org.acegisecurity.acl.basic.SimpleAclEntry Maven / Gradle / Ivy
/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* 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.acegisecurity.acl.basic;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Stores some privileges typical of a domain object.
*
* @author Ben Alex
* @version $Id: SimpleAclEntry.java 1597 2006-08-22 17:57:18Z carlossg $
*/
public class SimpleAclEntry extends AbstractBasicAclEntry {
//~ Static fields/initializers =====================================================================================
private static final Log logger = LogFactory.getLog(SimpleAclEntry.class);
// Base permissions we permit
public static final int NOTHING = 0;
public static final int ADMINISTRATION = (int) Math.pow(2, 0);
public static final int READ = (int) Math.pow(2, 1);
public static final int WRITE = (int) Math.pow(2, 2);
public static final int CREATE = (int) Math.pow(2, 3);
public static final int DELETE = (int) Math.pow(2, 4);
// Combinations of base permissions we permit
public static final int READ_WRITE_CREATE_DELETE = READ | WRITE | CREATE | DELETE;
public static final int READ_WRITE_CREATE = READ | WRITE | CREATE;
public static final int READ_WRITE = READ | WRITE;
public static final int READ_WRITE_DELETE = READ | WRITE | DELETE;
// Array required by the abstract superclass via getValidPermissions()
private static final int[] VALID_PERMISSIONS = {
NOTHING, ADMINISTRATION, READ, WRITE, CREATE, DELETE, READ_WRITE_CREATE_DELETE, READ_WRITE_CREATE,
READ_WRITE, READ_WRITE_DELETE
};
private static final String[] VALID_PERMISSIONS_AS_STRING = {
"NOTHING", "ADMINISTRATION", "READ", "WRITE", "CREATE", "DELETE", "READ_WRITE_CREATE_DELETE", "READ_WRITE_CREATE",
"READ_WRITE", "READ_WRITE_DELETE" };
//~ Constructors ===================================================================================================
/**
* Allows {@link BasicAclDao} implementations to construct this object
* using newInstance()
.
*
*
* Normal classes should not use this default constructor.
*
*/
public SimpleAclEntry() {
super();
}
public SimpleAclEntry(Object recipient, AclObjectIdentity aclObjectIdentity,
AclObjectIdentity aclObjectParentIdentity, int mask) {
super(recipient, aclObjectIdentity, aclObjectParentIdentity, mask);
}
//~ Methods ========================================================================================================
/**
* @return a copy of the permissions array, changes to the values won't affect this class.
*/
public int[] getValidPermissions() {
return (int[]) VALID_PERMISSIONS.clone();
}
public String printPermissionsBlock(int i) {
StringBuffer sb = new StringBuffer();
if (isPermitted(i, ADMINISTRATION)) {
sb.append('A');
} else {
sb.append('-');
}
if (isPermitted(i, READ)) {
sb.append('R');
} else {
sb.append('-');
}
if (isPermitted(i, WRITE)) {
sb.append('W');
} else {
sb.append('-');
}
if (isPermitted(i, CREATE)) {
sb.append('C');
} else {
sb.append('-');
}
if (isPermitted(i, DELETE)) {
sb.append('D');
} else {
sb.append('-');
}
return sb.toString();
}
/**
* Parse a permission {@link String} literal and return associated value.
*
* @param permission one of the field names that represent a permission: ADMINISTRATION
,
* READ
, WRITE
,...
* @return the value associated to that permission
* @throws IllegalArgumentException if argument is not a valid permission
*/
public static int parsePermission(String permission) {
for (int i = 0; i < VALID_PERMISSIONS_AS_STRING.length; i++) {
if (VALID_PERMISSIONS_AS_STRING[i].equalsIgnoreCase(permission)) {
return VALID_PERMISSIONS[i];
}
}
throw new IllegalArgumentException("Permission provided does not exist: " + permission);
}
/**
* Parse a list of permission {@link String} literals and return associated values.
*
* @param permissions array with permissions as {@link String}
* @see #parsePermission(String) for valid values
*/
public static int[] parsePermissions(String[] permissions) {
int[] requirepermissionAsIntArray = new int[permissions.length];
for (int i = 0; i < requirepermissionAsIntArray.length; i++) {
requirepermissionAsIntArray[i] = parsePermission(permissions[i]);
}
return requirepermissionAsIntArray;
}
}
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