Merge branch 'master' into netgraphrefactor

Conflicts:
	src/test/java/net/floodlightcontroller/core/internal/TestDatabaseManager.java
	src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
diff --git a/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java b/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
new file mode 100644
index 0000000..7bf2b1a
--- /dev/null
+++ b/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
@@ -0,0 +1,536 @@
+package net.onrc.onos.ofcontroller.core.internal;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.floodlightcontroller.routing.Link;
+import net.onrc.onos.ofcontroller.core.ILinkStorage;
+import net.onrc.onos.ofcontroller.core.INetMapStorage.DM_OPERATION;
+import net.onrc.onos.ofcontroller.core.internal.TestableGraphDBOperation.TestPortObject;
+import net.onrc.onos.util.GraphDBConnection;
+import net.onrc.onos.util.GraphDBOperation;
+import net.onrc.onos.ofcontroller.linkdiscovery.LinkInfo;
+
+import org.easymock.EasyMock;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.openflow.protocol.OFPhysicalPort;
+import org.openflow.util.HexString;
+import org.powermock.api.easymock.PowerMock;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest({LinkStorageImpl.class, GraphDBConnection.class, GraphDBOperation.class})
+public class LinkStorageImplTest {
+	protected static Logger log = LoggerFactory.getLogger(LinkStorageImplTest.class);
+
+	private static ILinkStorage linkStorage;
+	
+	// Mock GraphDBConnection (do nothing)
+	private static GraphDBConnection conn;
+	
+	// Mock GraphDBOperation (mocks port-related methods only)
+	private static TestableGraphDBOperation ope;
+
+	/**
+	 * Setup code called before each tests.
+	 * Read test graph data and replace DB access by test graph data.
+	 * @throws Exception
+	 */
+	@Before
+	public void setUp() throws Exception{
+		PowerMock.mockStatic(GraphDBConnection.class);
+		PowerMock.suppress(PowerMock.constructor(GraphDBConnection.class));
+		conn = PowerMock.createNiceMock(GraphDBConnection.class);
+		EasyMock.expect(GraphDBConnection.getInstance((String)EasyMock.anyObject())).andReturn(conn).anyTimes();
+		PowerMock.replay(GraphDBConnection.class);
+		
+		ope = new TestableGraphDBOperation();
+		PowerMock.expectNew(GraphDBOperation.class, (GraphDBConnection)EasyMock.anyObject()).andReturn(ope).anyTimes();
+		PowerMock.replay(GraphDBOperation.class);
+
+		linkStorage = new LinkStorageImpl();
+		linkStorage.init("/dummy/path/to/conf");
+		
+		initLinks();
+	}
+	
+	/**
+	 * Closing code called after each tests.
+	 * Discard test graph data.
+	 * @throws Exception
+	 */
+	@After
+	public void tearDown() throws Exception {
+		// finish code
+		linkStorage.close();
+		ope.close();
+	}
+	
+	// TODO: remove @Ignore after UPDATE method is implemented
+	/**
+	 * Test if update() can correctly updates LinkInfo for a Link.
+	 */
+	@Ignore @Test
+	public void testUpdate_UpdateSingleLink() {
+		Link linkToUpdate= createExistingLink();
+		long currentTime = System.currentTimeMillis();
+		LinkInfo infoToUpdate = createFeasibleLinkInfo(currentTime);
+		LinkInfo infoToVerify = createFeasibleLinkInfo(currentTime);
+
+		linkStorage.update(linkToUpdate, infoToUpdate, ILinkStorage.DM_OPERATION.UPDATE);
+		
+		doTestLinkHasStateOf(linkToUpdate, infoToVerify);
+	}
+	
+	/**
+	 * Test if update() can correctly creates a Link.
+	 */
+	@Test
+	public void testUpdate_CreateSingleLink() {
+		Link linkToCreate = createFeasibleLink();
+		Link linkToVerify = createFeasibleLink();
+		
+		//Use the link storage API to add the link
+		linkStorage.update(linkToCreate, ILinkStorage.DM_OPERATION.CREATE);
+		doTestLinkExist(linkToVerify);
+	}
+
+	/**
+	 * Test if update() can correctly inserts a Link.
