com.glaf.core.config.CustomProperties.java Source code

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Here is the source code for com.glaf.core.config.CustomProperties.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 com.glaf.core.config;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.Properties;
import java.util.concurrent.atomic.AtomicBoolean;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.glaf.core.util.IOUtils;
import com.glaf.core.util.PropertiesUtils;

public class CustomProperties {

    protected static final Log logger = LogFactory.getLog(CustomProperties.class);

    private static volatile Properties properties = new Properties();

    protected static AtomicBoolean loading = new AtomicBoolean(false);

    static {
        try {
            reload();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static boolean eq(String key, String value) {
        if (key != null && value != null) {
            String x = properties.getProperty(key);
            if (StringUtils.equals(value, x)) {
                return true;
            }
        }
        return false;
    }

    public static boolean getBoolean(String key) {
        if (hasObject(key)) {
            String value = properties.getProperty(key);
            return Boolean.valueOf(value).booleanValue();
        }
        return false;
    }

    public static double getDouble(String key) {
        if (hasObject(key)) {
            String value = properties.getProperty(key);
            return Double.parseDouble(value);
        }
        return 0;
    }

    public static int getInt(String key) {
        if (hasObject(key)) {
            String value = properties.getProperty(key);
            return Integer.parseInt(value);
        }
        return 0;
    }

    public static long getLong(String key) {
        if (hasObject(key)) {
            String value = properties.getProperty(key);
            return Long.parseLong(value);
        }
        return 0;
    }

    public static Properties getProperties() {
        Properties p = new Properties();
        Enumeration<?> e = properties.keys();
        while (e.hasMoreElements()) {
            String key = (String) e.nextElement();
            String value = properties.getProperty(key);
            p.put(key, value);
        }
        return p;
    }

    public static String getString(String key) {
        if (hasObject(key)) {
            String value = properties.getProperty(key);
            if (value == null) {
                value = properties.getProperty(key.toUpperCase());
            }
            return value;
        }
        return null;
    }

    public static boolean hasObject(String key) {
        if (properties == null || key == null) {
            return false;
        }
        String value = properties.getProperty(key);
        if (value != null) {
            return true;
        }
        return false;
    }

    public static void reload() {
        if (!loading.get()) {
            InputStream inputStream = null;
            try {
                loading.set(true);
                String config = SystemProperties.getConfigRootPath() + "/conf/props";
                logger.debug(config);
                File directory = new File(config);
                if (directory.exists()) {
                    String[] filelist = directory.list();
                    if (filelist != null) {
                        for (int i = 0, len = filelist.length; i < len; i++) {
                            String filename = config + "/" + filelist[i];
                            logger.debug(filename);
                            File file = new File(filename);
                            if (file.isFile() && file.getName().endsWith(".properties")) {
                                logger.info("load properties:" + file.getAbsolutePath());
                                inputStream = new FileInputStream(file);
                                Properties p = PropertiesUtils.loadProperties(inputStream);
                                if (p != null) {
                                    Enumeration<?> e = p.keys();
                                    while (e.hasMoreElements()) {
                                        String key = (String) e.nextElement();
                                        String value = p.getProperty(key);
                                        properties.setProperty(key, value);
                                        properties.setProperty(key.toLowerCase(), value);
                                        properties.setProperty(key.toUpperCase(), value);
                                    }
                                }
                                IOUtils.closeStream(inputStream);
                            }
                        }
                    }
                }
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            } finally {
                loading.set(false);
                IOUtils.closeStream(inputStream);
            }
        }
    }

    private CustomProperties() {

    }

}