org.gridkit.lab.jvm.attach.PatternJvmMatcher Maven / Gradle / Ivy
package org.gridkit.lab.jvm.attach;
import java.io.Serializable;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PatternJvmMatcher implements JavaProcessMatcher, Serializable {
private static final long serialVersionUID = 20121106L;
private final Map patterns = new LinkedHashMap();
public void matchVmName(String pattern) {
matchProp(":name", pattern);
}
public void matchProp(String prop, String pattern) {
Pattern p = Pattern.compile(pattern);
patterns.put(prop, p);
}
public void matchPropExact(String prop, String pattern) {
matchProp(prop, Pattern.quote(pattern));
}
@Override
public boolean evaluate(JavaProcessDetails proc) {
if (patterns.containsKey(":name")) {
if (!match(":name", proc.getDescription())) {
return false;
}
}
Properties props = proc.getSystemProperties();
if (props == null) {
return false;
}
for(String prop: patterns.keySet()) {
if (!prop.startsWith(":")) {
if (!match(prop, props.getProperty(prop))) {
return false;
}
}
}
return true;
}
private boolean match(String prop, String value) {
if (value == null) {
return false;
}
Matcher matcher = patterns.get(prop).matcher(value);
return matcher.matches();
}
@Override
public String toString() {
return String.format("%s%s", getClass().getSimpleName(), patterns.toString());
}
}