Merge pull request #83 from m-chrzan/remik

Use new modular architecture when implementing the RMI API

1 files changed, 198 insertions, 0 deletions

diff --git a/src/test/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementationTests.java b/src/test/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementationTests.java
new file mode 100644
index 0000000..6330648
--- /dev/null
+++ b/src/test/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementationTests.java
@@ -0,0 +1,198 @@
+package pl.edu.mimuw.cloudatlas.agent;
+
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.hasItems;
+
+import java.util.concurrent.TimeUnit;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import pl.edu.mimuw.cloudatlas.Container;
+import pl.edu.mimuw.cloudatlas.agent.modules.ModuleType;
+import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.RequestStateMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.SetAttributeMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.StanikMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.StateMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.UpdateQueriesMessage;
+import pl.edu.mimuw.cloudatlas.model.Attribute;
+import pl.edu.mimuw.cloudatlas.model.AttributesMap;
+import pl.edu.mimuw.cloudatlas.model.TestUtil;
+import pl.edu.mimuw.cloudatlas.model.ValueInt;
+import pl.edu.mimuw.cloudatlas.model.ValueString;
+import pl.edu.mimuw.cloudatlas.model.ValueQuery;
+import pl.edu.mimuw.cloudatlas.model.ValueTime;
+import pl.edu.mimuw.cloudatlas.model.ZMI;
+
+public class NewApiImplementationTests {
+    private NewApiImplementation api;
+    private MockEventBus eventBus;
+
+    @Before
+    public void initializeApi() throws Exception {
+        eventBus = new MockEventBus();
+        api = new NewApiImplementation(eventBus);
+    }
+
+    @Test
+    public void testGetZoneSet() throws Exception {
+        final Set<String> zoneSet = new HashSet();
+        final Container<Exception> exceptionContainer = new Container();
+        Thread apiThread = new Thread(() -> {
+            try {
+                zoneSet.addAll(api.getZoneSet());
+            } catch (Exception e) {
+                exceptionContainer.thing = e;
+            }
+        });
+        apiThread.start();
+
+        AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
+        assertNotNull(message);
+        assertEquals(ModuleType.RMI, message.getDestinationModule());
+        RequestStateMessage requestMessage = (RequestStateMessage) message;
+
+        ZMI root = new ZMI();
+        StateMessage responseMessage = new StateMessage("", ModuleType.RMI, 0, 0, root, null);
+        requestMessage.getFuture().complete(responseMessage);
+
+        apiThread.join(100);
+        assertFalse(apiThread.isAlive());
+        assertNull(exceptionContainer.thing);
+
+        assertThat(zoneSet, hasItems("/"));
+    }
+
+    @Test
+    public void testRootGetZoneAttributeValues() throws Exception {
+        final Container<AttributesMap> attributes = new Container();
+        final Container<Exception> exceptionContainer = new Container();
+        Thread apiThread = new Thread(() -> {
+            try {
+                attributes.thing = api.getZoneAttributeValues("/");
+            } catch (Exception e) {
+                exceptionContainer.thing = e;
+            }
+        });
+        apiThread.start();
+
+        AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
+        assertNotNull(message);
+        assertEquals(ModuleType.RMI, message.getDestinationModule());
+        RequestStateMessage requestMessage = (RequestStateMessage) message;
+
+        ZMI zmi = new ZMI();
+        zmi.getAttributes().add("timestamp", new ValueTime(42l));
+        StateMessage response = new StateMessage("", ModuleType.RMI, 0, 0, zmi, new HashMap());
+        requestMessage.getFuture().complete(response);
+
+        apiThread.join(100);
+        assertFalse(apiThread.isAlive());
+        assertNull(exceptionContainer.thing);
+
+        assertEquals(new ValueTime(42l), attributes.thing.getOrNull("timestamp"));
+    }
+
+    @Test
+    public void testGetZoneAttributeValues() throws Exception {
+        final Container<AttributesMap> attributes = new Container();
+        final Container<Exception> exceptionContainer = new Container();
+        Thread apiThread = new Thread(() -> {
+            try {
+                attributes.thing = api.getZoneAttributeValues("/son");
