org.chaston.oakfunds.security.SinglePermissionAssertionImpl.java Source code

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Here is the source code for org.chaston.oakfunds.security.SinglePermissionAssertionImpl.java

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/*
 * Copyright 2014 Miles Chaston
 *
 * 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.chaston.oakfunds.security;

import com.google.common.collect.ImmutableList;
import org.chaston.oakfunds.storage.RecordType;

import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * TODO(mchaston): write JavaDocs
 */
class SinglePermissionAssertionImpl implements SinglePermissionAssertion {

    private final List<AtomicInteger> actionTypeCounts;

    public SinglePermissionAssertionImpl(AbstractAuthenticationScope authenticationScope, Permission permission) {

        ImmutableList.Builder<AtomicInteger> actionTypeCounts = ImmutableList.builder();
        for (Map.Entry<RecordType, ActionType> entry : permission.getRelatedActions().entries()) {
            Map<ActionType, AtomicInteger> actionCounters = authenticationScope.getAccessCounters(entry.getKey());
            AtomicInteger actionTypeCount = actionCounters.get(entry.getValue());
            if (actionTypeCount == null) {
                actionTypeCount = new AtomicInteger();
                actionCounters.put(entry.getValue(), actionTypeCount);
            }
            actionTypeCount.incrementAndGet();
            actionTypeCounts.add(actionTypeCount);
        }
        this.actionTypeCounts = actionTypeCounts.build();
    }

    @Override
    public void close() {
        for (AtomicInteger actionTypeCount : actionTypeCounts) {
            actionTypeCount.decrementAndGet();
        }
    }
}