/**
 * AnalyzerBeans
 * Copyright (C) 2014 Neopost - Customer Information Management
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.eobjects.analyzer.reference;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.apache.metamodel.util.FileHelper;

import junit.framework.TestCase;

public class TextFileSynonymCatalogTest extends TestCase {

    public void testCountrySynonyms() throws Exception {
        SynonymCatalog cat = new TextFileSynonymCatalog("foobar", "src/test/resources/synonym-countries.txt", true,
                "UTF-8");
        assertNull(cat.getMasterTerm("foobar"));
        assertEquals("DNK", cat.getMasterTerm("Denmark"));
        assertEquals("GBR", cat.getMasterTerm("England"));

        assertEquals("GBR", cat.getMasterTerm("GBR"));
        assertEquals("DNK", cat.getMasterTerm("DNK"));
    }

    public void testSerializationAndDeserialization() throws Exception {
        SynonymCatalog cat = new TextFileSynonymCatalog("foobar", "src/test/resources/synonym-countries.txt", true,
                "UTF-8");
        assertEquals("DNK", cat.getMasterTerm("Denmark"));

        byte[] bytes;
        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
                ObjectOutputStream os = new ObjectOutputStream(baos)) {
            os.writeObject(cat);
            os.flush();
            bytes = baos.toByteArray();
        }

        assertEquals("DNK", cat.getMasterTerm("Denmark"));
        cat = null;

        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
        ObjectInputStream is = new ObjectInputStream(bais);
        cat = (SynonymCatalog) is.readObject();

        assertEquals("DNK", cat.getMasterTerm("Denmark"));
    }

    public void testModificationsClearCache() throws Exception {
        File file = new File("target/TextBasedSynonymCatalogTest-modification.txt");
        FileHelper.writeStringAsFile(file, "foo,fooo,fo\nbar,baar,br");
        SynonymCatalog cat = new TextFileSynonymCatalog("sc", file, true, "UTF-8");
        assertEquals("foo", cat.getMasterTerm("fooo"));
        assertEquals("bar", cat.getMasterTerm("br"));
        assertEquals(null, cat.getMasterTerm("foob"));

        // sleep for two seconds because some filesystems only support
        // modification dating for the nearest second.
        Thread.sleep(2000);

        FileHelper.writeStringAsFile(file, "foo,fooo,fo\nfoobar,foob");
        assertEquals("foo", cat.getMasterTerm("fooo"));
        assertEquals(null, cat.getMasterTerm("br"));
        assertEquals("foobar", cat.getMasterTerm("foob"));
    }
}