JSLPServiceTypeID.java

/*******************************************************************************
 * Copyright (c) 2007 Versant Corp.
 * 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:
 *     Markus Kuppe (mkuppe <at> versant <dot> com) - initial API and implementation
 ******************************************************************************/

package org.eclipse.ecf.provider.jslp.identity;

import ch.ethz.iks.slp.ServiceType;
import ch.ethz.iks.slp.ServiceURL;
import org.eclipse.core.runtime.Assert;
import org.eclipse.ecf.core.identity.IDCreateException;
import org.eclipse.ecf.core.identity.Namespace;
import org.eclipse.ecf.core.util.StringUtils;
import org.eclipse.ecf.discovery.identity.IServiceTypeID;
import org.eclipse.ecf.discovery.identity.ServiceTypeID;

public class JSLPServiceTypeID extends ServiceTypeID {

	private static final String JSLP_DELIM = ":"; //$NON-NLS-1$
	private static final String JSLP_DEFAULT_NA = "IANA"; //$NON-NLS-1$

	private static final long serialVersionUID = -4558132760112793805L;

	private final ServiceType st;

	protected JSLPServiceTypeID(final Namespace namespace, final String type) {
		super(namespace);
		try {
			st = new ServiceType(type);
			// verify that the ServiceType is proper
			Assert.isNotNull(st.toString());
			Assert.isTrue(!st.toString().equals("")); //$NON-NLS-1$

			final String na = st.getNamingAuthority();
			String str = st.toString();
			if ("".equals(na)) { //$NON-NLS-1$
				namingAuthority = DEFAULT_NA;
			} else {
				namingAuthority = na;
				// remove the naming authority from the string
				str = StringUtils.replaceAllIgnoreCase(str, "." + na, ""); //$NON-NLS-1$//$NON-NLS-2$
			}

			services = StringUtils.split(str, JSLP_DELIM);
			scopes = DEFAULT_SCOPE; //TODO-mkuppe https://bugs.eclipse.org/218308
			protocols = DEFAULT_PROTO; //TODO-mkuppe https://bugs.eclipse.org/230182

			createType();
		} catch (Exception e) {
			throw new IDCreateException(type + " is not a valid ServiceTypeID"); //$NON-NLS-1$
		}
	}

	JSLPServiceTypeID(final Namespace namespace, final ServiceURL anURL, final String[] scopes) {
		this(namespace, anURL.getServiceType());

		if (scopes != null && scopes.length > 0) {
			this.scopes = scopes;
		}

		// set the protocol if provided
		final String protocol = anURL.getProtocol();
		if (protocol != null) {
			protocols = new String[] {protocol};
			createType();
		}
	}

	JSLPServiceTypeID(final Namespace namespace, final IServiceTypeID type) {
		super(namespace, type);

		final StringBuffer buf = new StringBuffer("service:"); //$NON-NLS-1$
		for (int i = 0; i < services.length; i++) {
			buf.append(services[i]);
			// #228876
			if (!namingAuthority.equalsIgnoreCase(JSLP_DEFAULT_NA) && i == 0) {
				buf.append('.');
				buf.append(namingAuthority);
			}
			buf.append(':');
		}
		// remove dangling colon
		final String string = buf.toString();
		st = new ServiceType(string.substring(0, string.length() - 1));
	}

	JSLPServiceTypeID(final Namespace namespace, final ServiceType aServiceType) {
		this(namespace, aServiceType.toString());

		// remove the SLP "service" prefix
		final String[] newServices = new String[services.length - 1];
		System.arraycopy(services, 1, newServices, 0, newServices.length);
		services = newServices;

		createType();
	}

	/**
	 * @return the jSLP ServiceType
	 */
	public ServiceType getServiceType() {
		return st;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ecf.discovery.identity.ServiceTypeID#getInternal()
	 */
	public String getInternal() {
		final String str = st.toString();
		Assert.isNotNull(str);

		// remove the dangling colon if present
		if (str.endsWith(":")) { //$NON-NLS-1$
			Assert.isTrue(str.length() > 1);
			return str.substring(0, str.length() - 1);
		}

		// remove the default naming authority #228876
		return StringUtils.replaceAllIgnoreCase(str, "." + JSLP_DEFAULT_NA, ""); //$NON-NLS-1$//$NON-NLS-2$
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ecf.discovery.identity.ServiceTypeID#getName()
	 */
	public String getName() {
		String name = super.getName();
		name = StringUtils.replaceAll(name, JSLP_DEFAULT_NA, IServiceTypeID.DEFAULT_NA);
		return name;
	}
}