/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.core;
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import static org.opends.server.messages.MessageHandler.getMessage;
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import static org.opends.server.messages.SchemaMessages.*;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.InputMismatchException;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.DN;
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import org.opends.server.types.Entry;
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import org.opends.server.types.ObjectClass;
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import org.opends.server.types.ResultCode;
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import org.opends.server.util.StaticUtils;
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/**
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* An RFC 3672 subtree specification.
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* <p>
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* Refer to RFC 3672 for a detailed definition of the subtree
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* specification string representation.
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*/
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public final class RFC3672SubtreeSpecification extends
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SimpleSubtreeSpecification {
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// The root DN.
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private DN rootDN;
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// The optional relative base DN.
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private DN relativeBaseDN;
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// The optional specification filter refinements.
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private Refinement refinements;
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/**
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* Abstract interface for RFC3672 specification filter refinements.
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*/
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public static abstract class Refinement {
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/**
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* Create a new RFC3672 specification filter refinement.
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*/
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protected Refinement() {
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// No implementation required.
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}
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/**
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* Check if the refinement matches the given entry.
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*
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* @param entry
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* The filterable entry.
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* @return Returns <code>true</code> if the entry matches the
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* refinement, or <code>false</code> otherwise.
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*/
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public abstract boolean matches(Entry entry);
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/**
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* {@inheritDoc}
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*/
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@Override
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public final String toString() {
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StringBuilder builder = new StringBuilder();
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return toString(builder).toString();
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}
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/**
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* Append the string representation of the refinement to the
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* provided string builder.
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*
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* @param builder
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* The string builder.
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* @return The string builder.
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*/
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public abstract StringBuilder toString(StringBuilder builder);
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/**
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* {@inheritDoc}
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*/
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@Override
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public abstract boolean equals(Object obj);
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/**
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* {@inheritDoc}
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*/
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@Override
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public abstract int hashCode();
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}
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/**
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* RFC 3672 subtree specification Item refinement. This type of
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* refinement filters entries based on the presence of a specified
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* object class.
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*/
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public static final class ItemRefinement extends Refinement {
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// The item's object class.
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private String objectClass;
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// The item's normalized object class.
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private String normalizedObjectClass;
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/**
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* Create a new item refinement.
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*
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* @param objectClass
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* The item's object class.
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*/
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public ItemRefinement(String objectClass) {
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this.objectClass = objectClass;
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this.normalizedObjectClass = StaticUtils.toLowerCase(objectClass
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.trim());
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean matches(Entry entry) {
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ObjectClass oc = DirectoryServer
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.getObjectClass(normalizedObjectClass);
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if (oc == null) {
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return false;
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} else {
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return entry.hasObjectClass(oc);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public StringBuilder toString(StringBuilder builder) {
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builder.append("item:");
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builder.append(objectClass);
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return builder;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj instanceof ItemRefinement) {
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ItemRefinement other = (ItemRefinement) obj;
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return normalizedObjectClass.equals(other.normalizedObjectClass);
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode() {
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return normalizedObjectClass.hashCode();
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}
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}
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/**
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* RFC 3672 subtree specification NOT refinement. This type of
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* refinement filters entries based on the underlying refinement being
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* <code>false</code>.
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*/
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public static final class NotRefinement extends Refinement {
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// The inverted refinement.
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private Refinement refinement;
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/**
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* Create a new NOT refinement.
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*
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* @param refinement
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* The refinement which must be <code>false</code>.
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*/
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public NotRefinement(Refinement refinement) {
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this.refinement = refinement;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean matches(Entry entry) {
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return !refinement.matches(entry);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public StringBuilder toString(StringBuilder builder) {
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builder.append("not:");
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return refinement.toString(builder);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj instanceof NotRefinement) {
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NotRefinement other = (NotRefinement) obj;
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return refinement.equals(other.refinement);
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode() {
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return refinement.hashCode();
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}
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}
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/**
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* RFC 3672 subtree specification AND refinement. This type of
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* refinement filters entries based on all of the underlying
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* refinements being <code>true</code>.
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*/
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public static final class AndRefinement extends Refinement {
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// The set of refinements which must all be true.
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private Collection<Refinement> refinementSet;
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/**
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* Create a new AND refinement.
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*
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* @param refinementSet
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* The set of refinements which must all be
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* <code>true</code>.
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*/
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public AndRefinement(Collection<Refinement> refinementSet) {
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this.refinementSet = refinementSet;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean matches(Entry entry) {
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for (Refinement refinement : refinementSet) {
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if (refinement.matches(entry) == false) {
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return false;
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}
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}
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// All sub-refinements matched.
