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/*
* Copyright 2007-2019 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright (C) 2008-2019 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.sdk.schema;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.LinkedHashMap;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.ldap.sdk.schema.SchemaMessages.*;
/**
* This class provides a data structure that describes an LDAP DIT structure
* rule schema element.
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class DITStructureRuleDefinition
extends SchemaElement
{
/**
* A pre-allocated zero-element integer array.
*/
private static final int[] NO_INTS = new int[0];
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -3233223742542121140L;
// Indicates whether this DIT structure rule is declared obsolete.
private final boolean isObsolete;
// The rule ID for this DIT structure rule.
private final int ruleID;
// The set of superior rule IDs for this DIT structure rule.
private final int[] superiorRuleIDs;
// The set of extensions for this DIT content rule.
private final Map extensions;
// The description for this DIT content rule.
private final String description;
// The string representation of this DIT structure rule.
private final String ditStructureRuleString;
// The name/OID of the name form with which this DIT structure rule is
// associated.
private final String nameFormID;
// The set of names for this DIT structure rule.
private final String[] names;
/**
* Creates a new DIT structure rule from the provided string representation.
*
* @param s The string representation of the DIT structure rule to create,
* using the syntax described in RFC 4512 section 4.1.7.1. It must
* not be {@code null}.
*
* @throws LDAPException If the provided string cannot be decoded as a DIT
* structure rule definition.
*/
public DITStructureRuleDefinition(final String s)
throws LDAPException
{
Validator.ensureNotNull(s);
ditStructureRuleString = s.trim();
// The first character must be an opening parenthesis.
final int length = ditStructureRuleString.length();
if (length == 0)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_EMPTY.get());
}
else if (ditStructureRuleString.charAt(0) != '(')
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_NO_OPENING_PAREN.get(
ditStructureRuleString));
}
// Skip over any spaces until we reach the start of the OID, then read the
// rule ID until we find the next space.
int pos = skipSpaces(ditStructureRuleString, 1, length);
StringBuilder buffer = new StringBuilder();
pos = readOID(ditStructureRuleString, pos, length, buffer);
final String ruleIDStr = buffer.toString();
try
{
ruleID = Integer.parseInt(ruleIDStr);
}
catch (final NumberFormatException nfe)
{
Debug.debugException(nfe);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_RULE_ID_NOT_INT.get(
ditStructureRuleString),
nfe);
}
// Technically, DIT structure elements are supposed to appear in a specific
// order, but we'll be lenient and allow remaining elements to come in any
// order.
final ArrayList supList = new ArrayList<>(1);
final ArrayList nameList = new ArrayList<>(1);
final Map exts =
new LinkedHashMap<>(StaticUtils.computeMapCapacity(5));
Boolean obsolete = null;
String descr = null;
String nfID = null;
while (true)
{
// Skip over any spaces until we find the next element.
pos = skipSpaces(ditStructureRuleString, pos, length);
// Read until we find the next space or the end of the string. Use that
// token to figure out what to do next.
final int tokenStartPos = pos;
while ((pos < length) && (ditStructureRuleString.charAt(pos) != ' '))
{
pos++;
}
// It's possible that the token could be smashed right up against the
// closing parenthesis. If that's the case, then extract just the token
// and handle the closing parenthesis the next time through.
String token = ditStructureRuleString.substring(tokenStartPos, pos);
if ((token.length() > 1) && (token.endsWith(")")))
{
token = token.substring(0, token.length() - 1);
pos--;
}
final String lowerToken = StaticUtils.toLowerCase(token);
if (lowerToken.equals(")"))
{
// This indicates that we're at the end of the value. There should not
// be any more closing characters.
