org.pentaho.pac.server.config.HibernateConfigXml.java Source code

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Here is the source code for org.pentaho.pac.server.config.HibernateConfigXml.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright 2008 - 2009 Pentaho Corporation.  All rights reserved.
*/
package org.pentaho.pac.server.config;

import java.io.File;
import java.io.IOException;
import java.io.Serializable;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.pentaho.pac.common.config.IHibernateConfig;
import org.pentaho.pac.server.common.util.DtdEntityResolver;
import org.pentaho.platform.api.util.XmlParseException;
import org.pentaho.platform.engine.security.userroledao.messages.Messages;
import org.pentaho.platform.util.xml.dom4j.XmlDom4JHelper;

public class HibernateConfigXml implements Serializable, IHibernateConfig {

    private static final String ROOT_ELEMENT = "hibernate-configuration"; //$NON-NLS-1$
    private static final String PASSWORD_XPATH = ROOT_ELEMENT
            + "/session-factory/property[@name='connection.password']"; //$NON-NLS-1$
    private static final String DB_DRIVER_XPATH = ROOT_ELEMENT
            + "/session-factory/property[@name='connection.driver_class']"; //$NON-NLS-1$
    private static final String DB_URL_XPATH = ROOT_ELEMENT + "/session-factory/property[@name='connection.url']"; //$NON-NLS-1$
    private static final String DIALECT_XPATH = ROOT_ELEMENT + "/session-factory/property[@name='dialect']"; //$NON-NLS-1$
    private static final String CONNECTION_POOL_SIZE_XPATH = ROOT_ELEMENT
            + "/session-factory/property[@name='connection.pool_size']"; //$NON-NLS-1$
    private static final String USER_ID_XPATH = ROOT_ELEMENT
            + "/session-factory/property[@name='connection.username']"; //$NON-NLS-1$

    Document document;

    public HibernateConfigXml(File pentahoXmlFile) throws IOException, DocumentException {
        this(XmlDom4JHelper.getDocFromFile(pentahoXmlFile, new DtdEntityResolver()));
    }

    public HibernateConfigXml(String xml) throws DocumentException, XmlParseException {
        this(XmlDom4JHelper.getDocFromString(xml, new DtdEntityResolver()));
    }

    public HibernateConfigXml(Document doc) throws DocumentException {
        Element rootElement = doc.getRootElement();
        if ((rootElement != null) && !doc.getRootElement().getName().equals(ROOT_ELEMENT)) {
            throw new DocumentException(Messages.getErrorString("PentahoXml.ERROR_0001_INVALID_ROOT_ELEMENT")); //$NON-NLS-1$ 
        }
        document = doc;
    }

    public HibernateConfigXml() {
    }

    public HibernateConfigXml(IHibernateConfig hibernateConfig) {
        this();
        setDbDriver(hibernateConfig.getDbDriver());
        setDbUrl(hibernateConfig.getDbUrl());
        setDialect(hibernateConfig.getDialect());
        setPassword(hibernateConfig.getPassword());
        setUserId(hibernateConfig.getUserId());
        setConnectionPoolSize(hibernateConfig.getConnectionPoolSize());
    }

    private void setValue(String xPath, String value) {
        setValue(xPath, value, false);
    }

    private void setValue(String xPath, String value, boolean useCData) {
        Element element = (Element) document.selectSingleNode(xPath);
        if (element == null) {
            element = DocumentHelper.makeElement(document, xPath);
        }
        if (useCData) {
            element.clearContent();
            element.addCDATA(value);
        } else {
            element.setText(value);
        }
    }

    private String getValue(String xpath) {
        Element element = (Element) document.selectSingleNode(xpath);
        return element != null ? element.getText() : null;
    }

    public Document getDocument() {
        return document;
    }

    public String getDbDriver() {
        return getValue(DB_DRIVER_XPATH);
    }

    public void setDbDriver(String driver) {
        setValue(DB_DRIVER_XPATH, driver);
    }

    public String getDbUrl() {
        return getValue(DB_URL_XPATH);
    }

    public void setDbUrl(String url) {
        setValue(DB_URL_XPATH, url);
    }

    public String getDialect() {
        return getValue(DIALECT_XPATH);
    }

    public void setDialect(String dialect) {
        setValue(DIALECT_XPATH, dialect);
    }

    public String getUserId() {
        return getValue(USER_ID_XPATH);
    }

    public void setUserId(String userId) {
        setValue(USER_ID_XPATH, userId);
    }

    public String getPassword() {
        return getValue(PASSWORD_XPATH);
    }

    public void setPassword(String password) {
        setValue(PASSWORD_XPATH, password);
    }

    public Integer getConnectionPoolSize() {
        Integer port = null;
        try {
            port = new Integer(getValue(CONNECTION_POOL_SIZE_XPATH));
        } catch (Exception ex) {
            // Do nothing..
        }
        return port;
    }

    public void setConnectionPoolSize(Integer poolSize) {
        setValue(CONNECTION_POOL_SIZE_XPATH, poolSize != null ? poolSize.toString() : "");
    }
}