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public StringBuilder toString(StringBuilder builder) {
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switch (refinementSet.size()) {
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case 0:
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// Do nothing.
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break;
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case 1:
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refinementSet.iterator().next().toString(builder);
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break;
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default:
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builder.append("and:{");
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Iterator<Refinement> iterator = refinementSet.iterator();
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iterator.next().toString(builder);
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while (iterator.hasNext()) {
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builder.append(", ");
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iterator.next().toString(builder);
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}
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builder.append("}");
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break;
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}
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return builder;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj instanceof AndRefinement) {
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AndRefinement other = (AndRefinement) obj;
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return refinementSet.equals(other.refinementSet);
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode() {
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return refinementSet.hashCode();
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}
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}
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/**
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* RFC 3672 subtree specification OR refinement. This type of
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* refinement filters entries based on at least one of the underlying
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* refinements being <code>true</code>.
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*/
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public static final class OrRefinement extends Refinement {
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// The set of refinements of which at least one must be true.
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private Collection<Refinement> refinementSet;
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/**
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* Create a new OR refinement.
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*
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* @param refinementSet
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* The set of refinements of which at least one must be
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* <code>true</code>.
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*/
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public OrRefinement(Collection<Refinement> refinementSet) {
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this.refinementSet = refinementSet;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean matches(Entry entry) {
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for (Refinement refinement : refinementSet) {
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if (refinement.matches(entry) == true) {
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return true;
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}
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}
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// No sub-refinements matched.
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public StringBuilder toString(StringBuilder builder) {
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switch (refinementSet.size()) {
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case 0:
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// Do nothing.
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break;
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case 1:
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refinementSet.iterator().next().toString(builder);
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break;
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default:
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builder.append("or:{");
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Iterator<Refinement> iterator = refinementSet.iterator();
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iterator.next().toString(builder);
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while (iterator.hasNext()) {
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builder.append(", ");
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iterator.next().toString(builder);
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}
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builder.append("}");
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break;
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}
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return builder;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj instanceof AndRefinement) {
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AndRefinement other = (AndRefinement) obj;
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return refinementSet.equals(other.refinementSet);
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode() {
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return refinementSet.hashCode();
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}
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}
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/**
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* Parses the string argument as an RFC3672 subtree specification.
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*
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* @param rootDN
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* The DN of the subtree specification's base entry.
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* @param s
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* The string to be parsed.
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* @return The RFC3672 subtree specification represented by the string
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* argument.
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* @throws DirectoryException
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* If the string does not contain a parsable relative
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* subtree specification.
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*/
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public static RFC3672SubtreeSpecification valueOf(DN rootDN, String s)
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throws DirectoryException {
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// Default values.
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DN relativeBaseDN = null;
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int minimum = -1;
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int maximum = -1;
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HashSet<DN> chopBefore = new HashSet<DN>();
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HashSet<DN> chopAfter = new HashSet<DN>();
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Refinement refinement = null;
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// Value must have an opening left brace.
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Parser parser = new Parser(s);
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boolean isValid = true;
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try {
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parser.skipLeftBrace();
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// Parse each element of the value sequence.
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boolean isFirst = true;
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while (true) {
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if (parser.hasNextRightBrace()) {
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// Make sure that there is a closing brace and no trailing
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// text.
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parser.skipRightBrace();
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if (parser.hasNext()) {
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throw new java.util.InputMismatchException();
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}
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break;
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}
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// Make sure that there is a comma separator if this is not the
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// first element.
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if (!isFirst) {
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parser.skipSeparator();
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} else {
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isFirst = false;
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}
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String key = parser.nextKey();
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if (key.equals("base")) {
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if (relativeBaseDN != null) {
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// Relative base DN specified more than once.
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throw new InputMismatchException();
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}
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relativeBaseDN = DN.decode(parser.nextStringValue());
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} else if (key.equals("minimum")) {
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if (minimum != -1) {
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// Minimum specified more than once.
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throw new InputMismatchException();
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}
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minimum = parser.nextInt();
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} else if (key.equals("maximum")) {
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if (maximum != -1) {
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// Maximum specified more than once.
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throw new InputMismatchException();
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}
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maximum = parser.nextInt();
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} else if (key.equals("specificationfilter")) {
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if (refinement != null) {
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// Refinements specified more than once.
