/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* 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.
*/
package freemarker.test.utility;
import java.util.Collection;
import java.util.List;
import java.util.Set;
public class Helpers {
private Helpers() { }
public static String arrayToString(double[] xs) {
StringBuilder sb = new StringBuilder();
sb.append('[');
for (double x : xs) {
if (sb.length() != 1) sb.append(", ");
sb.append(x);
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(Object[] array) {
if (array == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (int i = 0; i < array.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(array[i]);
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(Object[][] arrayArray) {
if (arrayArray == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
boolean first = true;
for (Object[] array : arrayArray) {
if (!first) {
sb.append(", ");
} else {
first = false;
}
sb.append(arrayToString(array));
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(int[] array) {
if (array == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (int i = 0; i < array.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(array[i]);
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(int[][] xss) {
if (xss == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (int i = 0; i < xss.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arrayToString(xss[i]));
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(char[] array) {
if (array == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (int i = 0; i < array.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(array[i]);
}
sb.append(']');
return sb.toString();
}
public static String arrayToString(boolean[] array) {
if (array == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append('[');
for (int i = 0; i < array.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(array[i]);
}
sb.append(']');
return sb.toString();
}
public static String listToString(List<?> list) {
return collectionToString("", list);
}
public static String setToString(Set<?> list) {
return collectionToString("Set", list);
}
private static String collectionToString(String prefix, Collection<?> list) {
if (list == null) return "null";
StringBuilder sb = new StringBuilder();
sb.append(prefix);
sb.append('[');
boolean first = true;
for (Object item : list) {
if (!first) {
sb.append(", ");
} else {
first = false;
}
sb.append(item instanceof Object[] ? arrayToString((Object[]) item) : item);
}
sb.append(']');
return sb.toString();
}
}