org.apache.karaf.features.internal.download.impl.DownloadManagerHelper Maven / Gradle / Ivy
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This bundle is the core implementation of the Karaf features support.
/*
* 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.karaf.features.internal.download.impl;
import java.util.Collection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public final class DownloadManagerHelper {
private static final String DEFAULT_IGNORED_PROTOCOL_PATTERN = "jar|war|war-i|warref|webbundle|wrap|spring|blueprint";
private static Pattern ignoredProtocolPattern;
static {
setIgnoredProtocolPattern(DEFAULT_IGNORED_PROTOCOL_PATTERN);
}
private DownloadManagerHelper() {
//Utility Class
}
public static Pattern getIgnoredProtocolPattern(){
return ignoredProtocolPattern;
}
private static void setIgnoredProtocolPattern(String pattern){
String defaultPattRegex = "^(" + pattern + "):.*$";
ignoredProtocolPattern = Pattern.compile(defaultPattRegex);
}
public static void setExtraProtocols( Collection protocols ){
StringBuilder sb = new StringBuilder( DEFAULT_IGNORED_PROTOCOL_PATTERN );
for (String proto : protocols) {
sb.append("|").append(proto);
}
setIgnoredProtocolPattern(sb.toString());
}
/**
* Strips download urls from wrapper protocols.
*
* @param url the given url.
* @return the stripped URL for the wrapper protocols.
*/
public static String stripUrl(String url) {
String strippedUrl = url;
Matcher matcher = ignoredProtocolPattern.matcher(strippedUrl);
while (matcher.matches()) {
String protocol = matcher.group(1);
strippedUrl = strippedUrl.substring(protocol.length() + 1);
matcher = ignoredProtocolPattern.matcher(strippedUrl);
}
if (strippedUrl.contains("?")) {
strippedUrl = strippedUrl.substring(0, strippedUrl.indexOf('?'));
}
if (strippedUrl.contains("$")) {
strippedUrl = strippedUrl.substring(0, strippedUrl.indexOf('$'));
}
if (strippedUrl.contains("#")) {
strippedUrl = strippedUrl.substring(0, strippedUrl.indexOf('#'));
}
if (strippedUrl.contains(";start-level=")) {
strippedUrl = strippedUrl.substring(0, strippedUrl.indexOf(";start-level="));
}
return strippedUrl;
}
public static String stripStartLevel(String url) {
String strippedUrl = url;
if (strippedUrl.contains(";start-level=")) {
strippedUrl = strippedUrl.substring(0, strippedUrl.indexOf(";start-level="));
}
return strippedUrl;
}
public static String stripInlinedMavenRepositoryUrl(String url) {
if (url.startsWith("mvn:") && url.contains("!")) {
return url.substring(4, url.indexOf('!'));
}
return null;
}
public static String removeInlinedMavenRepositoryUrl(String url) {
if (url.startsWith("mvn:") && url.contains("!")) {
return "mvn:" + url.substring(url.indexOf('!') + 1);
}
return url;
}
}