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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.Map;
import java.util.LinkedHashMap;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
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 name form schema
* element.
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class NameFormDefinition
extends SchemaElement
{
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -816231530223449984L;
// Indicates whether this name form is declared obsolete.
private final boolean isObsolete;
// The set of extensions for this name form.
private final Map extensions;
// The description for this name form.
private final String description;
// The string representation of this name form.
private final String nameFormString;
// The OID for this name form.
private final String oid;
// The set of names for this name form.
private final String[] names;
// The name or OID of the structural object class with which this name form
// is associated.
private final String structuralClass;
// The names/OIDs of the optional attributes.
private final String[] optionalAttributes;
// The names/OIDs of the required attributes.
private final String[] requiredAttributes;
/**
* Creates a new name form from the provided string representation.
*
* @param s The string representation of the name form to create, using the
* syntax described in RFC 4512 section 4.1.7.2. It must not be
* {@code null}.
*
* @throws LDAPException If the provided string cannot be decoded as a name
* form definition.
*/
public NameFormDefinition(final String s)
throws LDAPException
{
Validator.ensureNotNull(s);
nameFormString = s.trim();
// The first character must be an opening parenthesis.
final int length = nameFormString.length();
if (length == 0)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_EMPTY.get());
}
else if (nameFormString.charAt(0) != '(')
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_NO_OPENING_PAREN.get(
nameFormString));
}
// Skip over any spaces until we reach the start of the OID, then read the
// OID until we find the next space.
int pos = skipSpaces(nameFormString, 1, length);
StringBuilder buffer = new StringBuilder();
pos = readOID(nameFormString, pos, length, buffer);
oid = buffer.toString();
// Technically, name form 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 nameList = new ArrayList<>(1);
final ArrayList reqAttrs = new ArrayList<>(10);
final ArrayList optAttrs = new ArrayList<>(10);
final Map exts =
new LinkedHashMap<>(StaticUtils.computeMapCapacity(5));
Boolean obsolete = null;
String descr = null;
String oc = null;
while (true)
{
// Skip over any spaces until we find the next element.
pos = skipSpaces(nameFormString, 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) && (nameFormString.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 = nameFormString.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_NF_DECODE_CLOSE_NOT_AT_END.get(
nameFormString));
}
break;
}
else if (lowerToken.equals("name"))
{
if (nameList.isEmpty())
{
pos = skipSpaces(nameFormString, pos, length);
pos = readQDStrings(nameFormString, pos, length, nameList);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "NAME"));
}
}
else if (lowerToken.equals("desc"))
{
if (descr == null)
{
pos = skipSpaces(nameFormString, pos, length);
buffer = new StringBuilder();
pos = readQDString(nameFormString, pos, length, buffer);
descr = buffer.toString();
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "DESC"));
}
}
else if (lowerToken.equals("obsolete"))
{
if (obsolete == null)
{
obsolete = true;
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "OBSOLETE"));
}
}
else if (lowerToken.equals("oc"))
{
if (oc == null)
{
pos = skipSpaces(nameFormString, pos, length);
buffer = new StringBuilder();
pos = readOID(nameFormString, pos, length, buffer);
oc = buffer.toString();
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "OC"));
}
}
else if (lowerToken.equals("must"))
{
if (reqAttrs.isEmpty())
{
pos = skipSpaces(nameFormString, pos, length);
pos = readOIDs(nameFormString, pos, length, reqAttrs);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "MUST"));
}
}
else if (lowerToken.equals("may"))
{
if (optAttrs.isEmpty())
{
pos = skipSpaces(nameFormString, pos, length);
pos = readOIDs(nameFormString, pos, length, optAttrs);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_MULTIPLE_ELEMENTS.get(
nameFormString, "MAY"));
}
}
else if (lowerToken.startsWith("x-"))
{
pos = skipSpaces(nameFormString, pos, length);
final ArrayList valueList = new ArrayList<>(5);
pos = readQDStrings(nameFormString, pos, length, valueList);
final String[] values = new String[valueList.size()];
valueList.toArray(values);
if (exts.containsKey(token))
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_DUP_EXT.get(nameFormString,
token));
}
exts.put(token, values);
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_UNEXPECTED_TOKEN.get(
nameFormString, token));
}
}
description = descr;
structuralClass = oc;
if (structuralClass == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_NO_OC.get(nameFormString));
}
names = new String[nameList.size()];
nameList.toArray(names);
requiredAttributes = new String[reqAttrs.size()];
reqAttrs.toArray(requiredAttributes);
if (reqAttrs.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_NF_DECODE_NO_MUST.get(nameFormString));
}
optionalAttributes = new String[optAttrs.size()];
optAttrs.toArray(optionalAttributes);
isObsolete = (obsolete != null);
extensions = Collections.unmodifiableMap(exts);
}
/**
* Creates a new name form with the provided information.
