MatrixExecutionStrategyDescriptor.java

/*
 * The MIT License
 *
 * Copyright (c) 2012, CloudBees, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package hudson.matrix;

import hudson.DescriptorExtensionList;
import hudson.model.Descriptor;
import jenkins.model.Jenkins;

/**
 * @author Kohsuke Kawaguchi
 * @since 1.456
 */
public abstract class MatrixExecutionStrategyDescriptor extends Descriptor<MatrixExecutionStrategy> {
    protected MatrixExecutionStrategyDescriptor(Class<? extends MatrixExecutionStrategy> clazz) {
        super(clazz);
    }

    protected MatrixExecutionStrategyDescriptor() {
    }

    /**
     * Returns all the registered {@link MatrixExecutionStrategyDescriptor}s.
     */
    public static DescriptorExtensionList<MatrixExecutionStrategy,MatrixExecutionStrategyDescriptor> all() {
        final Jenkins jenkins = Jenkins.getInstance();
        if (jenkins != null) {
            return jenkins.<MatrixExecutionStrategy,MatrixExecutionStrategyDescriptor>getDescriptorList(MatrixExecutionStrategy.class);
        } else {
            return DescriptorExtensionList.createDescriptorList((Jenkins)null, MatrixExecutionStrategy.class);
        }
    }
}