org.jboss.modules.ServiceResourceLoader Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2018 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.jboss.modules;
import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
*/
final class ServiceResourceLoader extends AbstractResourceLoader {
private final Map servicesMap;
ServiceResourceLoader(final Map map) {
servicesMap = map;
}
@Override
public Resource getResource(final String name) {
if (name.startsWith("META-INF/services/")) {
return servicesMap.get(name.substring("META-INF/services/".length()));
}
return null;
}
@Override
public Collection getPaths() {
return Collections.singleton("META-INF/services");
}
private static final String PREFIX = "data:text/plain;charset=UTF-8,";
static URLConnectionResource createResource(List implNames) {
int len = PREFIX.length();
Iterator iterator = implNames.iterator();
if (iterator.hasNext()) {
len = iterator.next().length();
while (iterator.hasNext()) {
len += 1 + iterator.next().length();
}
}
if (len == 0) {
return null;
}
StringBuilder sb = new StringBuilder(len);
sb.append(PREFIX);
iterator = implNames.iterator();
if (iterator.hasNext()) {
sb.append(iterator.next());
while (iterator.hasNext()) {
sb.append('\n');
sb.append(iterator.next());
}
}
try {
return new URLConnectionResource(new URL(sb.toString()));
} catch (IOException e) {
throw new IllegalStateException("Failed to create URL", e);
}
}
}