react-native-http-cache/android/src/main/java/cn/reactnative/httpcache/HttpCacheModule.java at 618e629ef3c8e9899cd8e524e743cd2a2a478b3f · reactnativecn/react-native-http-cache · GitHub

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
94
95
96
97
98
99
100
101
102
103
104
package cn.reactnative.httpcache;

import android.content.Intent;

import com.facebook.cache.disk.DiskStorageCache;
import com.facebook.cache.disk.FileCache;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.imagepipeline.core.ImagePipelineFactory;
import com.facebook.react.bridge.Callback;
import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.modules.network.OkHttpClientProvider;
import okhttp3.Cache;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;

/**
 * Created by tdzl2_000 on 2015-10-10.
 */
public class HttpCacheModule extends ReactContextBaseJavaModule {
    public HttpCacheModule(ReactApplicationContext context) {
        super(context);
    }

    @Override
    public String getName() {
        return "RCTHttpCache";
    }

    @ReactMethod
    public void clearCache(Promise promise){
        try {
            Cache cache = OkHttpClientProvider.getOkHttpClient().cache();
            if (cache != null) {
                cache.delete();
            }
            promise.resolve(null);
        } catch(IOException e){
            promise.reject(e);
        }
    }

    @ReactMethod
    public void getHttpCacheSize(Promise promise){
        try {
            Cache cache = OkHttpClientProvider.getOkHttpClient().cache();
            promise.resolve(cache != null ? ((double)cache.size()) : 0);
        } catch(IOException e){
            promise.reject(e);
        }
    }

    static Method update;
    private void updateCacheSize(DiskStorageCache cache) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
        if (update == null){
            update = DiskStorageCache.class.getDeclaredMethod("maybeUpdateFileCacheSize");
            update.setAccessible(true);
        }
        update.invoke(cache);
    }

    @ReactMethod
    public void getImageCacheSize(Promise promise){
        //FileCache cache1 = ImagePipelineFactory.getInstance().getMainDiskStorageCache();
        FileCache cache1 = ImagePipelineFactory.getInstance().getMainFileCache();  // fixed  RN-0.43+
        long size1 = cache1.getSize();
        if (size1 < 0){
            try {
                updateCacheSize((DiskStorageCache)cache1);
            } catch (Exception e){
                promise.reject(e);
                return;
            }
            size1 = cache1.getSize();
        }
        //FileCache cache2 = ImagePipelineFactory.getInstance().getSmallImageDiskStorageCache();
        FileCache cache2 = ImagePipelineFactory.getInstance().getSmallImageFileCache();  //fixed RN-0.43+
        long size2 = cache2.getSize();
        if (size2 < 0){
            try {
                updateCacheSize((DiskStorageCache)cache2);
            } catch (Exception e){
                promise.reject(e);
                return;
            }
            size2 = cache2.getSize();
        }
        promise.resolve(((double)(size1+size2)));
    }

    @ReactMethod
    public void clearImageCache(Promise promise){
        FileCache cache1 = ImagePipelineFactory.getInstance().getMainFileCache();
        cache1.clearAll();
        FileCache cache2 = ImagePipelineFactory.getInstance().getSmallImageFileCache();
        cache2.clearAll();
        promise.resolve(null);
    }
}