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/*
* Bibliothek - DockingFrames
* Library built on Java/Swing, allows the user to "drag and drop"
* panels containing any Swing-Component the developer likes to add.
*
* Copyright (C) 2007 Benjamin Sigg
*
* 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 2.1 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; without 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Benjamin Sigg
* [email protected]
* CH - Switzerland
*/
package bibliothek.util.xml;
/**
* An element that can have some content. The content can be a {@link String},
* byte-array or a primitive value type.
* @author Benjamin Sigg
*
*/
public class XContainer {
/** the value of this container */
private String value = "";
/**
* Creates an independent copy of this container.
* @return the new copy
*/
public XContainer copy(){
XContainer copy = new XContainer();
copy.copy( this );
return copy;
}
/**
* Copies all the settings of original into this container.
* @param original the container to read
*/
protected void copy( XContainer original ){
this.value = original.value;
}
/**
* Sets the exact value that is stored in this container.
* @param value the value that will not be encoded by this method
*/
public void setValue( String value ) {
this.value = value;
}
/**
* Gets the exact value that is stored in this container.
* @return the value that is not encoded
*/
public String getValue() {
return value;
}
/**
* Sets the value of this container.
* @param b the value
*/
public void setByte( byte b ){
value = String.valueOf( b );
}
/**
* Sets the value of this container.
* @param s the value
*/
public void setShort( short s ){
value = String.valueOf( s );
}
/**
* Sets the value of this container.
* @param i the value
*/
public void setInt( int i ){
value = String.valueOf( i );
}
/**
* Sets the value of this container.
* @param l the value
*/
public void setLong( long l ){
value = String.valueOf( l );
}
/**
* Sets the value of this container.
* @param b the value
*/
public void setBoolean( boolean b ){
value = String.valueOf( b );
}
/**
* Sets the value of this container.
* @param c the value
*/
public void setChar( char c ){
value = String.valueOf( c );
}
/**
* Sets the value of this container.
* @param s the value
*/
public void setString( String s ){
if( s == null )
throw new IllegalArgumentException( "value must not be null" );
value = s;
}
/**
* Sets the value of this container.
* @param f the value
*/
public void setFloat( float f ){
value = String.valueOf( f );
}
/**
* Sets the value of this container.
* @param d the value
*/
public void setDouble( double d ){
value = String.valueOf( d );
}
/**
* Sets the value of this container.
* @param bs the value
*/
public void setByteArray( byte[] bs ){
StringBuilder builder = new StringBuilder( bs.length*2 );
for( byte b : bs ){
builder.append( Integer.toHexString( (b >> 4) & 15 ) );
builder.append( Integer.toHexString( b & 15 ));
}
value = builder.toString();
}
/**
* Gets the value of this container as byte.
* @return the value
* @throws XException if value is not a byte
*/
public byte getByte(){
try{
return Byte.parseByte( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as short.
* @return the value
* @throws XException if value is not a short
*/
public short getShort(){
try{
return Short.parseShort( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as integer.
* @return the value
* @throws XException if value is not an integer
*/
public int getInt(){
try{
return Integer.parseInt( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as long.
* @return the value
* @throws XException if value is not a long
*/
public long getLong(){
try{
return Long.parseLong( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as float.
* @return the value
* @throws XException if value is not a float
*/
public float getFloat(){
try{
return Float.parseFloat( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as double.
* @return the value
* @throws XException if value is not a double
*/
public double getDouble(){
try{
return Double.parseDouble( value );
}
catch( NumberFormatException ex ){
throw new XException( ex );
}
}
/**
* Gets the value of this container as character.
* @return the value
* @throws XException if value is not a character
*/
public char getChar(){
if( value.length() != 1 )
throw new XException( "not a character: " + value );
return value.charAt( 0 );
}
/**
* Gets the value of this container as string.
* @return the value
* @throws XException if value is not a string
*/
public String getString(){
return value;
}
/**
* Gets the value of this container as boolean.
* @return the value
* @throws XException if value is not a boolean
*/
public boolean getBoolean(){
String value = this.value.trim().toLowerCase();
if( "true".equals( value ))
return true;
if( "on".equals( value ))
return true;
if( "1".equals( value ))
return true;
if( "yes".equals( value ))
return true;
if( "false".equals( value ))
return false;
if( "off".equals( value ))
return false;
if( "0".equals( value ))
return false;
if( "no".equals( value ))
return false;
throw new XException( "not a boolean: " + value );
}
/**
* Gets the value of this container as byte-array.
* @return the value
* @throws XException if value is not a byte-array
*/
public byte[] getByteArray(){
if( value.length() % 2 != 0 )
throw new XException( "value is not a byte-array: " + value );
byte[] result = new byte[ value.length()/2 ];
for( int i = 0, n = value.length(); i