本文整理了Java中com.graphhopper.util.Helper.isEmpty()方法的一些代码示例，展示了Helper.isEmpty()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Helper.isEmpty()方法的具体详情如下：
包路径：com.graphhopper.util.Helper
类名称：Helper
方法名：isEmpty

Helper.isEmpty介绍

暂无

代码示例

代码示例来源：origin: graphhopper/graphhopper

public boolean isValidName() {
  return !Helper.isEmpty(name);
}

代码示例来源：origin: graphhopper/graphhopper

public static int countOccurence(String phrase, String splitter) {
  if (isEmpty(phrase))
    return 0;
  return phrase.trim().split(splitter).length;
}

代码示例来源：origin: graphhopper/graphhopper

public GHDirectory(String _location, DAType defaultType) {
  this.defaultType = defaultType;
  if (isEmpty(_location))
    _location = new File("").getAbsolutePath();
  if (!_location.endsWith("/"))
    _location += "/";
  location = _location;
  File dir = new File(location);
  if (dir.exists() && !dir.isDirectory())
    throw new RuntimeException("file '" + dir + "' exists but is not a directory");
}

代码示例来源：origin: graphhopper/graphhopper

@Override
public String toString() {
  String str = "";
  if (!Helper.isEmpty(name)) {
    str += name + " ";
  }
  return str + "time:" + getSeconds();
}

代码示例来源：origin: graphhopper/graphhopper

/**
 * This file can be any file type supported by the DataReader. E.g. for the OSMReader it is the
 * OSM xml (.osm), a compressed xml (.osm.zip or .osm.gz) or a protobuf file (.pbf)
 */
public GraphHopper setDataReaderFile(String dataReaderFileStr) {
  ensureNotLoaded();
  if (isEmpty(dataReaderFileStr))
    throw new IllegalArgumentException("Data reader file cannot be empty.");
  dataReaderFile = dataReaderFileStr;
  return this;
}

代码示例来源：origin: graphhopper/graphhopper

public boolean getBool(String key, boolean _default) {
  String str = get(key);
  if (!Helper.isEmpty(str)) {
    try {
      return Boolean.parseBoolean(str);
    } catch (Exception ex) {
    }
  }
  return _default;
}

代码示例来源：origin: graphhopper/graphhopper

public double getDouble(String key, double _default) {
  String str = get(key);
  if (!Helper.isEmpty(str)) {
    try {
      return Double.parseDouble(str);
    } catch (Exception ex) {
    }
  }
  return _default;
}

代码示例来源：origin: graphhopper/graphhopper

public String get(String key, String _default) {
  String str = get(key);
  if (Helper.isEmpty(str))
    return _default;
  return str;
}

代码示例来源：origin: graphhopper/graphhopper

String get(String key) {
  if (Helper.isEmpty(key))
    return "";
  // query accepts camelCase and under_score
  String val = map.get(Helper.camelCaseToUnderScore(key));
  if (val == null)
    return "";
  return val;
}

代码示例来源：origin: graphhopper/graphhopper

PMap merge(Map<String, String> map) {
  for (Map.Entry<String, String> e : map.entrySet()) {
    if (Helper.isEmpty(e.getKey()))
      continue;
    put(e.getKey(), e.getValue());
  }
  return this;
}

代码示例来源：origin: graphhopper/graphhopper

public AbstractDataAccess(String name, String location, ByteOrder order) {
  byteOrder = order;
  bitUtil = BitUtil.get(order);
  this.name = name;
  if (!Helper.isEmpty(location) && !location.endsWith("/"))
    throw new IllegalArgumentException("Create DataAccess object via its corresponding Directory!");
  this.location = location;
}

代码示例来源：origin: graphhopper/graphhopper

@Override
public String tr(String key, Object... params) {
  String val = map.get(toLowerCase(key));
  if (isEmpty(val))
    return key;
  return String.format(Locale.ROOT, val, params);
}

代码示例来源：origin: graphhopper/graphhopper

public int getInt(String key, int _default) {
  String str = get(key);
  if (!Helper.isEmpty(str)) {
    try {
      return Integer.parseInt(str);
    } catch (Exception ex) {
    }
  }
  return _default;
}

代码示例来源：origin: graphhopper/graphhopper

public float getFloat(String key, float _default) {
  String str = get(key);
  if (!Helper.isEmpty(str)) {
    try {
      return Float.parseFloat(str);
    } catch (Exception ex) {
    }
  }
  return _default;
}

代码示例来源：origin: graphhopper/graphhopper

protected boolean checkBeforeRename(String newName) {
  if (Helper.isEmpty(newName))
    throw new IllegalArgumentException("newName mustn't be empty!");
  if (newName.equals(name))
    return false;
  if (isStoring() && new File(location + newName).exists())
    throw new IllegalArgumentException("file newName already exists!");
  return true;
}

代码示例来源：origin: graphhopper/graphhopper

public long getLong(String key, long _default) {
  String str = get(key);
  if (!Helper.isEmpty(str)) {
    try {
      return Long.parseLong(str);
    } catch (Exception ex) {
    }
  }
  return _default;
}

代码示例来源：origin: graphhopper/graphhopper

public MatrixResponse route(GHMRequest request) {
    if (!Helper.isEmpty(key)) {
      request.getHints().put(KEY, key);
    }
    return requester.route(request);
  }
}

代码示例来源：origin: graphhopper/graphhopper

private long extractMeter(ReaderWay way, long flags, EncodedDoubleValue valueEncoder, List<String> keys) {
  String value = way.getFirstPriorityTag(keys);
  if (isEmpty(value)) return flags;
  double val;
  try {
    val = stringToMeter(value);
  } catch (Exception ex) {
    LOG.warn("Unable to extract meter from malformed road attribute '{}' for way (OSM_ID = {}).", value, way.getId(), ex);
    return flags;
  }
  try {
    flags = valueEncoder.setDoubleValue(flags, val);
  } catch (IllegalArgumentException e) {
    LOG.warn("Unable to process value '{}' for way (OSM_ID = {}).", val, way.getId(), e);
  }
  return flags;
}

代码示例来源：origin: graphhopper/graphhopper

private long extractTons(ReaderWay way, long flags, EncodedDoubleValue valueEncoder, List<String> keys) {
  String value = way.getFirstPriorityTag(keys);
  if (isEmpty(value)) return flags;
  double val;
  try {
    val = stringToTons(value);
  } catch (Throwable t) {
    LOG.warn("Unable to extract tons from malformed road attribute '{}' for way (OSM_ID = {}).", value, way.getId(), t);
    return flags;
  }
  try {
    flags = valueEncoder.setDoubleValue(flags, val);
  } catch (IllegalArgumentException e) {
    LOG.warn("Unable to process tons value '{}' for way (OSM_ID = {}).", val, way.getId(), e);
  }
  return flags;
}

代码示例来源：origin: graphhopper/graphhopper

protected String buildURLNoHints(String path, GHMRequest ghRequest) {
  // allow per request service URLs
  String tmpServiceURL = ghRequest.getHints().get(SERVICE_URL, serviceUrl);
  String url = tmpServiceURL;
  url += path + "?";
  String key = ghRequest.getHints().get(KEY, "");
  if (!Helper.isEmpty(key)) {
    url += "key=" + key;
  }
  return url;
}