Added RBAC for REST APIs.

- admin role required for POST, PUT, DELETE & PATCH
- viewer role required for all other requests
- cleaned up all web.xml files for consistency and correctness

Change-Id: I33bad5cec0fb0f4285eed84173025b0a107b5aec
diff --git a/apps/pce/pcerest/pom.xml b/apps/pce/pcerest/pom.xml
index 634ec38..c288e11 100644
--- a/apps/pce/pcerest/pom.xml
+++ b/apps/pce/pcerest/pom.xml
@@ -96,7 +96,18 @@
             <artifactId>onos-apps-pce-app</artifactId>
             <version>${project.version}</version>
         </dependency>
-
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-rest</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-rest</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+            <classifier>tests</classifier>
+        </dependency>
     </dependencies>
     <build>
         <plugins>
diff --git a/apps/pce/pcerest/src/main/resources/WEB-INF/web.xml b/apps/pce/pcerest/src/main/resources/WEB-INF/web.xml
index ae129fc..388044a 100644
--- a/apps/pce/pcerest/src/main/resources/WEB-INF/web.xml
+++ b/apps/pce/pcerest/src/main/resources/WEB-INF/web.xml
@@ -20,6 +20,27 @@
          id="ONOS" version="2.5">
     <display-name>PCE REST API v1.0</display-name>
 
+    <security-constraint>
+        <web-resource-collection>
+            <web-resource-name>Secured</web-resource-name>
+            <url-pattern>/*</url-pattern>
+        </web-resource-collection>
+        <auth-constraint>
+            <role-name>admin</role-name>
+            <role-name>viewer</role-name>
+        </auth-constraint>
+    </security-constraint>
+
+    <security-role>
+        <role-name>admin</role-name>
+        <role-name>viewer</role-name>
+    </security-role>
+
+    <login-config>
+        <auth-method>BASIC</auth-method>
+        <realm-name>karaf</realm-name>
+    </login-config>
+
     <servlet>
         <servlet-name>JAX-RS Service</servlet-name>
         <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
diff --git a/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java b/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
index 1f69801..a24c874 100644
--- a/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
+++ b/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
@@ -18,6 +18,7 @@
 import org.glassfish.jersey.server.ResourceConfig;
 import org.glassfish.jersey.test.JerseyTest;
 import org.glassfish.jersey.test.TestProperties;
+import org.onlab.rest.AuthorizationFilter;
 
 /**
  * Base class for pce rest api tests.  Performs common configuration operations.
@@ -29,6 +30,7 @@
      */
     public PceResourceTest() {
         super(ResourceConfig.forApplicationClass(PceWebApplication.class));
+        AuthorizationFilter.disableForTests();
         set(TestProperties.CONTAINER_PORT, 0);
     }
 }