| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * 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.store.primitives.PartitionAdminService; |
| import org.onosproject.store.service.PartitionInfo; |
| 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 java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * Message handler for partition view related messages. |
| */ |
| public class PartitionViewMessageHandler extends UiMessageHandler { |
| private static final String PARTITION_DATA_REQ = "partitionDataRequest"; |
| private static final String PARTITION_DATA_RESP = "partitionDataResponse"; |
| private static final String PARTITIONS = "partitions"; |
| |
| private static final String NAME = "name"; |
| private static final String TERM = "term"; |
| private static final String LEADER = "leader"; |
| private static final String MEMBERS = "members"; |
| |
| private static final String[] COL_IDS = {NAME, TERM, LEADER, MEMBERS}; |
| |
| @Override |
| protected Collection<RequestHandler> createRequestHandlers() { |
| return ImmutableSet.of(new PartitionDataHandler()); |
| } |
| |
| private final class PartitionDataHandler extends TableRequestHandler { |
| private static final String NO_ROWS_MESSAGE = "No partitions found"; |
| |
| private PartitionDataHandler() { |
| super(PARTITION_DATA_REQ, PARTITION_DATA_RESP, PARTITIONS); |
| } |
| |
| @Override |
| protected String[] getColumnIds() { |
| return COL_IDS; |
| } |
| |
| @Override |
| protected String noRowsMessage(ObjectNode payload) { |
| return NO_ROWS_MESSAGE; |
| } |
| |
| @Override |
| protected String defaultColumnId() { |
| return NAME; |
| } |
| |
| @Override |
| protected TableModel createTableModel() { |
| TableModel tm = super.createTableModel(); |
| tm.setFormatter(MEMBERS, new MembersFormatter()); |
| return tm; |
| } |
| |
| @Override |
| protected void populateTable(TableModel tm, ObjectNode payload) { |
| PartitionAdminService ps = get(PartitionAdminService.class); |
| for (PartitionInfo partition : ps.partitionInfo()) { |
| populateRow(tm.addRow(), partition); |
| } |
| } |
| |
| private void populateRow(TableModel.Row row, PartitionInfo p) { |
| row.cell(NAME, p.id()) |
| .cell(TERM, p.term()) |
| .cell(LEADER, p.leader()) |
| .cell(MEMBERS, p.members()); |
| } |
| |
| private final class MembersFormatter implements CellFormatter { |
| private static final String COMMA = ", "; |
| |
| @Override |
| public String format(Object value) { |
| List<String> members = (List<String>) value; |
| if (members.isEmpty()) { |
| return "(No members for this partition)"; |
| } |
| StringBuilder sb = new StringBuilder(); |
| for (String m : members) { |
| sb.append(m).append(COMMA); |
| } |
| removeTrailingComma(sb); |
| |
| return sb.toString(); |
| } |
| |
| private StringBuilder removeTrailingComma(StringBuilder sb) { |
| int pos = sb.lastIndexOf(COMMA); |
| sb.delete(pos, sb.length()); |
| return sb; |
| } |
| } |
| } |
| } |