rulesets.java.ali-other.xml Maven / Gradle / Ivy
<?xml version="1.0"?>
<ruleset name="AlibabaJavaOthers" xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
<description>AlibabaJavaOthers</description>
<rule name="AvoidPatternCompileInMethodRule" language="java"
message="java.other.AvoidPatternCompileInMethodRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.AvoidPatternCompileInMethodRule">
<description>java.other.AvoidPatternCompileInMethodRule.rule.desc</description>
<priority>1</priority>
<example>
<![CDATA[
public class XxxClass {
// Use precompile
private static Pattern NUMBER_PATTERN = Pattern.compile("[0-9]+");
public Pattern getNumberPattern() {
// Avoid use Pattern.compile in method body.
Pattern localPattern = Pattern.compile("[0-9]+");
return localPattern;
}
}
]]>
</example>
</rule>
<rule name="AvoidApacheBeanUtilsCopyRule" language="java"
message="java.other.AvoidApacheBeanUtilsCopyRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.AvoidApacheBeanUtilsCopyRule">
<description>java.other.AvoidApacheBeanUtilsCopyRule.rule.desc</description>
<priority>1</priority>
<example>
<![CDATA[
TestObject a = new TestObject();
TestObject b = new TestObject();
a.setX(b.getX());
a.setY(b.getY());
]]>
</example>
</rule>
<rule name="AvoidNewDateGetTimeRule" language="java"
message="java.other.AvoidNewDateGetTimeRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.AvoidNewDateGetTimeRule">
<description>java.other.AvoidNewDateGetTimeRule.rule.desc</description>
<priority>1</priority>
<example>
<![CDATA[
public class TimeMillisDemo {
public static void main(String args[]) {
// Positive example:
long a = System.currentTimeMillis();
// Negative example:
long b = new Date().getTime();
System.out.println(a);
System.out.println(b);
}
}
]]>
</example>
</rule>
<rule name="AvoidMissUseOfMathRandomRule" language="java"
message="java.other.AvoidMissUseOfMathRandomRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.AvoidMissUseOfMathRandomRule">
<priority>3</priority>
<example>
<![CDATA[
Negative example:
Long randomLong =(long) (Math.random() * 10);
]]>
</example>
<example>
<![CDATA[
Positive example:
Long randomLong = new Random().nextLong();
]]>
</example>
</rule>
<rule name="MethodTooLongRule" language="java"
message="java.other.MethodTooLongRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.MethodTooLongRule">
<description>java.other.MethodTooLongRule.rule.desc</description>
<priority>3</priority>
</rule>
<rule name="UseRightCaseForDateFormatRule" language="java"
message="java.other.UseRightCaseForDateFormatRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.UseRightCaseForDateFormatRule">
<description>java.other.UseRightCaseForDateFormatRule.rule.desc</description>
<priority>2</priority>
<example>
<![CDATA[
Negative example:
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
]]>
</example>
<example>
<![CDATA[
Positive example:
SimpleDateFormat format = new SimpleDateFormat("YYYY-mm-dd HH:mm:ss");
]]>
</example>
</rule>
<rule name="AvoidDoubleOrFloatEqualCompareRule" language="java"
message="java.other.AvoidDoubleOrFloatEqualCompareRule.rule.msg"
class="com.alibaba.p3c.pmd.lang.java.rule.other.AvoidDoubleOrFloatEqualCompareRule">
<description>java.other.AvoidDoubleOrFloatEqualCompareRule.rule.desc</description>
<priority>2</priority>
<example>
<![CDATA[
Negative example:
float g = 0.7f-0.6f;
float h = 0.8f-0.7f;
if (g == h) {
System.out.println("true");
}
]]>
</example>
<example>
<![CDATA[
Positive example:
double dis = 1e-6;
double d1 = 0.0000001d;
double d2 = 0d;
System.out.println(Math.abs(d1 - d2) < dis);
]]>
</example>
</rule>
</ruleset>