com.atilika.kuromoji.dict.ConnectionCosts Maven / Gradle / Ivy
/*-*
* Copyright © 2010-2015 Atilika Inc. and contributors (see CONTRIBUTORS.md)
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. A copy of the
* License is distributed with this work in the LICENSE.md file. You may
* also obtain a copy of the License from
*
* 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.atilika.kuromoji.dict;
import com.atilika.kuromoji.io.ByteBufferIO;
import com.atilika.kuromoji.util.KuromojiBinFilesFetcher;
import com.atilika.kuromoji.util.ResourceResolver;
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.ShortBuffer;
public class ConnectionCosts {
// public static final String CONNECTION_COSTS_FILENAME = "connectionCosts.bin";
public static final String CONNECTION_COSTS_FILENAME = new File(KuromojiBinFilesFetcher.getKuromojiRoot(),
"connectionCosts.bin").getAbsolutePath();
private int size;
private ShortBuffer costs;
public ConnectionCosts(int size, ShortBuffer costs) {
this.size = size;
this.costs = costs;
}
public int get(int forwardId, int backwardId) {
return costs.get(backwardId + forwardId * size);
}
public static ConnectionCosts newInstance(ResourceResolver resolver) throws IOException {
return read(resolver.resolve(CONNECTION_COSTS_FILENAME));
}
private static ConnectionCosts read(InputStream input) throws IOException {
DataInputStream dataInput = new DataInputStream(new BufferedInputStream(input));
int size = dataInput.readInt();
ByteBuffer byteBuffer = ByteBufferIO.read(dataInput);
ShortBuffer costs = byteBuffer.asShortBuffer();
return new ConnectionCosts(size, costs);
}
}