org.daisy.braille.utils.pef.PEFSearchIndex Maven / Gradle / Ivy
package org.daisy.braille.utils.pef;
/**
* Provides a search index for PEFBook objects.
* @author Joel Håkansson
*
*/
public class PEFSearchIndex extends SearchIndex {
private static final String REGEX = "[\\s\\.,:/-]";
/**
* Creates a new pef search index.
*/
public PEFSearchIndex() {
super();
}
/**
* Creates a new pef search index with the specified limit.
* @param exclude the sub word limit, in other words
* the shortest substrings that will match the search
* term. For example, if the limit is 3, a search for
* "li" will not match entries containing the string "limit"
*/
public PEFSearchIndex(int exclude) {
super(exclude);
}
/**
* Adds a PEFBook to the index.
* @param p the book to add
*/
public void add(PEFBook p) {
for (String key : p.getMetadataKeys()) {
for (String val : p.getMetadata(key)) {
if ("format".equals(key)) {
continue;
}
for (String ind : val.toLowerCase().split(REGEX)) {
if (ind!=null && ind.length()>0) {
if ("identifier".equals(key)) {
add(ind, p, true);
} else {
add(ind, p, false);
}
}
}
}
}
}
}