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/*
* 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 shaded.shaded.org.eclipse.aether.internal.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.eclipse.aether.ConfigurationProperties;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.util.ConfigUtils;
/**
* Helps to sort pluggable components by their priority.
*/
final class PrioritizedComponents {
private static final String FACTORY_SUFFIX = "Factory";
private final Map configProps;
private final boolean useInsertionOrder;
private final List> components;
private int firstDisabled;
PrioritizedComponents(RepositorySystemSession session) {
this(session.getConfigProperties());
}
PrioritizedComponents(Map configurationProperties) {
configProps = configurationProperties;
useInsertionOrder = ConfigUtils.getBoolean(
configProps,
ConfigurationProperties.DEFAULT_IMPLICIT_PRIORITIES,
ConfigurationProperties.IMPLICIT_PRIORITIES);
components = new ArrayList<>();
firstDisabled = 0;
}
public void add(T component, float priority) {
Class type = getImplClass(component);
int index = components.size();
priority = useInsertionOrder ? -index : ConfigUtils.getFloat(configProps, priority, getConfigKeys(type));
PrioritizedComponent pc = new PrioritizedComponent<>(component, type, priority, index);
if (!useInsertionOrder) {
index = Collections.binarySearch(components, pc);
if (index < 0) {
index = -index - 1;
} else {
index++;
}
}
components.add(index, pc);
if (index <= firstDisabled && !pc.isDisabled()) {
firstDisabled++;
}
}
private static Class getImplClass(Object component) {
Class type = component.getClass();
// detect and ignore CGLIB-based proxy classes employed by Guice for AOP (cf. BytecodeGen.newEnhancer)
int idx = type.getName().indexOf("$$");
if (idx >= 0) {
Class base = type.getSuperclass();
if (base != null && idx == base.getName().length() && type.getName().startsWith(base.getName())) {
type = base;
}
}
return type;
}
static String[] getConfigKeys(Class type) {
List keys = new ArrayList<>();
keys.add(ConfigurationProperties.PREFIX_PRIORITY + type.getName());
String sn = type.getSimpleName();
keys.add(ConfigurationProperties.PREFIX_PRIORITY + sn);
if (sn.endsWith(FACTORY_SUFFIX)) {
keys.add(ConfigurationProperties.PREFIX_PRIORITY + sn.substring(0, sn.length() - FACTORY_SUFFIX.length()));
}
return keys.toArray(new String[0]);
}
public boolean isEmpty() {
return components.isEmpty();
}
public List> getAll() {
return components;
}
public List> getEnabled() {
return components.subList(0, firstDisabled);
}
public void list(StringBuilder buffer) {
int i = 0;
for (PrioritizedComponent component : components) {
if (i++ > 0) {
buffer.append(", ");
}
buffer.append(component.getType().getSimpleName());
if (component.isDisabled()) {
buffer.append(" (disabled)");
}
}
}
@Override
public String toString() {
return components.toString();
}
}