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/****************************************************************************
* 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"; //$NON-NLS-1$
public JMDNSNamespace() {
super();
}
/**
* @param description description for namespace
* @since 4.3
*/
public JMDNSNamespace(String description) {
super(NAME, description);
}
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}, {IServiceTypeID.class}, {String.class, URI.class}};
}
}
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