core/org.eclipse.tigerstripe.core/src/main/java/org/eclipse/tigerstripe/workbench/internal/api/impl/AbstractTigerstripeProjectHandle.java

/*******************************************************************************
 * Copyright (c) 2007 Cisco Systems, Inc.
 * 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:
 *    E. Dillon (Cisco Systems, Inc.) - reformat for Code Open-Sourcing
 *******************************************************************************/
package org.eclipse.tigerstripe.workbench.internal.api.impl;

import java.io.File;
import java.net.URI;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.tigerstripe.workbench.internal.WorkingCopyManager;
import org.eclipse.tigerstripe.workbench.project.IAbstractTigerstripeProject;

public abstract class AbstractTigerstripeProjectHandle 
        extends WorkingCopyManager
		implements IAbstractTigerstripeProject {

	@Override
    public String getName() {
	    String path = projectContainerURI.getPath();
	    return new File(path).getName();
	}

	// we keep track of a TStamp on the hanlde when we create it to know
	// when the handle is invalid because the underlying URI actually changed
	private long handleTStamp;

	private URI projectContainerURI;

	public AbstractTigerstripeProjectHandle(URI projectContainerURI) {
		this.projectContainerURI = projectContainerURI;

		if (projectContainerURI == null)// Read-only tigerstripe project from
			// module
			return;

		File file = new File(projectContainerURI);
		if (file.exists()) {
			handleTStamp = file.lastModified();
		}
	}

	public File getBaseDir() {
		if (getProjectContainerURI() != null)
			return new File(getProjectContainerURI());
		return null;
	}

	public URI getProjectContainerURI() {
		return this.projectContainerURI;
	}


	public URI getURI() {
		return getProjectContainerURI();
	}
	
	public IPath getLocation() {
        return getURI() == null ? null : new Path(new File(getURI()).getAbsolutePath());
    }

	/**
	 * Tries and locate the project descriptor for this project
	 * 
	 * @return
	 */
	protected abstract boolean findProjectDescriptor();


	@Override
	public boolean equals(Object arg0) {
		if (this == arg0) {
			return true;
		}
		if (arg0 == null)
			return false;

		if (arg0.getClass() == this.getClass()) {
			if (getURI() != null) {
				return getURI().equals(
						((AbstractTigerstripeProjectHandle) arg0).getURI());
			}
		}
		return false;
	}

	@Override
	public int hashCode() {
		if (getURI() != null) {
			return getURI().hashCode();
		}
		return super.hashCode();
	}

	public long handleTStamp() {
		return this.handleTStamp;
	}
}