cli/src/main/java/org/onlab/onos/cli/net/ConnectPointCompleter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.onlab.onos.cli.net;

import java.util.List;
import java.util.SortedSet;

import org.apache.karaf.shell.console.Completer;
import org.apache.karaf.shell.console.completer.StringsCompleter;
import org.onlab.onos.cli.AbstractShellCommand;
import org.onlab.onos.net.Device;
import org.onlab.onos.net.Port;
import org.onlab.onos.net.device.DeviceService;

/**
 * ConnectPoint completer.
 */
public class ConnectPointCompleter implements Completer {
    @Override
    public int complete(String buffer, int cursor, List<String> candidates) {
        // Delegate string completer
        StringsCompleter delegate = new StringsCompleter();

        // Fetch our service and feed it's offerings to the string completer
        DeviceService service = AbstractShellCommand.get(DeviceService.class);

        // Generate the device ID/port number identifiers
        for (Device device : service.getDevices()) {
            SortedSet<String> strings = delegate.getStrings();

            for (Port port : service.getPorts(device.id())) {
                strings.add(device.id().toString() + "/" + port.number());
            }
        }

        // Now let the completer do the work for figuring out what to offer.
        return delegate.complete(buffer, cursor, candidates);
    }

}