com.ngcomp.cloud.broker.util.PropUtils.java Source code

Introduction

Here is the source code for com.ngcomp.cloud.broker.util.PropUtils.java

Source

//////////////////////////////////////////////////////////////////////////////
// Author:: Ram Parashar (ramp@ngcomp.org>)
//
// Copyright 2012, Next Generation Computing.
//
// 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 com.ngcomp.cloud.broker.util;

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

import org.apache.commons.io.IOUtils;

/**
 * 
 * @author rparashar
 *
 */
public class PropUtils {

    private static PropUtils instance;

    private Properties props;

    public static void init(String configFilePath) throws IOException {
        PropUtils.instance = new PropUtils(configFilePath);
    }

    /**
     * 
     * @throws IOException
     */
    private PropUtils(String configFilePath) throws IOException {
        Properties p = new Properties();
        FileInputStream in = null;
        try {
            in = new FileInputStream(configFilePath);
            p.load(in);
        } finally {
            IOUtils.closeQuietly(in);
        }
        this.props = p;
    }

    /**
     * 
     * @return
     * @throws IOException
     */
    public static PropUtils getInstance() {
        return PropUtils.instance;
    }

    /**
     * 
     * @param prop
     * @param defaultVal
     * @return
     */
    public Object getVal(String prop, String defaultVal) {
        if (this.props.containsKey(prop)) {
            return this.props.getProperty(prop, defaultVal).trim();
        } else {
            return defaultVal;
        }
    }

    /**
     * 
     * @param prop
     * @return
     */
    public Object getVal(String prop) {
        if (this.props.containsKey(prop)) {
            return this.props.getProperty(prop).trim();
        } else {
            return null;
        }
    }
}