ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60

Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd

1 files changed, 164 insertions, 0 deletions

diff --git a/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java b/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
new file mode 100644
index 00000000..02179115
--- /dev/null
+++ b/framework/src/onos/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
@@ -0,0 +1,164 @@
+/*
+ * 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.base.Strings;
+import com.google.common.collect.ImmutableSet;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.flow.FlowEntry;
+import org.onosproject.net.flow.FlowRuleService;
+import org.onosproject.net.flow.criteria.Criterion;
+import org.onosproject.net.flow.instructions.Instruction;
+import org.onosproject.ui.RequestHandler;
+import org.onosproject.ui.UiMessageHandler;
+import org.onosproject.ui.table.CellFormatter;
+import org.onosproject.ui.table.TableModel;
+import org.onosproject.ui.table.TableRequestHandler;
+import org.onosproject.ui.table.cell.EnumFormatter;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Message handler for flow view related messages.
+ */
+public class FlowViewMessageHandler extends UiMessageHandler {
+
+    private static final String FLOW_DATA_REQ = "flowDataRequest";
+    private static final String FLOW_DATA_RESP = "flowDataResponse";
+    private static final String FLOWS = "flows";
+
+    private static final String ID = "id";
+    private static final String APP_ID = "appId";
+    private static final String GROUP_ID = "groupId";
+    private static final String TABLE_ID = "tableId";
+    private static final String PRIORITY = "priority";
+    private static final String SELECTOR = "selector";
+    private static final String TREATMENT = "treatment";
+    private static final String TIMEOUT = "timeout";
+    private static final String PERMANENT = "permanent";
+    private static final String STATE = "state";
+    private static final String PACKETS = "packets";
+    private static final String BYTES = "bytes";
+
+    private static final String COMMA = ", ";
+
+    private static final String[] COL_IDS = {
+            ID, APP_ID, GROUP_ID, TABLE_ID, PRIORITY, SELECTOR,
+            TREATMENT, TIMEOUT, PERMANENT, STATE, PACKETS, BYTES
+    };
+
+    @Override
+    protected Collection<RequestHandler> createRequestHandlers() {
+        return ImmutableSet.of(new FlowDataRequest());
+    }
+
+    // handler for flow table requests
+    private final class FlowDataRequest extends TableRequestHandler {
+
+        private FlowDataRequest() {
+            super(FLOW_DATA_REQ, FLOW_DATA_RESP, FLOWS);
+        }
+
+        @Override
+        protected String[] getColumnIds() {
+            return COL_IDS;
+        }
+
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setFormatter(SELECTOR, new SelectorFormatter());
+            tm.setFormatter(TREATMENT, new TreatmentFormatter());
+            tm.setFormatter(STATE, EnumFormatter.INSTANCE);
+            return tm;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            String uri = string(payload, "devId");
+            if (!Strings.isNullOrEmpty(uri)) {
+                DeviceId deviceId = DeviceId.deviceId(uri);
+                FlowRuleService frs = get(FlowRuleService.class);
+                for (FlowEntry flow : frs.getFlowEntries(deviceId)) {
+                    populateRow(tm.addRow(), flow);
+                }
+            }
+        }
+
+        private void populateRow(TableModel.Row row, FlowEntry flow) {
+            row.cell(ID, flow.id().value())
+                .cell(APP_ID, flow.appId())
+                .cell(GROUP_ID, flow.groupId().id())
+                .cell(TABLE_ID, flow.tableId())
+                .cell(PRIORITY, flow.priority())
+                .cell(SELECTOR, flow)
+                .cell(TREATMENT, flow)
+                .cell(TIMEOUT, flow.timeout())
+                .cell(PERMANENT, flow.isPermanent())
+                .cell(STATE, flow.state())
+                .cell(PACKETS, flow.packets())
+                .cell(BYTES, flow.bytes());
+        }
+
+        private final class SelectorFormatter implements CellFormatter {
+            @Override
+            public String format(Object value) {
+                FlowEntry flow = (FlowEntry) value;
+                Set<Criterion> criteria = flow.selector().criteria();
+
+                if (criteria.isEmpty()) {
+                    return "(No traffic selector criteria for this flow)";
+                }
+                StringBuilder sb = new StringBuilder("Criteria: ");
+                for (Criterion c : criteria) {
+                    sb.append(c).append(COMMA);
+                }
+                removeTrailingComma(sb);
+
+                return sb.toString();
+            }
+        }
+
+        private final class TreatmentFormatter implements CellFormatter {
+            @Override
+            public String format(Object value) {
+                FlowEntry flow = (FlowEntry) value;
+                List<Instruction> instructions = flow.treatment().allInstructions();
+
+                if (instructions.isEmpty()) {
+                    return "(No traffic treatment instructions for this flow)";
+                }
+                StringBuilder sb = new StringBuilder("Treatment Instructions: ");
+                for (Instruction i : instructions) {
+                    sb.append(i).append(COMMA);
+                }
+                removeTrailingComma(sb);
+
+                return sb.toString();
+            }
+        }
+
+        private StringBuilder removeTrailingComma(StringBuilder sb) {
+            int pos = sb.lastIndexOf(COMMA);
+            sb.delete(pos, sb.length());
+            return sb;
+        }
+    }
+}