org.jdbcluster.dao.DaoConfigImpl.java Source code

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Here is the source code for org.jdbcluster.dao.DaoConfigImpl.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.dao;

import java.util.List;

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

/**
 * 
 * @author Christopher Schmidt
 * reads Dao configuration part
 */
public class DaoConfigImpl extends JDBClusterConfigurationBase implements DaoConfig {

    public String getConfiguration() {
        return configuration;
    }

    public void setConfiguration(String configuration) {
        this.configuration = configuration;
        try {
            document = read(configuration);
        } catch (DocumentException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

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

    public String getDaoClass(String daoId) {
        String xPath = "//jdbcluster/daotype/dao[@id='" + daoId + "']";
        Node node = document.selectSingleNode(xPath);

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

    public String getDaoId(String daoClass) {
        String xPath = "//jdbcluster/daotype/dao[@class='" + daoClass + "']";
        Node node = document.selectSingleNode(xPath);

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

    @SuppressWarnings("unchecked")
    public String[] getPropertyName(String daoId) {
        String xPath = "//jdbcluster/daotype/dao[@id='" + daoId + "']/property";
        List<Node> nodes = document.selectNodes(xPath);

        if (nodes == null) {
            return null;
        }

        String[] res = new String[nodes.size()];
        int i = 0;
        for (Node n : nodes) {
            res[i++] = n.valueOf("@name");
        }
        return res;
    }

    public String getPropertieValue(String daoId, String Property) {
        String xPath = "//jdbcluster/daotype/dao[@id='" + daoId + "']/property[@name='" + Property + "']/value";
        Node node = document.selectSingleNode(xPath);

        if (node == null) {
            return null;
        } else {
            return node.getStringValue();
        }
    }

    public String getPropertyClass(String daoId, String Property) {
        String xPath = "//jdbcluster/daotype/dao[@id='" + daoId + "']/property[@name='" + Property + "']";
        Node node = document.selectSingleNode(xPath);

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