/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.sequencer.ddl;
import org.modeshape.common.annotation.NotThreadSafe;
/**
* Interface used by a parser to determine a score describing how well it handles the DDL content.
*/
@NotThreadSafe
public class DdlParserScorer {
private int score = 0;
/**
* Reset the score back to zero.
*/
public void reset() {
this.score = 0;
}
/**
* Increment the score because another statement was matched.
*
* @param count the number of statements
*/
public void scoreStatements( int count ) {
score += count;
}
/**
* Increment the score if the given text contains any of the supply keywords.
*
* @param text the text to evaluate; may be null
* @param factor the factor to use for each increment
* @param keywords the keywords to be found in the text
*/
public void scoreText( String text,
int factor,
String... keywords ) {
if (text != null && keywords != null) {
// Increment the score once for each keyword that is found within the text ...
String lowercaseText = text.toLowerCase();
for (String keyword : keywords) {
if (keyword == null) continue;
String lowercaseKeyword = keyword.toLowerCase();
int index = 0;
while (true) {
index = lowercaseText.indexOf(lowercaseKeyword, index);
if (index == -1) break;
score += factor;
++index;
}
}
}
}
/**
* Increment the score if the given text contains any of the supply keywords.
*
* @param text the text to evaluate; may be null
* @param keywords the keywords to be found in the text
*/
public void scoreText( String text,
String... keywords ) {
scoreText(text, 1, keywords);
}
/**
* Get the score.
*
* @return the score
*/
public int getScore() {
return score;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return Integer.toString(score);
}
}