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Diffstat (limited to 'plugins/com.sun.jersey.source/com/sun/jersey/server/impl/uri/rules/automata/TrieNode.java')
| -rw-r--r-- | plugins/com.sun.jersey.source/com/sun/jersey/server/impl/uri/rules/automata/TrieNode.java | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/plugins/com.sun.jersey.source/com/sun/jersey/server/impl/uri/rules/automata/TrieNode.java b/plugins/com.sun.jersey.source/com/sun/jersey/server/impl/uri/rules/automata/TrieNode.java deleted file mode 100644 index 16d7a2b708c..00000000000 --- a/plugins/com.sun.jersey.source/com/sun/jersey/server/impl/uri/rules/automata/TrieNode.java +++ /dev/null @@ -1,278 +0,0 @@ -/* - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. - * - * Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved. - * - * The contents of this file are subject to the terms of either the GNU - * General Public License Version 2 only ("GPL") or the Common Development - * and Distribution License("CDDL") (collectively, the "License"). You - * may not use this file except in compliance with the License. You can - * obtain a copy of the License at - * http://glassfish.java.net/public/CDDL+GPL_1_1.html - * or packager/legal/LICENSE.txt. See the License for the specific - * language governing permissions and limitations under the License. - * - * When distributing the software, include this License Header Notice in each - * file and include the License file at packager/legal/LICENSE.txt. - * - * GPL Classpath Exception: - * Oracle designates this particular file as subject to the "Classpath" - * exception as provided by Oracle in the GPL Version 2 section of the License - * file that accompanied this code. - * - * Modifications: - * If applicable, add the following below the License Header, with the fields - * enclosed by brackets [] replaced by your own identifying information: - * "Portions Copyright [year] [name of copyright owner]" - * - * Contributor(s): - * If you wish your version of this file to be governed by only the CDDL or - * only the GPL Version 2, indicate your decision by adding "[Contributor] - * elects to include this software in this distribution under the [CDDL or GPL - * Version 2] license." If you don't indicate a single choice of license, a - * recipient has the option to distribute your version of this file under - * either the CDDL, the GPL Version 2 or to extend the choice of license to - * its licensees as provided above. However, if you add GPL Version 2 code - * and therefore, elected the GPL Version 2 license, then the option applies - * only if the new code is made subject to such option by the copyright - * holder. - */ - -package com.sun.jersey.server.impl.uri.rules.automata; - -import com.sun.jersey.api.uri.UriPattern; -import com.sun.jersey.api.uri.UriTemplate; -import java.util.Iterator; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -/** - * Represents a trie automata node. - * @author Frank D. Martinez. fmartinez@asimovt.com - */ -public final class TrieNode<T> { - - /** TemplateParameters pattern regexp. */ - public static final Pattern PARAMETER_PATTERN = - Pattern.compile("\\{([\\w-\\._~]+?)\\}"); - - /** Wildcard character */ - private static final char WILDCARD_CHAR = '\0'; - - /** First child arc (this is a linked tree structure) */ - private TrieArc<T> firstArc; - - /** Last child arc (this is a linked tree structure) */ - private TrieArc<T> lastArc; - - /** arc counter */ - private int arcs = 0; - - /** Node's data */ - private TrieNodeValue<T> value = new TrieNodeValue<T>(); - - /** Node's UriPattern used to match. */ - private UriPattern pattern; - - /** Tells if this node is a wildcard node */ - private boolean wildcard = false; - - /** wildcard setter. - * @param b New wildcard value. - */ - protected void setWildcard(boolean b) { - wildcard = b; - } - - /** value setter. - * @param value New value. - * @param template Associated template. - */ - protected void setValue(T value, UriPattern pattern) { - this.value.set(value); - this.pattern = pattern; - } - - /** Creates