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/**
* This file is part of the CRISTAL-iSE kernel.
* Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* http://www.fsf.org/licensing/licenses/lgpl.html
*/
package org.cristalise.kernel.utils;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Properties;
import java.util.StringTokenizer;
public class ObjectProperties extends Properties {
public ObjectProperties() {
}
public ObjectProperties(Properties defaults) {
super(defaults);
}
public String getString(String propName) {
return getString(propName, null);
}
public String getString(String propName, String defaultValue) {
String value = super.getProperty(propName, defaultValue);
if (value!=null) value = value.trim();
return value;
}
/**
* ogattaz proposal
*
* @param propName
* the name of the property
* @return the object value of the property. Returns null if the property
* doesn't exist or if the properties of the gateway is null
*/
public Object getObject(String propName) {
return getObject(propName, null);
}
/**
* ogattaz proposal
*
* @param aPropertyName
* the name of the property
* @param defaultValue
* the default value.
* @return the object value of the property. Returns the default value if the property
* doesn't exist or if the properties of the gateway is null.
* @return
*/
public Object getObject(String propName,
Object defaultValue) {
Object wValue = get(propName);
if (wValue == null) {
return defaultValue;
}
return wValue;
}
/**
* ogattaz proposal
*
* @param propName
* the name of the paroperty
* @return the boolean value of the property. Returns false if the property
* doesn't exist or if the value is not a String or a Boolean
* instance
*/
public boolean getBoolean(String aPropertyName) {
return getBoolean(aPropertyName, Boolean.FALSE);
}
/**
* ogattaz proposal
*
* @param propName
* the name of the parameter stored in the clc file
* @param defaultValue
* the default value
* @return the boolean value of the property. Returns the default value if
* the property doesn't exist or if the value is not a String or a
* Boolean instance
*/
public boolean getBoolean(String aPropertyName,
boolean defaultValue) {
Object wValue = getObject(aPropertyName, Boolean.valueOf(defaultValue));
if (wValue instanceof Boolean) {
return ((Boolean) wValue).booleanValue();
}
if (wValue instanceof String) {
return Boolean.parseBoolean((String) wValue);
}
Logger.error("getBoolean(): unable to retrieve a int value for ["+aPropertyName+"]. Returning default value ["+defaultValue+"]. object found="+wValue);
return defaultValue;
}
/**
* ogattaz proposal
*
* @param propName
* the name of the property
* @return the int value of the property. Returns -1 if the property doesn't
* exist or if the value is not a String or an Integer instance
*/
public int getInt(String aPropertyName) {
return getInt(aPropertyName, -1);
}
/**
* ogattaz proposal
*
* @param propName
* the name of the property
* @param defaultValue
* the default value
* @return the int value of the property. Returns the default vakue if the
* property doesn't exist or if the value is not a String or an
* Integer instance
*/
public int getInt(String aPropertyName, int defaultValue) {
Object wValue = getObject(aPropertyName, Integer.valueOf(defaultValue));
if (wValue instanceof Integer) {
return ((Integer) wValue).intValue();
}
if (wValue instanceof String) {
try {
return Integer.parseInt((String) wValue);
} catch (NumberFormatException ex) { }
}
Logger.error("getInt(): unable to retrieve a int value for ["+aPropertyName+"]. Returning default value ["+defaultValue+"]. object found="+wValue);
return defaultValue;
}
/**
* Allow setting of properties as Objects
*
* @param aPropertyName
* the name of the property
* @param aPropertyValue
*/
public void setProperty(String aPropertyName, Object aPropertyValue) {
put(aPropertyName, aPropertyValue);
}
public void dumpProps(int logLevel) {
Logger.msg(logLevel, "Properties:");
for (Enumeration<?> e = propertyNames(); e.hasMoreElements();) {
String name = (String) e.nextElement();
Object value = getObject(name);
if (value == null)
Logger.msg(" "+name+": null");
else
Logger.msg(" "+name+" ("+getObject(name).getClass().getSimpleName()+"): '"+getObject(name).toString()+"'");
}
}
public Object getInstance(String propName, Object defaultVal) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
Object prop = getObject(propName, defaultVal);
if (prop == null || prop.equals(""))
throw new InstantiationException("Property '"+propName+"' was not defined. Cannot instantiate.");
if (prop instanceof String)
return Class.forName(((String)prop).trim()).newInstance();
return prop;
}
public Object getInstance(String propName) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
return getInstance(propName, null);
}
public ArrayList<?> getInstances(String propName, Object defaultVal) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
Object val = getObject(propName, defaultVal);
if (val == null) return null;
if (val instanceof ArrayList)
return (ArrayList<?>)val;
else if (val instanceof String) {
ArrayList<Object> retArr = new ArrayList<Object>();
StringTokenizer tok = new StringTokenizer((String)val, ",");
while (tok.hasMoreTokens())
retArr.add(getInstance(tok.nextToken()));
return retArr;
}
else {
ArrayList<Object> retArr = new ArrayList<Object>();
retArr.add(val);
return retArr;
}
}
public ArrayList<?> getInstances(String propName) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
return getInstances(propName, null);
}
}
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