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/*
* Copyright (c) 2009-2012, 2014-2016 Eike Stepper (Loehne, Germany) 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:
* Victor Roldan Betancort - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.cdo.view;
import org.eclipse.emf.cdo.view.CDOViewProvider.CDOViewProvider2;
import org.eclipse.net4j.util.ReflectUtil.ExcludeFromDump;
import org.eclipse.emf.common.util.URI;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Base logic to handle CDOViewProvider priority and regular expression.
*
* @author Victor Roldan Betancort
* @since 2.0
*/
public abstract class AbstractCDOViewProvider implements CDOViewProvider2
{
private String regex;
private int priority = DEFAULT_PRIORITY;
@ExcludeFromDump
private transient Pattern pattern;
public AbstractCDOViewProvider()
{
}
public AbstractCDOViewProvider(String regex, int priority)
{
this.regex = regex;
this.priority = priority;
}
public AbstractCDOViewProvider(String regex)
{
this(regex, DEFAULT_PRIORITY);
}
public int getPriority()
{
return priority;
}
public void setPriority(int priority)
{
this.priority = priority;
}
public String getRegex()
{
return regex;
}
public void setRegex(String regex)
{
synchronized (regex)
{
this.regex = regex;
pattern = null;
}
}
public boolean matchesRegex(URI uri)
{
synchronized (regex)
{
if (pattern == null)
{
pattern = Pattern.compile(regex);
}
}
Matcher matcher = pattern.matcher(uri.toString());
return matcher.matches();
}
/**
* Must be overwritten for non-canonical URI formats!
*
* @since 4.0
*/
public URI getResourceURI(CDOView view, String path)
{
return null;
}
/**
* @since 4.4
*/
public final URI getViewURI(CDOView view)
{
return getResourceURI(view, null);
}
/**
* Should be overwritten for non-canonical URI formats!
*
* @since 4.4
*/
public URI getViewURI(URI uri)
{
return URI.createHierarchicalURI(uri.scheme(), uri.authority(), uri.device(), null, null);
}
/**
* Should be overwritten for non-canonical URI formats!
*
* @since 4.4
*/
public String getPath(URI uri)
{
return uri.path();
}
@Override
public String toString()
{
return "CDOViewProviderDescriptor[" + getPriority() + " --> " + getRegex() + "]";
}
}
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