Example usage for com.google.common.base Strings isNullOrEmpty

Introduction

In this page you can find the example usage for com.google.common.base Strings isNullOrEmpty.

Prototype

public static boolean isNullOrEmpty(@Nullable String string)

Source Link

Document

Returns true if the given string is null or is the empty string.

Usage

From source file:com.google.gerrit.server.util.LogUtil.java

public static boolean shouldConfigureLogSystem() {
    return Strings.isNullOrEmpty(System.getProperty(LOG4J_CONFIGURATION));
}

From source file:be.ohatv.searchproviders.Btdigg.java

public static String GrapMagnet(String phrase) {
    try {//from   ww w  .  j a  va 2  s .c o m
        if (Strings.isNullOrEmpty(phrase) == false) {
            JSONObject jsonsettings = DbFunctions.getBittorrentclient();
            String ignorewords[] = null;
            if (jsonsettings.has("btignorewords")) {
                String btignorewords = jsonsettings.getString("btignorewords");
                ignorewords = btignorewords.split(";");
            }
            phrase = phrase.replaceAll("\\(", "");
            phrase = phrase.replaceAll("\\)", "");
            String strwords[] = phrase.split(" ");
            String quality = "";
            if (phrase.contains("720p")) {
                quality = "720p";
            } else if (phrase.contains("1080p")) {
                quality = "1080p";
            }

            StringBuilder sbhtml = new StringBuilder();
            sbhtml.append(url).append(URLEncoder.encode(phrase, "UTF-8"));
            String btdiggpage = Webclient.sendGet(sbhtml.toString());
            if (Strings.isNullOrEmpty(btdiggpage) == false) {
                List<String> lstmagnets = new ArrayList<>();
                Pattern p = Pattern.compile("href=\"(.*?)\"");
                Matcher m = p.matcher(btdiggpage);
                while (m.find()) {
                    String magnet = m.group(1);
                    if (magnet.contains("magnet:?")) {
                        lstmagnets.add(magnet);
                    }
                }
                if (lstmagnets.size() > 0) {
                    int counter = 0;
                    for (String magnet : lstmagnets) {
                        for (String word : strwords) {
                            if (magnet.toLowerCase().contains(word.toLowerCase())) {
                                counter++;
                            }
                        }
                        if (counter == strwords.length) {
                            if (Strings.isNullOrEmpty(quality) == false) {
                                if (magnet.contains(quality) == false) {
                                    counter = 0;
                                }
                            } else {
                                if (magnet.contains("720") && magnet.contains("1080")) {
                                    counter = 0;
                                }
                            }
                        }
                        if (counter == strwords.length) {
                            return magnet;
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

From source file:co.cask.hydrator.plugin.FieldCase.java

public static FieldCase toFieldCase(String fieldCase) {
    if (Strings.isNullOrEmpty(fieldCase)) {
        return FieldCase.NONE;
    }//from  w w  w.jav a2 s.  c om

    try {
        return FieldCase.valueOf(fieldCase.toUpperCase());
    } catch (IllegalArgumentException e) {
        return FieldCase.NONE;
    }
}

From source file:com.urswolfer.gerrit.client.rest.http.util.UrlUtils.java

public static String appendToUrlQuery(String query, String parameter) {
    if (!Strings.isNullOrEmpty(query)) {
        query += "&";
    }// ww w. j av  a  2 s.c  o  m
    query += parameter;
    return query;
}

From source file:com.tosinogunrinde.cql.statementbuilder.util.StringValidator.java

public static void validateNotNullOrEmpty(String value) {
    if (Strings.isNullOrEmpty(value)) {
        throw new IllegalArgumentException("value must not be null or empty");
    }//from w  ww  . j a  va  2s . com
}

From source file:com.google.util.JspUtil.java

public static boolean isNullOrEmpty(String value) {
    return Strings.isNullOrEmpty(value);
}

From source file:com.shampan.db.services.SearchController.java

public static void getSearchResult(RoutingContext routingContext) {
    int offset = 0;
    int limit = 10;
    String searchValue = routingContext.request().getParam("searchValue");
    /*//w w  w . j  ava2  s  .c o  m
    If offset is incorrect then offset will be used as default
    */
    if (!Strings.isNullOrEmpty(routingContext.request().getParam("offset"))) {
        try {
            offset = Integer.parseInt(routingContext.request().getParam("offset"));
        } catch (NumberFormatException nfe) {
            logger.debug(nfe.getMessage());
        }
    }
    /*
    If limit is incorrect then limit will be used as default
    */
    if (!Strings.isNullOrEmpty(routingContext.request().getParam("limit"))) {
        try {
            limit = Integer.parseInt(routingContext.request().getParam("limit"));
        } catch (NumberFormatException nfe) {
            logger.debug(nfe.getMessage());
        }
    }
    routingContext.response().putHeader("content-type", "application/json; charset=utf-8")
            .end(SearchService.getSearchResult(searchValue, offset, limit));
}

From source file:org.incode.eurocommercial.contactapp.dom.util.StringUtil.java

public static String firstNonEmpty(final String... str) {
    for (String s : str) {
        if (!Strings.isNullOrEmpty(s)) {
            return s;
        }/*  w  w w .j av  a  2s. co m*/
    }
    return null;
}

From source file:be.ohatv.btclients.Transmission.java

private static void getsessiontoken(String url) {
    try {//w  w w  .j a  va2s.  c om
        String s = getTransmissionSessionId(url);
        if (Strings.isNullOrEmpty(s) == false) {
            sessiontoken = s;
        }
    } catch (Exception ex) {

    }
}

From source file:org.shaf.core.util.PatternUtils.java

public static final Pattern getWildCardPattern(final String wildcard) {
    if (Strings.isNullOrEmpty(wildcard)) {
        throw new IllegalArgumentException("The wildcard is not defined.");
    }/*ww  w.j  a  va 2 s  .c o  m*/

    StringBuilder regexp = new StringBuilder();
    for (int i = 0, is = wildcard.length(); i < is; i++) {
        char c = wildcard.charAt(i);
        switch (c) {
        case '*':
            regexp.append(".*");
            break;
        case '?':
            regexp.append('.');
            break;
        case '(':
        case ')':
        case '[':
        case ']':
        case '$':
        case '^':
        case '.':
        case '{':
        case '}':
        case '|':
        case '\\':
            regexp.append('\\');
            regexp.append(c);
            break;
        default:
            regexp.append(c);
            break;
        }
    }
    return Pattern.compile(regexp.toString());
}