);
+        }
+    }
 
-public class MutableCompositeModification implements CompositeModification {
-  private final List<Modification> modifications = new ArrayList<>();
+    @Override
+    public void apply(final DataTreeModification transaction) {
+        for (Modification modification : modifications) {
+            modification.apply(transaction);
+        }
+    }
 
-  @Override
-  public void apply(DOMStoreWriteTransaction transaction) {
-    for(Modification modification : modifications){
-      modification.apply(transaction);
+    @Override
+    public byte getType() {
+        return COMPOSITE;
     }
-  }
 
-  public void addModification(Modification modification){
-    modifications.add(modification);
-  }
+    /**
+     * Add a new Modification to the list of Modifications represented by this composite.
+     *
+     * @param modification the modification to add.
+     */
+    public void addModification(final Modification modification) {
+        Preconditions.checkNotNull(modification);
+        modifications.add(modification);
+    }
+
+    public void addModifications(final Iterable<Modification> newMods) {
+        for (Modification mod : newMods) {
+            addModification(mod);
+        }
+    }
 
-  public List<Modification> getModifications(){
-    return Collections.unmodifiableList(modifications);
-  }
+    @Override
+    public List<Modification> getModifications() {
+        if (immutableModifications == null) {
+            immutableModifications = Collections.unmodifiableList(modifications);
+        }
 
+        return immutableModifications;
+    }
+
+    @Override
+    public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
+        super.readExternal(in);
+
+        int size = in.readInt();
+        if (size > 0) {
+            final NormalizedNodeDataInput input = NormalizedNodeInputOutput.newDataInputWithoutValidation(in);
+            for (int i = 0; i < size; i++) {
+                byte type = in.readByte();
+                switch (type) {
+                    case Modification.WRITE:
+                        modifications.add(WriteModification.fromStream(input, getVersion()));
+                        break;
+
+                    case Modification.MERGE:
+                        modifications.add(MergeModification.fromStream(input, getVersion()));
+                        break;
+
+                    case Modification.DELETE:
+                        modifications.add(DeleteModification.fromStream(input, getVersion()));
+                        break;
+                    default:
+                        break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public void writeExternal(final ObjectOutput out) throws IOException {
+        super.writeExternal(out);
+
+        final int size = modifications.size();
+        out.writeInt(size);
+        if (size > 0) {
+            try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out)) {
+                for (Modification mod : modifications) {
+                    out.writeByte(mod.getType());
+                    mod.writeTo(stream);
+                }
+            }
+        }
+    }
+
+    public static MutableCompositeModification fromSerializable(final Object serializable) {
+        Preconditions.checkArgument(serializable instanceof MutableCompositeModification);
+        return (MutableCompositeModification)serializable;
+    }
+
+    @Override
+    public void writeTo(final NormalizedNodeDataOutput out) throws IOException {
+        throw new UnsupportedOperationException();
+    }
 }