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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.makedict;
import com.android.inputmethod.latin.makedict.FormatSpec.DictionaryOptions;
import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
import java.io.File;
import java.util.HashMap;
public class BinaryDictUtils {
public static final int USE_BYTE_ARRAY = 1;
public static final int USE_BYTE_BUFFER = 2;
public static final String TEST_DICT_FILE_EXTENSION = ".testDict";
public static final FormatSpec.FormatOptions VERSION2_OPTIONS =
new FormatSpec.FormatOptions(FormatSpec.VERSION2);
public static final FormatSpec.FormatOptions VERSION201_OPTIONS =
new FormatSpec.FormatOptions(FormatSpec.VERSION201);
public static final FormatSpec.FormatOptions VERSION4_OPTIONS_WITHOUT_TIMESTAMP =
new FormatSpec.FormatOptions(FormatSpec.VERSION4, false /* hasTimestamp */);
public static final FormatSpec.FormatOptions VERSION4_OPTIONS_WITH_TIMESTAMP =
new FormatSpec.FormatOptions(FormatSpec.VERSION4, true /* hasTimestamp */);
public static DictionaryOptions makeDictionaryOptions(final String id, final String version,
final FormatSpec.FormatOptions formatOptions) {
final DictionaryOptions options = new DictionaryOptions(new HashMap<String, String>());
options.mAttributes.put(DictionaryHeader.DICTIONARY_LOCALE_KEY, "en_US");
options.mAttributes.put(DictionaryHeader.DICTIONARY_ID_KEY, id);
options.mAttributes.put(DictionaryHeader.DICTIONARY_VERSION_KEY, version);
if (formatOptions.mHasTimestamp) {
options.mAttributes.put(DictionaryHeader.HAS_HISTORICAL_INFO_KEY,
DictionaryHeader.ATTRIBUTE_VALUE_TRUE);
options.mAttributes.put(DictionaryHeader.USES_FORGETTING_CURVE_KEY,
DictionaryHeader.ATTRIBUTE_VALUE_TRUE);
}
return options;
}
public static File getDictFile(final String name, final String version,
final FormatOptions formatOptions, final File directory) {
if (formatOptions.mVersion == FormatSpec.VERSION2
|| formatOptions.mVersion == FormatSpec.VERSION201) {
return new File(directory, name + "." + version + TEST_DICT_FILE_EXTENSION);
} else if (formatOptions.mVersion == FormatSpec.VERSION4) {
return new File(directory, name + "." + version);
} else {
throw new RuntimeException("the format option has a wrong version : "
+ formatOptions.mVersion);
}
}
public static DictEncoder getDictEncoder(final File file, final FormatOptions formatOptions) {
if (formatOptions.mVersion == FormatSpec.VERSION4) {
if (!file.isDirectory()) {
file.mkdir();
}
return new Ver4DictEncoder(file);
} else if (formatOptions.mVersion == FormatSpec.VERSION2) {
return new Ver2DictEncoder(file, Ver2DictEncoder.CODE_POINT_TABLE_OFF);
} else {
throw new RuntimeException("The format option has a wrong version : "
+ formatOptions.mVersion);
}
}
}
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