#436

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Build # #436

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #295 from hazendaz/develop

Run overall code cleanup using Eclipse

Run Details

91 of 91 new or added lines in 19 files covered. (100.0%)

1777 of 2212 relevant lines covered (80.33%)

0.8 hits per line

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90.2

/src/main/java/org/apache/ibatis/migration/VariableReplacer.java

/*
 *    Copyright 2010-2023 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.apache.ibatis.migration;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * @author Clinton Begin
 */
public class VariableReplacer {

  private static final String openToken = "${";
  private static final String closeToken = "}";
  private final List<Map<? extends Object, ? extends Object>> variablesList;

  public VariableReplacer(Map<? extends Object, ? extends Object> variablesList) {
    this(Arrays.asList(variablesList));
  }

  public VariableReplacer(List<Map<? extends Object, ? extends Object>> variablesList) {
    this.variablesList = variablesList == null ? Collections.emptyList()
        : variablesList.stream().filter(Objects::nonNull).collect(Collectors.toList());
  }

  public String replace(String text) {
    if (text == null || text.isEmpty()) {
      return "";
    }
    // search open token
    int start = text.indexOf(openToken);
    if (start == -1) {
      return text;
    }
    char[] src = text.toCharArray();
    int offset = 0;
    final StringBuilder builder = new StringBuilder();
    StringBuilder expression = null;
    while (start > -1) {
      if (start > 0 && src[start - 1] == '\\') {
        // this open token is escaped. remove the backslash and continue.
        builder.append(src, offset, start - offset - 1).append(openToken);
        offset = start + openToken.length();
      } else {
        // found open token. let's search close token.
        if (expression == null) {
          expression = new StringBuilder();
        } else {
          expression.setLength(0);
        }
        builder.append(src, offset, start - offset);
        offset = start + openToken.length();
        int end = text.indexOf(closeToken, offset);
        while (end > -1) {
          if (end <= offset || src[end - 1] != '\\') {
            expression.append(src, offset, end - offset);
            break;
          }
          // this close token is escaped. remove the backslash and continue.
          expression.append(src, offset, end - offset - 1).append(closeToken);
          offset = end + closeToken.length();
          end = text.indexOf(closeToken, offset);
        }
        if (end == -1) {
          // close token was not found.
          builder.append(src, start, src.length - start);
          offset = src.length;
        } else {
          appendWithReplace(builder, expression.toString());
          offset = end + closeToken.length();
        }
      }
      start = text.indexOf(openToken, offset);
    }
    if (offset < src.length) {
      builder.append(src, offset, src.length - offset);
    }
    return builder.toString();
  }

  private StringBuilder appendWithReplace(StringBuilder builder, String key) {
    String value = null;
    for (Map<? extends Object, ? extends Object> variables : variablesList) {
      value = (String) variables.get(key);
      if (value != null) {
        builder.append(value);
        break;
      }
    }
    if (value == null) {
      builder.append(openToken).append(key).append(closeToken);
    }
    return builder;
  }
}

1	/*
2	* Copyright 2010-2023 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.apache.ibatis.migration;
17
18	import java.util.Arrays;
19	import java.util.Collections;
20	import java.util.List;
21	import java.util.Map;
22	import java.util.Objects;
23	import java.util.stream.Collectors;
24
25	/**
26	* @author Clinton Begin
27	*/
28	public class VariableReplacer {
29
30	private static final String openToken = "${";
31	private static final String closeToken = "}";
32	private final List<Map<? extends Object, ? extends Object>> variablesList;
33
34	public VariableReplacer(Map<? extends Object, ? extends Object> variablesList) {
35	this(Arrays.asList(variablesList));	1✔
36	}	1✔
37
38	public VariableReplacer(List<Map<? extends Object, ? extends Object>> variablesList) {	1✔
39	this.variablesList = variablesList == null ? Collections.emptyList()	1✔
40	: variablesList.stream().filter(Objects::nonNull).collect(Collectors.toList());	1✔
41	}	1✔
42
43	public String replace(String text) {
44	if (text == null \|\| text.isEmpty()) {	1✔
45	return "";	1✔
46	}
47	// search open token
48	int start = text.indexOf(openToken);	1✔
49	if (start == -1) {	1✔
50	return text;	1✔
51	}
52	char[] src = text.toCharArray();	1✔
53	int offset = 0;	1✔
54	final StringBuilder builder = new StringBuilder();	1✔
55	StringBuilder expression = null;	1✔
56	while (start > -1) {	1✔
57	if (start > 0 && src[start - 1] == '\\') {	1✔
58	// this open token is escaped. remove the backslash and continue.
59	builder.append(src, offset, start - offset - 1).append(openToken);	1✔
60	offset = start + openToken.length();	1✔
61	} else {
62	// found open token. let's search close token.
63	if (expression == null) {	1✔
64	expression = new StringBuilder();	1✔
65	} else {
66	expression.setLength(0);	1✔
67	}
68	builder.append(src, offset, start - offset);	1✔
69	offset = start + openToken.length();	1✔
70	int end = text.indexOf(closeToken, offset);	1✔
71	while (end > -1) {	1✔
72	if (end <= offset \|\| src[end - 1] != '\\') {	1✔
73	expression.append(src, offset, end - offset);	1✔
74	break;	1✔
75	}
76	// this close token is escaped. remove the backslash and continue.
77	expression.append(src, offset, end - offset - 1).append(closeToken);	×
78	offset = end + closeToken.length();	×
79	end = text.indexOf(closeToken, offset);	×
80	}
81	if (end == -1) {	1✔
82	// close token was not found.
83	builder.append(src, start, src.length - start);	×
84	offset = src.length;	×
85	} else {
86	appendWithReplace(builder, expression.toString());	1✔
87	offset = end + closeToken.length();	1✔
88	}
89	}
90	start = text.indexOf(openToken, offset);	1✔
91	}
92	if (offset < src.length) {	1✔
93	builder.append(src, offset, src.length - offset);	1✔
94	}
95	return builder.toString();	1✔
96	}
97
98	private StringBuilder appendWithReplace(StringBuilder builder, String key) {
99	String value = null;	1✔
100	for (Map<? extends Object, ? extends Object> variables : variablesList) {	1✔
101	value = (String) variables.get(key);	1✔
102	if (value != null) {	1✔
103	builder.append(value);	1✔
104	break;	1✔
105	}
106	}	1✔
107	if (value == null) {	1✔
108	builder.append(openToken).append(key).append(closeToken);	1✔
109	}
110	return builder;	1✔
111	}
112	}

mybatis / migrations / #436

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