andreacavalli/scylla-jmx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

APIClient: Make API server errors human readable

Browse Source 
Make the error messages returned by Scylla API server human readable
from 'nodetool'.

For example, if an API URL is missing, print out the following error:

  [penberg@nero scylla-tools-java]$ ./bin/nodetool getcompactionthreshold ks test4
  nodetool: Scylla API server HTTP GET to URL 'column_family/minimum_compaction/ks:test4' failed: Not found
  See 'nodetool help' or 'nodetool help <command>'.

instead of the scary-looking error that we now print:

  [penberg@nero scylla-tools-java]$ ./bin/nodetool getcompactionthreshold ks test4
  error: Not found
  -- StackTrace --
  java.lang.RuntimeException: Not found
          at com.scylladb.jmx.api.APIClient.getException(APIClient.java:116)
          at com.scylladb.jmx.api.APIClient.getRawValue(APIClient.java:160)
          at com.scylladb.jmx.api.APIClient.getRawValue(APIClient.java:174)
          at com.scylladb.jmx.api.APIClient.getIntValue(APIClient.java:216)
          at com.scylladb.jmx.api.APIClient.getIntValue(APIClient.java:220)
          at org.apache.cassandra.db.ColumnFamilyStore.getMinimumCompactionThreshold(ColumnFamilyStore.java:475)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:498)
          at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

          [snip]
Message-Id: <1458032300-17704-1-git-send-email-penberg@scylladb.com>
This commit is contained in:
Pekka Enberg 2016-03-15 10:58:20 +02:00
parent 02e0598506
commit c4d8d7087e
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/main/java/com/scylladb/jmx/api/APIClient.java
View File

@ -100,7 +100,7 @@ public class APIClient {
public Response post(String path, MultivaluedMap<String, String> queryParams) {
Response response = get(path, queryParams).post(Entity.entity(null, MediaType.TEXT_PLAIN));
if (response.getStatus() != Response.Status.OK.getStatusCode() ) {
throw getException(response.readEntity(String.class));
throw getException("Scylla API server HTTP POST to URL '" + path + "' failed", response.readEntity(String.class));
}
return response;
@ -110,10 +110,10 @@ public class APIClient {
post(path, null);
}
public RuntimeException getException(String txt) {
JsonReader reader = factory.createReader(new StringReader(txt));
public IllegalStateException getException(String msg, String json) {
JsonReader reader = factory.createReader(new StringReader(json));
JsonObject res = reader.readObject();
return new RuntimeException(res.getString("message"));
return new IllegalStateException(msg + ": " + res.getString("message"));
}
public String postGetVal(String path, MultivaluedMap<String, String> queryParams) {
@ -157,7 +157,7 @@ public class APIClient {
// TBD
// We are currently not caching errors,
// it should be reconsider.
throw getException(response.readEntity(String.class));
throw getException("Scylla API server HTTP GET to URL '" + string + "' failed", response.readEntity(String.class));
}
res = response.readEntity(String.class);
if (duration > 0) {