org.osgi.service.indexer.impl.util.Create Maven / Gradle / Ivy

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package org.osgi.service.indexer.impl.util;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

class Create {

	public static  Map map() {
		return new LinkedHashMap();
	}

	public static  Map map(Class key, Class value) {
		return Collections.checkedMap(new LinkedHashMap(), key, value);
	}

	public static  List list() {
		return new ArrayList();
	}

	public static  List list(Class c) {
		return Collections.checkedList(new ArrayList(), c);
	}

	public static  Set set() {
		return new HashSet();
	}

	public static  Set set(Class c) {
		return Collections.checkedSet(new HashSet(), c);
	}

	public static  List list(T[] source) {
		return new ArrayList(Arrays.asList(source));
	}

	public static  Set set(T[] source) {
		return new HashSet(Arrays.asList(source));
	}

	public static  Map copy(Map source) {
		return new LinkedHashMap(source);
	}

	public static  List copy(List source) {
		return new ArrayList(source);
	}

	public static  Set copy(Collection source) {
		if (source == null)
			return set();
		return new HashSet(source);
	}

}