ONOS-5549 TE Tunnel attributes management API

Change-Id: I22f85009f1620cb972fec4a1d0e4bbc357c042e7
diff --git a/apps/tetunnel/api/src/main/java/org/onosproject/tetunnel/api/tunnel/path/DefaultTePath.java b/apps/tetunnel/api/src/main/java/org/onosproject/tetunnel/api/tunnel/path/DefaultTePath.java
new file mode 100755
index 0000000..ce9d17d
--- /dev/null
+++ b/apps/tetunnel/api/src/main/java/org/onosproject/tetunnel/api/tunnel/path/DefaultTePath.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.tetunnel.api.tunnel.path;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import org.onosproject.tetunnel.api.lsp.TeLspKey;
+
+import java.util.List;
+
+/**
+ * Default implementation of TE path.
+ */
+public class DefaultTePath implements TePath {
+
+    private final Type type;
+    private final List<TeLspKey> lsps;
+    private final List<TeRouteSubobject> explicitRoute;
+    private final List<TePath> secondaryPaths;
+
+    /**
+     * Creates a default implementation of TE path with supplied information.
+     *
+     * @param type type of TE Path
+     * @param lsps LSPs of the TE Path
+     * @param explicitRoute explicit route of the (Explicit) TE path
+     * @param secondaryPaths secondary paths of the TE path
+     */
+    public DefaultTePath(Type type, List<TeLspKey> lsps,
+                         List<TeRouteSubobject> explicitRoute,
+                         List<TePath> secondaryPaths) {
+        this.type = type;
+        if (lsps == null) {
+            this.lsps = Lists.newArrayList();
+        } else {
+            this.lsps = Lists.newArrayList(lsps);
+        }
+        if (explicitRoute == null) {
+            this.explicitRoute = Lists.newArrayList();
+        } else {
+            this.explicitRoute = Lists.newArrayList(explicitRoute);
+        }
+        if (secondaryPaths == null) {
+            this.secondaryPaths = Lists.newArrayList();
+        } else {
+            this.secondaryPaths = Lists.newArrayList(secondaryPaths);
+        }
+    }
+
+    @Override
+    public Type type() {
+        return type;
+    }
+
+    @Override
+    public List<TeLspKey> lsps() {
+        return ImmutableList.copyOf(lsps);
+    }
+
+    @Override
+    public List<TeRouteSubobject> explicitRoute() {
+        return ImmutableList.copyOf(explicitRoute);
+    }
+
+    @Override
+    public List<TePath> secondaryPaths() {
+        return ImmutableList.copyOf(secondaryPaths);
+    }
+}