| /******************************************************************************* |
| * Copyright (c) 2007 IBM Corporation and Others |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Hisashi MIYASHITA - initial API and implementation |
| * Kentarou FUKUDA - initinal API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.actf.model.flash.as; |
| |
| /** |
| * Utility class for serializing Java objects to ActionScript style string. |
| * |
| * @see ASDeserializer |
| */ |
| public class ASSerializer { |
| /** |
| * Escape a given {@link String}. Especially it escapes double quotation |
| * and back slash characters and convert to ActionScript style String |
| * literal by prepending and appending double quotations . |
| * |
| * @param str |
| * A {@link String} to be escaped |
| * @return Escaped {@link String} literal expression |
| */ |
| public static String serialize(String str) { |
| if ((str.indexOf('"') >= 0) || (str.indexOf('\\') >= 0)) { |
| StringBuffer ret = new StringBuffer('"'); |
| for (int i = 0; i < str.length(); i++) { |
| char ch = str.charAt(i); |
| switch (ch) { |
| case '"': |
| ret.append("\\\""); |
| break; |
| case '\\': |
| ret.append("\\\\"); |
| break; |
| default: |
| ret.append(ch); |
| } |
| } |
| ret.append('"'); |
| return ret.toString(); |
| } else { |
| return "\"" + str + "\""; |
| } |
| } |
| |
| /** |
| * Serializes given Java {@link Object} to a {@link String}. It serializes |
| * objects of type {@link String}, {@link Number}, and {@link Boolean}. |
| * |
| * @param a |
| * Java {@link Object} to be serialized |
| * @return Serialized {@link String} |
| */ |
| private static String serialize(Object a) { |
| if (a instanceof String) { |
| return serialize((String) a); |
| } else if (a instanceof Number) { |
| return a.toString(); |
| } else if (a instanceof Boolean) { |
| return a.toString(); |
| } else if (a instanceof Object[]) { |
| StringBuffer ret = new StringBuffer(); |
| for (Object tmp : (Object[]) a) { |
| ret.append(serialize(tmp)); |
| ret.append(","); |
| } |
| if (ret.length() > 1) { |
| return ret.substring(0, ret.length() - 2); |
| } |
| return ""; |
| } |
| throw new IllegalArgumentException(a + " cannot be serialized."); |
| } |
| |
| /** |
| * Serializes a given secret and a given array of objects to the secret |
| * followed by a ActionScript style {@link String}. The secret is used to |
| * secure communication between a program use this class and a browser |
| * component. |
| * |
| * @param secret |
| * Secret {@link String} |
| * @param args |
| * Array of {@link Object}s |
| * |
| * @return Serialized {@link String} |
| */ |
| public static String serialize(String secret, Object[] args) { |
| StringBuffer ret = new StringBuffer(secret); |
| ret.append('['); |
| if (args.length > 0) { |
| ret.append(serialize(args[0])); |
| for (int i = 1; i < args.length; i++) { |
| ret.append(","); |
| Object a = args[i]; |
| ret.append(serialize(a)); |
| } |
| } |
| ret.append("]"); |
| return ret.toString(); |
| } |
| |
| } |