org.bedework.synch.SynchXPropValue.java Source code

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Here is the source code for org.bedework.synch.SynchXPropValue.java

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/* ********************************************************************
Licensed to Jasig under one or more contributor license
agreements. See the NOTICE file distributed with this work
for additional information regarding copyright ownership.
Jasig 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.bedework.synch;

import org.bedework.synch.shared.exception.SynchException;

import org.apache.commons.codec.binary.Base64;

import java.io.StringReader;
import java.io.StringWriter;
import java.util.Properties;

/** We encode a number of values as a single x-property by Base 64 encoding
 * the result of the Properties store method
 *
 *   @author Mike Douglass   douglm@rpi.edu
 */
public class SynchXPropValue extends Properties {
    /**
     * @return encoded values
     * @throws SynchException
     */
    public String encode() throws SynchException {
        StringWriter sw = new StringWriter();

        try {
            store(sw, null);

            String s = sw.toString();

            return Base64.encodeBase64String(s.getBytes());
        } catch (Exception t) {
            throw new SynchException(t);
        }
    }

    /**
     * @param val encoded values
     * @throws SynchException
     */
    public void decode(final String val) throws SynchException {
        try {
            StringReader sr = new StringReader(new String(Base64.decodeBase64(val)));

            clear();
            load(sr);
        } catch (Exception t) {
            throw new SynchException(t);
        }
    }
}