outputpropertiesfactory.java

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            {
                if (null == m_xml_properties) // double check
                {
                    fileName = PROP_FILE_XML;
                    m_xml_properties = loadPropertiesFile(fileName, null);
                }
            }

            if (method.equals(Method.XML))
            {
                defaultProperties = m_xml_properties;
            }
            else if (method.equals(Method.HTML))
            {
                if (null == m_html_properties) // double check
                {
                    fileName = PROP_FILE_HTML;
                    m_html_properties =
                        loadPropertiesFile(fileName, m_xml_properties);
                }

                defaultProperties = m_html_properties;
            }
            else if (method.equals(Method.TEXT))
            {
                if (null == m_text_properties) // double check
                {
                    fileName = PROP_FILE_TEXT;
                    m_text_properties =
                        loadPropertiesFile(fileName, m_xml_properties);
                    if (null
                        == m_text_properties.getProperty(OutputKeys.ENCODING))
                    {
                        String mimeEncoding = Encodings.getMimeEncoding(null);
                        m_text_properties.put(
                            OutputKeys.ENCODING,
                            mimeEncoding);
                    }
                }

                defaultProperties = m_text_properties;
            }
            else if (method.equals(com.sun.org.apache.xml.internal.serializer.Method.UNKNOWN))
            {
                if (null == m_unknown_properties) // double check
                {
                    fileName = PROP_FILE_UNKNOWN;
                    m_unknown_properties =
                        loadPropertiesFile(fileName, m_xml_properties);
                }

                defaultProperties = m_unknown_properties;
            }
            else
            {
                // TODO: Calculate res file from name.
                defaultProperties = m_xml_properties;
            }
        }
        catch (IOException ioe)
        {
            throw new WrappedRuntimeException(
                Utils.messages.createMessage(
                    MsgKey.ER_COULD_NOT_LOAD_METHOD_PROPERTY,
                    new Object[] { fileName, method }),
                ioe);
        }
        // wrap these cached defaultProperties in a new Property object just so
        // that the caller of this method can't modify the default values
        return new Properties(defaultProperties);
    }

    /**
     * Load the properties file from a resource stream.  If a
     * key name such as "org.apache.xslt.xxx", fix up the start of
     * string to be a curly namespace.  If a key name starts with
     * "xslt.output.xxx", clip off "xslt.output.".  If a key name *or* a
     * key value is discovered, check for \u003a in the text, and
     * fix it up to be ":", since earlier versions of the JDK do not
     * handle the escape sequence (at least in key names).
     *
     * @param resourceName non-null reference to resource name.
     * @param defaults Default properties, which may be null.
     */
    static private Properties loadPropertiesFile(
        final String resourceName,
        Properties defaults)
        throws IOException
    {

        // This static method should eventually be moved to a thread-specific class
        // so that we can cache the ContextClassLoader and bottleneck all properties file
        // loading throughout Xalan.

        Properties props = new Properties(defaults);

        InputStream is = null;
        BufferedInputStream bis = null;

        try
        {
            if (ACCESS_CONTROLLER_CLASS != null)
            {
                is = (InputStream) AccessController
                    .doPrivileged(new PrivilegedAction() {
                        public Object run()
                        {
                            return OutputPropertiesFactory.class
                                .getResourceAsStream(resourceName);
                        }
                    });
            }
            else
            {
                // User may be using older JDK ( JDK < 1.2 )
                is = OutputPropertiesFactory.class
                    .getResourceAsStream(resourceName);
            }

            bis = new BufferedInputStream(is);
            props.load(bis);
        }
        catch (IOException ioe)
        {
            if (defaults == null)
            {
                throw ioe;
            }
            else
            {
                throw new WrappedRuntimeException(
                    Utils.messages.createMessage(
                        MsgKey.ER_COULD_NOT_LOAD_RESOURCE,
                        new Object[] { resourceName }),
                    ioe);
                //"Could not load '"+resourceName+"' (check CLASSPATH), now using just the defaults ", ioe);
            }
        }
        catch (SecurityException se)
        {
            // Repeat IOException handling for sandbox/applet case -sc
            if (defaults == null)
            {
                throw se;
            }
            else
            {
                throw new WrappedRuntimeException(
                    Utils.messages.createMessage(
                        MsgKey.ER_COULD_NOT_LOAD_RESOURCE,
                        new Object[] { resourceName }),
                    se);
                //"Could not load '"+resourceName+"' (check CLASSPATH, applet security), now using just the defaults ", se);
            }
        }
        finally
        {
            if (bis != null)
            {
                bis.close();
            }
            if (is != null)
            {
                is.close();
            }
        }

        // Note that we're working at the HashTable level here,
        // and not at the Properties level!  This is important
        // because we don't want to modify the default properties.
        // NB: If fixupPropertyString ends up changing the property
        // name or value, we need to remove the old key and re-add
        // with the new key and value.  However, then our Enumeration
        // could lose its place in the HashTable.  So, we first
        // clone the HashTable and enumerate over that since the
        // clone will not change.  When we migrate to Collections,
        // this code should be revisited and cleaned up to use
        // an Iterator which may (or may not) alleviate the need for
        // the clone.  Many thanks to Padraig O'hIceadha
        // <[e-mail]> for finding this problem.  Bugzilla 2000.

        Enumeration keys = ((Properties) props.clone()).keys();
        while (keys.hasMoreElements())
        {
            String key = (String) keys.nextElement();
            // Now check if the given key was specified as a
            // System property. If so, the system property
            // overides the default value in the propery file.
            String value = null;
            try
            {
                value = System.getProperty(key);
            }
            catch (SecurityException se)
            {
                // No-op for sandbox/applet case, leave null -sc
            }
            if (value == null)
                value = (String) props.get(key);

            String newKey = fixupPropertyString(key, true);
            String newValue = null;
            try
            {
                newValue = System.getProperty(newKey);
            }
            catch (SecurityException se)
            {
                // No-op for sandbox/applet case, leave null -sc
            }
            if (newValue == null)
                newValue = fixupPropertyString(value, false);
            else
                newValue = fixupPropertyString(newValue, false);

            if (key != newKey || value != newValue)
            {
                props.remove(key);
                props.put(newKey, newValue);
            }

        }

        return props;
    }

    /**
     * Fix up a string in an output properties file according to
     * the rules of {@link #loadPropertiesFile}.
     *
     * @param s non-null reference to string that may need to be fixed up.
     * @return A new string if fixup occured, otherwise the s argument.
     */
    static private String fixupPropertyString(String s, boolean doClipping)
    {
        int index;
        if (doClipping && s.startsWith(S_XSLT_PREFIX))
        {
            s = s.substring(S_XSLT_PREFIX_LEN);
        }
        if (s.startsWith(S_XALAN_PREFIX))
        {
            s =
                S_BUILTIN_EXTENSIONS_UNIVERSAL
                    + s.substring(S_XALAN_PREFIX_LEN);
        }
        if ((index = s.indexOf("\\u003a")) > 0)
        {
            String temp = s.substring(index + 6);
            s = s.substring(0, index) + ":" + temp;

        }
        return s;
    }

}