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/*******************************************************************************
* Copyright (c) 2008-2010 Sonatype, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sonatype, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.m2e.core.embedder;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.InputStream;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.osgi.util.NLS;
import org.apache.maven.RepositoryUtils;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.model.DependencyManagement;
import org.apache.maven.project.MavenProject;
import org.sonatype.aether.artifact.ArtifactTypeRegistry;
import org.sonatype.aether.collection.CollectRequest;
import org.sonatype.aether.collection.DependencyCollectionException;
import org.sonatype.aether.collection.DependencyGraphTransformer;
import org.sonatype.aether.graph.DependencyNode;
import org.sonatype.aether.util.DefaultRepositorySystemSession;
import org.sonatype.aether.util.filter.ScopeDependencyFilter;
import org.sonatype.aether.util.graph.CloningDependencyVisitor;
import org.sonatype.aether.util.graph.FilteringDependencyVisitor;
import org.sonatype.aether.util.graph.transformer.ChainedDependencyGraphTransformer;
import org.sonatype.aether.util.graph.transformer.JavaEffectiveScopeCalculator;
import org.eclipse.m2e.core.MavenPlugin;
import org.eclipse.m2e.core.core.IMavenConstants;
import org.eclipse.m2e.core.internal.MavenPluginActivator;
import org.eclipse.m2e.core.internal.Messages;
import org.eclipse.m2e.core.project.IMavenProjectFacade;
import org.eclipse.m2e.core.project.IMavenProjectRegistry;
/**
* Model manager used to read and and modify Maven models
*
* @author Eugene Kuleshov
*
* XXX fix circular dependency
*/
public class MavenModelManager {
private static final Logger log = LoggerFactory.getLogger(MavenModelManager.class);
private final IMavenProjectRegistry projectManager;
private final IMaven maven;
public MavenModelManager(IMaven maven, IMavenProjectRegistry projectManager) {
this.maven = maven;
this.projectManager = projectManager;
}
public org.apache.maven.model.Model readMavenModel(InputStream reader) throws CoreException {
return maven.readModel(reader);
}
public org.apache.maven.model.Model readMavenModel(File pomFile) throws CoreException {
return maven.readModel(pomFile);
}
public org.apache.maven.model.Model readMavenModel(IFile pomFile) throws CoreException {
return maven.readModel(pomFile.getLocation().toFile());
}
public void createMavenModel(IFile pomFile, org.apache.maven.model.Model model) throws CoreException {
String pomFileName = pomFile.getLocation().toString();
if(pomFile.exists()) {
String msg = NLS.bind(Messages.MavenModelManager_error_pom_exists, pomFileName);
throw new CoreException(new Status(IStatus.ERROR, IMavenConstants.PLUGIN_ID, -1, msg, null));
}
try {
ByteArrayOutputStream buf = new ByteArrayOutputStream();
maven.writeModel(model, buf);
// XXX MNGECLIPSE-495
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setNamespaceAware(false);
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
Document document = documentBuilder.parse(new ByteArrayInputStream(buf.toByteArray()));
Element documentElement = document.getDocumentElement();
NamedNodeMap attributes = documentElement.getAttributes();
if(attributes == null || attributes.getNamedItem("xmlns") == null) { //$NON-NLS-1$
Attr attr = document.createAttribute("xmlns"); //$NON-NLS-1$
attr.setTextContent("http://maven.apache.org/POM/4.0.0"); //$NON-NLS-1$
documentElement.setAttributeNode(attr);
}
if(attributes == null || attributes.getNamedItem("xmlns:xsi") == null) { //$NON-NLS-1$
Attr attr = document.createAttribute("xmlns:xsi"); //$NON-NLS-1$
attr.setTextContent("http://www.w3.org/2001/XMLSchema-instance"); //$NON-NLS-1$
documentElement.setAttributeNode(attr);
}
if(attributes == null || attributes.getNamedItem("xsi:schemaLocation") == null) { //$NON-NLS-1$
