Package: ErrorUtils

ErrorUtils

name	instruction	branch	complexity	line	method
ErrorUtils()	M: 6 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%
getNPXMessageSupplier(String)	M: 0 C: 3 100%	M: 0 C: 0 100%	M: 0 C: 1 100%	M: 0 C: 1 100%	M: 0 C: 1 100%
lambda$getNPXMessageSupplier$0(String)	M: 0 C: 5 100%	M: 0 C: 0 100%	M: 0 C: 1 100%	M: 0 C: 1 100%	M: 0 C: 1 100%

Coverage

1: /**
2: * Copyright (C) 2016 Czech Technical University in Prague
3: * <p>
4: * This program is free software: you can redistribute it and/or modify it under
5: * the terms of the GNU General Public License as published by the Free Software
6: * Foundation, either version 3 of the License, or (at your option) any
7: * later version.
8: * <p>
9: * This program is distributed in the hope that it will be useful, but WITHOUT
10: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11: * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
12: * details. You should have received a copy of the GNU General Public License
13: * along with this program. If not, see <http://www.gnu.org/licenses/>.
14: */
15: package cz.cvut.kbss.jopa.utils;
16:
17: import java.util.function.Supplier;
18:
19: public final class ErrorUtils {
20:
21: /**
22: * Error message stating that an argument cannot be null. </p>
23: * <p>
24: * This message contains a placeholder {@code arg}, which should be replaced
25: * with the actual argument name.
26: */
27: private static final String ARGUMENT_NULL = "Argument '$arg$' cannot be null.";
28:
29: private static final String PLACEHOLDER = "$arg$";
30:
31: private ErrorUtils() {
32: throw new AssertionError();
33: }
34:
35: /**
36: * Provides a {@link NullPointerException} message supplier.
37: * <p>
38: * This supplier constructs messages which state than an argument with the specified name cannot be null.
39: *
40: * @param argName Argument name
41: * @return Error message supplier
42: */
43: public static Supplier<String> getNPXMessageSupplier(final String argName) {
44: return () -> ARGUMENT_NULL.replace(PLACEHOLDER, argName);
45: }
46: }