+	 */
+	@Test
+	public void testUpdate_InsertSingleLink(){
+		Link linkToInsert = createFeasibleLink();
+		Link linkToVerify = createFeasibleLink();
+		
+		//Use the link storage API to add the link
+		linkStorage.update(linkToInsert, ILinkStorage.DM_OPERATION.INSERT);
+		doTestLinkExist(linkToVerify);
+	}
+	
+	/**
+	 * Test if update() can correctly deletes a Link.
+	 */
+	@Test
+	public void testUpdate_DeleteSingleLink(){
+		Link linkToDelete = createExistingLink();
+		Link linkToVerify = createExistingLink();
+
+		// Test deletion of existing link
+		linkStorage.update(linkToDelete, DM_OPERATION.DELETE);
+		doTestLinkNotExist(linkToVerify);
+	}
+
+	/**
+	 * Test if update() can correctly creates multiple Links.
+	 */
+	@Test
+	public void testUpdate_CreateLinks(){
+		List<Link> linksToCreate = createFeasibleLinks();
+		List<Link> linksToVerify = createFeasibleLinks();
+
+		// Test creation of new links
+		linkStorage.update(linksToCreate, ILinkStorage.DM_OPERATION.CREATE);
+		for(Link l : linksToVerify) {
+			doTestLinkExist(l);
+		}
+	}
+	
+	/**
+	 * Test if update() can handle mixture of normal/abnormal input for creation of Links.
+	 * Deprecated: DBOperation is responsible.
+	 */
+	@Ignore @Test
+	public void testUpdate_CreateLinks_Mixuture(){
+		List<Link> linksToCreate = new ArrayList<Link>();
+		linksToCreate.add(createFeasibleLink());
+		linksToCreate.add(createExistingLink());
+		
+		// Test creation of mixture of new/existing links
+		linkStorage.update(linksToCreate, ILinkStorage.DM_OPERATION.CREATE);
+		doTestLinkExist(createFeasibleLink());
+		doTestLinkExist(createExistingLink());
+	}
+
+	/**
+	 * Test if update() can correctly inserts multiple Links.
+	 */
+	@Test
+	public void testUpdate_InsertLinks(){
+		List<Link> linksToInsert = createFeasibleLinks();
+		List<Link> linksToVerify = createFeasibleLinks();
+		
+		// Test insertion of new links
+		linkStorage.update(linksToInsert, ILinkStorage.DM_OPERATION.INSERT);
+		for(Link l : linksToVerify) {
+			doTestLinkExist(l);
+		}
+	}
+	
+	/**
+	 * Test if update() can handle mixture of normal/abnormal input for creation of Links.
+	 */
+	@Ignore @Test
+	public void testUpdate_InsertLinks_Mixuture(){
+		List<Link> linksToInsert = new ArrayList<Link>();
+		linksToInsert.add(createFeasibleLink());
+		linksToInsert.add(createExistingLink());
+		
+		// Test insertion of mixture of new/existing links
+		linkStorage.update(linksToInsert, ILinkStorage.DM_OPERATION.INSERT);
+		doTestLinkExist(createFeasibleLink());
+		doTestLinkExist(createExistingLink());
+	}
+
+	/**
+	 * Test if update() can correctly deletes multiple Links.
+	 */
+	@Test
+	public void testUpdate_DeleteLinks(){
+		List<Link> linksToDelete = createExistingLinks();
+		List<Link> linksToVerify = createExistingLinks();
+		
+		// Test deletion of existing links
+		linkStorage.update(linksToDelete, ILinkStorage.DM_OPERATION.DELETE);
+		for(Link l : linksToVerify) {
+			doTestLinkNotExist(l);
+		}
+	}
+	
+	/**
+	 * Test if update() can handle mixture of normal/abnormal input for deletion of Links.
