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TheCoder4EU

There is a newer version: 2.0.1

package net.bootsfaces.expressions;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.faces.FacesException;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;

public class FindPartialIdExpressionResolver implements AbstractExpressionResolver {
	public List resolve(UIComponent component, List parentComponents, String currentId,
			String originalExpression, String[] parameters) {

		List result = new ArrayList();
		for (UIComponent parent : parentComponents) {
			UIComponent searchRoot = parent;
			while ((!(searchRoot instanceof UIViewRoot)) && (!(searchRoot instanceof NamingContainer))) {
				searchRoot = searchRoot.getParent();
			}
				
			List c = findId(searchRoot, parameters[0]);
			if (null != c) {
				result.addAll(c);
			}
		}
		if (result.size() > 0) {
			return result;
		}

		throw new FacesException("Invalid search expression - couldn't find id " + currentId + ". Complete search expression: " + originalExpression);
	}

	public List findId(UIComponent parent, String id) {
		if (null==parent)
			return null;
		List result = new ArrayList();
		boolean found = matches(id, parent);
		if (found) {
			result.add(parent);
		}
		Iterator facetsAndChildren = parent.getFacetsAndChildren();
		while (facetsAndChildren.hasNext()) {
			UIComponent child = facetsAndChildren.next();
		    found = matches(id, child);
			if (found) {
				result.add(child);
			}
		}
		return result;
	}
	
	private boolean matches(String id, UIComponent child) {
		boolean found=false;
		if (id.startsWith("*") && id.endsWith("*")) {
			String search=id.substring(1, id.length()-1);
			if (child.getId() != null && child.getId().contains(search)) {
				found=true;
			}
		} else if (id.endsWith("*")) {
			String search=id.substring(0, id.length()-1);
			if (child.getId() != null && child.getId().startsWith(search)) {
				found=true;
			}
		} else if (id.startsWith("*")) {
			String search=id.substring(1);
			if (child.getId() != null && child.getId().endsWith(search)) {
				found=true;
			}
		}
		else if (id.equals(child.getId())) {
			found=true;
		}
		return found;
	}

}