package mobvista.dmp.util; import com.google.common.base.Joiner; import com.google.common.base.Splitter; import com.google.common.collect.Iterables; import java.util.List; import java.util.Map; import java.util.regex.Pattern; /** * author: houying * date : 16-10-25 * desc : */ public final class MRUtils { public static Pattern SPLITTER = Pattern.compile("\t"); public static Joiner JOINER = Joiner.on("\t").useForNull(""); public static String join(Iterable<String> iterable, String sep) { if (sep.equals("\t")) { return JOINER.join(iterable); } else { return Joiner.on(sep).useForNull("").join(iterable); } } public static String join(String[] iterable, String sep) { if (sep.equals("\t")) { return JOINER.join(iterable); } else { return Joiner.on(sep).useForNull("").join(iterable); } } public static Map<String, String> splitToMap(String str, String sep, String keyValueSep) { return Splitter.on(sep).withKeyValueSeparator(keyValueSep).split(str); } public static String joinMapToString(Map<String, String> map, String rep, String keyValueSep) { return Joiner.on(rep).withKeyValueSeparator(keyValueSep).join(map); } }