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throw new InputMismatchException();
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}
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refinement = parseRefinement(parser);
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} else if (key.equals("specificexclusions")) {
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if (!chopBefore.isEmpty() || !chopAfter.isEmpty()) {
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// Specific exclusions specified more than once.
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throw new InputMismatchException();
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}
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parser.nextSpecificExclusions(chopBefore, chopAfter);
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} else {
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throw new InputMismatchException();
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}
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}
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// Make default minimum value is 0.
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if (minimum < 0) {
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minimum = 0;
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}
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// Check that the maximum, if specified, is gte the minimum.
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if (maximum >= 0 && maximum < minimum) {
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isValid = false;
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}
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} catch (InputMismatchException e) {
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isValid = false;
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} catch (NoSuchElementException e) {
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isValid = false;
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}
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if (isValid) {
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return new RFC3672SubtreeSpecification(rootDN, relativeBaseDN,
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minimum, maximum, chopBefore, chopAfter, refinement);
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} else {
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int msgID = MSGID_ATTR_SYNTAX_RFC3672_SUBTREE_SPECIFICATION_INVALID;
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String message = getMessage(msgID, s);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message, msgID);
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}
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}
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/**
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* Parse a single refinement.
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*
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* @param parser
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* The active subtree specification parser.
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* @return The parsed refinement.
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* @throws InputMismatchException
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* If the common component did not have a valid syntax.
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* @throws NoSuchElementException
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* If input is exhausted.
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*/
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private static Refinement parseRefinement(Parser parser)
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throws InputMismatchException, NoSuchElementException {
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// Get the type of refinement.
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String type = StaticUtils.toLowerCase(parser.nextName());
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// Skip the colon separator.
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parser.skipColon();
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if (type.equals("item")) {
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return new ItemRefinement(parser.nextName());
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} else if (type.equals("not")) {
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Refinement refinement = parseRefinement(parser);
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return new NotRefinement(refinement);
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} else if (type.equals("and")) {
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ArrayList<Refinement> refinements = parseRefinementSet(parser);
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return new AndRefinement(refinements);
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} else if (type.equals("or")) {
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ArrayList<Refinement> refinements = parseRefinementSet(parser);
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return new OrRefinement(refinements);
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} else {
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// Unknown refinement type.
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throw new InputMismatchException();
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}
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}
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/**
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* Parse a list of refinements.
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*
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* @param parser
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* The active subtree specification parser.
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* @return The parsed refinement list.
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* @throws InputMismatchException
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* If the common component did not have a valid syntax.
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* @throws NoSuchElementException
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* If input is exhausted.
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*/
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private static ArrayList<Refinement> parseRefinementSet(Parser parser)
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throws InputMismatchException, NoSuchElementException {
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ArrayList<Refinement> refinements = new ArrayList<Refinement>();
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// Skip leading open-brace.
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parser.skipLeftBrace();
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// Parse each chop DN in the sequence.
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boolean isFirstValue = true;
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while (true) {
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// Make sure that there is a closing brace.
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if (parser.hasNextRightBrace()) {
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parser.skipRightBrace();
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break;
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}
|
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// Make sure that there is a comma separator if this is not
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// the first element.
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if (!isFirstValue) {
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parser.skipSeparator();
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} else {
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isFirstValue = false;
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}
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// Parse each sub-refinement.
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Refinement refinement = parseRefinement(parser);
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refinements.add(refinement);
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}
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return refinements;
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}
|
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/**
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* Create a new RFC3672 subtree specification.
|
*
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* @param rootDN
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* The root DN of the subtree.
|
* @param relativeBaseDN
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* The relative base DN (or <code>null</code> if not
|
* specified).
|
* @param minimumDepth
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* The minimum depth (<=0 means unlimited).
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* @param maximumDepth
|
* The maximum depth (<0 means unlimited).
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* @param chopBefore
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* The set of chop before local names (relative to the
|
* relative base DN), or <code>null</code> if there are
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* none.
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* @param chopAfter
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* The set of chop after local names (relative to the
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* relative base DN), or <code>null</code> if there are
|
* none.
