/*
* Copyright 2012-2015 the original author or authors.
*
* 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.springframework.boot.configurationmetadata;
import java.text.BreakIterator;
import java.util.Locale;
/**
* Utility to extract a description.
*
* @author Stephane Nicoll
*/
class DescriptionExtractor {
private static final String NEW_LINE = System.getProperty("line.separator");
public String getShortDescription(String description) {
if (description == null) {
return null;
}
int dot = description.indexOf(".");
if (dot != -1) {
BreakIterator breakIterator = BreakIterator.getSentenceInstance(Locale.US);
breakIterator.setText(description);
String text = description
.substring(breakIterator.first(), breakIterator.next()).trim();
return removeSpaceBetweenLine(text);
}
else {
String[] lines = description.split(NEW_LINE);
return lines[0].trim();
}
}
private String removeSpaceBetweenLine(String text) {
String[] lines = text.split(NEW_LINE);
StringBuilder sb = new StringBuilder();
for (String line : lines) {
sb.append(line.trim()).append(" ");
}
return sb.toString().trim();
}
}