+	 */
+	@Ignore @Test
+	public void testUpdate_DeleteLinks_Mixuture(){
+		List<Link> linksToDelete = new ArrayList<Link>();
+		linksToDelete.add(createFeasibleLink());
+		linksToDelete.add(createExistingLink());
+		
+		// Test deletion of mixture of new/existing links
+		linkStorage.update(linksToDelete, ILinkStorage.DM_OPERATION.DELETE);
+		doTestLinkNotExist(createFeasibleLink());
+		doTestLinkNotExist(createExistingLink());
+	}
+	
+	// TODO: remove @Ignore after UPDATE method is implemented
+	/**
+	 * Test if updateLink() can correctly updates LinkInfo for a Link.
+	 */
+	@Ignore @Test
+	public void testUpdateLink_Update() {
+		Link linkToUpdate= createExistingLink();
+		long currentTime = System.currentTimeMillis();
+		LinkInfo infoToUpdate = createFeasibleLinkInfo(currentTime);
+		LinkInfo infoToVerify = createFeasibleLinkInfo(currentTime);
+
+		linkStorage.updateLink(linkToUpdate, infoToUpdate, ILinkStorage.DM_OPERATION.UPDATE);
+		
+		doTestLinkHasStateOf(linkToUpdate, infoToVerify);
+	}
+	
+	/**
+	 * Test if updateLink() can correctly creates a Link.
+	 */
+	@Test
+	public void testUpdateLink_Create() {
+		Link linkToCreate = createFeasibleLink();
+		Link linkToVerify = createFeasibleLink();
+		
+		//Use the link storage API to add the link
+		linkStorage.updateLink(linkToCreate, null, ILinkStorage.DM_OPERATION.CREATE);
+		doTestLinkExist(linkToVerify);
+	}
+	
+	/**
+	 * Test if updateLink() can correctly inserts a Link.
+	 */
+	@Test
+	public void testUpdateLink_Insert() {
+		Link linkToInsert = createFeasibleLink();
+		Link linkToVerify = createFeasibleLink();
+		
+		//Use the link storage API to add the link
+		linkStorage.updateLink(linkToInsert, null, ILinkStorage.DM_OPERATION.INSERT);
+
+		doTestLinkExist(linkToVerify);
+	}
+	
+	// TODO: Check if addOrUpdateLink() should accept DELETE operation. If not, remove this test.
+	/**
+	 * Test if updateLink() can correctly deletes a Link.
+	 */
+	@Ignore @Test
+	public void testUpdateLink_Delete() {
+		Link linkToDelete = createExistingLink();
+		Link linkToVerify = createExistingLink();
+
+		// Test deletion of existing link
+		linkStorage.updateLink(linkToDelete, null, DM_OPERATION.DELETE);
+		doTestLinkNotExist(linkToVerify);
+		
+		linkToDelete = createFeasibleLink();
+		linkToVerify = createFeasibleLink();
+
+		// Test deletion of not-existing link
+		linkStorage.updateLink(linkToDelete, null, DM_OPERATION.DELETE);
+		doTestLinkNotExist(linkToVerify);
+	}
+	
+	/**
+	 * Test if getLinks() can correctly return Links connected to specific DPID and port.
+	 */
+	@Test
+	public void testGetLinks_ByDpidPort(){
+		Link linkToVerify = createExistingLink();
+		Long dpid = linkToVerify.getSrc();
+		short port = (short)linkToVerify.getSrcPort();
+		
+		List<Link> list = linkStorage.getLinks(dpid, port);
+		
+		assertEquals(list.size(), 1);
+		
+		Link l = list.get(0);
+		assertEquals(l.getSrc(), linkToVerify.getSrc());
+		assertEquals(l.getSrcPort(), linkToVerify.getSrcPort());
+		assertEquals(l.getDst(), linkToVerify.getDst());
+		assertEquals(l.getDstPort(), linkToVerify.getDstPort());
+		
+		Link linkToVerifyNot = createFeasibleLink();
+		
+		List<Link> list2 = linkStorage.getLinks(linkToVerifyNot.getSrc(), (short)linkToVerifyNot.getSrcPort());
+		
+		assertEquals(list2.size(), 0);
+	}
+	
+	/**
+	 * Test if getLinks() can correctly return Links connected to specific MAC address.
