1942

Committed 12 Jan 2026 05:01PM UTC coverage: 88.75% (+0.4%) from 88.365%

Build # 1942

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push

github

Committed by

web-flow

Commit Message

Merge pull request #1412 from jeffgbutler/jspecify

Adopt JSpecify

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2331 of 3162 branches covered (73.72%)

1800 of 1949 new or added lines in 202 files covered. (92.36%)

18 existing lines in 10 files now uncovered.

11384 of 12827 relevant lines covered (88.75%)

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77.19

/core/mybatis-generator-core/src/main/java/org/mybatis/generator/internal/util/StringUtility.java

/*
 *    Copyright 2006-2026 the original author or authors.
 *
 *    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
 *
 *       https://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 org.mybatis.generator.internal.util;

import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;

import org.jspecify.annotations.Nullable;

public class StringUtility {

    /**
     * Utility class. No instances allowed
     */
    private StringUtility() {
        super();
    }

    public static @Nullable String trimToNull(@Nullable String s) {
        if (s == null) {
            return null;
        } else {
            var d = s.trim();
            return d.isEmpty() ? null : d;
        }
    }

    public static @Nullable Boolean parseNullableBoolean(@Nullable String s) {
        return s == null ? null : Boolean.valueOf(s);
    }

    public static boolean stringHasValue(@Nullable String s) {
        return s != null && !s.isEmpty();
    }

    public static String composeFullyQualifiedTableName(@Nullable String catalog,
            @Nullable String schema, String tableName, char separator) {
        StringBuilder sb = new StringBuilder();

        if (stringHasValue(catalog)) {
            sb.append(catalog);
            sb.append(separator);
        }

        if (stringHasValue(schema)) {
            sb.append(schema);
            sb.append(separator);
        } else {
            if (!sb.isEmpty()) {
                sb.append(separator);
            }
        }

        sb.append(tableName);

        return sb.toString();
    }

    public static boolean stringContainsSpace(@Nullable String s) {
        return s != null && s.indexOf(' ') != -1;
    }

    public static String escapeStringForJava(String s) {
        StringTokenizer st = new StringTokenizer(s, "\"", true); //$NON-NLS-1$
        StringBuilder sb = new StringBuilder();
        while (st.hasMoreTokens()) {
            String token = st.nextToken();
            if ("\"".equals(token)) { //$NON-NLS-1$
                sb.append("\\\""); //$NON-NLS-1$
            } else {
                sb.append(token);
            }
        }

        return sb.toString();
    }

    public static String escapeStringForKotlin(String s) {
        StringTokenizer st = new StringTokenizer(s, "\"$", true); //$NON-NLS-1$
        StringBuilder sb = new StringBuilder();
        while (st.hasMoreTokens()) {
            String token = st.nextToken();
            if ("\"".equals(token)) { //$NON-NLS-1$
                sb.append("\\\""); //$NON-NLS-1$
            } else if ("$".equals(token)) { //$NON-NLS-1$
                sb.append("\\$"); //$NON-NLS-1$
            } else {
                sb.append(token);
            }
        }

        return sb.toString();
    }

    public static boolean isTrue(@Nullable String s) {
        return "true".equalsIgnoreCase(s); //$NON-NLS-1$
    }

    public static boolean stringContainsSQLWildcard(@Nullable String s) {
        if (s == null) {
            return false;
        }

        return s.indexOf('%') != -1 || s.indexOf('_') != -1;
    }

    /**
     * Given an input string, tokenize on the commas and trim all token. Returns an empty set if the input string is
     * null.
     *
     * @param in
     *            strong to tokenize.
     *
     * @return Set of tokens
     */
    public static Set<String> tokenize(String in) {
        Set<String> answer = new HashSet<>();
        if (StringUtility.stringHasValue(in)) {
            StringTokenizer st = new StringTokenizer(in, ","); //$NON-NLS-1$
            while (st.hasMoreTokens()) {
                String s = st.nextToken().trim();
                if (!s.isEmpty()) {
                    answer.add(s);
                }
            }
        }
        return answer;
    }

    public static String convertCamelCaseToSnakeCase(String in) {
        if (in.chars().anyMatch(Character::isLowerCase)) {
            return in
                    .replaceAll("([A-Z])(?=[A-Z])", "$1_") //$NON-NLS-1$ //$NON-NLS-2$
                    .replaceAll("([a-z])([A-Z])", "$1_$2") //$NON-NLS-1$ //$NON-NLS-2$
                    .toUpperCase();
        } else {
            // if all upper case, then return the string as is
            return in;
        }
    }
}

