RuntimeType.java

/*
 * #%L
 * Gravia :: Runtime :: API
 * %%
 * Copyright (C) 2013 - 2014 JBoss by Red Hat
 * %%
 * 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.
 * #L%
 */
package org.jboss.gravia.runtime;

import java.util.HashSet;
import java.util.Set;

import org.jboss.gravia.Constants;
import org.jboss.gravia.utils.IllegalArgumentAssertion;

/**
 * The enumeration of supported target containers
 *
 * @author thomas.diesler@jboss.com
 * @since 22-Nov-2013
 */
public enum RuntimeType {

    KARAF, WILDFLY, OTHER;

    public static RuntimeType getRuntimeType() {
        Runtime runtime = RuntimeLocator.getRequiredRuntime();
        return RuntimeType.getRuntimeType(runtime);
    }

    public static RuntimeType getRuntimeType(Runtime runtime) {
        IllegalArgumentAssertion.assertNotNull(runtime, "runtime");
        Object type = runtime.getProperty(Constants.RUNTIME_TYPE);
        return RuntimeType.getRuntimeType((String) type);
    }

    public static RuntimeType getRuntimeType(String type) {
        String upper = type != null ? type.toUpperCase() : null;
        try {
            return RuntimeType.valueOf(upper);
        } catch (RuntimeException ex) {
            return OTHER;
        }
    }

    public static boolean isRuntimeRelevant(String includedTypes, String excludedTypes) {
        return isRuntimeRelevant(getRuntimeType(), includedTypes, excludedTypes);
    }

    public static boolean isRuntimeRelevant(RuntimeType runtimeType, String includedTypes, String excludedTypes) {
        boolean result = true;
        if (includedTypes != null || excludedTypes != null) {
            Set<RuntimeType> types = new HashSet<>();
            if (includedTypes == null) {
                types.add(runtimeType);
            }

            // Add all included runtime types
            types.addAll(getRuntimeTypes(includedTypes));

            // Remove all excluded runtime types
            types.removeAll(getRuntimeTypes(excludedTypes));

            // Relevant when the current runtime type is included
            result = types.contains(runtimeType);
        }
        return result;
    }

    private static Set<RuntimeType> getRuntimeTypes(String directive) {
        Set<RuntimeType> types = new HashSet<>();
        if (directive != null) {
            for (String typespec : directive.split(",\\s*")) {
                types.add(RuntimeType.getRuntimeType(typespec));
            }
        }
        return types;
    }
}