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make code more snappy

This commit is contained in:
xtyuns 2023-04-12 12:30:26 +08:00
parent 30a07f9c60
commit ebc8c5dbde
1 changed files with 14 additions and 27 deletions
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41
src/main/java/com/janetfilter/core/attach/VMSelector.java
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@ -4,7 +4,12 @@ import com.janetfilter.core.utils.DateUtils;
import com.janetfilter.core.utils.ProcessUtils; import com.janetfilter.core.utils.ProcessUtils;
import com.janetfilter.core.utils.WhereIsUtils; import com.janetfilter.core.utils.WhereIsUtils;
import java.io.*; import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Comparator; import java.util.Comparator;
import java.util.List; import java.util.List;
@ -62,46 +67,28 @@ public class VMSelector {
System.out.println(" =========================== " + DateUtils.formatDateTime() + " ============================"); System.out.println(" =========================== " + DateUtils.formatDateTime() + " ============================");
select(); select();
return; return;
case "":
processSelect();
return;
default: default:
int index; VMDescriptor targetVmDescriptor;
try { try {
index = Integer.parseInt(input); int seq = Integer.parseInt(input);
} catch (NumberFormatException e) { targetVmDescriptor = descriptors.get(seq - 1);
invalidInput(input); } catch (NumberFormatException | IndexOutOfBoundsException e) {
return; System.err.println("> Invalid input: " + input);
} processSelect();
if (index < 1) {
invalidInput(input);
return;
}
if (index > descriptors.size()) {
invalidInput(input);
return; return;
} }
System.out.print(" Agent args: "); System.out.print(" Agent args: ");
input = getInput(); input = getInput();
try { try {
VMLauncher.launch(thisJar, descriptors.get(index - 1), input); VMLauncher.launch(thisJar, targetVmDescriptor, input);
} catch (Exception e) { } catch (Exception e) {
System.err.println("> Attach to: " + index + " failed."); System.err.println("> Attach failed.");
e.printStackTrace(System.err); e.printStackTrace(System.err);
return;
} }
break;
} }
} }
private void invalidInput(String input) throws Exception {
System.err.println("> Invalid input: " + input);
processSelect();
}
public void select() throws Exception { public void select() throws Exception {
boolean first = null == descriptors; boolean first = null == descriptors;
List<VMDescriptor> temp = getVMList(); List<VMDescriptor> temp = getVMList();