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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.core.enums;
import java.util.HashMap;
import java.util.Map;
public enum PermissionEnum {
NONE(5, "None"),
READ(10, "Read"),
WRITE(20, "Write"),
FULLACCESS(30, "Full Access"),
LOCK(40, "Lock"),
DENY(65535, "Deny");
// keeping this in sync with the number of permissions will ensure optimal memory usage
private static final int COUNT = 4;
private static final Map<Integer, PermissionEnum> rankToPermissionHash = new HashMap<Integer, PermissionEnum>(
(int) (COUNT / .75) + 1, .75f);
private static final Map<String, PermissionEnum> NameToPermissionHash = new HashMap<String, PermissionEnum>(
(int) (COUNT / .75) + 1, .75f);
private static final String[] NAME_ARRAY;
static {
NAME_ARRAY = new String[values().length];
int i = 0;
for (PermissionEnum permission : values()) {
rankToPermissionHash.put(permission.getPermId(), permission);
NameToPermissionHash.put(permission.getName(), permission);
NAME_ARRAY[i++] = permission.getName();
}
}
private int permissionId;
private String name;
public boolean add;
PermissionEnum(int permissionId, String name) {
this.permissionId = permissionId;
this.name = name;
}
public int getRank() {
return permissionId;
}
public String getName() {
return name;
}
public static PermissionEnum getPermission(int permissionId) {
return rankToPermissionHash.get(permissionId);
}
public static PermissionEnum getPermission(String name) {
return NameToPermissionHash.get(name);
}
public boolean matches(PermissionEnum toMatch) {
boolean hasPermission = false;
if (toMatch == PermissionEnum.READ && this == PermissionEnum.LOCK) {
hasPermission = true;
} else if (this == null || this == PermissionEnum.LOCK) {
hasPermission = false;
} else {
hasPermission = this.getRank() >= toMatch.getRank() && !this.equals(PermissionEnum.DENY);
}
return hasPermission;
}
public static String[] getPermissionNames() {
return NAME_ARRAY;
}
public int getPermId() {
return permissionId;
}
}
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