-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcoverage.html
More file actions
348 lines (295 loc) · 11.2 KB
/
coverage.html
File metadata and controls
348 lines (295 loc) · 11.2 KB
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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>storage: Go Coverage Report</title>
<style>
body {
background: black;
color: rgb(80, 80, 80);
}
body, pre, #legend span {
font-family: Menlo, monospace;
font-weight: bold;
}
#topbar {
background: black;
position: fixed;
top: 0; left: 0; right: 0;
height: 42px;
border-bottom: 1px solid rgb(80, 80, 80);
}
#content {
margin-top: 50px;
}
#nav, #legend {
float: left;
margin-left: 10px;
}
#legend {
margin-top: 12px;
}
#nav {
margin-top: 10px;
}
#legend span {
margin: 0 5px;
}
.cov0 { color: rgb(192, 0, 0) }
.cov1 { color: rgb(128, 128, 128) }
.cov2 { color: rgb(116, 140, 131) }
.cov3 { color: rgb(104, 152, 134) }
.cov4 { color: rgb(92, 164, 137) }
.cov5 { color: rgb(80, 176, 140) }
.cov6 { color: rgb(68, 188, 143) }
.cov7 { color: rgb(56, 200, 146) }
.cov8 { color: rgb(44, 212, 149) }
.cov9 { color: rgb(32, 224, 152) }
.cov10 { color: rgb(20, 236, 155) }
</style>
</head>
<body>
<div id="topbar">
<div id="nav">
<select id="files">
<option value="file0">tiny-url-service/storage/memory.go (100.0%)</option>
<option value="file1">tiny-url-service/storage/redis.go (73.6%)</option>
</select>
</div>
<div id="legend">
<span>not tracked</span>
<span class="cov0">not covered</span>
<span class="cov8">covered</span>
</div>
</div>
<div id="content">
<pre class="file" id="file0" style="display: none">package storage
import (
"fmt"
"sync"
"sync/atomic"
"time"
"tiny-url-service/models"
"tiny-url-service/utils"
)
// MemoryStorage implements the Storage interface using in-memory maps
type MemoryStorage struct {
mu sync.RWMutex // Protects the maps
urls map[string]*models.URLMapping // shortCode -> URLMapping
counter uint64 // Atomic counter for unique IDs
baseURL string // Base URL for generating short URLs
}
// NewMemoryStorage creates a new in-memory storage instance
func NewMemoryStorage(baseURL string) *MemoryStorage <span class="cov8" title="1">{
return &MemoryStorage{
urls: make(map[string]*models.URLMapping),
counter: 0,
baseURL: baseURL,
}
}</span>
// Store saves a URL mapping and returns the generated short code
func (m *MemoryStorage) Store(mapping *models.URLMapping) (string, error) <span class="cov8" title="1">{
// Generate unique ID
id := atomic.AddUint64(&m.counter, 1)
// Generate short code using base62 encoding
shortCode := utils.EncodeBase62(id)
// Complete the mapping
mapping.ID = id
mapping.ShortCode = shortCode
mapping.CreatedAt = time.Now()
// Store with write lock
m.mu.Lock()
m.urls[shortCode] = mapping
m.mu.Unlock()
return shortCode, nil
}</span>
// Get retrieves the URL mapping for a given short code
func (m *MemoryStorage) Get(shortCode string) (*models.URLMapping, error) <span class="cov8" title="1">{
m.mu.RLock()
mapping, exists := m.urls[shortCode]
m.mu.RUnlock()
if !exists </span><span class="cov8" title="1">{
return nil, fmt.Errorf("short code not found: %s", shortCode)
}</span>
// Check if expired
<span class="cov8" title="1">if m.IsExpired(mapping) </span><span class="cov8" title="1">{
return nil, fmt.Errorf("URL has expired: %s", shortCode)
}</span>
<span class="cov8" title="1">return mapping, nil</span>
}
// IsExpired checks if a URL mapping has expired
func (m *MemoryStorage) IsExpired(mapping *models.URLMapping) bool <span class="cov8" title="1">{
if mapping.ExpirationDate == nil </span><span class="cov8" title="1">{
return false // No expiration set
}</span>
<span class="cov8" title="1">return time.Now().After(*mapping.ExpirationDate)</span>
}
// GetStats returns storage statistics
func (m *MemoryStorage) GetStats() map[string]interface{} <span class="cov8" title="1">{
m.mu.RLock()
totalUrls := len(m.urls)
m.mu.RUnlock()
currentCounter := atomic.LoadUint64(&m.counter)
return map[string]interface{}{
"total_urls": totalUrls,
"current_counter": currentCounter,
"storage_type": "memory",
}
}</span> </pre>
<pre class="file" id="file1" style="display: none">package storage
import (
"context"
"encoding/json"
"fmt"
"sync/atomic"
"time"
"tiny-url-service/models"
"tiny-url-service/utils"
"github.com/redis/go-redis/v9"
)
type RedisStorage struct {
client *redis.Client
baseURL string
ctx context.Context
counter uint64 // Local counter, synced with Redis
}
func NewRedisStorage(baseURL, redisURL string) (*RedisStorage, error) <span class="cov8" title="1">{
opts, err := redis.ParseURL(redisURL)
if err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("failed to parse Redis URL: %w", err)
}</span>
<span class="cov8" title="1">client := redis.NewClient(opts)
ctx := context.Background()
