QNameLocalPartValueBinding.java

/*******************************************************************************
 * Copyright (c) 2000-present Liferay, Inc. 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 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.
 *
 * Contributors:
 *               Kamesh Sampath - initial implementation
 *******************************************************************************/

package com.liferay.ide.portlet.core.model.internal;

import com.liferay.ide.core.util.StringPool;
import com.liferay.ide.portlet.core.util.PortletAppModelConstants;
import com.liferay.ide.portlet.core.util.PortletUtil;

import org.eclipse.sapphire.Property;
import org.eclipse.sapphire.modeling.xml.XmlElement;
import org.eclipse.sapphire.modeling.xml.XmlNode;
import org.eclipse.sapphire.modeling.xml.XmlPath;
import org.eclipse.sapphire.modeling.xml.XmlValueBindingImpl;
import org.eclipse.sapphire.modeling.xml.annotations.CustomXmlValueBinding;

/**
 * @author Kamesh Sampath
 */
public final class QNameLocalPartValueBinding extends XmlValueBindingImpl
{

    private XmlPath path;
    private String[] params;

    /*
     * (non-Javadoc)
     * @see org.eclipse.sapphire.modeling.PropertyBinding#init(org.eclipse.sapphire.modeling.Element,
     * org.eclipse.sapphire.modeling.Property, java.lang.String[])
     */
    @Override
    public void init( final Property property )
    {
        super.init( property );

        this.params = property.definition().getAnnotation( CustomXmlValueBinding.class ).params();
        this.path = new XmlPath( params[0], resource().getXmlNamespaceResolver() );
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.sapphire.modeling.ValuePropertyBinding#read()
     */
    @Override
    public String read()
    {
        String value = null;

        final XmlElement parent = xml( false );

        // Fix for Alias QName not displayed in list
        XmlElement qNameElement = null;
        if( parent.getLocalName().equals( params[0] ) )
        {
            qNameElement = parent;
        }
        else
        {
            qNameElement = parent.getChildElement( params[0], false );
        }

        // System.out.println( "Reading VALUE for Element  ___________________ " + qNameElement );

        if( qNameElement != null )
        {

            value = qNameElement.getText();

            if( value != null )
            {
                value = value.trim();
                value = PortletUtil.stripPrefix( value );
            }

        }

        return value;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.sapphire.modeling.ValuePropertyBinding#write(java.lang.String)
     */
    @Override
    public void write( final String value )
    {
        String val = value;
        XmlElement parent = xml( true );

        /*
         * In some cases the parent node and the child nodes will be same, we need to ensure that we dont create them
         * accidentally again
         */
        // System.out.println( "QNameLocalPartValueBinding.write() - Parent local name:" + parent.getLocalName() );
        XmlElement qNameElement = null;
        if( parent.getLocalName().equals( params[0] ) )
        {
            qNameElement = parent;
        }
        else
        {
            qNameElement = parent.getChildElement( params[0], true );
        }

        // System.out.println( "TextNodeValueBinding.write() - Parent " + xml( true ).getParent() );
        if( qNameElement != null )
        {
            val = val != null ? value.trim() : StringPool.EMPTY;
            if( params.length == 2 && "localpart".equals( params[1] ) ) //$NON-NLS-1$
            { // update only local part
                // System.out.println( "VALUE ___________________ " + val );
                String existingText = qNameElement.getText();
                if( existingText != null && existingText.indexOf( ":" ) != -1 ) //$NON-NLS-1$
                {
                    String updatedLocalPart = existingText.substring( 0, ( existingText.indexOf( ":" ) + 1 ) ); //$NON-NLS-1$
                    updatedLocalPart = updatedLocalPart + val;
                    // System.out.println( "Updated value ___________________ " + updatedLocalPart );
                    qNameElement.setText( updatedLocalPart );
                }
                else
                {
                    qNameElement.setText( PortletAppModelConstants.DEFAULT_QNAME_PREFIX + ":" + val ); //$NON-NLS-1$
                }

            }
            else
            {
                qNameElement.setText( PortletAppModelConstants.DEFAULT_QNAME_PREFIX + ":" + val ); //$NON-NLS-1$
            }
        }

    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.sapphire.modeling.xml.XmlValuePropertyBinding#getXmlNode()
     */
    @Override
    public XmlNode getXmlNode()
    {
        final XmlElement element = xml( false );

        if( element != null )
        {
            return element.getChildNode( this.path, false );
        }

        return null;
    }

}