github/arthas
4
0
Fork 0
mirror of https://github.com/alibaba/arthas.git synced 2024-04-21 10:21:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

vmtool support limit option. #1781

Browse Source
This commit is contained in:
hengyunabc
2021-05-07 22:49:04 +08:00
parent d8ce0beeaf
commit e2e7061182
8 changed files with 114 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/src/main/java/com/taobao/arthas/core/command/monitor200/VmToolCommand.java
+15 -1
View File
@@ -47,6 +47,8 @@ import arthas.VmTool;
@Description(Constants.EXAMPLE
+ " vmtool --action getInstances --className demo.MathGame\n"
+ " vmtool --action getInstances --className demo.MathGame --express 'instances.length'\n"
+ " vmtool --action getInstances --className demo.MathGame --express 'instances[0]'\n"
+ " vmtool --action getInstances --className java.lang.String --limit 10\n"
+ " vmtool --action forceGc\n"
+ Constants.WIKI + Constants.WIKI_HOME + "vmtool")
//@formatter:on
@@ -64,6 +66,11 @@ public class VmToolCommand extends AnnotatedCommand {
*/
private int expand;
/**
* default value 10
*/
private int limit;
private static String libPath;
private static VmTool vmTool = null;
@@ -117,6 +124,13 @@ public class VmToolCommand extends AnnotatedCommand {
this.classLoaderClass = classLoaderClass;
}
@Option(shortName = "l", longName = "limit")
@Description("Set the limit value of the getInstances action, default value is 10, set to -1 is unlimited")
@DefaultValue("10")
public void setLimit(int limit) {
this.limit = limit;
}
@Option(longName = "express", required = false)
@Description("The ognl expression, default valueis `instances`.")
public void setExpress(String express) {
@@ -165,7 +179,7 @@ public class VmToolCommand extends AnnotatedCommand {
process.end(-1, "Found more than one class: " + matchedClasses + ".");
return;
} else {
Object[] instances = vmToolInstance().getInstances(matchedClasses.get(0));
Object[] instances = vmToolInstance().getInstances(matchedClasses.get(0), limit);
Object value = instances;
if (express != null) {
Express unpooledExpress = ExpressFactory.unpooledExpress(classLoader);