com.lowagie.text.xml.xmp.XmpSchema Maven / Gradle / Ivy
/*
* $Id: XmpSchema.java 3543 2008-07-10 17:37:37Z xlv $
*
* Copyright 2005 by Bruno Lowagie.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2005 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000-2005 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU LIBRARY GENERAL PUBLIC LICENSE for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.xml.xmp;
import java.util.Enumeration;
import java.util.Properties;
/**
* Abstract superclass of the XmpSchemas supported by iText.
*/
public abstract class XmpSchema extends Properties {
private static final long serialVersionUID = -176374295948945272L;
/** the namesspace */
protected String xmlns;
/**
* Constructs an XMP schema.
*
* @param xmlns xml namespace name
*/
public XmpSchema(String xmlns) {
super();
this.xmlns = xmlns;
}
/**
* The String representation of the contents.
* @return a String representation.
*/
@Override
public synchronized String toString() {
StringBuffer buf = new StringBuffer();
for (Enumeration e = this.propertyNames(); e.hasMoreElements(); ) {
process(buf, e.nextElement());
}
return buf.toString();
}
/**
* Processes a property
* @param buf buffer
* @param p object
*/
protected void process(StringBuffer buf, Object p) {
buf.append('<');
buf.append(p);
buf.append('>');
buf.append(this.get(p));
buf.append("');
}
/**
* @return Returns the xmlns.
*/
public String getXmlns() {
return xmlns;
}
/**
* @param key property key
* @param value value
* @return the previous property (null if there wasn't one)
*/
public Object addProperty(String key, String value) {
return this.setProperty(key, value);
}
/**
* @see java.util.Properties#setProperty(java.lang.String, java.lang.String)
*/
@Override
public synchronized Object setProperty(String key, String value) {
return super.setProperty(key, escape(value));
}
/**
* @see java.util.Properties#setProperty(java.lang.String, java.lang.String)
*
* @param key used as key
* @param value toString called on this value
* @return the previous property (null if there wasn't one)
*/
public Object setProperty(String key, XmpArray value) {
return super.setProperty(key, value.toString());
}
/**
* @see java.util.Properties#setProperty(java.lang.String, java.lang.String)
*
* @param key used as key
* @param value toString called on this value
* @return the previous property (null if there wasn't one)
*/
public Object setProperty(String key, LangAlt value) {
return super.setProperty(key, value.toString());
}
/**
* @param content content
* @return an escaped string
*/
public static String escape(String content) {
StringBuilder buf = new StringBuilder();
for (int i = 0; i < content.length(); i++) {
switch(content.charAt(i)) {
case '<':
buf.append("<");
break;
case '>':
buf.append(">");
break;
case '\'':
buf.append("'");
break;
case '\"':
buf.append(""");
break;
case '&':
buf.append("&");
break;
default:
buf.append(content.charAt(i));
}
}
return buf.toString();
}
}