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Add deleteWord. 

bug: 6669677

Change-Id: I1a5b90ee05e5cffd74a5c140384a3e37c79e7e70
main
Yuichiro Hanada 2012-09-20 14:27:33 +09:00
parent 73779f7631
commit 66597f5e5f
3 changed files with 59 additions and 2 deletions
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22
java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
View File

@ -201,4 +201,26 @@ public class BinaryDictIOUtils {
}
return FormatSpec.NOT_VALID_WORD;
}
/**
* Delete the word from the binary file.
*
* @param buffer the buffer to write.
* @param word the word we delete
* @throws IOException
* @throws UnsupportedFormatException
*/
public static void deleteWord(final FusionDictionaryBufferInterface buffer,
final String word) throws IOException, UnsupportedFormatException {
buffer.position(0);
final FileHeader header = BinaryDictInputOutput.readHeader(buffer);
final int wordPosition = getTerminalPosition(buffer, word);
if (wordPosition == FormatSpec.NOT_VALID_WORD) return;
buffer.position(wordPosition);
final int flags = buffer.readUnsignedByte();
final int newFlags = flags ^ FormatSpec.FLAG_IS_TERMINAL;
buffer.position(wordPosition);
buffer.put((byte)newFlags);
}
}

2
java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
View File

@ -392,7 +392,7 @@ public class BinaryDictInputOutput {
/**
* Helper method to check whether the CharGroup has a parent address.
*/
private static boolean hasParentAddress(final FormatOptions options) {
public static boolean hasParentAddress(final FormatOptions options) {
return options.mVersion >= FormatSpec.FIRST_VERSION_WITH_PARENT_ADDRESS
&& options.mHasParentAddress;
}

37
tests/src/com/android/inputmethod/latin/makedict/BinaryDictIOTests.java
View File

@ -25,6 +25,7 @@ import com.android.inputmethod.latin.makedict.FusionDictionary.Node;
import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
import android.test.AndroidTestCase;
import android.test.MoreAsserts;
import android.util.Log;
import android.util.SparseArray;
@ -517,7 +518,7 @@ public class BinaryDictIOTests extends AndroidTestCase {
public void testGetTerminalPosition() {
File file = null;
try {
file = File.createTempFile("runReadUnigrams", ".dict");
file = File.createTempFile("testGetTerminalPosition", ".dict");
} catch (IOException e) {
// do nothing
}
@ -564,4 +565,38 @@ public class BinaryDictIOTests extends AndroidTestCase {
runGetTerminalPosition(buffer, word, i, false);
}
}
public void testDeleteWord() {
File file = null;
try {
file = File.createTempFile("testGetTerminalPosition", ".dict");
} catch (IOException e) {
// do nothing
}
assertNotNull(file);
final FusionDictionary dict = new FusionDictionary(new Node(),
new FusionDictionary.DictionaryOptions(
new HashMap<String, String>(), false, false));
addUnigrams(sWords.size(), dict, sWords, null /* shortcutMap */);
timeWritingDictToFile(file, dict, VERSION3_WITH_LINKEDLIST_NODE);
final FusionDictionaryBufferInterface buffer = getBuffer(file, USE_BYTE_ARRAY);
try {
MoreAsserts.assertNotEqual(FormatSpec.NOT_VALID_WORD,
BinaryDictIOUtils.getTerminalPosition(buffer, sWords.get(0)));
BinaryDictIOUtils.deleteWord(buffer, sWords.get(0));
assertEquals(FormatSpec.NOT_VALID_WORD,
BinaryDictIOUtils.getTerminalPosition(buffer, sWords.get(0)));
MoreAsserts.assertNotEqual(FormatSpec.NOT_VALID_WORD,
BinaryDictIOUtils.getTerminalPosition(buffer, sWords.get(5)));
BinaryDictIOUtils.deleteWord(buffer, sWords.get(5));
assertEquals(FormatSpec.NOT_VALID_WORD,
BinaryDictIOUtils.getTerminalPosition(buffer, sWords.get(5)));
} catch (IOException e) {
} catch (UnsupportedFormatException e) {
}
}
}