1 files changed, 97 insertions, 0 deletions
diff --git a/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/PathListCommand.java b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/PathListCommand.java
new file mode 100644
index 00000000..141ae266
--- /dev/null
+++ b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/PathListCommand.java
@@ -0,0 +1,97 @@
+/*
+ * 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 com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+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.Path;
+
+import java.util.Set;
+
+import static org.onosproject.cli.net.LinksListCommand.compactLinkString;
+import static org.onosproject.net.DeviceId.deviceId;
+
+/**
+ * Lists all shortest-paths paths between the specified source and
+ * destination devices.
+ */
+@Command(scope = "onos", name = "paths",
+         description = "Lists all shortest-paths paths between the specified source and destination devices")
+public class PathListCommand extends TopologyCommand {
+
+    private static final String SEP = "==>";
+
+    @Argument(index = 0, name = "src", description = "Source device ID",
+              required = true, multiValued = false)
+    String src = null;
+
+    @Argument(index = 1, name = "dst", description = "Destination device ID",
+              required = true, multiValued = false)
+    String dst = null;
+
+    @Override
+    protected void execute() {
+        init();
+        Set<Path> paths = service.getPaths(topology, deviceId(src), deviceId(dst));
+        if (outputJson()) {
+            print("%s", json(this, paths));
+        } else {
+            for (Path path : paths) {
+                print(pathString(path));
+            }
+        }
+    }
+
+    /**
+     * Produces a JSON array containing the specified paths.
+     *
+     * @param context context to use for looking up codecs
+     * @param paths collection of paths
+     * @return JSON array
+     */
+    public static JsonNode json(AbstractShellCommand context, Iterable<Path> paths) {
+        ObjectMapper mapper = new ObjectMapper();
+        ArrayNode result = mapper.createArrayNode();
+        for (Path path : paths) {
+            result.add(LinksListCommand.json(context, path)
+                    .put("cost", path.cost())
+                    .set("links", LinksListCommand.json(context, path.links())));
+        }
+        return result;
+    }
+
+    /**
+     * Produces a formatted string representing the specified path.
+     *
+     * @param path network path
+     * @return formatted path string
+     */
+    protected String pathString(Path path) {
+        StringBuilder sb = new StringBuilder();
+        for (Link link : path.links()) {
+            sb.append(compactLinkString(link)).append(SEP);
+        }
+        sb.delete(sb.lastIndexOf(SEP), sb.length());
+        sb.append("; cost=").append(path.cost());
+        return sb.toString();
+    }
+
+}