1 files changed, 110 insertions, 0 deletions
diff --git a/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/LinksListCommand.java b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/LinksListCommand.java
new file mode 100644
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--- /dev/null
+++ b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/LinksListCommand.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2014 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.net;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.Link;
+import org.onosproject.net.link.LinkService;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import static org.onosproject.net.DeviceId.deviceId;
+
+/**
+ * Lists all infrastructure links.
+ */
+@Command(scope = "onos", name = "links",
+         description = "Lists all infrastructure links")
+public class LinksListCommand extends AbstractShellCommand {
+
+    private static final String FMT = "src=%s/%s, dst=%s/%s, type=%s, state=%s%s";
+    private static final String COMPACT = "%s/%s-%s/%s";
+
+    @Argument(index = 0, name = "uri", description = "Device ID",
+              required = false, multiValued = false)
+    String uri = null;
+
+    @Override
+    protected void execute() {
+        LinkService service = get(LinkService.class);
+        Iterable<Link> links = uri != null ?
+                service.getDeviceLinks(deviceId(uri)) : service.getLinks();
+        if (outputJson()) {
+            print("%s", json(this, links));
+        } else {
+            for (Link link : links) {
+                print(linkString(link));
+            }
+        }
+    }
+
+    /**
+     * Produces a JSON array containing the specified links.
+     *
+     * @param context context to use for looking up codecs
+     * @param links collection of links
+     * @return JSON array
+     */
+    public static JsonNode json(AbstractShellCommand context, Iterable<Link> links) {
+        ObjectMapper mapper = new ObjectMapper();
+        ArrayNode result = mapper.createArrayNode();
+
+        links.forEach(link -> result.add(context.jsonForEntity(link, Link.class)));
+
+        return result;
+    }
+
+    /**
+     * Produces a JSON object for the specified link.
+     *
+     * @param context context to use for looking up codecs
+     * @param link   link to encode
+     * @return JSON object
+     */
+    public static ObjectNode json(AbstractShellCommand context, Link link) {
+         return context.jsonForEntity(link, Link.class);
+    }
+
+    /**
+     * Returns a formatted string representing the given link.
+     *
+     * @param link infrastructure link
+     * @return formatted link string
+     */
+    public static String linkString(Link link) {
+        return String.format(FMT, link.src().deviceId(), link.src().port(),
+                             link.dst().deviceId(), link.dst().port(),
+                             link.type(), link.state(),
+                             annotations(link.annotations()));
+    }
+
+    /**
+     * Returns a compact string representing the given link.
+     *
+     * @param link infrastructure link
+     * @return formatted link string
+     */
+    public static String compactLinkString(Link link) {
+        return String.format(COMPACT, link.src().deviceId(), link.src().port(),
+                             link.dst().deviceId(), link.dst().port());
+    }
+
+}