| /**************************************************************************** |
| * Copyright (c) 2004 Composent, Inc. and others. |
| * 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: |
| * Composent, Inc. - initial API and implementation |
| *****************************************************************************/ |
| package org.eclipse.ecf.provider.jmdns.identity; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import org.eclipse.ecf.core.identity.*; |
| import org.eclipse.ecf.discovery.identity.IServiceTypeID; |
| |
| public class JMDNSNamespace extends Namespace { |
| |
| private static final long serialVersionUID = -7220857203720337921L; |
| |
| public static final String JMDNS_SCHEME = "jmdns"; //$NON-NLS-1$ |
| |
| public static final String NAME = "ecf.namespace.jmdns"; //$NON-NLS-1$ |
| |
| private String getInitFromExternalForm(final Object[] args) { |
| if (args == null || args.length < 1 || args[0] == null) |
| return null; |
| if (args[0] instanceof String) { |
| final String arg = (String) args[0]; |
| if (arg.startsWith(getScheme() + Namespace.SCHEME_SEPARATOR)) { |
| final int index = arg.indexOf(Namespace.SCHEME_SEPARATOR); |
| if (index >= arg.length()) |
| return null; |
| return arg.substring(index + 1); |
| } |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ecf.core.identity.Namespace#createInstance(java.lang.Object[]) |
| */ |
| public ID createInstance(final Object[] parameters) { |
| String type = null; |
| try { |
| final String init = getInitFromExternalForm(parameters); |
| if (init != null) |
| type = init; |
| else { |
| if (parameters == null || parameters.length < 1 || parameters.length > 2) { |
| throw new IDCreateException("Parameters cannot be null and must be of length 1 or 2"); //$NON-NLS-1$ |
| } |
| if (parameters[0] instanceof IServiceTypeID) { |
| type = ((IServiceTypeID) parameters[0]).getName(); |
| } else if (parameters[0] instanceof String) { |
| type = (String) parameters[0]; |
| } else |
| throw new IDCreateException("Service type id parameter has to be of type String or IServiceTypeID"); //$NON-NLS-1$ |
| } |
| } catch (final Exception e) { |
| throw new IDCreateException(getName() + " createInstance()", e); //$NON-NLS-1$ |
| } |
| final JMDNSServiceTypeID stid = new JMDNSServiceTypeID(this, type); |
| if (parameters.length == 1) { |
| return stid; |
| } else if (parameters[1] instanceof String) { |
| try { |
| final URI uri = new URI((String) parameters[1]); |
| return new JMDNSServiceID(this, stid, uri); |
| } catch (URISyntaxException e) { |
| throw new IDCreateException("Second parameter as String must follow URI syntax"); //$NON-NLS-1$ |
| } |
| } else if (parameters[1] instanceof URI) { |
| return new JMDNSServiceID(this, stid, (URI) parameters[1]); |
| } else { |
| throw new IDCreateException("Second parameter must be of either String or URI type"); //$NON-NLS-1$ |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ecf.core.identity.Namespace#getScheme() |
| */ |
| public String getScheme() { |
| return JMDNS_SCHEME; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ecf.core.identity.Namespace#getSupportedParameterTypesForCreateInstance() |
| */ |
| public Class[][] getSupportedParameterTypes() { |
| return new Class[][] { {String.class}, {String.class, String.class}}; |
| } |
| } |