kafka Resource 源码
kafka Resource 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/resource/Resource.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.apache.kafka.common.resource;
import org.apache.kafka.common.annotation.InterfaceStability;
import java.util.Objects;
/**
* Represents a cluster resource with a tuple of (type, name).
*
* The API for this class is still evolving and we may break compatibility in minor releases, if necessary.
*/
@InterfaceStability.Evolving
public class Resource {
private final ResourceType resourceType;
private final String name;
/**
* The name of the CLUSTER resource.
*/
public final static String CLUSTER_NAME = "kafka-cluster";
/**
* A resource representing the whole cluster.
*/
public final static Resource CLUSTER = new Resource(ResourceType.CLUSTER, CLUSTER_NAME);
/**
* Create an instance of this class with the provided parameters.
*
* @param resourceType non-null resource type
* @param name non-null resource name
*/
public Resource(ResourceType resourceType, String name) {
Objects.requireNonNull(resourceType);
this.resourceType = resourceType;
Objects.requireNonNull(name);
this.name = name;
}
/**
* Return the resource type.
*/
public ResourceType resourceType() {
return resourceType;
}
/**
* Return the resource name.
*/
public String name() {
return name;
}
@Override
public String toString() {
return "(resourceType=" + resourceType + ", name=" + ((name == null) ? "<any>" : name) + ")";
}
/**
* Return true if this Resource has any UNKNOWN components.
*/
public boolean isUnknown() {
return resourceType.isUnknown();
}
@Override
public boolean equals(Object o) {
if (!(o instanceof Resource))
return false;
Resource other = (Resource) o;
return resourceType.equals(other.resourceType) && Objects.equals(name, other.name);
}
@Override
public int hashCode() {
return Objects.hash(resourceType, name);
}
}
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