separate responder client from cli

1 files changed, 103 insertions, 0 deletions

diff --git a/src/main/java/derms/client/ResponderClientCLI.java b/src/main/java/derms/client/ResponderClientCLI.java
new file mode 100644
index 0000000..86a5a9a
--- /dev/null
+++ b/src/main/java/derms/client/ResponderClientCLI.java
@@ -0,0 +1,103 @@
+package derms.client;
+
+import derms.frontend.DERMSInterface;
+
+import java.net.MalformedURLException;
+
+public class ResponderClientCLI extends CLI {
+    public static final String usage = "Usage: java derms.client.ResponderClient <FE host>";
+
+    private final DERMSInterface server;
+
+    private ResponderClientCLI(String FEhost) throws MalformedURLException {
+        server = Client.connectToServer(FEhost);
+
+        commands.put("add", new Add());
+        cmdDescriptions.add(new CLI.Description(
+                "add <resource ID> <resource type> <duration>",
+                "Add ad resource to the server"));
+
+        commands.put("remove", new Remove());
+        cmdDescriptions.add(new CLI.Description(
+                "remove <resource ID> <duration>",
+                "Decrease the duration of a resource. If duration is negative, the resource is removed entirely."));
+
+        commands.put("list", new List());
+        cmdDescriptions.add(new CLI.Description(
+                "list <resource name>",
+                "List available resources"));
+    }
+
+    public static void main(String[] args) {
+        if (args.length < 1) {
+            System.err.println(usage);
+            System.exit(1);
+        }
+
+        String FEhost = args[0];
+
+        try {
+            (new ResponderClientCLI(FEhost)).run();
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private class Add implements CLI.Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 3)
+                System.out.println("invalid arguments for 'add'");
+            else
+                add(args[0], args[1], args[2]);
+        }
+
+        private void add(String resourceID, String resourceName, String durationStr) {
+            try {
+                int duration = Integer.parseInt(durationStr);
+                if (duration < 0) {
+                    throw new NumberFormatException("duration less than 0");
+                }
+                String response = server.addResource(resourceID, resourceName, duration);
+                System.out.println(response);
+            } catch (NumberFormatException e) {
+                System.out.println("invalid duration: " + durationStr);
+            }
+        }
+    }
+
+    private class Remove implements CLI.Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 2)
+                System.out.println("invalid arguments for 'remove'");
+            else
+                remove(args[0], args[1]);
+        }
+
+        private void remove(String resourceID, String durationStr) {
+            try {
+                int duration = Integer.parseInt(durationStr);
+                String response = server.removeResource(resourceID, duration);
+                System.out.println(response);
+            } catch (NumberFormatException e) {
+                System.out.println("invalid duration: " + durationStr);
+            }
+        }
+    }
+
+    private class List implements CLI.Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 1)
+                System.out.println("invalid arguments for 'list'");
+            else
+                list(args[0]);
+        }
+
+        private void list(String resourceName) {
+            String response = server.listResourceAvailability(resourceName);
+            System.out.println(response);
+        }
+    }
+}