+	 */
+	@Test
+	public void testGetLinks_ByString() {
+		Link linkToVeryfy = createExistingLink();
+		String dpid = HexString.toHexString(linkToVeryfy.getSrc());
+		
+		List<Link> links = linkStorage.getLinks(dpid);
+		assertTrue(links.contains(linkToVeryfy));
+
+		Link linkToVerifyNot = createFeasibleLink();
+		assertFalse(links.contains(linkToVerifyNot));
+	}
+	
+	/**
+	 * Test if deleteLink() can correctly delete a Link.
+	 */
+	@Test
+	public void testDeleteLink() {
+		// Deletion of existing link
+		Link linkToDelete = createExistingLink();
+		Link linkToVerify = createExistingLink();
+		
+		linkStorage.deleteLink(linkToDelete);
+		doTestLinkNotExist(linkToVerify);
+	}
+	
+	/**
+	 * Test if deleteLinks() can correctly delete Links.
+	 */
+	@Test
+	public void testDeleteLinks(){
+		List<Link> linksToDelete = createExistingLinks();
+		List<Link> linksToVerify = createExistingLinks();
+		
+		linkStorage.deleteLinks(linksToDelete);
+		for(Link l : linksToVerify) {
+			doTestLinkNotExist(l);
+		}
+	}
+	
+	/**
+	 * Test if deleteLinks() can handle mixture of normal/abnormal input.
+	 */
+	@Ignore @Test
+	public void testDeleteLinks_Mixture(){
+		List<Link> linksToDelete = new ArrayList<Link>();
+		linksToDelete.add(createFeasibleLink());
+		linksToDelete.add(createExistingLink());
+		
+		// Test deletion of mixture of new/existing links
+		linkStorage.deleteLinks(linksToDelete);
+		doTestLinkNotExist(createFeasibleLink());
+		doTestLinkNotExist(createExistingLink());
+	}
+
+	/**
+	 * Test if getActiveLinks() can correctly return active Links.
+	 */
+	@Test
+	public void testGetActiveLinks() {
+		Link existingLink = createExistingLink();
+		Link notExistingLink = createFeasibleLink();
+
+		List<Link> links = linkStorage.getActiveLinks();
+		
+		assertTrue(links.contains(existingLink));
+		assertFalse(links.contains(notExistingLink));
+	}
+	
+	/**
+	 * Test if deleteLinksOnPort() can delete Links.
+	 */
+	@Test
+	public void testDeleteLinksOnPort() {
+		Link linkToDelete = createExistingLink();
+		Link linkToVerify = createExistingLink();
+		
+		linkStorage.deleteLinksOnPort(linkToDelete.getSrc(), linkToDelete.getSrcPort());
+		
+		doTestLinkNotExist(linkToVerify);
+	}
+
+	/**
+	 * Test if specific link is existing
+	 * @param link 
+	 */
+	private void doTestLinkExist(Link link) {
+		assertTrue(ope.hasLinkBetween(HexString.toHexString(link.getSrc()),
+				link.getSrcPort(),
+				HexString.toHexString(link.getDst()),
+				link.getDstPort()));
+	}
+	
+	/**
+	 * Test if titanGraph doesn't have specific link
+	 * @param link
+	 */
+	private void doTestLinkNotExist(Link link) {
+		assertFalse(ope.hasLinkBetween(HexString.toHexString(link.getSrc()),
+				link.getSrcPort(),
+				HexString.toHexString(link.getDst()),
+				link.getDstPort()));
+	}
+	
+	/**
+	 * Test if titanGraph has specific Link with specific LinkInfo
+	 * @param link 
+	 */
+	private void doTestLinkHasStateOf(Link link, LinkInfo info) {
+	}
+	
+	//----------------- Creation of test data -----------------------
+	// Assume a network shown below.
