[
https://issues.apache.org/jira/browse/KNOX-3051?focusedWorklogId=946358&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-946358
]
ASF GitHub Bot logged work on KNOX-3051:
----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Dec/24 15:24
Start Date: 02/Dec/24 15:24
Worklog Time Spent: 10m
Work Description: smolnar82 commented on code in PR #971:
URL: https://github.com/apache/knox/pull/971#discussion_r1866050706
##########
gateway-util-launcher/src/main/java/org/apache/knox/gateway/launcher/Extender.java:
##########
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.knox.gateway.launcher;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.Properties;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Extender {
+
+ private static final String CLASSPATH_EXTENSION_PROPERTY =
"gateway.server.classpath.extension";
+ private static final String CLASSPATH_PROPERTY_PATTERN =
"<property>\\s*<name>" + CLASSPATH_EXTENSION_PROPERTY +
"</name>\\s*<value>(.*?)</value>\\s*</property>";
+ private static final String CONFIG_FILE = "gateway-site.xml";
+ private static final String CONFIG_PATH = "../conf/" + CONFIG_FILE;
+ private static final String CLASS_PATH_PROPERTY = "class.path";
+ private static final String MAIN_CLASS_PROPERTY = "main.class";
+ private static final String GATEWAY_SERVER_MAIN_CLASS =
"org.apache.knox.gateway.GatewayServer";
+ private static final String[] CLASS_PATH_DELIMITERS = new String[]{",",
";"};
+
+ private final File base;
+ private final Properties properties;
+
+ public Extender(File base, Properties properties) {
+ this.base = base;
+ this.properties = properties;
+ }
+
+ public void extendClassPathProperty() throws IOException {
+ Path configFilePath = Paths.get(base.getPath(), CONFIG_PATH);
+ if
(GATEWAY_SERVER_MAIN_CLASS.equals(properties.getProperty(MAIN_CLASS_PROPERTY))
&& Files.isReadable(configFilePath)) {
+ String configContent = new
String(Files.readAllBytes(configFilePath), StandardCharsets.UTF_8);
+ extractExtensionPathIntoProperty(configContent);
+ }
+ }
+
+ protected void extractExtensionPathIntoProperty(String configContent) {
+ Pattern pattern = Pattern.compile(CLASSPATH_PROPERTY_PATTERN,
Pattern.DOTALL);
+ Matcher matcher = pattern.matcher(configContent);
+
+ if (matcher.find()) {
+ StringBuilder newClassPath = new
StringBuilder(matcher.group(1).trim());
+ if (newClassPath.length() > 0) {
+ if (!endsWithDelimiter(newClassPath.toString())) {
+ newClassPath.append(CLASS_PATH_DELIMITERS[1]);
+ }
+
newClassPath.append(properties.getProperty(CLASS_PATH_PROPERTY));
+ properties.setProperty(CLASS_PATH_PROPERTY,
newClassPath.toString());
+ }
Review Comment:
Ack.
Issue Time Tracking
-------------------
Worklog Id: (was: 946358)
Time Spent: 1h 10m (was: 1h)
> Add a classpath location for patches
> ------------------------------------
>
> Key: KNOX-3051
> URL: https://issues.apache.org/jira/browse/KNOX-3051
> Project: Apache Knox
> Issue Type: Improvement
> Components: Server
> Affects Versions: 2.0.0
> Reporter: Philip Zampino
> Priority: Minor
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> It would be convenient to have the ability to easily pre-pend classes to the
> Knox classpath for quickly applying/testing patches.
> If this could be configurable, that would be ideal, though I'm not sure it's
> possible.
> If hard-coded, we should consider whether or not this location should be
> within the Knox installation directory or external to it. There are pros and
> cons to both, especially when considering upgrades in managed environments.
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