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/*
* ====================
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of the Common Development
* and Distribution License("CDDL") (the "License"). You may not use this file
* except in compliance with the License.
*
* You can obtain a copy of the License at
* http://IdentityConnectors.dev.java.net/legal/license.txt
* See the License for the specific language governing permissions and limitations
* under the License.
*
* When distributing the Covered Code, include this CDDL Header Notice in each file
* and include the License file at identityconnectors/legal/license.txt.
* If applicable, add the following below this CDDL Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
* ====================
*/
package org.identityconnectors.framework.common.objects;
import static org.identityconnectors.framework.common.objects.NameUtil.nameHashCode;
import static org.identityconnectors.framework.common.objects.NameUtil.namesEqual;
import java.util.Collections;
import java.util.EnumSet;
import java.util.Set;
import org.identityconnectors.common.Assertions;
import org.identityconnectors.common.CollectionUtil;
import org.identityconnectors.common.StringUtil;
import org.identityconnectors.common.security.GuardedString;
import org.identityconnectors.framework.api.operations.GetApiOp;
import org.identityconnectors.framework.api.operations.SearchApiOp;
import org.identityconnectors.framework.api.operations.SyncApiOp;
import org.identityconnectors.framework.common.FrameworkUtil;
import org.identityconnectors.framework.common.serializer.SerializerUtil;
/**
* AttributeInfo is meta data responsible for describing an
* {@link Attribute}. It can be programmatically determined at runtime or
* statically constructed. The class determines if an {@link Attribute} is
* required, readable, writable, or nullable. In also includes the native type
* and name. It is recommended that date fields be represented as a long with
* time zone UTC. It should be up to the display or separate attributes if the
* time zone is necessary.
*/
public final class AttributeInfo {
private final String _name;
private final Class _type;
private final Set _flags;
/**
* Enum of modifier flags to use for attributes. Note that
* this enum is designed for configuration by exception such that
* an empty set of flags are the defaults:
*
* - updateable
* - creatable
* - returned by default
* - readable
* - single-valued
* - optional
*
*/
public static enum Flags {
REQUIRED,
MULTIVALUED,
NOT_CREATABLE,
NOT_UPDATEABLE,
NOT_READABLE,
NOT_RETURNED_BY_DEFAULT
}
AttributeInfo(final String name, final Class type,
final Set flags) {
if (StringUtil.isBlank(name)) {
throw new IllegalStateException("Name must not be blank!");
}
if ((OperationalAttributes.PASSWORD_NAME.equals(name) ||
OperationalAttributes.CURRENT_PASSWORD_NAME.equals(name)) &&
!GuardedString.class.equals(type)) {
final String MSG = "Password based attributes must be of type GuardedString.";
throw new IllegalArgumentException(MSG);
}
Assertions.nullCheck(flags, "flags");
// check the type..
FrameworkUtil.checkAttributeType(type);
_name = name;
_type = type;
_flags = Collections.unmodifiableSet(EnumSet.copyOf(flags));
if (!isReadable() && isReturnedByDefault()) {
throw new IllegalArgumentException("Attribute "+name+" is flagged as not-readable, so it should also be as not-returned-by-default.");
}
}
/**
* The native name of the attribute.
*
* @return the native name of the attribute its describing.
*/
public String getName() {
return _name;
}
/**
* The basic type associated with this attribute. All primitives are
* supported.
*
* @return the native type if uses.
*/
public Class getType() {
return _type;
}
/**
* Returns the set of flags associated with the attribute.
* @return the set of flags associated with the attribute
*/
public Set getFlags() {
return _flags;
}
/**
* Determines if the attribute is readable.
*
* @return true if the attribute is readable else false.
*/
public boolean isReadable() {
return !_flags.contains(Flags.NOT_READABLE);
}
/**
* Determines if the attribute is writable on create.
*
* @return true if the attribute is writable on create else false.
*/
public boolean isCreateable() {
return !_flags.contains(Flags.NOT_CREATABLE);
}
/**
* Determines if the attribute is writable on update.
*
* @return true if the attribute is writable on update else false.
*/
public boolean isUpdateable() {
return !_flags.contains(Flags.NOT_UPDATEABLE);
}
/**
* Determines whether this attribute is required for creates.
*
* @return true if the attribute is required for an object else false.
*/
public boolean isRequired() {
return _flags.contains(Flags.REQUIRED);
}
/**
* Determines if this attribute can handle multiple values. There is a
* special case with byte[] since in most instances this denotes a single
* object.
*
* @return true if the attribute is multi-value otherwise false.
*/
public boolean isMultiValued() {
return _flags.contains(Flags.MULTIVALUED);
}
/**
* Determines if the attribute is returned by default. Indicates if an
* {@link Attribute} will be returned during {@link SearchApiOp}, {@link SyncApiOp}
* or {@link GetApiOp} inside a {@link ConnectorObject} by default. The default
* value is true.
*
* @return false iff the attribute should not be returned by default.
*/
public boolean isReturnedByDefault() {
return !_flags.contains(Flags.NOT_RETURNED_BY_DEFAULT);
}
/**
* Determines if the name parameter matches this {@link AttributeInfo}.
*/
public boolean is(String name) {
return namesEqual(_name, name);
}
// =======================================================================
// Object Overrides
// =======================================================================
@Override
public boolean equals(Object obj) {
boolean ret = false;
if (obj instanceof AttributeInfo) {
AttributeInfo other = (AttributeInfo) obj;
if (!is(other.getName())) {
return false;
}
if (!getType().equals(other.getType())) {
return false;
}
if (!CollectionUtil.equals(_flags, other._flags)) {
return false;
}
return true;
}
return ret;
}
@Override
public int hashCode() {
return nameHashCode(_name);
}
@Override
public String toString() {
return SerializerUtil.serializeXmlObject(this, false);
}
}