org.apache.pulsar.common.protocol.CommandUtils Maven / Gradle / Ivy
/*
* 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.apache.pulsar.common.protocol;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.pulsar.common.api.proto.CommandProducer;
import org.apache.pulsar.common.api.proto.CommandSubscribe;
import org.apache.pulsar.common.api.proto.KeyValue;
/**
* Helper class to work with commands.
*/
public final class CommandUtils {
private CommandUtils() {}
public static Map metadataFromCommand(CommandProducer commandProducer) {
return toMap(commandProducer.getMetadatasList());
}
public static Map metadataFromCommand(CommandSubscribe commandSubscribe) {
return toMap(commandSubscribe.getMetadatasList());
}
private static Map toMap(List keyValues) {
if (keyValues == null || keyValues.isEmpty()) {
return Collections.emptyMap();
}
return keyValues.stream()
.collect(Collectors.toMap(KeyValue::getKey, KeyValue::getValue));
}
}