// Test connection
if err := client.Ping(ctx).Err(); err != nil </span><span class="cov8" title="1">{
return nil, fmt.Errorf("failed to connect to Redis: %w", err)
}</span>
<span class="cov8" title="1">storage := &RedisStorage{
client: client,
baseURL: baseURL,
ctx: ctx,
}
// Initialize counter from Redis
if err := storage.initCounter(); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("failed to initialize counter: %w", err)
}</span>
<span class="cov8" title="1">return storage, nil</span>
}
func (r *RedisStorage) initCounter() error <span class="cov8" title="1">{
// Get current counter value from Redis, or start at 0
val, err := r.client.Get(r.ctx, "counter").Uint64()
if err == redis.Nil </span><span class="cov8" title="1">{
// Counter doesn't exist, start at 0
atomic.StoreUint64(&r.counter, 0)
return nil
}</span>
<span class="cov0" title="0">if err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">atomic.StoreUint64(&r.counter, val)
return nil</span>
}
// Store saves a URL mapping and returns the generated short code
func (r *RedisStorage) Store(mapping *models.URLMapping) (string, error) <span class="cov8" title="1">{
// Generate unique ID using Redis INCR for atomicity across instances
id, err := r.client.Incr(r.ctx, "counter").Result()
if err != nil </span><span class="cov0" title="0">{
return "", fmt.Errorf("failed to generate ID: %w", err)
}</span>
// Generate short code using base62 encoding
<span class="cov8" title="1">shortCode := utils.EncodeBase62(uint64(id))
// Complete the mapping
mapping.ID = uint64(id)
mapping.ShortCode = shortCode
mapping.CreatedAt = time.Now()
// Serialize mapping to JSON
data, err := json.Marshal(mapping)
if err != nil </span><span class="cov0" title="0">{
return "", fmt.Errorf("failed to marshal URL mapping: %w", err)
}</span>
// Store in Redis
<span class="cov8" title="1">if err := r.client.Set(r.ctx, "url:"+shortCode, data, 0).Err(); err != nil </span><span class="cov0" title="0">{
return "", fmt.Errorf("failed to store URL mapping in Redis: %w", err)
}</span>
// Update local counter
<span class="cov8" title="1">atomic.StoreUint64(&r.counter, uint64(id))
return shortCode, nil</span>
}
// Get retrieves the URL mapping for a given short code
func (r *RedisStorage) Get(shortCode string) (*models.URLMapping, error) <span class="cov8" title="1">{
data, err := r.client.Get(r.ctx, "url:"+shortCode).Result()
if err == redis.Nil </span><span class="cov8" title="1">{
return nil, fmt.Errorf("short code not found: %s", shortCode)
}</span>
<span class="cov8" title="1">if err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("failed to get URL mapping from Redis: %w", err)
}</span>
<span class="cov8" title="1">var mapping models.URLMapping
if err := json.Unmarshal([]byte(data), &mapping); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("failed to unmarshal URL mapping: %w", err)
}</span>
// Check if expired
<span class="cov8" title="1">if r.IsExpired(&mapping) </span><span class="cov0" title="0">{
return nil, fmt.Errorf("URL has expired: %s", shortCode)
}</span>
<span class="cov8" title="1">return &mapping, nil</span>
}
// IsExpired checks if a URL mapping has expired
func (r *RedisStorage) IsExpired(mapping *models.URLMapping) bool <span class="cov8" title="1">{
if mapping.ExpirationDate == nil </span><span class="cov8" title="1">{
return false // No expiration set
}</span>
<span class="cov8" title="1">return time.Now().After(*mapping.ExpirationDate)</span>
}
// GetStats returns storage statistics
func (r *RedisStorage) GetStats() map[string]interface{} <span class="cov8" title="1">{
// Get current counter
currentCounter := atomic.LoadUint64(&r.counter)
// Count total URLs (this is expensive for large datasets)
totalUrls, err := r.client.Eval(r.ctx, `
local keys = redis.call('KEYS', 'url:*')
return #keys
`, []string{}).Result()
if err != nil </span><span class="cov0" title="0">{
totalUrls = 0
}</span>
<span class="cov8" title="1">return map[string]interface{}{
"total_urls": totalUrls,
"current_counter": currentCounter,
"storage_type": "redis",
}</span>
}
// Close closes the Redis connection
func (r *RedisStorage) Close() error <span class="cov0" title="0">{
return r.client.Close()
}</span> </pre>
</div>
</body>
<script>
(function() {
var files = document.getElementById('files');
var visible;
files.addEventListener('change', onChange, false);
function select(part) {
if (visible)
visible.style.display = 'none';
visible = document.getElementById(part);
if (!visible)
return;
files.value = part;
visible.style.display = 'block';
location.hash = part;
}
function onChange() {
select(files.value);
window.scrollTo(0, 0);
}
if (location.hash != "") {
select(location.hash.substr(1));
}
if (!visible) {
select("file0");
}
})();
</script>
</html>