| /* |
| * Copyright (C) 2005, 2007 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) |
| */ |
| package org.eclipse.core.internal.databinding.conversion; |
| |
| import org.eclipse.core.databinding.conversion.IConverter; |
| |
| /** |
| * StringToCharacterConverter. |
| */ |
| public class StringToCharacterConverter implements IConverter<Object, Object> { |
| |
| private final boolean primitiveTarget; |
| |
| /** |
| * |
| * @param primitiveTarget |
| */ |
| public StringToCharacterConverter(boolean primitiveTarget) { |
| this.primitiveTarget = primitiveTarget; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object) |
| */ |
| public Object convert(Object source) { |
| if (source != null && !(source instanceof String)) |
| throw new IllegalArgumentException( |
| "String2Character: Expected type String, got type [" + source.getClass().getName() + "]"); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| String s = (String) source; |
| if (source == 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.class; |
| } |
| |
| public Object getToType() { |
| return primitiveTarget ? Character.TYPE : Character.class; |
| } |
| |
| /** |
| * @param primitive |
| * @return converter |
| */ |
| public static StringToCharacterConverter toCharacter(boolean primitive) { |
| return new StringToCharacterConverter(primitive); |
| } |
| |
| } |