org.ow2.authzforce.core.pdp.api.BaseDecisionResult.java Source code

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Here is the source code for org.ow2.authzforce.core.pdp.api.BaseDecisionResult.java

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/**
 * Copyright 2012-2018 Thales Services SAS.
 *
 * This file is part of AuthzForce CE.
 *
 * 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.ow2.authzforce.core.pdp.api;

import java.util.Objects;

import com.google.common.collect.ImmutableList;

import oasis.names.tc.xacml._3_0.core.schema.wd_17.Status;

/**
 * This class provides a skeletal implementation of the {@link DecisionResult} interface to minimize the effort required to implement this interface. Note that this class only overrides/implements
 * {@link #equals(Object)}, {@link #hashCode()} and {@link #getStatus()}.
 */
public abstract class BaseDecisionResult implements DecisionResult {
    private final Status status;

    private transient volatile int hashCode = 0;

    protected BaseDecisionResult(final Status status) {
        this.status = status;
    }

    @Override
    public final Status getStatus() {
        return this.status;
    }

    /** {@inheritDoc} */
    @Override
    public final int hashCode() {
        if (hashCode == 0) {
            hashCode = Objects.hash(this.getDecision(), this.getExtendedIndeterminate(), this.status,
                    this.getPepActions());
        }

        return hashCode;
    }

    /** {@inheritDoc} */
    @Override
    public final boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof DecisionResult)) {
            return false;
        }

        final DecisionResult other = (DecisionResult) obj;
        if (this.getDecision() != other.getDecision()
                || this.getExtendedIndeterminate() != other.getExtendedIndeterminate()) {
            return false;
        }

        // Status is optional in XACML
        if (!Objects.equals(this.status, other.getStatus())) {
            return false;
        }

        final ImmutableList<PepAction> otherPepActions = other.getPepActions();
        assert otherPepActions != null;
        final ImmutableList<PepAction> thisPepActions = this.getPepActions();

        return thisPepActions.equals(otherPepActions);
    }
}