*
* @param oid The OID for this name form. It must not be
* {@code null}.
* @param name The name for this name form. It may be
* {@code null} or empty if the name form should
* only be referenced by OID.
* @param description The description for this name form. It may be
* {@code null} if there is no description.
* @param structuralClass The name or OID of the structural object class
* with which this name form is associated. It
* must not be {@code null}.
* @param requiredAttribute he name or OID of the attribute which must be
* present the RDN for entries with the associated
* structural class. It must not be {@code null}.
* @param extensions The set of extensions for this name form. It
* may be {@code null} or empty if there should
* not be any extensions.
*/
public NameFormDefinition(final String oid, final String name,
final String description,
final String structuralClass,
final String requiredAttribute,
final Map extensions)
{
this(oid, ((name == null) ? null : new String[] { name }), description,
false, structuralClass, new String[] { requiredAttribute }, null,
extensions);
}
/**
* Creates a new name form with the provided information.
*
* @param oid The OID for this name form. It must not be
* {@code null}.
* @param names The set of names for this name form. It may
* be {@code null} or empty if the name form
* should only be referenced by OID.
* @param description The description for this name form. It may be
* {@code null} if there is no description.
* @param isObsolete Indicates whether this name form is declared
* obsolete.
* @param structuralClass The name or OID of the structural object class
* with which this name form is associated. It
* must not be {@code null}.
* @param requiredAttributes The names/OIDs of the attributes which must be
* present the RDN for entries with the associated
* structural class. It must not be {@code null}
* or empty.
* @param optionalAttributes The names/OIDs of the attributes which may
* optionally be present in the RDN for entries
* with the associated structural class. It may
* be {@code null} or empty
* @param extensions The set of extensions for this name form. It
* may be {@code null} or empty if there should
* not be any extensions.
*/
public NameFormDefinition(final String oid, final String[] names,
final String description,
final boolean isObsolete,
final String structuralClass,
final String[] requiredAttributes,
final String[] optionalAttributes,
final Map extensions)
{
Validator.ensureNotNull(oid, structuralClass, requiredAttributes);
Validator.ensureFalse(requiredAttributes.length == 0);
this.oid = oid;
this.isObsolete = isObsolete;
this.description = description;
this.structuralClass = structuralClass;
this.requiredAttributes = requiredAttributes;
if (names == null)
{
this.names = StaticUtils.NO_STRINGS;
}
else
{
this.names = names;
}
if (optionalAttributes == null)
{
this.optionalAttributes = StaticUtils.NO_STRINGS;
}
else
{
this.optionalAttributes = optionalAttributes;
}
if (extensions == null)
{
this.extensions = Collections.emptyMap();
}
else
{
this.extensions = Collections.unmodifiableMap(extensions);
}
final StringBuilder buffer = new StringBuilder();
createDefinitionString(buffer);
nameFormString = buffer.toString();
}
/**
* Constructs a string representation of this name form definition in the
* provided buffer.
*
* @param buffer The buffer in which to construct a string representation of
* this name form definition.
