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Klaus Brunner klausbrunner

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  • Berlin, DE
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@klausbrunner
klausbrunner / gerrit-ssh.py
Created December 10, 2015 18:11
Accessing the gerrit SSH interface using Python (via ssh config entry)
#!/usr/bin/env python
import paramiko
import sys
import os
client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
config = paramiko.SSHConfig()
@klausbrunner
klausbrunner / findhash.py
Created June 1, 2015 15:18
Finding commits by SHA-1 hash on Github repos forked from a given root repo.
""" Finding commits by SHA-1 hash on Github. This is a simple
brute-force search for a specific usecase: you assume that the commit is
within all repos forked from a certain root repo within the past n days.
This may result in many calls to the GitHub API, which in turn may result
in GitHub's rate limiter kicking in and forcing you to take a break. You
have been warned.
Built with Python 3.4 and github3.py 0.9.4.
"""
@klausbrunner
klausbrunner / curltest.sh
Created October 7, 2014 08:21
Elasticsearch boolean multifield silently ignored #6587
curl -XGET 'http://localhost:9200/'
#{
# "status" : 200,
# "name" : "Spider-Man",
# "version" : {
# "number" : "1.3.2",
# "build_hash" : "dee175dbe2f254f3f26992f5d7591939aaefd12f",
# "build_timestamp" : "2014-08-13T14:29:30Z",
# "build_snapshot" : false,
# "lucene_version" : "4.9"
@klausbrunner
klausbrunner / two-main-jars-pom.xml
Last active February 2, 2020 15:17
Creating two different executable JARs with dependencies from the same Maven project - same contents but different Main class in the manifest
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<id>make-assembly1</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
@klausbrunner
klausbrunner / JacksonStreamingBindingTest.java
Last active March 14, 2021 05:14
Incrementally binding JSON objects in an array (list) using Jackson.
package tv.xrm.test;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.*;
public class JacksonStreamingBindingTest {
@klausbrunner
klausbrunner / 1jetty-weld-howto.md
Last active February 11, 2016 16:17
Using Weld 2.x as a CDI 1.1 implementation on Jetty 9.1, and Jersey 2.x for JAX-RS 2.0 on top of that

Servlets with CDI

  • get latest Jetty 9.1 archive and extract somewhere (I'll assume the Jetty root is called "jetty")
  • in jetty/lib, create a folder called "weld" and download the weld-servlet and weld-servlet-core JARs into it. For injection in listeners to work, version should be 2.2.0.Beta1 or later.
  • in jetty/modules, create a weld.mod as in this gist
  • in jetty/start.ini, add a single line containing "--module=weld" to initialise Weld

In most cases, that should be it and you can deploy any compliant CDI application, even without a web.xml. In some cases though you may need to add the old-fashioned filter entry to the web.xml. See also: weld/core#465

Servlets with CDI and JAX-RS 2.0 (using Jersey)

@klausbrunner
klausbrunner / stacktraces.txt
Created December 13, 2013 09:41
postconstruct method on ServletListener called multiple times (on separate instances)
POST CONSTRUCT ON LISTENER CALLED test.ContextListener@1cadc928
java.lang.Throwable
at test.ContextListener.myPostConstructMethod(ContextListener.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.jetty.plus.annotation.LifeCycleCallback.callback(LifeCycleCallback.java:117)
at org.eclipse.jetty.plus.annotation.PostConstructCallback.callback(PostConstructCallback.java:57)
at org.eclipse.jetty.plus.annotation.LifeCycleCallbackCollection.callPostConstructCallback(LifeCycleCallbackCollection.java:115)
@klausbrunner
klausbrunner / dump1.txt
Last active December 30, 2015 11:09
Cassandra 1.2.11 OOMs during relatively high read load, possibly around/in compaction?
ERROR [ReadStage:51] 2013-12-06 00:02:54,065 CassandraDaemon.java (line 191) Exception in thread Thread[ReadStage:51,5,main]
ERROR [ReadStage:51] 2013-12-06 00:02:54,065 CassandraDaemon.java (line 191) Exception in thread Thread[ReadStage:51,5,main]
java.lang.OutOfMemoryError: Java heap space
at org.apache.cassandra.io.util.RandomAccessReader.readBytes(RandomAccessReader.java:376)
at org.apache.cassandra.utils.ByteBufferUtil.read(ByteBufferUtil.java:392)
at org.apache.cassandra.utils.ByteBufferUtil.readWithLength(ByteBufferUtil.java:355)
at org.apache.cassandra.db.ColumnSerializer.deserializeColumnBody(ColumnSerializer.java:108)
at org.apache.cassandra.db.OnDiskAtom$Serializer.deserializeFromSSTable(OnDiskAtom.java:92)
at org.apache.cassandra.db.OnDiskAtom$Serializer.deserializeFromSSTable(OnDiskAtom.java:73)
at org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:106)
@klausbrunner
klausbrunner / web.xml
Created December 6, 2013 07:00
web.xml used with cditest, patched weld on jetty-9.1.[01]
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<listener>
<listener-class>org.jboss.weld.environment.servlet.BeanManagerResourceBindingListener</listener-class>
</listener>
<listener>
@klausbrunner
klausbrunner / Unzipper.java
Last active September 2, 2018 14:00
Extracts files and directories of a standard zip file to a destination directory. Requires at least Java 7.
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import static java.nio.file.Files.*;
/**
* Extracts files and directories of a standard zip file to a destination directory. Requires at least Java 7.
*/