/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.security.acls.domain;
import org.springframework.security.acls.model.Permission;
/**
* Provides an abstract superclass for {@link Permission} implementations.
*
* @author Ben Alex
* @since 2.0.3
*/
public abstract class AbstractPermission implements Permission {
// ~ Instance fields
// ================================================================================================
protected final char code;
protected int mask;
// ~ Constructors
// ===================================================================================================
/**
* Sets the permission mask and uses the '*' character to represent active bits when
* represented as a bit pattern string.
*
* @param mask the integer bit mask for the permission
*/
protected AbstractPermission(int mask) {
this.mask = mask;
this.code = '*';
}
/**
* Sets the permission mask and uses the specified character for active bits.
*
* @param mask the integer bit mask for the permission
* @param code the character to print for each active bit in the mask (see
* {@link Permission#getPattern()})
*/
protected AbstractPermission(int mask, char code) {
this.mask = mask;
this.code = code;
}
// ~ Methods
// ========================================================================================================
public final boolean equals(Object arg0) {
if (arg0 == null) {
return false;
}
if (!(arg0 instanceof Permission)) {
return false;
}
Permission rhs = (Permission) arg0;
return (this.mask == rhs.getMask());
}
public final int getMask() {
return mask;
}
public String getPattern() {
return AclFormattingUtils.printBinary(mask, code);
}
public final String toString() {
return this.getClass().getSimpleName() + "[" + getPattern() + "=" + mask + "]";
}
public final int hashCode() {
return this.mask;
}
}