diff options
Diffstat (limited to 'app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java')
-rw-r--r-- | app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java | 94 |
1 files changed, 66 insertions, 28 deletions
diff --git a/app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java b/app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java index 20d46aa0..ed2400ef 100644 --- a/app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java +++ b/app/src/main/java/github/daneren2005/dsub/domain/SearchCritera.java @@ -18,6 +18,8 @@ */ package github.daneren2005.dsub.domain; +import java.util.regex.Pattern; + /** * The criteria for a music search. * @@ -25,31 +27,67 @@ package github.daneren2005.dsub.domain; */ public class SearchCritera { - private final String query; - private final int artistCount; - private final int albumCount; - private final int songCount; - - public SearchCritera(String query, int artistCount, int albumCount, int songCount) { - this.query = query; - this.artistCount = artistCount; - this.albumCount = albumCount; - this.songCount = songCount; - } - - public String getQuery() { - return query; - } - - public int getArtistCount() { - return artistCount; - } - - public int getAlbumCount() { - return albumCount; - } - - public int getSongCount() { - return songCount; - } -}
\ No newline at end of file + private final String query; + private final int artistCount; + private final int albumCount; + private final int songCount; + private Pattern pattern; + + public SearchCritera(String query, int artistCount, int albumCount, int songCount) { + this.query = query; + this.artistCount = artistCount; + this.albumCount = albumCount; + this.songCount = songCount; + } + + public String getQuery() { + return query; + } + + public int getArtistCount() { + return artistCount; + } + + public int getAlbumCount() { + return albumCount; + } + + public int getSongCount() { + return songCount; + } + + /** + * Returns and caches a pattern instance that can be used to check if a + * string matches the query. + */ + public Pattern getPattern() { + + // If the pattern wasn't already cached, create a new regular expression + // from the search string : + // * Surround the search string with ".*" (match anything) + // * Replace spaces and wildcard '*' characters with ".*" + // * All other characters are properly quoted + if (this.pattern == null) { + String regex = ".*"; + String currentPart = ""; + for (int i = 0; i < query.length(); i++) { + char c = query.charAt(i); + if (c == '*' || c == ' ') { + regex += Pattern.quote(currentPart); + regex += ".*"; + currentPart = ""; + } else { + currentPart += c; + } + } + if (currentPart.length() > 0) { + regex += Pattern.quote(currentPart); + } + + regex += ".*"; + this.pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE); + } + + return this.pattern; + } +} |