org.jdbcluster.privilege.PrivilegeConfigImpl.java Source code

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Here is the source code for org.jdbcluster.privilege.PrivilegeConfigImpl.java

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/*
 * Copyright 2002-2005 the original author or authors.
 * 
 * Licensed 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.jdbcluster.privilege;

import org.dom4j.DocumentException;
import org.dom4j.Node;
import org.jdbcluster.JDBClusterConfigurationBase;

/**
 * class PrivilegeConfigImpl is an implementation of PrivilegeConfig.
 * It saves the location of the configuration file and
 * exexutes some queries on that XML file.
 * @author FaKod
 *
 */
public class PrivilegeConfigImpl extends JDBClusterConfigurationBase implements PrivilegeConfig {

    /**
     * Default constructor
     *
     */
    public PrivilegeConfigImpl() {
    }

    /**
     * Constructor which sets the config path
     * @param config the configuration to be set
     */
    public PrivilegeConfigImpl(String config) {
        this.setConfiguration(config);
    }

    /**
     * returns the config path
     * @return String
     */
    public String getConfiguration() {
        return configuration;
    }

    /**
     * sets the path, reads out the document and saves it
     * @param configuration the config path
     */
    public void setConfiguration(String configuration) {
        this.configuration = configuration;
        try {
            document = read(configuration);
        } catch (DocumentException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    public String getUserPrivilegeCheckerPath() {

        String xPath = "//jdbcluster/privileges/UserPrivilegeChecker";
        Node node = document.selectSingleNode(xPath);

        if (node == null) {
            return null;
        } else {
            return node.valueOf("@class");
        }
    }
}