ConvertIpPermissionToRule.java

/*
 * Copyright (c) 2012 S.C. Axemblr Software Solutions S.R.L
 *
 * 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 com.axemblr.provisionr.amazon.functions;

import com.amazonaws.services.ec2.model.IpPermission;
import com.axemblr.provisionr.api.network.Protocol;
import com.axemblr.provisionr.api.network.Rule;
import com.axemblr.provisionr.api.network.RuleBuilder;
import com.google.common.base.Function;
import static com.google.common.collect.Iterables.getOnlyElement;

public enum ConvertIpPermissionToRule implements Function<IpPermission, Rule> {
    FUNCTION;

    @Override
    public Rule apply(IpPermission ipPermission) {
        final RuleBuilder builder = Rule.builder().cidr(getOnlyElement(ipPermission.getIpRanges()))
            .protocol(Protocol.valueOf(ipPermission.getIpProtocol().toUpperCase()));

        if (!ipPermission.getIpProtocol().equalsIgnoreCase("icmp")) {
            builder.ports(ipPermission.getFromPort(), ipPermission.getToPort());
        }

        return builder.createRule();
    }
}