if (pos < length)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_CLOSE_NOT_AT_END.get(
ditStructureRuleString));
}
break;
}
else if (lowerToken.equals("name"))
{
if (nameList.isEmpty())
{
pos = skipSpaces(ditStructureRuleString, pos, length);
pos = readQDStrings(ditStructureRuleString, pos, length, nameList);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_MULTIPLE_ELEMENTS.get(
ditStructureRuleString, "NAME"));
}
}
else if (lowerToken.equals("desc"))
{
if (descr == null)
{
pos = skipSpaces(ditStructureRuleString, pos, length);
buffer = new StringBuilder();
pos = readQDString(ditStructureRuleString, pos, length, buffer);
descr = buffer.toString();
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_MULTIPLE_ELEMENTS.get(
ditStructureRuleString, "DESC"));
}
}
else if (lowerToken.equals("obsolete"))
{
if (obsolete == null)
{
obsolete = true;
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_MULTIPLE_ELEMENTS.get(
ditStructureRuleString, "OBSOLETE"));
}
}
else if (lowerToken.equals("form"))
{
if (nfID == null)
{
pos = skipSpaces(ditStructureRuleString, pos, length);
buffer = new StringBuilder();
pos = readOID(ditStructureRuleString, pos, length, buffer);
nfID = buffer.toString();
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_MULTIPLE_ELEMENTS.get(
ditStructureRuleString, "FORM"));
}
}
else if (lowerToken.equals("sup"))
{
if (supList.isEmpty())
{
final ArrayList supStrs = new ArrayList<>(1);
pos = skipSpaces(ditStructureRuleString, pos, length);
pos = readOIDs(ditStructureRuleString, pos, length, supStrs);
supList.ensureCapacity(supStrs.size());
for (final String supStr : supStrs)
{
try
{
supList.add(Integer.parseInt(supStr));
}
catch (final NumberFormatException nfe)
{
Debug.debugException(nfe);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_SUP_ID_NOT_INT.get(
ditStructureRuleString),
nfe);
}
}
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_MULTIPLE_ELEMENTS.get(
ditStructureRuleString, "SUP"));
}
}
else if (lowerToken.startsWith("x-"))
{
pos = skipSpaces(ditStructureRuleString, pos, length);
final ArrayList valueList = new ArrayList<>(5);
pos = readQDStrings(ditStructureRuleString, pos, length, valueList);
final String[] values = new String[valueList.size()];
valueList.toArray(values);
if (exts.containsKey(token))
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_DUP_EXT.get(
ditStructureRuleString, token));
}
exts.put(token, values);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_UNEXPECTED_TOKEN.get(
ditStructureRuleString, token));
}
}
description = descr;
nameFormID = nfID;
if (nameFormID == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_DSR_DECODE_NO_FORM.get(
ditStructureRuleString));
}
names = new String[nameList.size()];
nameList.toArray(names);
superiorRuleIDs = new int[supList.size()];
for (int i=0; i < superiorRuleIDs.length; i++)
{
superiorRuleIDs[i] = supList.get(i);
}
isObsolete = (obsolete != null);
extensions = Collections.unmodifiableMap(exts);
}
/**
* Creates a new DIT structure rule with the provided information.
*
* @param ruleID The rule ID for this DIT structure rule.
* @param name The name for this DIT structure rule. It may be
* {@code null} if the DIT structure rule should only
* be referenced by rule ID.
* @param description The description for this DIT structure rule. It
* may be {@code null} if there is no description.
* @param nameFormID The name or OID of the name form with which this
* DIT structure rule is associated. It must not be
* {@code null}.
* @param superiorRuleID The superior rule ID for this DIT structure rule.
* It may be {@code null} if there are no superior
* rule IDs.
* @param extensions The set of extensions for this DIT structure rule.
* It may be {@code null} or empty if there are no
* extensions.
*/
public DITStructureRuleDefinition(final int ruleID, final String name,
final String description,
final String nameFormID,
final Integer superiorRuleID,
final Map extensions)
{
this(ruleID, ((name == null) ? null : new String[] { name }), description,
false, nameFormID,
((superiorRuleID == null) ? null : new int[] { superiorRuleID }),
extensions);
}
/**
* Creates a new DIT structure rule with the provided information.
*
* @param ruleID The rule ID for this DIT structure rule.
* @param names The set of names for this DIT structure rule. It
* may be {@code null} or empty if the DIT structure
* rule should only be referenced by rule ID.
* @param description The description for this DIT structure rule. It
* may be {@code null} if there is no description.
* @param isObsolete Indicates whether this DIT structure rule is
* declared obsolete.
* @param nameFormID The name or OID of the name form with which this
* DIT structure rule is associated. It must not be
* {@code null}.
* @param superiorRuleIDs The superior rule IDs for this DIT structure rule.
* It may be {@code null} or empty if there are no
* superior rule IDs.
* @param extensions The set of extensions for this DIT structure rule.
* It may be {@code null} or empty if there are no
* extensions.
*/
public DITStructureRuleDefinition(final int ruleID, final String[] names,
final String description,
final boolean isObsolete,
final String nameFormID,
final int[] superiorRuleIDs,
final Map extensions)
{
Validator.ensureNotNull(nameFormID);
this.ruleID = ruleID;
this.description = description;
this.isObsolete = isObsolete;
this.nameFormID = nameFormID;
if (names == null)
{
this.names = StaticUtils.NO_STRINGS;
}
else
{
this.names = names;
}
if (superiorRuleIDs == null)
{
this.superiorRuleIDs = NO_INTS;
}
else
{
this.superiorRuleIDs = superiorRuleIDs;
}
if (extensions == null)
{
this.extensions = Collections.emptyMap();
}
else
{
this.extensions = Collections.unmodifiableMap(extensions);
}
final StringBuilder buffer = new StringBuilder();
createDefinitionString(buffer);
ditStructureRuleString = buffer.toString();
}
/**
* Constructs a string representation of this DIT content rule definition in
* the provided buffer.
*
* @param buffer The buffer in which to construct a string representation of
* this DIT content rule definition.
