org.apache.hadoop.hbase.net.Address.java Source code

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Here is the source code for org.apache.hadoop.hbase.net.Address.java

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/**
 * 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.hadoop.hbase.net;

import org.apache.commons.lang3.StringUtils;
import org.apache.yetus.audience.InterfaceAudience;

import org.apache.hbase.thirdparty.com.google.common.net.HostAndPort;

/**
 * An immutable type to hold a hostname and port combo, like an Endpoint
 * or java.net.InetSocketAddress (but without danger of our calling
 * resolve -- we do NOT want a resolve happening every time we want
 * to hold a hostname and port combo). This class is also {@link Comparable}
 * <p>In implementation this class is a facade over Guava's {@link HostAndPort}.
 * We cannot have Guava classes in our API hence this Type.
 */
@InterfaceAudience.Public
public class Address implements Comparable<Address> {
    private HostAndPort hostAndPort;

    private Address(HostAndPort hostAndPort) {
        this.hostAndPort = hostAndPort;
    }

    public static Address fromParts(String hostname, int port) {
        return new Address(HostAndPort.fromParts(hostname, port));
    }

    public static Address fromString(String hostnameAndPort) {
        return new Address(HostAndPort.fromString(hostnameAndPort));
    }

    public String getHostname() {
        return this.hostAndPort.getHost();
    }

    public int getPort() {
        return this.hostAndPort.getPort();
    }

    @Override
    public String toString() {
        return this.hostAndPort.toString();
    }

    /**
     * If hostname is a.b.c and the port is 123, return a:123 instead of a.b.c:123.
     * @return if host looks like it is resolved -- not an IP -- then strip the domain portion
     * otherwise returns same as {@link #toString()}}
     */
    public String toStringWithoutDomain() {
        String hostname = getHostname();
        String[] parts = hostname.split("\\.");
        if (parts.length > 1) {
            for (String part : parts) {
                if (!StringUtils.isNumeric(part)) {
                    return Address.fromParts(parts[0], getPort()).toString();
                }
            }
        }
        return toString();
    }

    @Override
    // Don't use HostAndPort equals... It is wonky including
    // ipv6 brackets
    public boolean equals(Object other) {
        if (this == other) {
            return true;
        }
        if (other instanceof Address) {
            Address that = (Address) other;
            return this.getHostname().equals(that.getHostname()) && this.getPort() == that.getPort();
        }
        return false;
    }

    @Override
    public int hashCode() {
        return this.getHostname().hashCode() ^ getPort();
    }

    @Override
    public int compareTo(Address that) {
        int compare = this.getHostname().compareTo(that.getHostname());
        if (compare != 0)
            return compare;
        return this.getPort() - that.getPort();
    }
}