Mercurial > projects > dwt2
diff org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/conversion/StringToCharacterConverter.d @ 78:0a55d2d5a946
Added file for databinding
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 14 Apr 2009 11:35:29 +0200 |
parents | |
children | 6be48cf9f95c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/conversion/StringToCharacterConverter.d Tue Apr 14 11:35:29 2009 +0200 @@ -0,0 +1,83 @@ +/* + * Copyright cast(C) 2005 db4objects Inc. http://www.db4o.com + * + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * db4objects - Initial API and implementation + * Matt Carter - Improved primitive conversion support (bug 197679) + */ +module org.eclipse.core.internal.databinding.conversion.StringToCharacterConverter; + +import java.lang.all; + +import org.eclipse.core.databinding.conversion.IConverter; + +/** + * StringToCharacterConverter. + */ +public class StringToCharacterConverter : IConverter { + + private final bool primitiveTarget; + + /** + * + * @param primitiveTarget + */ + public this(bool primitiveTarget) { + this.primitiveTarget = primitiveTarget; + } + + /* + * (non-Javadoc) + * + * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object) + */ + public Object convert(Object source) { + if (source !is null && !( null !is cast(String)source )) + throw new IllegalArgumentException( + "String2Character: Expected type String, got type [" + source.getClass().getName() + "]"); //$NON-NLS-1$ //$NON-NLS-2$ + + String s = cast(String) source; + if (source is null || s.equals("")) { //$NON-NLS-1$ + if (primitiveTarget) + throw new IllegalArgumentException( + "String2Character: cannot convert null/empty string to character primitive"); //$NON-NLS-1$ + return null; + } + Character result; + + if (s.length() > 1) + throw new IllegalArgumentException( + "String2Character: string too long: " + s); //$NON-NLS-1$ + + try { + result = new Character(s.charAt(0)); + } catch (Exception e) { + throw new IllegalArgumentException( + "String2Character: " + e.getMessage() + ": " + s); //$NON-NLS-1$ //$NON-NLS-2$ + } + + return result; + } + + public Object getFromType() { + return String.classinfo; + } + + public Object getToType() { + return primitiveTarget ? Character.TYPE : Character.classinfo; + } + + /** + * @param primitive + * @return converter + */ + public static StringToCharacterConverter toCharacter(bool primitive) { + return new StringToCharacterConverter(primitive); + } + +}