PatternsetDeltaVisitor.java

/*
 * ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0
 * 
 * Copyright (c) 2004 The ObjectStyle Group and individual authors of the
 * software. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if any, must
 * include the following acknowlegement: "This product includes software
 * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
 * this acknowlegement may appear in the software itself, if and wherever such
 * third-party acknowlegements normally appear.
 * 
 * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
 * promote products derived from this software without prior written permission.
 * For written permission, please contact andrus@objectstyle.org.
 * 
 * 5. Products derived from this software may not be called "ObjectStyle" nor
 * may "ObjectStyle" appear in their names without prior written permission of
 * the ObjectStyle Group.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many individuals on
 * behalf of the ObjectStyle Group. For more information on the ObjectStyle
 * Group, please see <http://objectstyle.org/>.
 *  
 */
package org.objectstyle.wolips.builder.internal;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.runtime.CoreException;
import org.objectstyle.wolips.core.resources.internal.types.project.ProjectPatternsets;
import org.objectstyle.wolips.core.resources.types.project.IProjectPatternsets;

/**
 * @author ulrich
 */
public class PatternsetDeltaVisitor extends DefaultDeltaVisitor {
	private boolean _fullBuildRequired;
	private boolean _needsFurtherInvestigation = true;

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
	 */
	public boolean visit(IResourceDelta delta) throws CoreException {
		if (!this._needsFurtherInvestigation) {
			return false;
		}
		if (!super.visit(delta)) {
			return false;
		}
		IResource resource = delta.getResource();
		if (resource.getType() == IResource.PROJECT) {
			return true;
		}
		if (resource.getType() == IResource.FOLDER && ProjectPatternsets.ANT_FOLDER_NAME.equals(resource.getName())) {
			return true;
		}
		if (ProjectPatternsets.EXTENSION.equals(resource.getFileExtension())) {
			IProject iProject = resource.getProject();
			IProjectPatternsets project = (IProjectPatternsets) iProject.getAdapter(IProjectPatternsets.class);
			project.releasePatternsetCache();
			_needsFurtherInvestigation = false;
			_fullBuildRequired = true;
			return false;
		}
		return false;
	}
	
	public boolean isFullBuildRequired() {
		return _fullBuildRequired;
	}

	/**
	 * 
	 */
	public void reset() {
		_needsFurtherInvestigation = true;
		_fullBuildRequired = false;
	}
}