updating jetty to jetty-9.2.16.v2016040

[gigi.git] / lib / jetty / org / eclipse / jetty / http / pathmap / PathMappings.java

diff --git a/lib/jetty/org/eclipse/jetty/http/pathmap/PathMappings.java b/lib/jetty/org/eclipse/jetty/http/pathmap/PathMappings.java
new file mode 100644 (file)
index 0000000..d1c36cf
--- /dev/null
+++ b/lib/jetty/org/eclipse/jetty/http/pathmap/PathMappings.java
@@ -0,0 +1,159 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2016 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());
+    }
+}