org.pentaho.platform.config.SystemSettingsConfiguration.java Source code

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Here is the source code for org.pentaho.platform.config.SystemSettingsConfiguration.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 (c) 2002-2018 Hitachi Vantara. All rights reserved.
 *
 */

package org.pentaho.platform.config;

import org.dom4j.Element;
import org.dom4j.Node;
import org.apache.commons.lang.StringUtils;
import org.pentaho.platform.api.engine.IConfiguration;
import org.pentaho.platform.api.engine.ISystemSettings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.List;
import java.util.Properties;

/**
 * User: nbaker Date: 4/2/13
 */
public class SystemSettingsConfiguration implements IConfiguration {
    private String id;
    private Logger logger = LoggerFactory.getLogger(getClass());
    private ISystemSettings settings;

    public SystemSettingsConfiguration(String id, ISystemSettings settings) {
        if (id == null) {
            throw new IllegalArgumentException("id cannot be null");
        }
        if (settings == null) {
            throw new IllegalArgumentException("SystemSettings is null");
        }
        this.id = id;
        this.settings = settings;
    }

    @Override
    public String getId() {
        return "system";
    }

    @Override
    public Properties getProperties() throws IOException {
        Properties props = new Properties();
        List elements = settings.getSystemSettings("pentaho-system");
        if (elements == null) {
            return null;
        }
        elements = ((Element) elements.get(0)).content();
        addElementsToProperties(elements, props, "");

        return props;
    }

    private void addElementsToProperties(List elements, Properties props, String parentPath) {

        for (java.lang.Object o : elements) {
            Node ele = (Node) o;
            if (ele.getNodeType() != 1) { // text
                continue;
            }
            String contents = ele.getText().trim();

            String newParentPath = "";

            if (!StringUtils.isEmpty(parentPath)) {
                newParentPath = parentPath + ".";
            }
            newParentPath += ele.getName();

            if (!StringUtils.isEmpty(contents)) {
                props.setProperty(newParentPath, contents);
            }
            if (ele instanceof Element) {
                List children = ((Element) ele).content();

                addElementsToProperties(children, props, newParentPath);
            }

        }
    }

    @Override
    public void update(Properties properties) throws IOException {
        throw new UnsupportedOperationException("SystemSettings does not support write-back");
    }
}