ONOS-1597 - add an optional appId to CLI commands that create intents

Change-Id: Iaf14f1a98f617eb025dab1b16542d68184082ceb
diff --git a/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java b/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java
new file mode 100644
index 0000000..9006369
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2015 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.cli.app;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Spliterator;
+import java.util.Spliterators;
+import java.util.stream.StreamSupport;
+
+import org.onosproject.app.ApplicationService;
+import org.onosproject.cli.AbstractChoicesCompleter;
+import org.onosproject.core.Application;
+
+import static java.util.stream.Collectors.toList;
+import static org.onosproject.app.ApplicationState.INSTALLED;
+import static org.onosproject.cli.AbstractShellCommand.get;
+
+/**
+ * All installed application name completer.
+ */
+public class AllApplicationNamesCompleter extends AbstractChoicesCompleter {
+    @Override
+    public List<String> choices() {
+
+        // Fetch the service and return the list of app names
+        ApplicationService service = get(ApplicationService.class);
+        Iterator<Application> it = service.getApplications().iterator();
+
+        // Filter the list of apps, selecting only the installed ones.
+        // Add each app name to the list of choices.
+        return
+            StreamSupport.stream(
+                Spliterators.spliteratorUnknownSize(it, Spliterator.ORDERED), false)
+                    .filter(app -> service.getState(app.id()) == INSTALLED)
+                    .map(app -> app.id().name())
+                    .collect(toList());
+
+    }
+
+}