platformtools/applicationinvoker/Java.java

package net.oni2.platformtools.applicationinvoker;

import java.io.File;

import net.oni2.platformtools.PlatformInformation;
import net.oni2.platformtools.PlatformInformation.Platform;

/**
 * @author Christian Illy
 */
public class Java {
        private static int isFound = -1;
        private static File jre = null;

        /**
         * @return Was a JRE found
         */
        public static boolean isInstalled() {
                if (isFound < 0) {
                        getRuntimeExe();
                }
                return isFound == 1;
        }

        /**
         * @return The JRE executable
         */
        public static File getRuntimeExe() {
                if (isFound < 0) {
                        File jrehome = new File(System.getProperties().getProperty(
                                        "java.home"), "bin");
                        if (PlatformInformation.getPlatform() == Platform.WIN)
                                jre = new File(jrehome, "javaw.exe");
                        else
                                jre = new File(jrehome, "java");
                        if (!jre.exists()) {
                                isFound = 0;
                                jre = null;
                        } else {
                                isFound = 1;
                        }
                }
                return jre;
        }
}
Revision:	724
Committed:	Thu Mar 21 11:43:42 2013 UTC (12 years, 7 months ago) by alloc
Content type:	text/x-java
File size:	906 byte(s)
Log Message:	Platform tools library (information about platform, program execution)
#	Content
1	package net.oni2.platformtools.applicationinvoker;
2
3	import java.io.File;
4
5	import net.oni2.platformtools.PlatformInformation;
6	import net.oni2.platformtools.PlatformInformation.Platform;
7
8	/**
9	* @author Christian Illy
10	*/
11	public class Java {
12	private static int isFound = -1;
13	private static File jre = null;
14
15	/**
16	* @return Was a JRE found
17	*/
18	public static boolean isInstalled() {
19	if (isFound < 0) {
20	getRuntimeExe();
21	}
22	return isFound == 1;
23	}
24
25	/**
26	* @return The JRE executable
27	*/
28	public static File getRuntimeExe() {
29	if (isFound < 0) {
30	File jrehome = new File(System.getProperties().getProperty(
31	"java.home"), "bin");
32	if (PlatformInformation.getPlatform() == Platform.WIN)
33	jre = new File(jrehome, "javaw.exe");
34	else
35	jre = new File(jrehome, "java");
36	if (!jre.exists()) {
37	isFound = 0;
38	jre = null;
39	} else {
40	isFound = 1;
41	}
42	}
43	return jre;
44	}
45	}