/*
 * Copyright 2017 Crown Copyright
 *
 * 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 stroom.receive.rules.impl;

import stroom.meta.api.AttributeMap;
import stroom.proxy.StroomStatusCode;
import stroom.receive.common.AttributeMapFilter;
import stroom.receive.common.StroomStreamException;
import stroom.receive.rules.shared.RuleAction;

import java.util.Objects;

class DataReceiptPolicyAttributeMapFilter implements AttributeMapFilter {

    private final ReceiveDataPolicyChecker dataReceiptPolicyChecker;

    DataReceiptPolicyAttributeMapFilter(final ReceiveDataPolicyChecker dataReceiptPolicyChecker) {
        Objects.requireNonNull(dataReceiptPolicyChecker, "Null policy checker");
        this.dataReceiptPolicyChecker = dataReceiptPolicyChecker;
    }

    @Override
    public boolean filter(final AttributeMap attributeMap) {
        // We need to examine the meta map and ensure we aren't dropping or rejecting this data.
        final RuleAction action = dataReceiptPolicyChecker.check(attributeMap);

        if (RuleAction.REJECT.equals(action)) {
            throw new StroomStreamException(StroomStatusCode.FEED_IS_NOT_SET_TO_RECEIVED_DATA, attributeMap);
        }

        return RuleAction.RECEIVE.equals(action);
    }
}
