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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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.wildfly.common.selector;

import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.security.BasicPermission;
import java.security.Permission;

import org.wildfly.common.Assert;

/**
 * Permission to access a specific selector.
 *
 * @author David M. Lloyd
 */
public final class SelectorPermission extends BasicPermission {

    private static final long serialVersionUID = -7156787601824624014L;

    private static final int ACTION_GET = 1;
    private static final int ACTION_SET = 2;
    private static final int ACTION_CHANGE = 4;

    private final int actions;

    public SelectorPermission(final String name, final String actions) {
        super(name);
        Assert.checkNotNullParam("name", name);
        Assert.checkNotNullParam("actions", actions);
        final String[] actionArray = actions.split("\\s*,\\s*");
        int q = 0;
        for (String action : actionArray) {
            if (action.equalsIgnoreCase("get")) {
                q |= ACTION_GET;
            } else if (action.equalsIgnoreCase("set")) {
                q |= ACTION_SET;
            } else if (action.equalsIgnoreCase("change")) {
                q |= ACTION_CHANGE;
            } else if (action.equals("*")) {
                q |= ACTION_GET | ACTION_SET | ACTION_CHANGE;
                break;
            }
        }
        this.actions = q;
    }

    public String getActions() {
        // few enough
        final int maskedActions = actions & 0b111;
        switch (maskedActions) {
            case 0b000: return "";
            case 0b001: return "get";
            case 0b010: return "set";
            case 0b011: return "get,set";
            case 0b100: return "change";
            case 0b101: return "get,change";
            case 0b110: return "set,change";
            case 0b111: return "get,set,change";
            default: throw Assert.impossibleSwitchCase(maskedActions);
        }
    }

    public boolean implies(final Permission p) {
        return p instanceof SelectorPermission && implies((SelectorPermission) p);
    }

    public boolean implies(final SelectorPermission p) {
        return p != null && (p.actions & actions) == p.actions && super.implies(p);
    }

    public boolean equals(final Object p) {
        return p instanceof SelectorPermission && equals((SelectorPermission) p);
    }

    public boolean equals(final SelectorPermission p) {
        return p != null && (p.actions == actions) && super.equals(p);
    }

    private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
        ois.defaultReadObject();
        final int actions = this.actions;
        if ((actions & 0b111) != actions) {
            throw new InvalidObjectException("Invalid permission actions");
        }
    }
}