andi/perfdb
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insert values into root node

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This commit is contained in:
Andreas Huber
2018-10-14 19:53:02 +02:00
parent 3855d03ead
commit bb4514c940
2 changed files with 15 additions and 9 deletions
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10
block-storage/src/main/java/org/lucares/pdb/map/PersistentMap.java
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@@ -35,8 +35,9 @@ public class PersistentMap {
}
}
public void put(final String key, final long value) throws IOException {
put(key.getBytes(UTF8), VariableByteEncoder.encode(value));
public Long put(final String key, final long value) throws IOException {
final byte[] oldValue = put(key.getBytes(UTF8), VariableByteEncoder.encode(value));
return oldValue == null ? null : VariableByteEncoder.decodeFirstValue(oldValue);
}
public long getAsLong(final String key) throws IOException {
@@ -44,8 +45,9 @@ public class PersistentMap {
return buffer == null ? null : VariableByteEncoder.decodeFirstValue(buffer);
}
public void put(final String key, final String value) throws IOException {
put(key.getBytes(UTF8), value.getBytes(UTF8));
public String put(final String key, final String value) throws IOException {
final byte[] oldValue = put(key.getBytes(UTF8), value.getBytes(UTF8));
return oldValue == null ? null : new String(oldValue, UTF8);
}
public String getAsString(final String key) throws IOException {

14
block-storage/src/test/java/org/lucares/pdb/map/PersistentMapTest.java
View File

@@ -26,17 +26,21 @@ public class PersistentMapTest {
FileUtils.delete(dataDirectory);
}
public void test() throws Exception {
public void testSingleValue() throws Exception {
final Path file = dataDirectory.resolve("map.db");
try (final DiskStorage ds = new DiskStorage(file)) {
final PersistentMap map = new PersistentMap(ds);
final String value1 = "value1";
map.put("key1", value1);
final String actualValue1 = map.getAsString("key1");
final String value = "value1";
final String key = "key1";
Assert.assertEquals(actualValue1, value1);
Assert.assertNull(map.getAsString(key));
Assert.assertNull(map.put(key, value));
final String actualValue = map.getAsString(key);
Assert.assertEquals(actualValue, value);
}
}
}