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1   /*
2    * Copyright 2007-2008 the original author or authors.
3    * 
4    * 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   */
16  
17  package org.gwe.persistence.model;
18  
19  import java.net.InetAddress;
20  import java.net.UnknownHostException;
21  
22  import javax.persistence.Entity;
23  import javax.persistence.Id;
24  
25  /**
26   * @author Marco Ruiz
27   * @since Aug 8, 2007
28   */
29  @Entity
30  public class ComputeResourceInfo extends BaseModelInfo<String> {
31  
32  	public static ComputeResourceInfo createLocalInfo(int allocationId) {
33  		String hostAddress = "UNKNOWN-FOR-ALLOCATION-ID-" + allocationId;
34  		String hostName    = hostAddress;
35  		try {
36  			InetAddress localhost = InetAddress.getLocalHost();
37  			hostAddress = localhost.getHostAddress();
38  			hostName    = localhost.getHostName();
39  		} catch (UnknownHostException e) {
40  		}
41  		
42  		return new ComputeResourceInfo(
43  				hostAddress,
44  				hostName,
45  				System.getProperty("java.version"),
46  				Runtime.getRuntime().availableProcessors(),
47  				System.getProperty("os.arch"),
48  				System.getProperty("os.name"),
49  				System.getProperty("os.version")
50  		);
51  	}
52  	
53  	@Id
54  	private String hostAddress;
55  	private String hostName;
56  	
57  	private String javaVersion;
58  	private String osName;
59  	private String osVersion; 
60  	private int osProcessors; 
61  	private String osArch;
62  	
63  	public ComputeResourceInfo(String hostAddress, String hostName, String javaVersion, int osProcessors, String osArch, String osName, String osVersion) {
64  		this.hostAddress = hostAddress;
65  		this.hostName = hostName;
66  		this.javaVersion = javaVersion;
67  		this.osProcessors = osProcessors;
68  		this.osArch = osArch;
69  		this.osName = osName;
70  		this.osVersion = osVersion;
71  	}
72  
73  	public ComputeResourceInfo() {}
74  
75  	public String getId() 			{ return hostAddress; }
76  	public String getHostAddress() 	{ return hostAddress; }
77  	public String getHostName() 	{ return hostName; }
78  	public String getJavaVersion() 	{ return javaVersion; }
79  	public int getOsProcessors() 	{ return osProcessors; }
80  	public String getOsArch() 		{ return osArch; }
81  	public String getOsName() 		{ return osName; }
82  	public String getOsVersion() 	{ return osVersion; }
83  
84  	@Override
85      public int hashCode() {
86  	    final int prime = 31;
87  	    int result = 1;
88  	    result = prime * result + ((hostAddress == null) ? 0 : hostAddress.hashCode());
89  	    return result;
90      }
91  
92  	@Override
93      public boolean equals(Object obj) {
94  	    if (this == obj)
95  		    return true;
96  	    if (obj == null)
97  		    return false;
98  	    if (getClass() != obj.getClass())
99  		    return false;
100 	    ComputeResourceInfo other = (ComputeResourceInfo) obj;
101 	    if (hostAddress == null) {
102 		    if (other.hostAddress != null)
103 			    return false;
104 	    } else if (!hostAddress.equals(other.hostAddress))
105 		    return false;
106 	    return true;
107     }
108 }