+            } catch (Exception e) {
+                exceptionContainer.thing = e;
+            }
+        });
+        apiThread.start();
+
+        AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
+        assertNotNull(message);
+        assertEquals(ModuleType.RMI, message.getDestinationModule());
+        RequestStateMessage requestMessage = (RequestStateMessage) message;
+
+        ZMI zmi = new ZMI();
+        zmi.getAttributes().add("timestamp", new ValueTime(42l));
+        ZMI son = new ZMI(zmi);
+        zmi.addSon(son);
+        son.getAttributes().add("name", new ValueString("son"));
+        son.getAttributes().add("timestamp", new ValueTime(43l));
+        StateMessage response = new StateMessage("", ModuleType.RMI, 0, 0, zmi, new HashMap());
+        requestMessage.getFuture().complete(response);
+
+        apiThread.join(100);
+        assertFalse(apiThread.isAlive());
+        assertNull(exceptionContainer.thing);
+
+        assertEquals(new ValueTime(43l), attributes.thing.getOrNull("timestamp"));
+        assertEquals(new ValueString("son"), attributes.thing.getOrNull("name"));
+    }
+
+    @Test
+    public void testInstallQuery() throws Exception {
+        String name = "&query";
+        String queryCode = "SELECT 1 AS one";
+        long timeBefore = System.currentTimeMillis();
+        api.installQuery(name, queryCode);
+        long timeAfter = System.currentTimeMillis();
+
+        assertEquals(1, eventBus.events.size());
+        AgentMessage message = eventBus.events.take();
+        assertEquals(ModuleType.STATE, message.getDestinationModule());
+        StanikMessage stanikMessage = (StanikMessage) message;
+        assertEquals(StanikMessage.Type.UPDATE_QUERIES, stanikMessage.getType());
+        UpdateQueriesMessage updateMessage = (UpdateQueriesMessage) stanikMessage;
+        Map<Attribute, Entry<ValueQuery, ValueTime>> queries = updateMessage.getQueries();
+        assertEquals(1, TestUtil.iterableSize(queries.keySet()));
+        assertEquals(new ValueQuery("SELECT 1 AS one"), queries.get(new Attribute("&query")).getKey());
+        long timestamp = queries.get(new Attribute("&query")).getValue().getValue();
+        assertTrue(timeBefore <= timestamp);
+        assertTrue(timestamp <= timeAfter);
+    }
+
+    @Test
+    public void testUninstallQuery() throws Exception {
+        String name = "&query";
+        long timeBefore = System.currentTimeMillis();
+        api.uninstallQuery(name);
+        long timeAfter = System.currentTimeMillis();
+
+        assertEquals(1, eventBus.events.size());
+        AgentMessage message = eventBus.events.take();
+        assertEquals(ModuleType.STATE, message.getDestinationModule());
+        StanikMessage stanikMessage = (StanikMessage) message;
+        assertEquals(StanikMessage.Type.UPDATE_QUERIES, stanikMessage.getType());
+        UpdateQueriesMessage updateMessage = (UpdateQueriesMessage) stanikMessage;
+        Map<Attribute, Entry<ValueQuery, ValueTime>> queries = updateMessage.getQueries();
+        assertEquals(1, TestUtil.iterableSize(queries.keySet()));
+        assertNull(queries.get(new Attribute("&query")).getKey());
+        long timestamp = queries.get(new Attribute("&query")).getValue().getValue();
+        assertTrue(timeBefore <= timestamp);
+        assertTrue(timestamp <= timeAfter);
+    }
+
+    @Test
+    public void testSetAttributeValueChange() throws Exception {
+        ValueInt numProcesses = new ValueInt(42l);
+        long timeBefore = System.currentTimeMillis();
+        api.setAttributeValue("/uw/khaki13", "num_processes", numProcesses);
+        long timeAfter = System.currentTimeMillis();
+
+        assertEquals(1, eventBus.events.size());
+        AgentMessage message = eventBus.events.take();
+        assertEquals(ModuleType.STATE, message.getDestinationModule());
+        StanikMessage stanikMessage = (StanikMessage) message;
+        assertEquals(StanikMessage.Type.SET_ATTRIBUTE, stanikMessage.getType());
+        SetAttributeMessage setMessage = (SetAttributeMessage) stanikMessage;
+        assertEquals(new Attribute("num_processes"), setMessage.getAttribute());
+        assertEquals(new ValueInt(42l), setMessage.getValue());
+        long timestamp = setMessage.getUpdateTimestamp().getValue();
+        assertTrue(timeBefore <= timestamp);
+        assertTrue(timestamp <= timeAfter);
+    }
+}