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/*
* 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.distributedprimitives.cli;
import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.commands.Option;
import org.onlab.util.KryoNamespace;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.store.serializers.KryoNamespaces;
import org.onosproject.store.service.Serializer;
import org.onosproject.store.service.StorageService;
import java.util.Arrays;
import java.util.Set;
/**
* CLI command to remove elements from a distributed set.
*/
@Command(scope = "onos", name = "set-test-remove",
description = "Remove from a distributed set")
public class SetTestRemoveCommand extends AbstractShellCommand {
@Option(name = "-r", aliases = "--retain",
description = "Only keep the given values in the set (if they already exist in the set)",
required = false, multiValued = false)
private boolean retain = false;
@Option(name = "-c", aliases = "--clear", description = "Clear the set of all values",
required = false, multiValued = false)
private boolean clear = false;
@Argument(index = 0, name = "setName",
description = "set name",
required = true, multiValued = false)
String setName = null;
@Argument(index = 1, name = "values",
description = "Value(s) to remove from the set",
required = false, multiValued = true)
String[] values = null;
Set<String> set;
Serializer serializer = Serializer.using(
new KryoNamespace.Builder().register(KryoNamespaces.BASIC).build());
@Override
protected void execute() {
StorageService storageService = get(StorageService.class);
set = storageService.<String>setBuilder()
.withName(setName)
.withSerializer(serializer)
.build();
if (clear) {
set.clear();
print("Set %s cleared", setName);
return;
}
if (values == null) {
print("Error executing command: No value given");
return;
}
if (retain) { // Keep only the given values
if (set.retainAll(Arrays.asList(values))) {
print("%s was pruned to contain only elements of set %s", setName, Arrays.asList(values));
} else {
print("%s was not changed by retaining only elements of the set %s", setName, Arrays.asList(values));
}
} else if (values.length == 1) {
// Remove a single element from the set
if (set.remove(values[0])) {
print("[%s] was removed from the set %s", values[0], setName);
} else {
print("[%s] was not in set %s", values[0], setName);
}
} else if (values.length > 1) {
// Remove multiple elements from a set
if (set.removeAll(Arrays.asList(values))) {
print("%s was removed from the set %s", Arrays.asList(values), setName);
} else {
print("No element of %s was in set %s", Arrays.asList(values), setName);
}
}
}
}
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