1	/*
2	* Copyright 2006-2026 the original author or authors.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* https://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package org.mybatis.generator.internal.util;
17
18	import java.util.HashSet;
19	import java.util.Set;
20	import java.util.StringTokenizer;
21
22	import org.jspecify.annotations.Nullable;
23
24	public class StringUtility {
25
26	/**
27	* Utility class. No instances allowed
28	*/
29	private StringUtility() {
30	super();
31	}
32
33	public static @Nullable String trimToNull(@Nullable String s) {
34	if (s == null) {	1!
NEW 35	return null;	×
36	} else {
37	var d = s.trim();	1✔
38	return d.isEmpty() ? null : d;	1✔
39	}
40	}
41
42	public static @Nullable Boolean parseNullableBoolean(@Nullable String s) {
43	return s == null ? null : Boolean.valueOf(s);	1✔
44	}
45
46	public static boolean stringHasValue(@Nullable String s) {
47	return s != null && !s.isEmpty();	1✔
48	}
49
50	public static String composeFullyQualifiedTableName(@Nullable String catalog,
51	@Nullable String schema, String tableName, char separator) {
52	StringBuilder sb = new StringBuilder();	1✔
53
54	if (stringHasValue(catalog)) {	1✔
55	sb.append(catalog);	1✔
56	sb.append(separator);	1✔
57	}
58
59	if (stringHasValue(schema)) {	1✔
60	sb.append(schema);	1✔
61	sb.append(separator);	1✔
62	} else {
63	if (!sb.isEmpty()) {	1✔
64	sb.append(separator);	1✔
65	}
66	}
67
68	sb.append(tableName);	1✔
69
70	return sb.toString();	1✔
71	}
72
73	public static boolean stringContainsSpace(@Nullable String s) {
74	return s != null && s.indexOf(' ') != -1;	1✔
75	}
76
77	public static String escapeStringForJava(String s) {
78	StringTokenizer st = new StringTokenizer(s, "\"", true); //$NON-NLS-1$	1✔
79	StringBuilder sb = new StringBuilder();	1✔
80	while (st.hasMoreTokens()) {	1✔
81	String token = st.nextToken();	1✔
82	if ("\"".equals(token)) { //$NON-NLS-1$	1✔
83	sb.append("\\\""); //$NON-NLS-1$	1✔
84	} else {
85	sb.append(token);	1✔
86	}
87	}	1✔
88
89	return sb.toString();	1✔
90	}
91
92	public static String escapeStringForKotlin(String s) {
93	StringTokenizer st = new StringTokenizer(s, "\"$", true); //$NON-NLS-1$	1✔
94	StringBuilder sb = new StringBuilder();	1✔
95	while (st.hasMoreTokens()) {	1✔
96	String token = st.nextToken();	1✔
97	if ("\"".equals(token)) { //$NON-NLS-1$	1✔
98	sb.append("\\\""); //$NON-NLS-1$	1✔
99	} else if ("$".equals(token)) { //$NON-NLS-1$	1✔
100	sb.append("\\$"); //$NON-NLS-1$	1✔
101	} else {
102	sb.append(token);	1✔
103	}
104	}	1✔
105
106	return sb.toString();	1✔
107	}
108
109	public static boolean isTrue(@Nullable String s) {
110	return "true".equalsIgnoreCase(s); //$NON-NLS-1$	1✔
111	}
112
113	public static boolean stringContainsSQLWildcard(@Nullable String s) {
114	if (s == null) {	×
115	return false;	×
116	}
117
118	return s.indexOf('%') != -1 \|\| s.indexOf('_') != -1;	×
119	}
120
121	/**
122	* Given an input string, tokenize on the commas and trim all token. Returns an empty set if the input string is
123	* null.
124	*
125	* @param in
126	* strong to tokenize.
127	*
128	* @return Set of tokens
129	*/
130	public static Set<String> tokenize(String in) {
131	Set<String> answer = new HashSet<>();	×
132	if (StringUtility.stringHasValue(in)) {	×
133	StringTokenizer st = new StringTokenizer(in, ","); //$NON-NLS-1$	×
134	while (st.hasMoreTokens()) {	×
135	String s = st.nextToken().trim();	×
136	if (!s.isEmpty()) {	×
137	answer.add(s);	×
138	}
139	}	×
140	}
141	return answer;	×
142	}
143
144	public static String convertCamelCaseToSnakeCase(String in) {
145	if (in.chars().anyMatch(Character::isLowerCase)) {	1✔
146	return in	1✔
147	.replaceAll("([A-Z])(?=[A-Z])", "$1_") //$NON-NLS-1$ //$NON-NLS-2$	1✔
148	.replaceAll("([a-z])([A-Z])", "$1_$2") //$NON-NLS-1$ //$NON-NLS-2$	1✔
149	.toUpperCase();	1✔
150	} else {
151	// if all upper case, then return the string as is
152	return in;	1✔
153	}
154	}
155	}

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