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+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef HADOOP_STRING_UTILS_HH
+#define HADOOP_STRING_UTILS_HH
+
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+namespace HadoopUtils {
+
+ /**
+ * Convert an integer to a string.
+ */
+ std::string toString(int32_t x);
+
+ /**
+ * Convert a string to an integer.
+ * @throws Error if the string is not a valid integer
+ */
+ int32_t toInt(const std::string& val);
+
+ /**
+ * Convert the string to a float.
+ * @throws Error if the string is not a valid float
+ */
+ float toFloat(const std::string& val);
+
+ /**
+ * Convert the string to a boolean.
+ * @throws Error if the string is not a valid boolean value
+ */
+ bool toBool(const std::string& val);
+
+ /**
+ * Get the current time in the number of milliseconds since 1970.
+ */
+ uint64_t getCurrentMillis();
+
+ /**
+ * Split a string into "words". Multiple deliminators are treated as a single
+ * word break, so no zero-length words are returned.
+ * @param str the string to split
+ * @param separator a list of characters that divide words
+ */
+ std::vector<std::string> splitString(const std::string& str,
+ const char* separator);
+
+ /**
+ * Quote a string to avoid "\", non-printable characters, and the
+ * deliminators.
+ * @param str the string to quote
+ * @param deliminators the set of characters to always quote
+ */
+ std::string quoteString(const std::string& str,
+ const char* deliminators);
+
+ /**
+ * Unquote the given string to return the original string.
+ * @param str the string to unquote
+ */
+ std::string unquoteString(const std::string& str);
+
+}
+
+#endif