Add sal-dom-compat

[controller.git] / opendaylight / md-sal / sal-dom-compat / src / main / java / org / opendaylight / controller / sal / core / compat / DOMStoreReadTransactionAdapter.java

diff --git a/opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/DOMStoreReadTransactionAdapter.java b/opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/DOMStoreReadTransactionAdapter.java
new file mode 100644 (file)
index 0000000..a7628de
--- /dev/null
+++ b/opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/DOMStoreReadTransactionAdapter.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 Pantheon Technologies, s.r.o. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.sal.core.compat;
+
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.collect.ForwardingObject;
+import com.google.common.util.concurrent.CheckedFuture;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
+import org.opendaylight.mdsal.common.api.MappingCheckedFuture;
+import org.opendaylight.yangtools.util.concurrent.ExceptionMapper;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+
+public class DOMStoreReadTransactionAdapter<T extends org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction>
+        extends ForwardingObject implements DOMStoreReadTransaction {
+    public static final ExceptionMapper<ReadFailedException> READ_EX_MAPPER =
+            new ExceptionMapper<ReadFailedException>("read", ReadFailedException.class) {
+        @Override
+        protected ReadFailedException newWithCause(final String message, final Throwable cause) {
+            return cause instanceof org.opendaylight.mdsal.common.api.ReadFailedException
+                    ? new ReadFailedException(cause.getMessage(), cause.getCause())
+                            : new ReadFailedException(message, cause);
+        }
+    };
+
+    private final T delegate;
+
+    public DOMStoreReadTransactionAdapter(final T delegate) {
+        this.delegate = requireNonNull(delegate);
+    }
+
+    @Override
+    protected T delegate() {
+        return delegate;
+    }
+
+    @Override
+    public Object getIdentifier() {
+        return delegate.getIdentifier();
+    }
+
+    @Override
+    public void close() {
+        delegate.close();
+    }
+
+    @Override
+    public CheckedFuture<com.google.common.base.Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
+            final YangInstanceIdentifier path) {
+        return MappingCheckedFuture.create(delegate.read(path), READ_EX_MAPPER);
+    }
+
+    @Override
+    public CheckedFuture<Boolean, ReadFailedException> exists(final YangInstanceIdentifier path) {
+        return MappingCheckedFuture.create(delegate.exists(path), READ_EX_MAPPER);
+    }
+}