*/
private void createDefinitionString(final StringBuilder buffer)
{
buffer.append("( ");
buffer.append(ruleID);
if (names.length == 1)
{
buffer.append(" NAME '");
buffer.append(names[0]);
buffer.append('\'');
}
else if (names.length > 1)
{
buffer.append(" NAME (");
for (final String name : names)
{
buffer.append(" '");
buffer.append(name);
buffer.append('\'');
}
buffer.append(" )");
}
if (description != null)
{
buffer.append(" DESC '");
encodeValue(description, buffer);
buffer.append('\'');
}
if (isObsolete)
{
buffer.append(" OBSOLETE");
}
buffer.append(" FORM ");
buffer.append(nameFormID);
if (superiorRuleIDs.length == 1)
{
buffer.append(" SUP ");
buffer.append(superiorRuleIDs[0]);
}
else if (superiorRuleIDs.length > 1)
{
buffer.append(" SUP (");
for (final int supID : superiorRuleIDs)
{
buffer.append(" $ ");
buffer.append(supID);
}
buffer.append(" )");
}
for (final Map.Entry e : extensions.entrySet())
{
final String name = e.getKey();
final String[] values = e.getValue();
if (values.length == 1)
{
buffer.append(' ');
buffer.append(name);
buffer.append(" '");
encodeValue(values[0], buffer);
buffer.append('\'');
}
else
{
buffer.append(' ');
buffer.append(name);
buffer.append(" (");
for (final String value : values)
{
buffer.append(" '");
encodeValue(value, buffer);
buffer.append('\'');
}
buffer.append(" )");
}
}
buffer.append(" )");
}
/**
* Retrieves the rule ID for this DIT structure rule.
*
* @return The rule ID for this DIT structure rule.
*/
public int getRuleID()
{
return ruleID;
}
/**
* Retrieves the set of names for this DIT structure rule.
*
* @return The set of names for this DIT structure rule, or an empty array if
* it does not have any names.
*/
public String[] getNames()
{
return names;
}
/**
* Retrieves the primary name that can be used to reference this DIT structure
* rule. If one or more names are defined, then the first name will be used.
* Otherwise, the string representation of the rule ID will be returned.
*
* @return The primary name that can be used to reference this DIT structure
* rule.
*/
public String getNameOrRuleID()
{
if (names.length == 0)
{
return String.valueOf(ruleID);
}
else
{
return names[0];
}
}
/**
* Indicates whether the provided string matches the rule ID or any of the
* names for this DIT structure rule.
*
* @param s The string for which to make the determination. It must not be
* {@code null}.
*
* @return {@code true} if the provided string matches the rule ID or any of
* the names for this DIT structure rule, or {@code false} if not.
*/
public boolean hasNameOrRuleID(final String s)
{
for (final String name : names)
{
if (s.equalsIgnoreCase(name))
{
return true;
}
}
return s.equalsIgnoreCase(String.valueOf(ruleID));
}
/**
* Retrieves the description for this DIT structure rule, if available.
*
* @return The description for this DIT structure rule, or {@code null} if
* there is no description defined.
*/
public String getDescription()
{
return description;
}
/**
* Indicates whether this DIT structure rule is declared obsolete.
*
* @return {@code true} if this DIT structure rule is declared obsolete, or
* {@code false} if it is not.
*/
public boolean isObsolete()
{
return isObsolete;
}
/**
* Retrieves the name or OID of the name form with which this DIT structure
* rule is associated.
*
* @return The name or OID of the name form with which this DIT structure
* rule is associated.
*/
public String getNameFormID()
{
return nameFormID;
}
/**
* Retrieves the rule IDs of the superior rules for this DIT structure rule.
*
* @return The rule IDs of the superior rules for this DIT structure rule, or
* an empty array if there are no superior rule IDs.
*/
public int[] getSuperiorRuleIDs()
{
return superiorRuleIDs;
}
/**
* Retrieves the set of extensions for this DIT structure rule. They will be
* mapped from the extension name (which should start with "X-") to the set of
* values for that extension.
*
* @return The set of extensions for this DIT structure rule.
*/
public Map getExtensions()
{
return extensions;
}
/**
* {@inheritDoc}
*/
@Override()
public int hashCode()
{
return ruleID;
}
/**
* {@inheritDoc}
*/
@Override()
public boolean equals(final Object o)
{
if (o == null)
{
return false;
}
if (o == this)
{
return true;
}
if (! (o instanceof DITStructureRuleDefinition))
{
return false;
}
final DITStructureRuleDefinition d = (DITStructureRuleDefinition) o;
if ((ruleID == d.ruleID) &&
nameFormID.equalsIgnoreCase(d.nameFormID) &&
StaticUtils.stringsEqualIgnoreCaseOrderIndependent(names, d.names) &&
(isObsolete == d.isObsolete) &&
extensionsEqual(extensions, d.extensions))
{
if (superiorRuleIDs.length != d.superiorRuleIDs.length)
{
return false;
}
final HashSet s1 = new HashSet<>(
StaticUtils.computeMapCapacity(superiorRuleIDs.length));
final HashSet s2 = new HashSet<>(
StaticUtils.computeMapCapacity(superiorRuleIDs.length));
for (final int i : superiorRuleIDs)
{
s1.add(i);
}
for (final int i : d.superiorRuleIDs)
{
s2.add(i);
}
return s1.equals(s2);
}
else
{
return false;
}
}
/**
* Retrieves a string representation of this DIT structure rule definition, in
* the format described in RFC 4512 section 4.1.7.1.
*
* @return A string representation of this DIT structure rule definition.
*/
@Override()
public String toString()
{
return ditStructureRuleString;
}
}
