每当有特定注释时如何使 Checkstyle 忽略丢失的 JavaDoc
How to make Checkstyle ignore missing JavaDoc whenever there is a specific annotation
我想自定义 Checkstyle JavadocVariable 规则,这样它就不会抱怨具有 @FindBy
注释的字段。
class Demo{
@FindBy(id = "new-button")
public WebElement createButton; //<- no JavaDoc required because it is a field "injected" by selenium
public String otherField; //<- complain about missing Java doc
}
但我不知道如何在 checkstyle.xml
文件中指定它。有人有想法吗?
在此用例中不起作用的事情:
- 修改勾选class也是无解!
SuppressWithNearbyCommentFilter
不行,因为是注解不是注释
我知道几种解决方案,但所有这些都需要额外的工作。
- 实现自己的
JavadocVariableCheck
并可能在提供注释的情况下跳过检查。
- 实施 checkstyle 过滤器(类似于
SuppressWarningsHolder
+ SuppressWarningsFilter
但具有注释支持)
- 或者实现简单的过滤器扫描
@FindBy
并忽略它后面的两行。
我的解决方案(最简单的):
package org.aap.checks;
import com.google.common.collect.Lists;
import com.puppycrawl.tools.checkstyle.api.AuditEvent;
import com.puppycrawl.tools.checkstyle.api.AutomaticBean;
import com.puppycrawl.tools.checkstyle.api.FileContents;
import com.puppycrawl.tools.checkstyle.api.Filter;
import com.puppycrawl.tools.checkstyle.checks.FileContentsHolder;
import java.lang.ref.WeakReference;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
public class SuppressWithAnnotationFilter
extends AutomaticBean
implements Filter {
public class Tag implements Comparable<Tag> {
private final int firstLine;
private final int lastLine;
public Tag(int firstLine, int lastLine) {
this.firstLine = firstLine;
this.lastLine = lastLine;
}
@Override
public int compareTo(Tag other) {
if (firstLine == other.firstLine) {
return lastLine - other.lastLine;
}
return (firstLine - other.firstLine);
}
public boolean isMatch(AuditEvent event) {
final int line = event.getLine();
return line >= firstLine && line <= lastLine;
}
@Override
public final String toString() {
return "Tag[lines=" + firstLine + " to " + lastLine + "]";
}
}
private final List<Tag> tags = Lists.newArrayList();
private WeakReference<FileContents> fileContentsReference =
new WeakReference<FileContents>(null);
public FileContents getFileContents() {
return fileContentsReference.get();
}
public void setFileContents(FileContents fileContents) {
fileContentsReference = new WeakReference<FileContents>(fileContents);
}
@Override
public boolean accept(AuditEvent event) {
if (event.getLocalizedMessage() == null) {
return true; // A special event.
}
final FileContents currentContents = FileContentsHolder.getContents();
if (currentContents == null) {
return true;
}
if (getFileContents() != currentContents) {
setFileContents(currentContents);
tagSuppressions();
}
for (final Iterator<Tag> iter = tags.iterator(); iter.hasNext(); ) {
final Tag tag = iter.next();
if (tag.isMatch(event)) {
return false;
}
}
return true;
}
private void tagSuppressions() {
tags.clear();
final FileContents contents = getFileContents();
String[] contentsLines = contents.getLines();
for (int i = 0; i < contentsLines.length; i++) {
if (contentsLines[i].contains("@FindBy")) {
tags.add(new Tag(i+1, i+2));
}
}
Collections.sort(tags);
}
}
将生成的 class 添加到检查样式任务的 class 路径中,然后在 checkstyle.xml
中指定过滤器:
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Puppy Crawl//DTD Check Configuration 1.3//EN"
"http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="TreeWalker">
....
<!-- your Check goes here -->
<module name="org.aap.checks.SuppressWithAnnotationFilter"/>
....
</module>
</module>
我想自定义 Checkstyle JavadocVariable 规则,这样它就不会抱怨具有 @FindBy
注释的字段。
class Demo{
@FindBy(id = "new-button")
public WebElement createButton; //<- no JavaDoc required because it is a field "injected" by selenium
public String otherField; //<- complain about missing Java doc
}
但我不知道如何在 checkstyle.xml
文件中指定它。有人有想法吗?
在此用例中不起作用的事情:
- 修改勾选class也是无解!
SuppressWithNearbyCommentFilter
不行,因为是注解不是注释
我知道几种解决方案,但所有这些都需要额外的工作。
- 实现自己的
JavadocVariableCheck
并可能在提供注释的情况下跳过检查。 - 实施 checkstyle 过滤器(类似于
SuppressWarningsHolder
+SuppressWarningsFilter
但具有注释支持) - 或者实现简单的过滤器扫描
@FindBy
并忽略它后面的两行。
我的解决方案(最简单的):
package org.aap.checks;
import com.google.common.collect.Lists;
import com.puppycrawl.tools.checkstyle.api.AuditEvent;
import com.puppycrawl.tools.checkstyle.api.AutomaticBean;
import com.puppycrawl.tools.checkstyle.api.FileContents;
import com.puppycrawl.tools.checkstyle.api.Filter;
import com.puppycrawl.tools.checkstyle.checks.FileContentsHolder;
import java.lang.ref.WeakReference;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
public class SuppressWithAnnotationFilter
extends AutomaticBean
implements Filter {
public class Tag implements Comparable<Tag> {
private final int firstLine;
private final int lastLine;
public Tag(int firstLine, int lastLine) {
this.firstLine = firstLine;
this.lastLine = lastLine;
}
@Override
public int compareTo(Tag other) {
if (firstLine == other.firstLine) {
return lastLine - other.lastLine;
}
return (firstLine - other.firstLine);
}
public boolean isMatch(AuditEvent event) {
final int line = event.getLine();
return line >= firstLine && line <= lastLine;
}
@Override
public final String toString() {
return "Tag[lines=" + firstLine + " to " + lastLine + "]";
}
}
private final List<Tag> tags = Lists.newArrayList();
private WeakReference<FileContents> fileContentsReference =
new WeakReference<FileContents>(null);
public FileContents getFileContents() {
return fileContentsReference.get();
}
public void setFileContents(FileContents fileContents) {
fileContentsReference = new WeakReference<FileContents>(fileContents);
}
@Override
public boolean accept(AuditEvent event) {
if (event.getLocalizedMessage() == null) {
return true; // A special event.
}
final FileContents currentContents = FileContentsHolder.getContents();
if (currentContents == null) {
return true;
}
if (getFileContents() != currentContents) {
setFileContents(currentContents);
tagSuppressions();
}
for (final Iterator<Tag> iter = tags.iterator(); iter.hasNext(); ) {
final Tag tag = iter.next();
if (tag.isMatch(event)) {
return false;
}
}
return true;
}
private void tagSuppressions() {
tags.clear();
final FileContents contents = getFileContents();
String[] contentsLines = contents.getLines();
for (int i = 0; i < contentsLines.length; i++) {
if (contentsLines[i].contains("@FindBy")) {
tags.add(new Tag(i+1, i+2));
}
}
Collections.sort(tags);
}
}
将生成的 class 添加到检查样式任务的 class 路径中,然后在 checkstyle.xml
中指定过滤器:
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Puppy Crawl//DTD Check Configuration 1.3//EN"
"http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="TreeWalker">
....
<!-- your Check goes here -->
<module name="org.aap.checks.SuppressWithAnnotationFilter"/>
....
</module>
</module>