ruper2/src/java/core/org/krysalis/ruper2/protocols/impl HttpClientProtocolOperationsProvider.java,NONE,1.1

Update of /cvsroot/metamorphosis/ruper2/src/java/core/org/krysalis/ruper2/protocols/impl
In directory sc8-pr-cvs1:/tmp/cvs-serv16855/src/java/core/org/krysalis/ruper2/protocols/impl

Added Files:
	HttpClientProtocolOperationsProvider.java 
Log Message:
1) Monitoring (so we can sniff out failures in testing, to improve)
2) First step in removing VFS...

--- NEW FILE: HttpClientProtocolOperationsProvider.java ---
/*
 * Created on Aug 27, 2003
 */
package org.krysalis.ruper2.protocols.impl;

import java.io.File;
import java.io.FileOutputStream;
import java.util.List;

import org.krysalis.ruper2.impl.ResourceUpdaterContext;
import org.krysalis.ruper2.protocols.Protocol;
import org.krysalis.ruper2.util.io.HtmlUtils;
import org.krysalis.ruper2.util.net.VirtualResourceLocator;
import org.krysalis.ruper2.util.net.http.HttpClientUserAgent;
import org.krysalis.ruper2.util.select.ISelector;

/**
 * @author ajack
 */
public class HttpClientProtocolOperationsProvider
	extends AbstractProtocolOperationsProvider {

	private HttpClientUserAgent m_agent = null;

	public void init(ResourceUpdaterContext context) throws Exception {
		super.init(context);

		addSourceProtocol(Protocol.HTTP_PROTOCOL);
		addSourceProtocol(Protocol.FILE_PROTOCOL);

		addDestinationProtocol(Protocol.HTTP_PROTOCOL);
		addDestinationProtocol(Protocol.FILE_PROTOCOL);

		m_agent = new HttpClientUserAgent();
	}

	public boolean exists(VirtualResourceLocator container) throws Exception {
		return m_agent.exists(container.toExternalForm());
	}

	public List list(VirtualResourceLocator container, ISelector selector)
		throws Exception {
		return HtmlUtils.getChildren(
			container,
			m_agent.getContents(container.toExternalForm()));
	}

	public void copy(
		VirtualResourceLocator from,
		VirtualResourceLocator to,
		ISelector selector)
		throws Exception {
		File toFile = new File(to.toString());

		// Build Folders to this Folder
		toFile.getParentFile().mkdirs();

		// Copy data...
		FileOutputStream stream = null;

		try {
			stream = new FileOutputStream(toFile);

			m_agent.transferContents(from.toExternalForm(), stream);

		}
		catch (Exception e) {
			// Attempt at cleanup
			try {
				toFile.delete();
			}
			catch (Exception ee) {
			}
		}
		finally {
			// Close
			try {
				if (null != stream)
					stream.close();
			}
			catch (Exception ee) {
			}
		}
	}

}




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