1 files changed, 127 insertions, 0 deletions

diff --git a/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java b/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java
new file mode 100644
index 00000000..7de6d624
--- /dev/null
+++ b/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2015 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.ui.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableSet;
+import org.onosproject.net.Link;
+import org.onosproject.net.link.LinkService;
+import org.onosproject.ui.RequestHandler;
+import org.onosproject.ui.UiMessageHandler;
+import org.onosproject.ui.topo.BaseLink;
+import org.onosproject.ui.topo.BaseLinkMap;
+import org.onosproject.ui.table.TableModel;
+import org.onosproject.ui.table.TableRequestHandler;
+import org.onosproject.ui.table.cell.ConnectPointFormatter;
+import org.onosproject.ui.table.cell.EnumFormatter;
+
+import java.util.Collection;
+
+/**
+ * Message handler for link view related messages.
+ */
+public class LinkViewMessageHandler extends UiMessageHandler {
+
+    private static final String A_BOTH_B = "A ↔ B";
+    private static final String A_SINGLE_B = "A → B";
+    private static final String SLASH = " / ";
+
+    private static final String LINK_DATA_REQ = "linkDataRequest";
+    private static final String LINK_DATA_RESP = "linkDataResponse";
+    private static final String LINKS = "links";
+
+    private static final String ONE = "one";
+    private static final String TWO = "two";
+    private static final String TYPE = "type";
+    private static final String STATE = "_iconid_state";
+    private static final String DIRECTION = "direction";
+    private static final String DURABLE = "durable";
+
+    private static final String[] COL_IDS = {
+            ONE, TWO, TYPE, STATE, DIRECTION, DURABLE
+    };
+
+    private static final String ICON_ID_ONLINE = "active";
+    private static final String ICON_ID_OFFLINE = "inactive";
+
+    @Override
+    protected Collection<RequestHandler> createRequestHandlers() {
+        return ImmutableSet.of(new LinkDataRequest());
+    }
+
+    // handler for link table requests
+    private final class LinkDataRequest extends TableRequestHandler {
+        private LinkDataRequest() {
+            super(LINK_DATA_REQ, LINK_DATA_RESP, LINKS);
+        }
+
+        @Override
+        protected String[] getColumnIds() {
+            return COL_IDS;
+        }
+
+        @Override
+        protected String defaultColumnId() {
+            return ONE;
+        }
+
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setFormatter(ONE, ConnectPointFormatter.INSTANCE);
+            tm.setFormatter(TWO, ConnectPointFormatter.INSTANCE);
+            tm.setFormatter(TYPE, EnumFormatter.INSTANCE);
+            return tm;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            LinkService ls = get(LinkService.class);
+            BaseLinkMap linkMap = new BaseLinkMap();
+            ls.getLinks().forEach(linkMap::add);
+            linkMap.biLinks().forEach(blink -> populateRow(tm.addRow(), blink));
+        }
+
+        private void populateRow(TableModel.Row row, BaseLink blink) {
+            row.cell(ONE, blink.one().src())
+                .cell(TWO, blink.one().dst())
+                .cell(TYPE, linkType(blink))
+                .cell(STATE, linkState(blink))
+                .cell(DIRECTION, linkDir(blink))
+                .cell(DURABLE, blink.one().isDurable());
+        }
+
+        private String linkType(BaseLink link) {
+            StringBuilder sb = new StringBuilder();
+            sb.append(link.one().type());
+            if (link.two() != null && link.two().type() != link.one().type()) {
+                sb.append(SLASH).append(link.two().type());
+            }
+            return sb.toString();
+        }
+
+        private String linkState(BaseLink link) {
+            return (link.one().state() == Link.State.ACTIVE ||
+                    link.two().state() == Link.State.ACTIVE) ?
+                    ICON_ID_ONLINE : ICON_ID_OFFLINE;
+        }
+
+        private String linkDir(BaseLink link) {
+            return link.two() != null ? A_BOTH_B : A_SINGLE_B;
+        }
+    }
+}