core/plugins/org.eclipse.dltk.debug/src/org/eclipse/dltk/internal/debug/core/model/StrUtils.java

/*******************************************************************************
 * Copyright (c) 2008 xored software, Inc.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     xored software, Inc. - initial API and Implementation (Alex Panchenko)
 *******************************************************************************/
package org.eclipse.dltk.internal.debug.core.model;

public class StrUtils {

	public static boolean equals(String s1, String s2) {
		return s1 == null ? s2 == null : s1.equals(s2);
	}

	public static boolean isEmpty(String str) {
		return str == null || str.length() == 0;
	}

	public static boolean isNotEmpty(String str) {
		return str != null && str.length() != 0;
	}

	public static boolean isBlank(String str) {
		if (str == null) {
			return true;
		}
		final int strLen = str.length();
		if (strLen == 0) {
			return true;
		}
		for (int i = 0; i < strLen; i++) {
			if ((Character.isWhitespace(str.charAt(i)) == false)) {
				return false;
			}
		}
		return true;
	}
}