KeywordsUtil.java |
1 /** 2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved. 3 * 4 * The contents of this file are subject to the terms of the Liferay Enterprise 5 * Subscription License ("License"). You may not use this file except in 6 * compliance with the License. You can obtain a copy of the License by 7 * contacting Liferay, Inc. See the License for the specific language governing 8 * permissions and limitations under the License, including but not limited to 9 * distribution rights of the Software. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 17 * SOFTWARE. 18 */ 19 20 package com.liferay.util.lucene; 21 22 import com.liferay.portal.kernel.util.StringPool; 23 import com.liferay.portal.kernel.util.StringUtil; 24 25 /** 26 * <a href="KeywordsUtil.java.html"><b><i>View Source</i></b></a> 27 * 28 * @author Brian Wing Shun Chan 29 * @author Mirco Tamburini 30 * @author Josiah Goh 31 * 32 */ 33 public class KeywordsUtil { 34 35 public static final String[] SPECIAL = new String[] { 36 "+", "-", "&&", "||", "!", "(", ")", "{", "}", "[", "]", "^", "\"", "~", 37 "*", "?", ":", "\\" 38 }; 39 40 public static String escape(String text) { 41 for (int i = SPECIAL.length - 1; i >= 0; i--) { 42 text = StringUtil.replace( 43 text, SPECIAL[i], StringPool.BACK_SLASH + SPECIAL[i]); 44 } 45 46 return text; 47 } 48 49 public static String toFuzzy(String keywords) { 50 if (keywords == null) { 51 return null; 52 } 53 54 if (!keywords.endsWith(StringPool.TILDE)) { 55 keywords = keywords + StringPool.TILDE; 56 } 57 58 return keywords; 59 } 60 61 public static String toWildcard(String keywords) { 62 if (keywords == null) { 63 return null; 64 } 65 66 if (!keywords.endsWith(StringPool.STAR)) { 67 keywords = keywords + StringPool.STAR; 68 } 69 70 return keywords; 71 } 72 73 }