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/*
+---------------------------------------------------------------------------+
| Facebook Development Platform Java Client |
+---------------------------------------------------------------------------+
| Copyright (c) 2007-2008 Facebook, Inc. |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+---------------------------------------------------------------------------+
| For help with this library, contact [email protected] |
+---------------------------------------------------------------------------+
*/
package com.google.code.facebookapi;
import java.io.Serializable;
import java.util.Map;
import java.util.TreeMap;
import org.json.JSONObject;
/**
* This utility represents a set of application properties for use in the facebook.admin_setApplicatoinProperty API call.
*/
@SuppressWarnings("serial")
public class ApplicationPropertySet implements Serializable {
private Map _attributesBool;
private Map _attributesString;
public ApplicationPropertySet() {
// empty
}
/**
* Initialize the ApplicationPropertySet mapping from its JSON representation
*
* @param jsonString
* JSON representing the application properties
* @throws ClassCastException
* if the JSON-encoded mapping doesn't conform to expectations
*/
public ApplicationPropertySet( String jsonString ) throws ClassCastException {
Map mappings = parseProperties( jsonString );
for ( Map.Entry entry : mappings.entrySet() ) {
ApplicationProperty prop = entry.getKey();
String value = entry.getValue();
if ( prop.isBooleanProperty() ) {
setBoolProperty( prop, "1".equals( value ) );
} else if ( prop.isStringProperty() ) {
setStringProperty( prop, value );
}
}
}
/**
* Sets a boolean property value.
*
* @param prop
* the property to set, it should be of boolean type.
* @param value
* the value to set.
*/
public void setBoolProperty( ApplicationProperty prop, boolean value ) {
if ( null == prop || !prop.isBooleanProperty() ) {
throw new IllegalArgumentException( "Boolean property expected" );
}
if ( null == _attributesBool ) {
_attributesBool = new TreeMap();
}
_attributesBool.put( prop, value );
}
/**
* Gets a boolean property value.
*
* @param prop
* the property to get, it should be of boolean type.
*
* @return the value of the property.
*/
public Boolean getBoolProperty( ApplicationProperty prop ) {
if ( null == prop || !prop.isBooleanProperty() ) {
throw new IllegalArgumentException( "Boolean property expected" );
}
return ( null == _attributesBool ) ? null : _attributesBool.get( prop );
}
/**
* Sets a String property value.
*
* @param prop
* the property to set, it should be of String type.
* @param value
* the value to set.
*/
public void setStringProperty( ApplicationProperty prop, String value ) {
if ( null == prop || !prop.isStringProperty() ) {
throw new IllegalArgumentException( "String property expected" );
}
if ( null == _attributesString ) {
_attributesString = new TreeMap();
}
_attributesString.put( prop, value );
}
/**
* Gets a String property value.
*
* @param prop
* the property to get, it should be of String type.
*
* @return the value of the property.
*/
public String getStringProperty( ApplicationProperty prop ) {
if ( null == prop || !prop.isStringProperty() ) {
throw new IllegalArgumentException( "String property expected" );
}
return ( null == _attributesString ) ? null : _attributesString.get( prop );
}
/**
* Remove a property from the set.
*
* @param prop
* the property to remove.
*/
public void removeProperty( ApplicationProperty prop ) {
if ( prop.isBooleanProperty() ) {
_attributesBool.remove( prop );
} else if ( prop.isStringProperty() ) {
_attributesString.remove( prop );
}
}
/**
* @return true if this set is empty false otherwise
*/
public boolean isEmpty() {
return ( null == _attributesString || _attributesString.isEmpty() ) && ( null == _attributesBool || _attributesBool.isEmpty() );
}
/**
* Return a JSON representation of this property set object
*
* @return JSONObject
*/
public JSONObject jsonify() {
JSONObject ret = new JSONObject();
if ( null != _attributesString ) {
for ( Map.Entry entry : _attributesString.entrySet() ) {
try {
ret.put( entry.getKey().propertyName(), entry.getValue().toString() );
}
catch ( Exception ignored ) {
// ignore
}
}
}
if ( null != _attributesBool ) {
for ( Map.Entry entry : _attributesBool.entrySet() ) {
try {
ret.put( entry.getKey().propertyName(), entry.getValue() );
}
catch ( Exception ignored ) {
// ignore
}
}
}
return ret;
}
/**
* Return a JSON string representation of this object
*
* @return a JSON string
*/
public String toJsonString() {
return jsonify().toString();
}
public static Map parseProperties( String json ) {
Map result = new TreeMap();
if ( json == null ) {
return result;
}
if ( json.matches( "\\{.*\\}" ) ) {
json = json.substring( 1, json.lastIndexOf( "}" ) );
} else {
json = json.substring( 1, json.lastIndexOf( "]" ) );
}
String[] parts = json.split( "\\," );
for ( String part : parts ) {
parseFragment( part, result );
}
return result;
}
private static void parseFragment( String fragment, Map result ) {
if ( fragment.startsWith( "{" ) ) {
fragment = fragment.substring( 1, fragment.lastIndexOf( "}" ) );
}
String keyString = fragment.substring( 1 );
keyString = keyString.substring( 0, keyString.indexOf( '"' ) );
ApplicationProperty key = ApplicationProperty.getPropertyForString( keyString );
String value = fragment.substring( fragment.indexOf( ":" ) + 1 ).replaceAll( "\\\\", "" ); // strip escape characters
if ( key.getType().equals( "string" ) ) {
result.put( key, value.substring( 1, value.lastIndexOf( '"' ) ) );
} else {
if ( value.equals( "1" ) ) {
result.put( key, "true" );
} else {
result.put( key, "false" );
}
}
}
}