*/
private void createDefinitionString(final StringBuilder buffer)
{
buffer.append("( ");
buffer.append(oid);
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(" OC ");
buffer.append(structuralClass);
if (requiredAttributes.length == 1)
{
buffer.append(" MUST ");
buffer.append(requiredAttributes[0]);
}
else if (requiredAttributes.length > 1)
{
buffer.append(" MUST (");
for (int i=0; i < requiredAttributes.length; i++)
{
if (i >0)
{
buffer.append(" $ ");
}
else
{
buffer.append(' ');
}
buffer.append(requiredAttributes[i]);
}
buffer.append(" )");
}
if (optionalAttributes.length == 1)
{
buffer.append(" MAY ");
buffer.append(optionalAttributes[0]);
}
else if (optionalAttributes.length > 1)
{
buffer.append(" MAY (");
for (int i=0; i < optionalAttributes.length; i++)
{
if (i > 0)
{
buffer.append(" $ ");
}
else
{
buffer.append(' ');
}
buffer.append(optionalAttributes[i]);
}
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 OID for this name form.
*
* @return The OID for this name form.
*/
public String getOID()
{
return oid;
}
/**
* Retrieves the set of names for this name form.
*
* @return The set of names for this name form, 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 name form.
* If one or more names are defined, then the first name will be used.
* Otherwise, the OID will be returned.
*
* @return The primary name that can be used to reference this name form.
*/
public String getNameOrOID()
{
if (names.length == 0)
{
return oid;
}
else
{
return names[0];
}
}
/**
* Indicates whether the provided string matches the OID or any of the names
* for this name form.
*
* @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 OID or any of the
* names for this name form, or {@code false} if not.
*/
public boolean hasNameOrOID(final String s)
{
for (final String name : names)
{
if (s.equalsIgnoreCase(name))
{
return true;
}
}
return s.equalsIgnoreCase(oid);
}
/**
* Retrieves the description for this name form, if available.
*
* @return The description for this name form, or {@code null} if there is no
* description defined.
*/
public String getDescription()
{
return description;
}
/**
* Indicates whether this name form is declared obsolete.
*
* @return {@code true} if this name form is declared obsolete, or
* {@code false} if it is not.
*/
public boolean isObsolete()
{
return isObsolete;
}
/**
* Retrieves the name or OID of the structural object class associated with
* this name form.
*
* @return The name or OID of the structural object class associated with
* this name form.
*/
public String getStructuralClass()
{
return structuralClass;
}
/**
* Retrieves the names or OIDs of the attributes that are required to be
* present in the RDN of entries with the associated structural object class.
*
* @return The names or OIDs of the attributes that are required to be
* present in the RDN of entries with the associated structural
* object class.
*/
public String[] getRequiredAttributes()
{
return requiredAttributes;
}
/**
* Retrieves the names or OIDs of the attributes that may optionally be
* present in the RDN of entries with the associated structural object class.
*
* @return The names or OIDs of the attributes that may optionally be
* present in the RDN of entries with the associated structural
* object class, or an empty array if there are no optional
* attributes.
*/
public String[] getOptionalAttributes()
{
return optionalAttributes;
}
/**
* Retrieves the set of extensions for this name form. 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 name form.
*/
public Map getExtensions()
{
return extensions;
}
/**
* {@inheritDoc}
*/
@Override()
public int hashCode()
{
return oid.hashCode();
}
/**
* {@inheritDoc}
*/
@Override()
public boolean equals(final Object o)
{
if (o == null)
{
return false;
}
if (o == this)
{
return true;
}
if (! (o instanceof NameFormDefinition))
{
return false;
}
final NameFormDefinition d = (NameFormDefinition) o;
return (oid.equals(d.oid) &&
structuralClass.equalsIgnoreCase(d.structuralClass) &&
StaticUtils.stringsEqualIgnoreCaseOrderIndependent(names, d.names) &&
StaticUtils.stringsEqualIgnoreCaseOrderIndependent(requiredAttributes,
d.requiredAttributes) &&
StaticUtils.stringsEqualIgnoreCaseOrderIndependent(optionalAttributes,
d.optionalAttributes) &&
StaticUtils.bothNullOrEqualIgnoreCase(description, d.description) &&
(isObsolete == d.isObsolete) &&
extensionsEqual(extensions, d.extensions));
}
/**
* Retrieves a string representation of this name form definition, in the
* format described in RFC 4512 section 4.1.7.2.
*
* @return A string representation of this name form definition.
*/
@Override()
public String toString()
{
return nameFormString;
}
}
