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* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.index.analysis;
import org.apache.lucene.analysis.CharArraySet;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.test.ESTestCase;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import java.nio.charset.MalformedInputException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.NoSuchFileException;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import static org.hamcrest.Matchers.is;
public class AnalysisTests extends ESTestCase {
public void testParseStemExclusion() {
/* Comma separated list */
Settings settings = Settings.builder().put("stem_exclusion", "foo,bar").build();
CharArraySet set = Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET);
assertThat(set.contains("foo"), is(true));
assertThat(set.contains("bar"), is(true));
assertThat(set.contains("baz"), is(false));
/* Array */
settings = Settings.builder().putArray("stem_exclusion", "foo","bar").build();
set = Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET);
assertThat(set.contains("foo"), is(true));
assertThat(set.contains("bar"), is(true));
assertThat(set.contains("baz"), is(false));
}
public void testParseNonExistingFile() {
Path tempDir = createTempDir();
Settings nodeSettings = Settings.builder()
.put("foo.bar_path", tempDir.resolve("foo.dict"))
.put(Environment.PATH_HOME_SETTING.getKey(), tempDir).build();
Environment env = new Environment(nodeSettings);
IllegalArgumentException ex = expectThrows(IllegalArgumentException.class,
() -> Analysis.getWordList(env, nodeSettings, "foo.bar"));
assertEquals("IOException while reading foo.bar_path: " + tempDir.resolve("foo.dict").toString(), ex.getMessage());
assertTrue(ex.getCause().toString(), ex.getCause() instanceof FileNotFoundException
|| ex.getCause() instanceof NoSuchFileException);
}
public void testParseFalseEncodedFile() throws IOException {
Path tempDir = createTempDir();
Path dict = tempDir.resolve("foo.dict");
Settings nodeSettings = Settings.builder()
.put("foo.bar_path", dict)
.put(Environment.PATH_HOME_SETTING.getKey(), tempDir).build();
try (OutputStream writer = Files.newOutputStream(dict)) {
writer.write(new byte[]{(byte) 0xff, 0x00, 0x00}); // some invalid UTF-8
writer.write('\n');
}
Environment env = new Environment(nodeSettings);
IllegalArgumentException ex = expectThrows(IllegalArgumentException.class,
() -> Analysis.getWordList(env, nodeSettings, "foo.bar"));
assertEquals("Unsupported character encoding detected while reading foo.bar_path: " + tempDir.resolve("foo.dict").toString()
+ " - files must be UTF-8 encoded" , ex.getMessage());
assertTrue(ex.getCause().toString(), ex.getCause() instanceof MalformedInputException
|| ex.getCause() instanceof CharacterCodingException);
}
public void testParseWordList() throws IOException {
Path tempDir = createTempDir();
Path dict = tempDir.resolve("foo.dict");
Settings nodeSettings = Settings.builder()
.put("foo.bar_path", dict)
.put(Environment.PATH_HOME_SETTING.getKey(), tempDir).build();
try (BufferedWriter writer = Files.newBufferedWriter(dict, StandardCharsets.UTF_8)) {
writer.write("hello");
writer.write('\n');
writer.write("world");
writer.write('\n');
}
Environment env = new Environment(nodeSettings);
List<String> wordList = Analysis.getWordList(env, nodeSettings, "foo.bar");
assertEquals(Arrays.asList("hello", "world"), wordList);
}
}