a new instance of TrieNode */ - protected TrieNode() { - super(); - } - - /** Creates a new instance of TrieNode - * @param value Initial value. - */ - protected TrieNode(T value) { - this.value.set(value); - } - - /** - * Search for a matching escape character in a wildcard sequence. - * @param c Test char. - */ - protected TrieArc<T> matchExitArc(CharSequence seq, int i) { - TrieArc<T> arc = firstArc; - while (arc != null) { - if (arc.match(seq, i) > 0) { - return arc; - } - arc = arc.next; - } - return null; - } - - /** - * Tells if there is a value in this node. - */ - protected boolean hasValue() { - return !value.isEmpty(); - } - - /** - * Adds an arc at the end. - * @param arc New arc. - */ - private void addArc(TrieArc<T> arc) { - if (firstArc == null) { - firstArc = arc; - } - else { - lastArc.next = arc; - } - lastArc = arc; - arcs++; - } - - /** - * Adds a new node in the tree. - * @param path Tree position (URI) - * @param i Current position in path. - * @param value Value to be added at the end of path. - * @param pattern UriPattern associated with value. - */ - private boolean add(CharSequence path, int i, T value, - UriPattern pattern) { - - // Case 1: NULL, The Last ---------------------------------------------- - if (i >= path.length()) { - setValue(value, pattern); - return true; - } - - // Case 2: Recursive add ----------------------------------------------- - char input = path.charAt(i); - boolean added = false; - TrieArc<T> arc = firstArc; - while (arc != null) { - if (arc.match(path, i) > 0) { - added = arc.target.add(path, i+1, value, pattern); - if (added) { - return added; - } - } - arc = arc.next; - } - - // Case 3: Set as wildcard --------------------------------------------- - TrieNode<T> node; - if (input == WILDCARD_CHAR) { - setWildcard(true); - return add(path, i+1, value, pattern); - } - - // Case 4: Just Add ---------------------------------------------------- - else { - node = new TrieNode<T>(); - addArc(new TrieArc<T>(node, input)); - return node.add(path, i+1, value, pattern); - } - - } - - /** - * Adds a new node to the tree. - * @param path Matching URI - * @param value Value to be added. - * @param template Associated UriPattern. - */ - protected void add(String path, T value, UriPattern pattern) { - - // Replace All parameter macro by a WILDCARD character. - Matcher matcher = PARAMETER_PATTERN.matcher(path); - String uri = matcher.replaceAll(String.valueOf(WILDCARD_CHAR)); - - // If ends with '/', add the parent - if (uri.endsWith("/") && uri.length() > 1) { - add(uri.substring(0, uri.length()-1), 0, value, pattern); - } - - // Add to root - add(uri, 0, value, pattern); - - } - - /** - * @see java.lang.Object#toString() - */ - @Override public String toString() { - StringBuilder out = new StringBuilder(); - toStringRepresentation(out, 0, new char[] {'\0'}); - return out.toString(); - } - - /** - * Builds a string representation of this subtree. - * @param out Output string. - * @param level indentation level. - * @param c Transition char. - */ - private void toStringRepresentation(StringBuilder out, int level, char[] c) { - for (int i=0; i<level; i++) out.append(' '); - out.append("ARC(" + new String(c) + ") ->"); - out.append(getClass().getSimpleName() + (wildcard?"*":"")); - out.append(" "); - out.append(value); - out.append('\n'); - TrieArc<T> arc = firstArc; - while (arc != null) { - arc.target.toStringRepresentation(out, level+2, arc.code); - arc = arc.next; - } - } - - /** pattern getter. */ - public UriPattern getPattern() { - return pattern; - } - - /** value getter. */ - public Iterator<T> getValue() { - return value.getIterator(); - } - - /** wildcard getter. */ - protected boolean isWildcard() { - return wildcard; - } - - /** firstArch getter. */ - protected TrieArc<T> getFirstArc() { - return firstArc; - } - - /** arcs getter. */ - public int getArcs() { - return arcs; - } - - /** - * Pack and optimize the automata. - */ - public void pack() { - TrieArc<T> arc = firstArc; - while (arc != null) { - arc.pack(); - arc = arc.next; - } - } - -} |