+	//
+	// [dpid1]--+--[port:1]----[port:1]--+--[dpid2]
+	//          |                        |
+	//          +--[port:2]    [port:2]--+
+	//          |
+	//          +--[port:3]    [port:1]--+--[dpid3]
+	//          |                        |
+	//          +--[port:4]----[port:2]--+
+	//
+	// dpid1 : 00:00:00:00:0a:01
+	// dpid2 : 00:00:00:00:0a:02
+	// dpid3 : 00:00:00:00:0a:03
+	
+	private void initLinks() {
+		final String dpid1 = "00:00:00:00:0a:01";
+		final String dpid2 = "00:00:00:00:0a:02";
+		final String dpid3 = "00:00:00:00:0a:03";
+		
+		ope.createNewSwitchForTest(dpid1).setStateForTest("ACTIVE");
+		ope.createNewSwitchForTest(dpid2).setStateForTest("ACTIVE");
+		ope.createNewSwitchForTest(dpid3).setStateForTest("ACTIVE");
+
+		TestPortObject ports1 [] = {
+				ope.createNewPortForTest(dpid1, (short)1),
+				ope.createNewPortForTest(dpid1, (short)2),
+				ope.createNewPortForTest(dpid1, (short)3),
+				ope.createNewPortForTest(dpid1, (short)4),
+		};
+
+		TestPortObject ports2 [] = {
+				ope.createNewPortForTest(dpid2, (short)1),
+				ope.createNewPortForTest(dpid2, (short)2),
+		};
+
+		TestPortObject ports3 [] = {
+				ope.createNewPortForTest(dpid3, (short)1),
+				ope.createNewPortForTest(dpid3, (short)2),
+		};
+		
+		ope.setLinkBetweenPortsForTest(ports1[0], ports2[0]);
+		ope.setLinkBetweenPortsForTest(ports1[3], ports3[1]);
+	}
+	
+	/**
+	 * Returns new Link object of existing link
+	 * @return new Link object
+	 */
+	private Link createExistingLink() {
+		return new Link(Long.decode("0x0000000000000a01"), 1, Long.decode("0x0000000000000a02"), 1);
+	}
+	
+	/**
+	 * Returns new Link object of not-existing but feasible link
+	 * @return new Link object
+	 */
+	private Link createFeasibleLink() {
+		return new Link(Long.decode("0x0000000000000a01"), 3, Long.decode("0x0000000000000a03"), 1);
+	}
+	
+	// make NO sense while test-network data doesn't define physical network (i.e. any link is feasible)
+	@SuppressWarnings("unused")
+	private Link createInfeasibleLink() {
+		return new Link(Long.decode("0x0000000000000a01"), 1, Long.decode("0x0000000000000a03"), 3);
+	}
+
+	/**
+	 * Returns list of Link objects which all has information of existing link in titanGraph
+	 * @return ArrayList of new Link objects
+	 */
+	private List<Link> createExistingLinks() {
+		List<Link> links = new ArrayList<Link>();
+		links.add(new Link(Long.decode("0x0000000000000a01"), 1, Long.decode("0x0000000000000a02"), 1));
+		links.add(new Link(Long.decode("0x0000000000000a01"), 4, Long.decode("0x0000000000000a03"), 2));
+		return links;
+	}
+	
+	/**
+	 * Returns list of Link objects which all has information of not-existing but feasible link
+	 * @return ArrayList of new Link objects
+	 */
+	private List<Link> createFeasibleLinks() {
+		List<Link> links = new ArrayList<Link>();
+		links.add(new Link(Long.decode("0x0000000000000a01"), 2, Long.decode("0x0000000000000a02"), 2));
+		links.add(new Link(Long.decode("0x0000000000000a01"), 3, Long.decode("0x0000000000000a03"), 1));
+		return links;
+	}
+	
+	/**
+	 * Returns new LinkInfo object with convenient values.
+	 * @return LinkInfo object
+	 */
+	private LinkInfo createFeasibleLinkInfo(long time) {
+		long time_first = time;
+		long time_last_lldp = time + 50;
+		long time_last_bddp = time + 100;
+		int state_src = OFPhysicalPort.OFPortState.OFPPS_STP_FORWARD.getValue();
+		int state_dst = OFPhysicalPort.OFPortState.OFPPS_STP_LISTEN.getValue();
+
+		return new LinkInfo(time_first,
+				time_last_lldp,
+				time_last_bddp,
+				state_src,
+				state_dst);
+	}
+	//---------------------------------------------------------------
+}