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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 org.eclipse.ecf.core.identity.*;
import org.eclipse.ecf.internal.provider.jmdns.Messages;
import org.eclipse.osgi.util.NLS;
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();
}
private String getInitFromExternalForm(Object[] args) {
if (args == null || args.length < 1 || args[0] == null)
return null;
if (args[0] instanceof String) {
String arg = (String) args[0];
if (arg.startsWith(getScheme() + Namespace.SCHEME_SEPARATOR)) {
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(Object[] parameters) throws IDCreateException {
String type = null;
try {
String init = getInitFromExternalForm(parameters);
if (init != null)
type = init;
else {
if (parameters == null || parameters.length < 1 || parameters.length > 2) {
throw new IDCreateException(Messages.JMDNSNamespace_EXCEPTION_ID_WRONG_PARAM_COUNT);
}
if (parameters[0] instanceof JMDNSServiceTypeID) {
type = ((JMDNSServiceTypeID) parameters[0]).getInternal();
} else if (parameters[0] instanceof String) {
type = (String) parameters[0];
} else
throw new IDCreateException(Messages.JMDNSNamespace_EXCEPTION_TYPE_PARAM_NOT_STRING);
}
} catch (Exception e) {
throw new IDCreateException(NLS.bind("{0} createInstance()", getName()), e); //$NON-NLS-1$
}
final JMDNSServiceTypeID stid = new JMDNSServiceTypeID(this, type);
String name = null;
if (parameters.length > 1) {
try {
name = (String) parameters[1];
} catch (final ClassCastException e) {
throw new IDCreateException(Messages.JMDNSNamespace_EXCEPTION_ID_PARAM_2_WRONG_TYPE);
}
}
return new JMDNSServiceID(this, stid, name);
}
/* (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}};
}
}
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