/*
* 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.ivy.osgi.p2;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.text.ParseException;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.ivy.osgi.filter.OSGiFilter;
import org.apache.ivy.osgi.filter.OSGiFilterParser;
import org.apache.ivy.osgi.p2.PropertiesParser.PropertiesHandler;
import org.apache.ivy.osgi.util.DelegatingHandler;
import org.apache.ivy.osgi.util.Version;
import org.apache.ivy.util.XMLHelper;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class P2ArtifactParser implements XMLInputParser {
private final P2Descriptor p2Descriptor;
private final String repoUrl;
public P2ArtifactParser(P2Descriptor p2Descriptor, String repoUrl) {
this.p2Descriptor = p2Descriptor;
this.repoUrl = repoUrl;
}
public void parse(InputStream in) throws ParseException, IOException, SAXException {
RepositoryHandler handler = new RepositoryHandler(p2Descriptor, repoUrl);
try {
XMLHelper.parse(in, null, handler, null);
} catch (ParserConfigurationException e) {
throw new SAXException(e);
}
}
private static class RepositoryHandler extends DelegatingHandler {
private static final String REPOSITORY = "repository";
// private static final String NAME = "name";
//
// private static final String TYPE = "type";
//
// private static final String VERSION = "version";
private Map<OSGiFilter, String> artifactPatterns = new LinkedHashMap<OSGiFilter, String>();
public RepositoryHandler(final P2Descriptor p2Descriptor, String repoUrl) {
super(REPOSITORY);
// addChild(new PropertiesHandler(), new ChildElementHandler<PropertiesHandler>() {
// public void childHanlded(PropertiesHandler child) {
// }
// });
addChild(new MappingsHandler(), new ChildElementHandler<MappingsHandler>() {
@Override
public void childHanlded(MappingsHandler child) {
for (Entry<String, String> entry : child.outputByFilter.entrySet()) {
OSGiFilter filter;
try {
filter = OSGiFilterParser.parse(entry.getKey());
} catch (ParseException e) {
throw new IllegalStateException();
}
artifactPatterns.put(filter, entry.getValue());
}
}
});
addChild(new ArtifactsHandler(p2Descriptor, artifactPatterns, repoUrl),
new ChildElementHandler<ArtifactsHandler>() {
@Override
public void childHanlded(ArtifactsHandler child) {
// nothing to do
}
});
}
// protected void handleAttributes(Attributes atts) {
// String name = atts.getValue(NAME);
// String type = atts.getValue(TYPE);
// String version = atts.getValue(VERSION);
// }
}
private static class MappingsHandler extends DelegatingHandler {
private static final String MAPPINGS = "mappings";
private static final String SIZE = "size";
Map<String, String> outputByFilter;
public MappingsHandler() {
super(MAPPINGS);
addChild(new RuleHandler(), new ChildElementHandler<RuleHandler>() {
@Override
public void childHanlded(RuleHandler child) {
outputByFilter.put(child.filter, child.output);
}
});
}
@Override
protected void handleAttributes(Attributes atts) {
int size = Integer.parseInt(atts.getValue(SIZE));
outputByFilter = new LinkedHashMap<String, String>(size);
}
}
private static class RuleHandler extends DelegatingHandler {
private static final String RULE = "rule";
private static final String FILTER = "filter";
private static final String OUTPUT = "output";
private String filter;
private String output;
public RuleHandler() {
super(RULE);
}
@Override
protected void handleAttributes(Attributes atts) {
filter = atts.getValue(FILTER);
output = atts.getValue(OUTPUT);
}
}
private static class ArtifactsHandler extends DelegatingHandler {
private static final String ARTIFACTS = "artifacts";
// private static final String SIZE = "size";
public ArtifactsHandler(final P2Descriptor p2Descriptor,
final Map<OSGiFilter, String> artifactPatterns, final String repoUrl) {
super(ARTIFACTS);
addChild(new ArtifactHandler(), new ChildElementHandler<ArtifactHandler>() {
@Override
public void childHanlded(ArtifactHandler child) throws SAXParseException {
String url = getPattern(child.p2Artifact, child.properties);
if (url != null) {
url = url.replaceAll("\\$\\{repoUrl\\}", repoUrl);
url = url.replaceAll("\\$\\{id\\}", child.p2Artifact.getId());
url = url.replaceAll("\\$\\{version\\}", child.p2Artifact.getVersion()
.toString());
URI uri;
try {
uri = new URL(url).toURI();
} catch (MalformedURLException e) {
throw new SAXParseException("Incorrect artifact url '" + url + "' ("
+ e.getMessage() + ")", getLocator(), e);
} catch (URISyntaxException e) {
throw new SAXParseException("Incorrect artifact url '" + url + "' ("
+ e.getMessage() + ")", getLocator(), e);
}
p2Descriptor.addArtifactUrl(child.p2Artifact.getClassifier(),
child.p2Artifact.getId(), child.p2Artifact.getVersion(), uri,
child.properties.get("format"));
}
}
private String getPattern(P2Artifact p2Artifact, Map<String, String> properties) {
Map<String, String> props = new HashMap<String, String>(properties);
props.put("classifier", p2Artifact.getClassifier());
for (Entry<OSGiFilter, String> pattern : artifactPatterns.entrySet()) {
if (pattern.getKey().eval(props)) {
return pattern.getValue();
}
}
return null;
}
});
}
// protected void handleAttributes(Attributes atts) {
// int size = Integer.parseInt(atts.getValue(SIZE));
// artifacts = new ArrayList(size);
// }
}
private static class ArtifactHandler extends DelegatingHandler {
private static final String ARTIFACT = "artifact";
private static final String CLASSIFIER = "classifier";
private static final String ID = "id";
private static final String VERSION = "version";
private P2Artifact p2Artifact;
private Map<String, String> properties;
public ArtifactHandler() {
super(ARTIFACT);
addChild(new PropertiesHandler(), new ChildElementHandler<PropertiesHandler>() {
@Override
public void childHanlded(PropertiesHandler child) {
properties = child.properties;
}
});
}
@Override
protected void handleAttributes(Attributes atts) throws SAXException {
String id = atts.getValue(ID);
Version version;
try {
version = new Version(atts.getValue(VERSION));
} catch (ParseException e) {
throw new SAXException("Incorrect version attribute on artifact '" + id + "': "
+ atts.getValue(VERSION) + " (" + e.getMessage() + ")");
}
String classifier = atts.getValue(CLASSIFIER);
p2Artifact = new P2Artifact(id, version, classifier);
}
}
}