blob: 7633c2a4b7f3d5e2f978ce303ef1a0adbd595e8f [file] [log] [blame]
/*
* Copyright 2017-present 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.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.name())
.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;
}
}
}
}