filepropenvsettings.java

JRemoteControl is a simple Java&#8482 driven bluetooth remote control.It allows you to initiate virt

/*
 * JRemCntl - Copyright (C) 2007 Filippo Di Vattimo <[e-mail]>
 * See COPYING
 */

package fildiv.jremcntl.server.core;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

import fildiv.jremcntl.common.core.JRemRuntimeException;
import fildiv.jremcntl.common.util.JRemUtils;

public class FilePropEnvSettings implements Settings {
	
	private Properties p = null;
	private String propFilePath = null;
	private String propDescription = null;

	public FilePropEnvSettings(String propFilePath, String configName) {
	
		if (propFilePath == null)
			throw new IllegalArgumentException();
		
		this.propFilePath = propFilePath;
		this.propDescription = JRemUtils.safeString(configName);
		
		p = new Properties();
		
		InputStream is = null;
		
		try {
			is = new FileInputStream(propFilePath);
			
			p.load(is);
			
		} catch(Exception e) {
			throw new JRemRuntimeException("Unable to load : " + propFilePath, e);
		} finally {
			try {
				if (is != null)
					is.close();
			} catch (IOException e) {
				//Ignored
			}			
		}
	}

	private boolean toBoolean(String value) {

		if ("true".compareToIgnoreCase(value) == 0)
			return true;
		
		if ("false".compareToIgnoreCase(value) == 0)
			return false;
		
		int intValue = Integer.parseInt(value);

		return intValue != 0;
	}

	private long toNumber(String value) {
		return Long.parseLong(value);
	}

	private String toString(boolean value) {
		return value ? "true" : "false";
	}

	private String toString(long value) {
		return String.valueOf(value);
	}
	
	private boolean isEmpty(String value) {
		return JRemUtils.isEmptyString(value);
	}
	
	public boolean getBooleanValue(String propName) {
		String value = p.getProperty(propName);
		
		return toBoolean(value);
	}

	public boolean getBooleanValue(String propName, boolean defValue) {

		String value = p.getProperty(propName);
		if (isEmpty(value))
			return defValue;

		return toBoolean(value);
	}

	public long getNumberValue(String propName) {
		String value = p.getProperty(propName);

		return toNumber(value);
	}

	public long getNumberValue(String propName, int defValue) {

		String value = p.getProperty(propName);
		if (isEmpty(value))
			return defValue;

		return toNumber(value);
	}

	public String getStringValue(String propName) {
		String value = p.getProperty(propName);
		return value;
	}

	public String getStringValue(String propName, String defValue) {

		String value = p.getProperty(propName);
		if (isEmpty(value))
			return defValue;
		
		return value;
	}
	
	public void setBooleanValue(String propName, boolean value) {

		p.setProperty(propName, toString(value));
		
	}

	public void setNumberValue(String propName, int value) {

		p.setProperty(propName, toString(value));		
	}

	public void setStringValue(String propName, String value) {

		p.setProperty(propName, value);		
	}

	public void store() {

		OutputStream fo = null;
		
		try {
		
			File f = new File(propFilePath);
			fo = new FileOutputStream(f);
			p.store(fo, propDescription);
			
		} catch (Exception e) {
			throw new JRemRuntimeException(e);
			
		} finally {
			
				if (fo != null) {
					try {
						fo.close();
					} catch (IOException e) {
						// Ignored
					}
				}
		}
	} 
}