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* @param refinements
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* The optional specification filter refinements, or
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* <code>null</code> if there are none.
|
*/
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public RFC3672SubtreeSpecification(DN rootDN, DN relativeBaseDN,
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int minimumDepth, int maximumDepth, Iterable<DN> chopBefore,
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Iterable<DN> chopAfter, Refinement refinements) {
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super(relativeBaseDN == null ? rootDN : rootDN.concat(relativeBaseDN),
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minimumDepth, maximumDepth, chopBefore, chopAfter);
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|
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this.rootDN = rootDN;
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this.relativeBaseDN = relativeBaseDN;
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this.refinements = refinements;
|
}
|
|
/**
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* Get the root DN.
|
*
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* @return Returns the root DN.
|
*/
|
public DN getRootDN() {
|
return rootDN;
|
}
|
|
/**
|
* Get the relative base DN.
|
*
|
* @return Returns the relative base DN or <code>null</code> if none
|
* was specified.
|
*/
|
public DN getRelativeBaseDN() {
|
return relativeBaseDN;
|
}
|
|
/**
|
* Get the specification filter refinements.
|
*
|
* @return Returns the specification filter refinements, or
|
* <code>null</code> if none were specified.
|
*/
|
public Refinement getRefinements() {
|
return refinements;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public boolean isWithinScope(Entry entry) {
|
|
if (isDNWithinScope(entry.getDN())) {
|
if (refinements != null) {
|
return refinements.matches(entry);
|
} else {
|
return true;
|
}
|
} else {
|
return false;
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public StringBuilder toString(StringBuilder builder) {
|
|
boolean isFirstElement = true;
|
|
// Output the optional base DN.
|
builder.append("{");
|
if (relativeBaseDN != null && !relativeBaseDN.isNullDN()) {
|
builder.append(" base ");
|
StaticUtils.toRFC3641StringValue(builder, relativeBaseDN.toString());
|
isFirstElement = false;
|
}
|
|
// Output the optional specific exclusions.
|
Iterable<DN> chopBefore = getChopBefore();
|
Iterable<DN> chopAfter = getChopAfter();
|
|
if ((chopBefore != null && chopBefore.iterator().hasNext())
|
|| (chopAfter != null && chopAfter.iterator().hasNext())) {
|
|
if (!isFirstElement) {
|
builder.append(",");
|
} else {
|
isFirstElement = false;
|
}
|
builder.append(" specificExclusions { ");
|
|
boolean isFirst = true;
|
|
if (chopBefore != null) {
|
for (DN dn : chopBefore) {
|
if (!isFirst) {
|
builder.append(", chopBefore:");
|
} else {
|
builder.append("chopBefore:");
|
isFirst = false;
|
}
|
StaticUtils.toRFC3641StringValue(builder, dn.toString());
|
}
|
}
|
|
if (chopAfter != null) {
|
for (DN dn : chopAfter) {
|
if (!isFirst) {
|
builder.append(", chopAfter:");
|
} else {
|
builder.append("chopAfter:");
|
isFirst = false;
|
}
|
StaticUtils.toRFC3641StringValue(builder, dn.toString());
|
}
|
}
|
|
builder.append(" }");
|
}
|
|
// Output the optional minimum depth.
|
if (getMinimumDepth() > 0) {
|
if (!isFirstElement) {
|
builder.append(",");
|
} else {
|
isFirstElement = false;
|
}
|
builder.append(" minimum ");
|
builder.append(getMinimumDepth());
|
}
|
|
// Output the optional maximum depth.
|
if (getMaximumDepth() >= 0) {
|
if (!isFirstElement) {
|
builder.append(",");
|
} else {
|
isFirstElement = false;
|
}
|
builder.append(" maximum ");
|
builder.append(getMaximumDepth());
|
}
|
|
// Output the optional refinements.
|
if (refinements != null) {
|
if (!isFirstElement) {
|
builder.append(",");
|
} else {
|
isFirstElement = false;
|
}
|
builder.append(" specificationFilter ");
|
refinements.toString(builder);
|
}
|
|
builder.append(" }");
|
|
return builder;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public boolean equals(Object obj) {
|
|
if (this == obj) {
|
return true;
|
}
|
|
if (obj instanceof RFC3672SubtreeSpecification) {
|
RFC3672SubtreeSpecification other = (RFC3672SubtreeSpecification) obj;
|
|
if (!commonComponentsEquals(other)) {
|
return false;
|
}
|
|
if (!getBaseDN().equals(other.getBaseDN())) {
|
return false;
|
}
|
|
if (refinements != null) {
|
return refinements.equals(other.refinements);
|
} else {
|
return refinements == other.refinements;
|
}
|
}
|
|
return false;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public int hashCode() {
|
|
int hash = commonComponentsHashCode();
|
|
hash = hash * 31 + getBaseDN().hashCode();
|
|
if (refinements != null) {
|
hash = hash * 31 + refinements.hashCode();
|
}
|
|
return hash;
|
}
|
}
|
