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/*
* 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.DictEncoder;
import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
import com.android.inputmethod.latin.makedict.Ver3DictEncoder;
import java.io.File;
import java.io.IOException;
import java.util.Map;
abstract public class AbstractDictionaryWriter {
/** Used for Log actions from this class */
private static final String TAG = AbstractDictionaryWriter.class.getSimpleName();
private final Context mContext;
public AbstractDictionaryWriter(final Context context) {
mContext = context;
}
abstract public void clear();
/**
* Add a unigram with an optional shortcut to the dictionary.
* @param word The word to add.
* @param shortcutTarget A shortcut target for this word, or null if none.
* @param frequency The frequency for this unigram.
* @param shortcutFreq The frequency of the shortcut (0~15, with 15 = whitelist). Ignored
* if shortcutTarget is null.
* @param isNotAWord true if this is not a word, i.e. shortcut only.
*/
abstract public void addUnigramWord(final String word, final String shortcutTarget,
final int frequency, final int shortcutFreq, final boolean isNotAWord);
// TODO: Remove lastModifiedTime after making binary dictionary support forgetting curve.
abstract public void addBigramWords(final String word0, final String word1,
final int frequency, final boolean isValid, final long lastModifiedTime);
abstract public void removeBigramWords(final String word0, final String word1);
abstract protected void writeDictionary(final DictEncoder dictEncoder,
final Map<String, String> attributeMap) throws IOException, UnsupportedFormatException;
public void write(final File file, final Map<String, String> attributeMap) {
final String tempFilePath = file.getAbsolutePath() + ".temp";
final File tempFile = new File(tempFilePath);
try {
final DictEncoder dictEncoder = new Ver3DictEncoder(tempFile);
writeDictionary(dictEncoder, attributeMap);
tempFile.renameTo(file);
} catch (IOException e) {
Log.e(TAG, "IO exception while writing file", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "Unsupported format", e);
}
}
}
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