| /** |
| * 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. |
| */ |
| package org.apache.karaf.testing; |
| |
| import java.io.BufferedInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.jar.JarInputStream; |
| import java.util.jar.Manifest; |
| |
| /** |
| * Utility class to parse a standard OSGi header with paths. |
| * |
| * @author <a href="mailto:dev@geronimo.apache.org">Apache Geronimo Project</a> |
| * @version $Rev: 786132 $, $Date: 2009-06-18 17:47:58 +0200 (Thu, 18 Jun 2009) $ |
| */ |
| public final class HeaderParser { |
| |
| // Private constructor for static final class |
| private HeaderParser() { |
| } |
| |
| public static InputStream wireTapManifest( InputStream is, Manifest mf ) throws IOException { |
| BufferedInputStream bis = new BufferedInputStream( is, 64 * 1024 ); |
| bis.mark( 64 * 1024 ); |
| JarInputStream jis = new JarInputStream( bis ); |
| mf.getMainAttributes().putAll( jis.getManifest().getMainAttributes() ); |
| mf.getEntries().putAll( jis.getManifest().getEntries() ); |
| bis.reset(); |
| return bis; |
| } |
| |
| /** |
| * Parse a given OSGi header into a list of paths |
| * |
| * @param header the OSGi header to parse |
| * @return the list of paths extracted from this header |
| */ |
| public static List<PathElement> parseHeader(String header) { |
| List<PathElement> elements = new ArrayList<PathElement>(); |
| if (header == null || header.trim().length() == 0) { |
| return elements; |
| } |
| String[] clauses = parseDelimitedString(header, ","); |
| for (String clause : clauses) { |
| String[] tokens = clause.split(";"); |
| if (tokens.length < 1) { |
| throw new IllegalArgumentException("Invalid header clause: " + clause); |
| } |
| PathElement elem = new PathElement(tokens[0].trim()); |
| elements.add(elem); |
| for (int i = 1; i < tokens.length; i++) { |
| int pos = tokens[i].indexOf('='); |
| if (pos != -1) { |
| if (pos > 0 && tokens[i].charAt(pos - 1) == ':') { |
| String name = tokens[i].substring(0, pos - 1).trim(); |
| String value = tokens[i].substring(pos + 1).trim(); |
| if (value.startsWith("\"") && value.endsWith("\"")) { |
| value = value.substring(1, value.length() - 1); |
| } |
| elem.addDirective(name, value); |
| } else { |
| String name = tokens[i].substring(0, pos).trim(); |
| String value = tokens[i].substring(pos + 1).trim(); |
| if (value.startsWith("\"") && value.endsWith("\"")) { |
| value = value.substring(1, value.length() - 1); |
| } |
| elem.addAttribute(name, value); |
| } |
| } else { |
| elem = new PathElement(tokens[i].trim()); |
| elements.add(elem); |
| } |
| } |
| } |
| return elements; |
| } |
| |
| /** |
| * Parses delimited string and returns an array containing the tokens. This |
| * parser obeys quotes, so the delimiter character will be ignored if it is |
| * inside of a quote. This method assumes that the quote character is not |
| * included in the set of delimiter characters. |
| * @param value the delimited string to parse. |
| * @param delim the characters delimiting the tokens. |
| * @return an array of string tokens or null if there were no tokens. |
| **/ |
| public static String[] parseDelimitedString(String value, String delim) |
| { |
| if (value == null) |
| { |
| value = ""; |
| } |
| |
| List list = new ArrayList(); |
| |
| int CHAR = 1; |
| int DELIMITER = 2; |
| int STARTQUOTE = 4; |
| int ENDQUOTE = 8; |
| |
| StringBuffer sb = new StringBuffer(); |
| |
| int expecting = (CHAR | DELIMITER | STARTQUOTE); |
| |
| for (int i = 0; i < value.length(); i++) |
| { |
| char c = value.charAt(i); |
| |
| boolean isDelimiter = (delim.indexOf(c) >= 0); |
| boolean isQuote = (c == '"'); |
| |
| if (isDelimiter && ((expecting & DELIMITER) > 0)) |
| { |
| list.add(sb.toString().trim()); |
| sb.delete(0, sb.length()); |
| expecting = (CHAR | DELIMITER | STARTQUOTE); |
| } |
| else if (isQuote && ((expecting & STARTQUOTE) > 0)) |
| { |
| sb.append(c); |
| expecting = CHAR | ENDQUOTE; |
| } |
| else if (isQuote && ((expecting & ENDQUOTE) > 0)) |
| { |
| sb.append(c); |
| expecting = (CHAR | STARTQUOTE | DELIMITER); |
| } |
| else if ((expecting & CHAR) > 0) |
| { |
| sb.append(c); |
| } |
| else |
| { |
| throw new IllegalArgumentException("Invalid delimited string: " + value); |
| } |
| } |
| |
| if (sb.length() > 0) |
| { |
| list.add(sb.toString().trim()); |
| } |
| |
| return (String[]) list.toArray(new String[list.size()]); |
| } |
| |
| public static class PathElement { |
| |
| private String path; |
| private Map<String, String> attributes; |
| private Map<String, String> directives; |
| |
| public PathElement(String path) { |
| this.path = path; |
| this.attributes = new HashMap<String, String>(); |
| this.directives = new HashMap<String, String>(); |
| } |
| |
| public String getName() { |
| return this.path; |
| } |
| |
| public Map<String, String> getAttributes() { |
| return attributes; |
| } |
| |
| public String getAttribute(String name) { |
| return attributes.get(name); |
| } |
| |
| public void addAttribute(String name, String value) { |
| attributes.put(name, value); |
| } |
| |
| public Map<String, String> getDirectives() { |
| return directives; |
| } |
| |
| public String getDirective(String name) { |
| return directives.get(name); |
| } |
| |
| public void addDirective(String name, String value) { |
| directives.put(name, value); |
| } |
| |
| public String toString() { |
| StringBuilder sb = new StringBuilder(this.path); |
| for (Map.Entry<String,String> directive : this.directives.entrySet()) { |
| sb.append(";").append(directive.getKey()).append(":=").append(directive.getValue()); |
| } |
| for (Map.Entry<String,String> attribute : this.attributes.entrySet()) { |
| sb.append(";").append(attribute.getKey()).append("=").append(attribute.getValue()); |
| } |
| return sb.toString(); |
| } |
| |
| } |
| } |