Java Encode encodedStringToProperties(String theEncodedPropertyString)

Description

encoded String To Properties

License

Open Source License

Parameter

Parameter	Description
theEncodedPropertyString	a parameter

Return

the properties

Declaration

public static Properties encodedStringToProperties(String theEncodedPropertyString) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2006 Sybase, Inc. 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://from   w  w w. jav  a 2s .  com
 *     Sybase, Inc. - initial API and implementation
 *******************************************************************************/

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.util.Properties;

public class Main {
    /**
     * @param theEncodedPropertyString
     * @return the properties
     */
    public static Properties encodedStringToProperties(String theEncodedPropertyString) {
        try {
            return getPropertiesFromEncodedString(theEncodedPropertyString);
        } catch (IOException ee) {
            return null;
        }
    }

    /**
     * @param theEncodedPropertyString
     * @return the properties
     * @throws IOException
     */
    public static Properties getPropertiesFromEncodedString(String theEncodedPropertyString) throws IOException {
        if (theEncodedPropertyString == null)
            return null;
        return (getPropertiesFromString(decodeName(theEncodedPropertyString)));
    }

    /**
     * Methods for creating Properties objects from strings.
     * 
     * Then "Encoded" versions are used on values that are stored into a
     * properties file (think of them as sub-properties). They do the encoding
     * necessary to turn a properties object into a string that has legal
     * "value" syntax (they actually do more than they need to, but its all
     * non-destructive).
     * @param thePropertyString 
     * @return the properties from the string
     * @throws IOException 
     */
    public static Properties getPropertiesFromString(String thePropertyString) throws IOException {
        if (thePropertyString == null)
            return null;
        ByteArrayInputStream in = new ByteArrayInputStream(thePropertyString.getBytes());

        Properties props = new Properties();
        props.load(in); // throws IOException
        in = null;
        return props;
    }

    /**
     * @param theName
     * @return the decoded name
     */
    public static String decodeName(String theName) {
        int theSize = theName.length();
        int kk;
        StringBuffer decoded = new StringBuffer(theSize);
        char ch;

        for (int ii = 0; ii < theSize; ii++) {
            ch = theName.charAt(ii);
            if (ch == '%') {
                ch = theName.charAt(++ii);
                kk = Character.digit(ch, 16);
                kk *= 16;
                ch = theName.charAt(++ii);
                kk += Character.digit(ch, 16);
                decoded.append((char) kk);
            } else {
                decoded.append(ch);
            }
        }

        return decoded.toString();
    }
}

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