com.arangodb.util.StringUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of arangodb-java-driver Show documentation

ArangoDB Java Driver

There is a newer version: 7.15.0

/*
 * Copyright (C) 2012 tamtam180
 *
 * Licensed 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.
 */

package com.arangodb.util;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Arrays;
import java.util.Collection;

/**
 * @author tamtam180 - kirscheless at gmail.com
 *
 */
public class StringUtils {

  public static String encodeUrl(String text) {
    if (text != null) {
      try {
        return URLEncoder.encode(text, "UTF-8");
      } catch (UnsupportedEncodingException e) {
      }
    }
    return null;
  }
  
  public static boolean isCurlyBracketStart(String text) {
    
    if (text == null || "".equals(text)) {
      return false;
    }
    
    int i = 0;
    while (i < text.length() && Character.isWhitespace(text.charAt(i))) {
      i++;
    }
    return i < text.length() && text.charAt(i) == '{';
    
  }

  public static String join(String... params) {
    if (params == null) {
      return null;
    }
    return join(false, Arrays.asList(params));
  }

  public static String join(boolean endSlash, Collection paths) {
    if (paths == null || paths.isEmpty()) {
      return null;
    }
    
    boolean prevLastSlash = false;
    StringBuilder buffer = new StringBuilder();
    for (String param: paths) {
      if (param == null) continue;
      if (!prevLastSlash && !param.startsWith("/")) {
        buffer.append('/');
      }
      if (prevLastSlash && param.startsWith("/")) {
        buffer.append(param.substring(1));
      } else {
        buffer.append(param);
      }
      prevLastSlash = param.endsWith("/");
    }
    if (endSlash && !prevLastSlash) {
      buffer.append('/');
    }
    return buffer.toString();
  }
  
}