ImportStrategies.java

/*******************************************************************************
 * Copyright (c) 2015 Pivotal, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * 	Pivotal, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.boot.wizard.importing;

import java.lang.reflect.Constructor;

import org.springframework.ide.eclipse.boot.wizard.content.BuildType;

import com.google.common.collect.Iterables;

public class ImportStrategies {

	/**
	 * This method is provided to more easily wrap up the old import strategies, defined before
	 * we provided an extension point. It is deprecated because stuff calling this method
	 * should really be converted to use the extension point instead to contribute an ImportStrategy.
	 */
	@Deprecated
	public static ImportStrategyFactory forClass(final String className) {
		return new ImportStrategyFactory() {
			@Override
			public ImportStrategy create(BuildType buildType, String name, String notInstalledMessage) throws Exception {
				@SuppressWarnings("unchecked")
				Class<? extends ImportStrategy> klass =  (Class<? extends ImportStrategy>) Class.forName(className);
				Constructor<? extends ImportStrategy> cons = klass.getConstructor(BuildType.class, String.class, String.class);
				return cons.newInstance(buildType, name, notInstalledMessage);
			}
		};
	}

	public static Iterable<ImportStrategy> all() {
		@SuppressWarnings("unchecked")
		Iterable<ImportStrategy>[] perBuildType = new Iterable[BuildType.values().length];
		int i = 0;
		for (BuildType bt : BuildType.values()) {
			perBuildType[i++] = bt.getImportStrategies();
		}
		return Iterables.concat(perBuildType);
	}

	public static ImportStrategy withId(String id) {
		for (ImportStrategy s : all()) {
			if (s.getId().equals(id)) {
				return s;
			}
		}
		return null;
	}

}