org.apache.karaf.features.internal.service.RepositoryImpl Maven / Gradle / Ivy
/*
* 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.service;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import java.net.URI;
import java.util.Objects;
import org.apache.karaf.features.Feature;
import org.apache.karaf.features.Repository;
import org.apache.karaf.features.internal.model.Features;
import org.apache.karaf.features.internal.model.JaxbUtil;
/**
* The repository implementation.
*/
public class RepositoryImpl implements Repository {
/** {@link URI original URI} of the resource where feature declarations were loaded from */
private final URI uri;
/** Transformed {@link Features model} of the repository */
private Features features;
private boolean blacklisted;
public RepositoryImpl(URI uri) {
this(uri, false);
}
public RepositoryImpl(URI uri, boolean validate) {
this.uri = uri;
load(validate);
}
/**
* Constructs a repository without any downloading
* @param uri
* @param features
* @param blacklisted
*/
public RepositoryImpl(URI uri, Features features, boolean blacklisted) {
this.uri = uri;
this.features = features;
this.blacklisted = blacklisted;
}
@Override
public URI getURI() {
return uri;
}
@Override
public String getName() {
return features.getName();
}
@Override
public URI[] getRepositories() {
return features.getRepository().stream()
.map(String::trim)
.map(URI::create)
.toArray(URI[]::new);
}
@Override
public URI[] getResourceRepositories() {
return features.getResourceRepository().stream()
.map(String::trim)
.map(URI::create)
.toArray(URI[]::new);
}
@Override
public Feature[] getFeatures() {
return features.getFeature()
.toArray(new Feature[features.getFeature().size()]);
}
public Features getFeaturesInternal() {
return features;
}
@Override
public boolean isBlacklisted() {
return blacklisted;
}
public void setBlacklisted(boolean blacklisted) {
this.blacklisted = blacklisted;
features.setBlacklisted(blacklisted);
}
private void load(boolean validate) {
if (features == null) {
try (InputStream inputStream = new InterruptibleInputStream(uri.toURL().openStream())) {
features = JaxbUtil.unmarshal(uri.toASCIIString(), inputStream, validate);
} catch (Exception e) {
throw new RuntimeException(e.getMessage() + " : " + uri, e);
}
}
}
/**
* An extension point to alter {@link Features JAXB model of features}
* @param processor
*/
public void processFeatures(FeaturesProcessor processor) {
processor.process(features);
if (blacklisted) {
// all features of blacklisted repository are blacklisted too
for (org.apache.karaf.features.internal.model.Feature feature : features.getFeature()) {
feature.setBlacklisted(true);
}
}
}
static class InterruptibleInputStream extends FilterInputStream {
InterruptibleInputStream(InputStream in) {
super(in);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedIOException();
}
return super.read(b, off, len);
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RepositoryImpl that = (RepositoryImpl) o;
return Objects.equals(uri, that.uri);
}
@Override
public int hashCode() {
return Objects.hash(uri);
}
@Override
public String toString() {
return getURI().toString();
}
}