/*******************************************************************************
* Copyright (c) 2006, 2012 Oracle Corporation and others.
* 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:
* Oracle Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.bpel.ui.details.providers;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.jface.viewers.IStructuredContentProvider;
/**
* @author Michal Chmielewski (michal.chmielewski@oracle.com)
* @date Jul 18, 2006
*
*/
public class CompositeContentProvider extends AbstractContentProvider {
List fList = new LinkedList();
/**
*
*/
public CompositeContentProvider() {
super();
}
/**
* @param providers
*/
public CompositeContentProvider (IStructuredContentProvider[] providers) {
super();
if (providers != null) {
for(int i=0; i<providers.length; i++) {
fList.add(providers[i]);
}
}
}
public void add ( IStructuredContentProvider provider ) {
fList.add ( provider );
}
@Override
public void collectElements (Object input, List list) {
// Check if the input element is a complex one
if (collectComplex(input, list)) {
return ;
}
Iterator it = fList.iterator();
while (it.hasNext()) {
Object next = it.next();
if (next instanceof AbstractContentProvider) {
AbstractContentProvider provider = (AbstractContentProvider) next;
provider.collectElements(input, list);
} else if (next instanceof IStructuredContentProvider) {
IStructuredContentProvider provider = (IStructuredContentProvider) next;
Object objs [] = provider.getElements(input);
if (objs.length > 0) {
for(int j=0; j<objs.length;j++) {
list.add(objs[j]);
}
}
}
// silently ignore non-conformists ?
}
}
}