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some prefomance turting

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git-svn-id: https://russianmorphology.googlecode.com/svn/trunk@122 d817d54c-26ab-11de-abc9-2f7d1455ff7a
This commit is contained in:
Alexander.A.Kuznetsov
2010-10-18 12:24:50 +00:00
parent 43136e0de1
commit d46651f2ba
11 changed files with 19 additions and 206 deletions
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29
english/src/main/java/org/apache/lucene/morphology/EnglishAnalyzer.java
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/**
* Copyright 2009 Alexander Kuznetsov
*
* 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.apache.lucene.morphology;
import org.apache.lucene.morphology.analyzer.MorphologyAnalyzer;
import java.io.IOException;
public class EnglishAnalyzer extends MorphologyAnalyzer {
public EnglishAnalyzer() throws IOException {
super(new EnglishLuceneMorphology());
}
}

111
english/src/main/java/org/apache/lucene/morphology/EnglishLetterDecoderEncoder.java
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/**
* Copyright 2009 Alexander Kuznetsov
*
* 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.apache.lucene.morphology;
import java.util.ArrayList;
public class EnglishLetterDecoderEncoder implements LetterDecoderEncoder {
public static final int ENGLISH_SMALL_LETTER_OFFSET = 96;
static public int SUFFIX_LENGTH = 6;
public static final int DASH_CHAR = 45;
public static final int DASH_CODE = 27;
public Integer encode(String string) {
if (string.length() > 6) throw new SuffixToLongException("Suffix length should not be greater then " + 12);
int result = 0;
for (int i = 0; i < string.length(); i++) {
int c = 0 + string.charAt(i) - ENGLISH_SMALL_LETTER_OFFSET;
if (c == 45 - ENGLISH_SMALL_LETTER_OFFSET) {
c = DASH_CODE;
}
if (c < 0 || c > 27)
throw new WrongCharaterException("Symblo " + string.charAt(i) + " is not small cirillic letter");
result = result * 28 + c;
}
for (int i = string.length(); i < 6; i++) {
result *= 28;
}
return result;
}
public int[] encodeToArray(String s) {
ArrayList<Integer> integers = new ArrayList<Integer>();
while (s.length() > 6) {
integers.add(encode(s.substring(0, 6)));
s = s.substring(6);
}
integers.add(encode(s));
int[] ints = new int[integers.size()];
int pos = 0;
for (Integer i : integers) {
ints[pos] = i;
pos++;
}
return ints;
}
public String decodeArray(int[] array) {
String result = "";
for (int i : array) {
result += decode(i);
}
return result;
}
public String decode(Integer suffixN) {
String result = "";
while (suffixN > 27) {
int c = suffixN % 28 + ENGLISH_SMALL_LETTER_OFFSET;
if (c == ENGLISH_SMALL_LETTER_OFFSET) {
suffixN /= 28;
continue;
}
if (c == DASH_CODE + ENGLISH_SMALL_LETTER_OFFSET) c = DASH_CHAR;
result = (char) c + result;
suffixN /= 28;
}
long c = suffixN + ENGLISH_SMALL_LETTER_OFFSET;
if (c == DASH_CODE + ENGLISH_SMALL_LETTER_OFFSET) c = DASH_CHAR;
result = (char) c + result;
return result;
}
public boolean checkCharacter(char c) {
int code = 0 + c;
if (code == 45) return true;
code -= ENGLISH_SMALL_LETTER_OFFSET;
if (code > 0 && code < 27) return true;
return false;
}
public boolean checkString(String word) {
for (int i = 0; i < word.length(); i++) {
if (!checkCharacter(word.charAt(i))) {
return false;
}
}
return true;
}
public String cleanString(String s) {
return s;
}
}

26
english/src/main/java/org/apache/lucene/morphology/EnglishLuceneMorphology.java
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@ -1,26 +0,0 @@
/**
* Copyright 2009 Alexander Kuznetsov
*
* 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.apache.lucene.morphology;
import java.io.IOException;
public class EnglishLuceneMorphology extends LuceneMorphology {
public EnglishLuceneMorphology() throws IOException {
super(EnglishLuceneMorphology.class.getResourceAsStream("/org/apache/lucene/morphology/english/morph.info"), new EnglishLetterDecoderEncoder());
}
}

26
english/src/main/java/org/apache/lucene/morphology/EnglishMorphology.java
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@ -1,26 +0,0 @@
/**
* Copyright 2009 Alexander Kuznetsov
*
* 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.apache.lucene.morphology;
import java.io.IOException;
public class EnglishMorphology extends MorphologyImpl {
public EnglishMorphology() throws IOException {
super(EnglishLuceneMorphology.class.getResourceAsStream("/org/apache/lucene/morphology/english/morph.info"), new EnglishLetterDecoderEncoder());
}
}