org.wicketstuff.datatable_autocomplete.trie.TrieUtils Maven / Gradle / Ivy
/*
*
* ==============================================================================
* 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 org.wicketstuff.datatable_autocomplete.trie;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* @author mocleiri persist a built Trie to disk.
*
*/
public final class TrieUtils {
/**
*
*/
private TrieUtils() {
}
/**
* Save the Trie into the file named. This can be useful since creating the Trie takes more memory than storing the simplified/compressed Patricia Trie.
*
* @param dataFile
* @param trie
* @throws FileNotFoundException
* @throws IOException
*/
public static void save(File dataFile, Trietrie) throws FileNotFoundException, IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(
dataFile, false));
oos.writeObject(trie);
oos.close();
}
/**
* Load a Trie from the file named.
*
* @param dataFile
* @return trie loaded from the file name provided.
* @throws FileNotFoundException
* @throws IOException
* @throws ClassNotFoundException
*/
public static Trie load(File dataFile) throws FileNotFoundException, IOException,
ClassNotFoundException {
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(
dataFile));
Trie trie = (Trie) ois.readObject();
ois.close();
return trie;
}
}