aboutsummaryrefslogtreecommitdiffstats
path: root/src/java/jogamp/common/os/AndroidUtils.java
blob: c6d581965ae807587377d9202a099069ec3e113f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
/**
 * Copyright 2012 JogAmp Community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list
 *       of conditions and the following disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of JogAmp Community.
 */
package jogamp.common.os;

import java.io.File;
import java.lang.reflect.Method;

import com.jogamp.common.os.AndroidVersion;
import com.jogamp.common.util.ReflectionUtil;

public class AndroidUtils {

    private static final Method androidGetPackageInfoVersionNameMethod;
    private static final Method androidGetPackageInfoVersionCodeMethod;
    private static final Method androidGetTempRootMethod;
    
    static {
        if(AndroidVersion.isAvailable) {
            final ClassLoader cl = AndroidUtils.class.getClassLoader();
            final Class<?> androidAndroidUtilsImplClz = ReflectionUtil.getClass("jogamp.common.os.android.AndroidUtilsImpl", true, cl);
            androidGetPackageInfoVersionCodeMethod = ReflectionUtil.getMethod(androidAndroidUtilsImplClz, "getPackageInfoVersionCode", String.class);
            androidGetPackageInfoVersionNameMethod = ReflectionUtil.getMethod(androidAndroidUtilsImplClz, "getPackageInfoVersionName", String.class);
            androidGetTempRootMethod = ReflectionUtil.getMethod(androidAndroidUtilsImplClz, "getTempRoot");
        } else {
            androidGetPackageInfoVersionCodeMethod = null;
            androidGetPackageInfoVersionNameMethod = null;
            androidGetTempRootMethod = null;
        }
    }
    
    /**
     * @return null if platform is not Android or no Android Context is registered 
     *         via {@link jogamp.common.os.android.StaticContext#init(android.content.Context) StaticContext.init(..)}, 
     *         otherwise the found package version code of <code>packageName</code> is returned.
     */
    public static final int getPackageInfoVersionCode(String packageName) {
        if(null != androidGetPackageInfoVersionCodeMethod) {
            return ((Integer) ReflectionUtil.callMethod(null, androidGetPackageInfoVersionCodeMethod, packageName)).intValue();
        }
        return -1;
    }
    
    /**
     * @return null if platform is not Android or no Android Context is registered 
     *         via {@link jogamp.common.os.android.StaticContext#init(android.content.Context) StaticContext.init(..)}, 
     *         otherwise the found package version name of <code>packageName</code> is returned.
     */
    public static final String getPackageInfoVersionName(String packageName) {
        if(null != androidGetPackageInfoVersionNameMethod) {
            return (String) ReflectionUtil.callMethod(null, androidGetPackageInfoVersionNameMethod, packageName);
        }
        return null;
    }
    
    /**
     * @return null if platform is not Android or no Android Context is registered 
     *         via {@link jogamp.common.os.android.StaticContext#init(android.content.Context) StaticContext.init(..)}, 
     *         otherwise the context relative world readable <code>temp</code> directory returned. 
     */
    public static File getTempRoot()
        throws RuntimeException {
        if(null != androidGetTempRootMethod) {
            return (File) ReflectionUtil.callMethod(null, androidGetTempRootMethod);
        }
        return null;       
    }    
        
}