LatinIME/java/src/com/android/inputmethod/latin/AbstractDictionaryWriter.java

79 lines
2.7 KiB
Java
Raw Normal View History

/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin;
import android.content.Context;
import android.util.Log;
import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
// TODO: Quit extending Dictionary after implementing dynamic binary dictionary.
abstract public class AbstractDictionaryWriter extends Dictionary {
/** Used for Log actions from this class */
private static final String TAG = AbstractDictionaryWriter.class.getSimpleName();
private final Context mContext;
public AbstractDictionaryWriter(final Context context, final String dictType) {
super(dictType);
mContext = context;
}
abstract public void clear();
abstract public void addUnigramWord(final String word, final String shortcutTarget,
final int frequency, final boolean isNotAWord);
abstract public void addBigramWords(final String word0, final String word1,
final int frequency, final boolean isValid);
abstract public void removeBigramWords(final String word0, final String word1);
abstract protected void writeBinaryDictionary(final FileOutputStream out)
throws IOException, UnsupportedFormatException;
public void write(final String fileName) {
final String tempFileName = fileName + ".temp";
final File file = new File(mContext.getFilesDir(), fileName);
final File tempFile = new File(mContext.getFilesDir(), tempFileName);
FileOutputStream out = null;
try {
out = new FileOutputStream(tempFile);
writeBinaryDictionary(out);
out.flush();
out.close();
tempFile.renameTo(file);
} catch (IOException e) {
Log.e(TAG, "IO exception while writing file", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "Unsupported format", e);
} finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
// ignore
}
}
}
}
}