1/**
2 * Copyright 2013 Florian Schmaus
3 *
4 * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.jivesoftware.smack.util.dns;
17
18public class HostAddress {
19    private String fqdn;
20    private int port;
21    private Exception exception;
22
23    /**
24     * Creates a new HostAddress with the given FQDN. The port will be set to the default XMPP client port: 5222
25     *
26     * @param fqdn Fully qualified domain name.
27     * @throws IllegalArgumentException If the fqdn is null.
28     */
29    public HostAddress(String fqdn) {
30        if (fqdn == null)
31            throw new IllegalArgumentException("FQDN is null");
32        if (fqdn.charAt(fqdn.length() - 1) == '.') {
33            this.fqdn = fqdn.substring(0, fqdn.length() - 1);
34        }
35        else {
36            this.fqdn = fqdn;
37        }
38        // Set port to the default port for XMPP client communication
39        this.port = 5222;
40    }
41
42    /**
43     * Creates a new HostAddress with the given FQDN. The port will be set to the default XMPP client port: 5222
44     *
45     * @param fqdn Fully qualified domain name.
46     * @param port The port to connect on.
47     * @throws IllegalArgumentException If the fqdn is null or port is out of valid range (0 - 65535).
48     */
49    public HostAddress(String fqdn, int port) {
50        this(fqdn);
51        if (port < 0 || port > 65535)
52            throw new IllegalArgumentException(
53                    "DNS SRV records weight must be a 16-bit unsiged integer (i.e. between 0-65535. Port was: " + port);
54
55        this.port = port;
56    }
57
58    public String getFQDN() {
59        return fqdn;
60    }
61
62    public int getPort() {
63        return port;
64    }
65
66    public void setException(Exception e) {
67        this.exception = e;
68    }
69
70    @Override
71    public String toString() {
72        return fqdn + ":" + port;
73    }
74
75    @Override
76    public boolean equals(Object o) {
77        if (this == o) {
78            return true;
79        }
80        if (!(o instanceof HostAddress)) {
81            return false;
82        }
83
84        final HostAddress address = (HostAddress) o;
85
86        if (!fqdn.equals(address.fqdn)) {
87            return false;
88        }
89        return port == address.port;
90    }
91
92    @Override
93    public int hashCode() {
94        int result = 1;
95        result = 37 * result + fqdn.hashCode();
96        return result * 37 + port;
97    }
98
99    public String getErrorMessage() {
100        String error;
101        if (exception == null) {
102            error = "No error logged";
103        }
104        else {
105            error = exception.getMessage();
106        }
107        return toString() + " Exception: " + error;
108    }
109}
110