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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.http.pathmap;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jetty.util.annotation.ManagedAttribute;
import org.eclipse.jetty.util.annotation.ManagedObject;
import org.eclipse.jetty.util.component.ContainerLifeCycle;
import org.eclipse.jetty.util.component.Dumpable;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
/**
* Path Mappings of PathSpec to Resource.
* <p>
* Sorted into search order upon entry into the Set
*
* @param <E> the type of mapping endpoint
*/
@ManagedObject("Path Mappings")
public class PathMappings<E> implements Iterable<MappedResource<E>>, Dumpable
{
private static final Logger LOG = Log.getLogger(PathMappings.class);
private List<MappedResource<E>> mappings = new ArrayList<MappedResource<E>>();
private MappedResource<E> defaultResource = null;
private MappedResource<E> rootResource = null;
@Override
public String dump()
{
return ContainerLifeCycle.dump(this);
}
@Override
public void dump(Appendable out, String indent) throws IOException
{
ContainerLifeCycle.dump(out,indent,mappings);
}
@ManagedAttribute(value = "mappings", readonly = true)
public List<MappedResource<E>> getMappings()
{
return mappings;
}
public void reset()
{
mappings.clear();
}
/**
* Return a list of MappedResource matches for the specified path.
*
* @param path the path to return matches on
* @return the list of mapped resource the path matches on
*/
public List<MappedResource<E>> getMatches(String path)
{
boolean matchRoot = "/".equals(path);
List<MappedResource<E>> ret = new ArrayList<>();
int len = mappings.size();
for (int i = 0; i < len; i++)
{
MappedResource<E> mr = mappings.get(i);
switch (mr.getPathSpec().group)
{
case ROOT:
if (matchRoot)
ret.add(mr);
break;
case DEFAULT:
if (matchRoot || mr.getPathSpec().matches(path))
ret.add(mr);
break;
default:
if (mr.getPathSpec().matches(path))
ret.add(mr);
break;
}
}
return ret;
}
public MappedResource<E> getMatch(String path)
{
if (path.equals("/") && rootResource != null)
{
return rootResource;
}
int len = mappings.size();
for (int i = 0; i < len; i++)
{
MappedResource<E> mr = mappings.get(i);
if (mr.getPathSpec().matches(path))
{
return mr;
}
}
return defaultResource;
}
@Override
public Iterator<MappedResource<E>> iterator()
{
return mappings.iterator();
}
@SuppressWarnings("incomplete-switch")
public void put(PathSpec pathSpec, E resource)
{
MappedResource<E> entry = new MappedResource<>(pathSpec,resource);
switch (pathSpec.group)
{
case DEFAULT:
defaultResource = entry;
break;
case ROOT:
rootResource = entry;
break;
}
// TODO: add warning when replacing an existing pathspec?
mappings.add(entry);
if (LOG.isDebugEnabled())
LOG.debug("Added {} to {}",entry,this);
Collections.sort(mappings);
}
@Override
public String toString()
{
return String.format("%s[size=%d]",this.getClass().getSimpleName(),mappings.size());
}
}
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