/** Tests scanning for multiple prefixes. */ public void testScanPrefixMultiple() throws StorageException { List<String> keys = Arrays.asList( "/root/foo", "/root/bar", "/root/baz", "/some/other/file", "/a/different/file"); for (String s : keys) { store.put(StringUtils.stringToBytes(s), new byte[] {}); } // well-known prefix store.scan(Arrays.asList(StringUtils.stringToBytes("/roo")), callback); checkSubsetAndClear(3, keys, callback.keys); // overlapping prefix store.scan( Arrays.asList(StringUtils.stringToBytes("/roo"), StringUtils.stringToBytes("/root/f")), callback); checkSubsetAndClear(3, keys, callback.keys); // no prefixes store.scan(new ArrayList<byte[]>(), callback); checkSubsetAndClear(0, keys, callback.keys); // multiple store.scan( Arrays.asList(StringUtils.stringToBytes("/roo"), StringUtils.stringToBytes("/a/di")), callback); checkSubsetAndClear(4, keys, callback.keys); }
/** Tests the corner case in prefix scanning interface. */ public void testScanPrefixCornerCase() throws StorageException { byte[] prefix = {17, 18, 19, (byte) 0xff}; store.put(prefix, prefix); CollectingCallBack callback = new CollectingCallBack(); store.scan(prefix, callback); assertEquals(1, callback.keys.size()); }
/** Tests the prefix scanning interface. */ public void testScanPrefix() throws StorageException { List<String> keys = Arrays.asList("/root/foo", "/root/bar", "/root/baz", "/some/other/file"); for (String s : keys) { store.put(StringUtils.stringToBytes(s), new byte[] {}); } // well-known prefix store.scan(StringUtils.stringToBytes("/roo"), callback); checkSubsetAndClear(3, keys, callback.keys); // invalid prefix store.scan(StringUtils.stringToBytes("inv"), callback); checkSubsetAndClear(0, keys, callback.keys); // empty prefix store.scan(new byte[] {}, callback); checkSubsetAndClear(keys.size(), keys, callback.keys); }
/** Tests the range scanning interface. */ public void testScanRange() throws StorageException { // space makes first key appear before others List<String> keys = Arrays.asList(StringUtils.SPACE + "first", "aab", "aac", "abc", "aaa", "aaaa"); for (String s : keys) { store.put(StringUtils.stringToBytes(s), new byte[] {}); } store.scan(StringUtils.stringToBytes("aaa"), StringUtils.stringToBytes("aaa"), callback); assertEquals(0, callback.keys.size()); callback.keys.clear(); store.scan(StringUtils.stringToBytes("aaa"), StringUtils.stringToBytes("aaab"), callback); assertEquals( new HashSet<String>(Arrays.asList("aaa", "aaaa")), new HashSet<String>(callback.keys)); callback.keys.clear(); store.scan(StringUtils.stringToBytes("aabq"), null, callback); assertEquals( new HashSet<String>(Arrays.asList("aac", "abc")), new HashSet<String>(callback.keys)); }
/** Test for multi-get and set. */ public void testSetGetMultiple() throws StorageException { PairList<byte[], byte[]> entries = new PairList<byte[], byte[]>(); entries.add(new byte[] {1}, new byte[] {1}); entries.add(new byte[] {2}, new byte[] {2}); store.put(entries); List<byte[]> values = store.get(Arrays.asList(new byte[] {1}, new byte[] {3}, new byte[] {2})); assertEquals(3, values.size()); assertTrue(Arrays.equals(new byte[] {1}, values.get(0))); assertNull(values.get(1)); assertTrue(Arrays.equals(new byte[] {2}, values.get(2))); store.remove(entries.extractFirstList()); store.scan(new byte[] {}, callback); assertEquals(0, callback.keys.size()); }