Implement basic API (#15)

2 files changed, 69 insertions, 7 deletions

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
index 95ede6e..8eb8b4f 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
@@ -6,11 +6,14 @@ import java.rmi.registry.Registry;
 import java.rmi.server.UnicastRemoteObject;
 
 import pl.edu.mimuw.cloudatlas.api.Api;
+import pl.edu.mimuw.cloudatlas.interpreter.Main;
+import pl.edu.mimuw.cloudatlas.model.ZMI;
 
 public class Agent {
     public static void main(String[] args) {
         try {
-            ApiImplementation api = new ApiImplementation();
+            ZMI root = Main.createTestHierarchy2();
+            ApiImplementation api = new ApiImplementation(root);
             Api apiStub =
                 (Api) UnicastRemoteObject.exportObject(api, 0);
             Registry registry = LocateRegistry.getRegistry();
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/ApiImplementation.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/ApiImplementation.java
index fd52052..12682a6 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/ApiImplementation.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/ApiImplementation.java
@@ -5,32 +5,91 @@ import java.rmi.RemoteException;
 import java.util.Set;
 import java.util.HashSet;
 
+import pl.edu.mimuw.cloudatlas.model.Attribute;
 import pl.edu.mimuw.cloudatlas.model.AttributesMap;
+import pl.edu.mimuw.cloudatlas.model.PathName;
 import pl.edu.mimuw.cloudatlas.model.ValueContact;
 import pl.edu.mimuw.cloudatlas.model.Value;
+import pl.edu.mimuw.cloudatlas.model.ValueQuery;
 import pl.edu.mimuw.cloudatlas.model.ValueSet;
 import pl.edu.mimuw.cloudatlas.model.ValueNull;
 import pl.edu.mimuw.cloudatlas.model.TypePrimitive;
+import pl.edu.mimuw.cloudatlas.model.ZMI;
 import pl.edu.mimuw.cloudatlas.api.Api;
 
 public class ApiImplementation implements Api {
+    ZMI root;
+    Set<ValueContact> contacts;
+
+    public ApiImplementation(ZMI root) {
+        this.root = root;
+        this.contacts = new HashSet<ValueContact>();
+    }
+
     public Set<String> getZoneSet() throws RemoteException {
-        return null;
+        Set<String> zones = new HashSet<String>();
+        collectZoneNames(root, zones);
+        return zones;
+    }
+
+    private void collectZoneNames(ZMI zone, Set<String> names) {
+        names.add(zone.getPathName().toString());
+        for (ZMI son : zone.getSons()) {
+            collectZoneNames(son, names);
+        }
     }
 
-    public AttributesMap getZoneAttributeValue(String zoneName) throws RemoteException {
-        return null;
+    public AttributesMap getZoneAttributeValues(String zoneName) throws RemoteException {
+        try {
+            ZMI zmi = root.findDescendant(new PathName(zoneName));
+            return zmi.getAttributes();
+        } catch (ZMI.NoSuchZoneException e) {
+            throw new RemoteException("Zone not found", e);
+        }
     }
 
-    public void installQuery(String queryName, String query) throws RemoteException {
+    public void installQuery(String name, String queryCode) throws RemoteException {
+        try {
+            ValueQuery query = new ValueQuery(queryCode);
+            Attribute attributeName = new Attribute(name);
+            installQueryInHierarchy(root, attributeName, query);
+        } catch (Exception e) {
+            throw new RemoteException("Failed to install query", e);
+        }
+    }
+
+    private void installQueryInHierarchy(ZMI zmi, Attribute queryName, ValueQuery query) {
+        if (!zmi.getSons().isEmpty()) {
+            zmi.getAttributes().addOrChange(queryName, query);
+            for (ZMI son : zmi.getSons()) {
+                installQueryInHierarchy(son, queryName, query);
+            }
+        }
     }
 
     public void uninstallQuery(String queryName) throws RemoteException {
+        uninstallQueryInHierarchy(root, new Attribute(queryName));
+    }
+
+    private void uninstallQueryInHierarchy(ZMI zmi, Attribute queryName) {
+        if (!zmi.getSons().isEmpty()) {
+            zmi.getAttributes().remove(queryName);
+            for (ZMI son : zmi.getSons()) {
+                uninstallQueryInHierarchy(son, queryName);
+            }
+        }
     }
 
-    public void setAttributeValue(String attributeName, Value value) throws RemoteException {
+    public void setAttributeValue(String zoneName, String attributeName, Value value) throws RemoteException {
+        try {
+            ZMI zmi = root.findDescendant(new PathName(zoneName));
+            zmi.getAttributes().addOrChange(new Attribute(attributeName), value);
+        } catch (ZMI.NoSuchZoneException e) {
+            throw new RemoteException("Zone not found", e);
+        }
     }
 
-    public void setFallbackContacts(Set<ValueContact> serializedContacts) throws RemoteException {
+    public void setFallbackContacts(Set<ValueContact> contacts) throws RemoteException {
+        this.contacts = contacts;
     }
 }