/**
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.eclipse.webdav.client;

import java.net.MalformedURLException;
import org.eclipse.webdav.*;
import org.eclipse.webdav.internal.kernel.utils.Assert;

/**
 * <code>Dav Client</code>s implement the <code>IServer</code> interface
 * and represent a client's connection to a server.
 * <p>
 * <b>Note:</b> This class/interface is part of an interim API that is still under 
 * development and expected to change significantly before reaching stability. 
 * It is being made available at this early stage to solicit feedback from pioneering 
 * adopters on the understanding that any code that uses this API will almost 
 * certainly be broken (repeatedly) as the API evolves.
 * </p>
 */
public abstract class DAVClient implements IServer {

	protected WebDAVFactory davFactory = null;

	/**
	 * Creates a new DAV client from a clone of the given DAV client.
	 *
	 * @param davClient the DAV client to clone
	 */
	public DAVClient(DAVClient davClient) {
		davFactory = davClient.davFactory;
	}

	/**
	 * Creates a new DAV client.
	 *
	 * @param davFactory
	 */
	public DAVClient(WebDAVFactory davFactory) {
		Assert.isNotNull(davFactory);
		this.davFactory = davFactory;
	}

	/**
	 * @see Object#clone()
	 */
	protected abstract Object clone();

	public WebDAVFactory getDAVFactory() {
		return davFactory;
	}

	/**
	 * Returns a new context that is based on the given context.
	 *
	 * @param userContext
	 * @param locator
	 *
	 * @return a new context that is based on the given context
	 */
	protected IContext newContext(IContext userContext, ILocator locator) throws MalformedURLException {
		Assert.isNotNull(userContext);
		Assert.isNotNull(locator);
		IContext context = davFactory.newContext(userContext);
		if (locator.getLabel() != null)
			context.setLabel(locator.getLabel());
		return context;
	}

	/**
	 * Shut down the client for future use, and release any system resources associated with the
	 * instance.  Callers should not expect the client to succeed with further API calls once the
	 * client has been closed.
	 */
	public void close() {
		// Default is to do nothing.
	}
}