org.jclouds.azurecompute.util.NetworkSecurityGroups.java Source code

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Here is the source code for org.jclouds.azurecompute.util.NetworkSecurityGroups.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.jclouds.azurecompute.util;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.jclouds.azurecompute.domain.NetworkSecurityGroup;
import org.jclouds.azurecompute.domain.Rule;

import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;

public class NetworkSecurityGroups {

    public static List<Rule> getCustomRules(final NetworkSecurityGroup networkSecurityGroup) {
        final List<Rule> rules = networkSecurityGroup.rules();
        return FluentIterable.from(rules).filter(Predicates.notNull()).filter(new Predicate<Rule>() {
            @Override
            public boolean apply(final Rule rule) {
                return rule.isDefault() == null || !rule.isDefault();
            }
        }).toSortedList(new Comparator<Rule>() {
            @Override
            public int compare(final Rule r1, final Rule r2) {
                final int p1 = Integer.parseInt(r1.priority());
                final int p2 = Integer.parseInt(r2.priority());
                return p1 < p2 ? -1 : p1 == p2 ? 0 : 1;

            }
        });
    }

    public static int getFirstAvailablePriority(final List<Rule> rules) {
        int priority;
        if (rules.isEmpty()) {
            priority = 100;
        } else {
            priority = Integer.parseInt(Collections.max(rules, new Comparator<Rule>() {
                @Override
                public int compare(final Rule rule1, final Rule rule2) {
                    return Integer.valueOf(rule1.priority()).compareTo(Integer.valueOf(rule2.priority()));
                }
            }).priority()) + 1;
        }
        return priority;
    }

    public static String createRuleName(final String format, final int fromPort, final int toPort) {
        return String.format(format, fromPort, toPort);
    }

}