| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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. |
| */ |
| package org.jclouds.util; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.io.ByteStreams.toByteArray; |
| import static com.google.common.io.Closeables.closeQuietly; |
| import static org.jclouds.util.Patterns.CHAR_TO_ENCODED_PATTERN; |
| import static org.jclouds.util.Patterns.CHAR_TO_PATTERN; |
| import static org.jclouds.util.Patterns.PLUS_PATTERN; |
| import static org.jclouds.util.Patterns.STAR_PATTERN; |
| import static org.jclouds.util.Patterns.TOKEN_TO_PATTERN; |
| import static org.jclouds.util.Patterns.URL_ENCODED_PATTERN; |
| import static org.jclouds.util.Patterns._7E_PATTERN; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| import java.net.URLDecoder; |
| import java.net.URLEncoder; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.concurrent.ExecutionException; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import javax.annotation.Resource; |
| |
| import org.jclouds.logging.Logger; |
| |
| import com.google.common.base.Charsets; |
| import com.google.common.io.CharStreams; |
| import com.google.common.io.InputSupplier; |
| |
| /** |
| * |
| * |
| * @author Adrian Cole |
| */ |
| public class Strings2 { |
| |
| /** |
| * Web browsers do not always handle '+' characters well, use the well-supported '%20' instead. |
| */ |
| public static String urlEncode(String in, char... skipEncode) { |
| if (isUrlEncoded(in)) |
| return in; |
| try { |
| String returnVal = URLEncoder.encode(in, "UTF-8"); |
| returnVal = Strings2.replaceAll(returnVal, '+', PLUS_PATTERN, "%20"); |
| returnVal = Strings2.replaceAll(returnVal, '*', STAR_PATTERN, "%2A"); |
| returnVal = Strings2.replaceAll(returnVal, _7E_PATTERN, "~"); |
| for (char c : skipEncode) { |
| returnVal = Strings2.replaceAll(returnVal, CHAR_TO_ENCODED_PATTERN.get(c), c + ""); |
| } |
| return returnVal; |
| } catch (UnsupportedEncodingException e) { |
| throw new IllegalStateException("Bad encoding on input: " + in, e); |
| } catch (ExecutionException e) { |
| throw new IllegalStateException("error creating pattern: " + in, e); |
| } |
| } |
| |
| public static boolean isUrlEncoded(String in) { |
| return URL_ENCODED_PATTERN.matcher(in).matches(); |
| } |
| |
| public static String urlDecode(String in) { |
| try { |
| return URLDecoder.decode(in, "UTF-8"); |
| } catch (UnsupportedEncodingException e) { |
| throw new IllegalStateException("Bad encoding on input: " + in, e); |
| } |
| } |
| |
| public static String replaceTokens(String value, Iterable<Entry<String, String>> tokenValues) { |
| for (Entry<String, String> tokenValue : tokenValues) { |
| try { |
| value = Strings2.replaceAll(value, TOKEN_TO_PATTERN.get(tokenValue.getKey()), tokenValue.getValue()); |
| } catch (ExecutionException e) { |
| throw new IllegalStateException("error creating pattern: " + tokenValue.getKey(), e); |
| } |
| } |
| return value; |
| } |
| |
| public static String replaceAll(String returnVal, Pattern pattern, String replace) { |
| Matcher m = pattern.matcher(returnVal); |
| returnVal = m.replaceAll(replace); |
| return returnVal; |
| } |
| |
| public static String replaceAll(String input, char ifMatch, Pattern pattern, String replacement) { |
| if (input.indexOf(ifMatch) != -1) { |
| input = pattern.matcher(input).replaceAll(replacement); |
| } |
| return input; |
| } |
| |
| public static String replaceAll(String input, char match, String replacement) { |
| if (input.indexOf(match) != -1) { |
| try { |
| input = CHAR_TO_PATTERN.get(match).matcher(input).replaceAll(replacement); |
| } catch (ExecutionException e) { |
| throw new IllegalStateException("error creating pattern: " + match, e); |
| } |
| } |
| return input; |
| } |
| |
| public static String toString(InputSupplier<? extends InputStream> supplier) |
| throws IOException { |
| return CharStreams.toString(CharStreams.newReaderSupplier(supplier, |
| Charsets.UTF_8)); |
| } |
| |
| public static String toStringAndClose(InputStream input) throws IOException { |
| checkNotNull(input, "input"); |
| try { |
| return new String(toByteArray(input), Charsets.UTF_8); |
| } catch (IOException e) { |
| logger.warn(e, "Failed to read from stream"); |
| return null; |
| } catch (NullPointerException e) { |
| return null; |
| } finally { |
| closeQuietly(input); |
| } |
| } |
| |
| public static InputStream toInputStream(String in) { |
| return new ByteArrayInputStream(in.getBytes(Charsets.UTF_8)); |
| } |
| |
| @Resource |
| private static Logger logger = Logger.NULL; |
| |
| /** |
| * replaces tokens that are expressed as <code>{token}</code> |
| * |
| * <p/> |
| * ex. if input is "hello {where}"<br/> |
| * and replacements is "where" -> "world" <br/> |
| * then replaceTokens returns "hello world" |
| * |
| * @param input |
| * source to replace |
| * @param replacements |
| * token/value pairs |
| */ |
| public static String replaceTokens(String input, Map<String, String> replacements) { |
| Matcher matcher = Patterns.TOKEN_PATTERN.matcher(input); |
| StringBuilder builder = new StringBuilder(); |
| int i = 0; |
| while (matcher.find()) { |
| String replacement = replacements.get(matcher.group(1)); |
| builder.append(input.substring(i, matcher.start())); |
| if (replacement == null) |
| builder.append(matcher.group(0)); |
| else |
| builder.append(replacement); |
| i = matcher.end(); |
| } |
| builder.append(input.substring(i, input.length())); |
| return builder.toString(); |
| } |
| |
| } |