[ONOS-4350] Inter Jar dependency implementation and code restructuring.

Change-Id: Iacac75e4187aed93ce1754c170a9c19707e5b8c3
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/linker/impl/YangEntityToResolveInfoImpl.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/linker/impl/YangEntityToResolveInfoImpl.java
new file mode 100644
index 0000000..6b6be58
--- /dev/null
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/linker/impl/YangEntityToResolveInfoImpl.java
@@ -0,0 +1,84 @@
+/*
+ * 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.yangutils.linker.impl;
+
+import java.io.Serializable;
+
+import org.onosproject.yangutils.datamodel.YangEntityToResolveInfo;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangType;
+import org.onosproject.yangutils.datamodel.YangUses;
+import org.onosproject.yangutils.linker.exceptions.LinkerException;
+
+/**
+ * Represents implementation of information about entity being resolved.
+ *
+ * @param <T> type of entity being resolved, uses / grouping
+ */
+public class YangEntityToResolveInfoImpl<T> implements YangEntityToResolveInfo<T>, Serializable {
+
+    private static final long serialVersionUID = 806201659L;
+
+    // Parsable node for which resolution is to be performed.
+    private T entityToResolve;
+
+    // Holder of the YANG construct for which resolution has to be carried out.
+    private YangNode holderOfEntityToResolve;
+
+    @Override
+    public T getEntityToResolve() {
+        return entityToResolve;
+    }
+
+    @Override
+    public void setEntityToResolve(T entityToResolve) {
+        this.entityToResolve = entityToResolve;
+    }
+
+    @Override
+    public YangNode getHolderOfEntityToResolve() {
+        return holderOfEntityToResolve;
+    }
+
+    @Override
+    public void setHolderOfEntityToResolve(YangNode holderOfEntityToResolve) {
+        this.holderOfEntityToResolve = holderOfEntityToResolve;
+    }
+
+    /**
+     * Retrieves the prefix of the entity.
+     *
+     * @return entities prefix
+     * @throws LinkerException linker error
+     */
+    public String getEntityPrefix()
+            throws LinkerException {
+        if (getEntityToResolve() == null) {
+            return null;
+        }
+
+        String prefix;
+        T entityToBeResolved = getEntityToResolve();
+        if (entityToBeResolved instanceof YangType) {
+            prefix = ((YangType<?>) entityToBeResolved).getPrefix();
+        } else if (entityToBeResolved instanceof YangUses) {
+            prefix = ((YangUses) entityToBeResolved).getPrefix();
+        } else {
+            throw new LinkerException("Linker Exception: Entity to resolved is other than type/uses");
+        }
+        return prefix;
+    }
+}