Attr attr = document.createAttributeNS("http://www.w3.org/2001/XMLSchema-instance", "xsi:schemaLocation"); //$NON-NLS-1$ //$NON-NLS-2$
attr.setTextContent("http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"); //$NON-NLS-1$
documentElement.setAttributeNode(attr);
}
TransformerFactory transfac = TransformerFactory.newInstance();
Transformer trans = transfac.newTransformer();
trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); //$NON-NLS-1$
buf.reset();
trans.transform(new DOMSource(document), new StreamResult(buf));
pomFile.create(new ByteArrayInputStream(buf.toByteArray()), true, new NullProgressMonitor());
} catch(RuntimeException ex) {
String msg = NLS.bind(Messages.MavenModelManager_error_create, pomFileName, ex.toString());
throw new CoreException(new Status(IStatus.ERROR, IMavenConstants.PLUGIN_ID, -1, msg, ex));
} catch(Exception ex) {
String msg = NLS.bind(Messages.MavenModelManager_error_create, pomFileName, ex.toString());
throw new CoreException(new Status(IStatus.ERROR, IMavenConstants.PLUGIN_ID, -1, msg, ex));
}
}
public synchronized DependencyNode readDependencyTree(IFile file, String classpath,
IProgressMonitor monitor) throws CoreException {
monitor.setTaskName(Messages.MavenModelManager_monitor_reading);
MavenProject mavenProject = readMavenProject(file, monitor);
return readDependencyTree(mavenProject, classpath, monitor);
}
public synchronized DependencyNode readDependencyTree(MavenProject mavenProject,
String classpath, IProgressMonitor monitor) throws CoreException {
monitor.setTaskName(Messages.MavenModelManager_monitor_building);
IMaven maven = MavenPlugin.getMaven();
DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(maven.createSession(
maven.createExecutionRequest(monitor), mavenProject).getRepositorySession());
DependencyGraphTransformer transformer = new ChainedDependencyGraphTransformer(new JavaEffectiveScopeCalculator(),
new NearestVersionConflictResolver());
session.setDependencyGraphTransformer(transformer);
ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(maven.getProjectRealm(mavenProject));
ArtifactTypeRegistry stereotypes = session.getArtifactTypeRegistry();
CollectRequest request = new CollectRequest();
request.setRequestContext("project"); //$NON-NLS-1$
request.setRepositories(mavenProject.getRemoteProjectRepositories());
for(org.apache.maven.model.Dependency dependency : mavenProject.getDependencies()) {
request.addDependency(RepositoryUtils.toDependency(dependency, stereotypes));
}
DependencyManagement depMngt = mavenProject.getDependencyManagement();
if(depMngt != null) {
for(org.apache.maven.model.Dependency dependency : depMngt.getDependencies()) {
request.addManagedDependency(RepositoryUtils.toDependency(dependency, stereotypes));
}
}
DependencyNode node;
try {
node = MavenPluginActivator.getDefault().getRepositorySystem().collectDependencies(session, request).getRoot();
} catch(DependencyCollectionException ex) {
String msg = Messages.MavenModelManager_error_read;
log.error(msg, ex);
throw new CoreException(new Status(IStatus.ERROR, IMavenConstants.PLUGIN_ID, -1, msg, ex));
}
Collection<String> scopes = new HashSet<String>();
Collections.addAll(scopes, Artifact.SCOPE_SYSTEM, Artifact.SCOPE_COMPILE, Artifact.SCOPE_PROVIDED,
Artifact.SCOPE_RUNTIME, Artifact.SCOPE_TEST);
if(Artifact.SCOPE_COMPILE.equals(classpath)) {
scopes.remove(Artifact.SCOPE_COMPILE);
scopes.remove(Artifact.SCOPE_SYSTEM);
scopes.remove(Artifact.SCOPE_PROVIDED);
} else if(Artifact.SCOPE_RUNTIME.equals(classpath)) {
scopes.remove(Artifact.SCOPE_COMPILE);
scopes.remove(Artifact.SCOPE_RUNTIME);
} else if(Artifact.SCOPE_COMPILE_PLUS_RUNTIME.equals(classpath)) {
scopes.remove(Artifact.SCOPE_COMPILE);
scopes.remove(Artifact.SCOPE_SYSTEM);
scopes.remove(Artifact.SCOPE_PROVIDED);
scopes.remove(Artifact.SCOPE_RUNTIME);
} else {
scopes.clear();
}
CloningDependencyVisitor cloner = new CloningDependencyVisitor();
node.accept(new FilteringDependencyVisitor(cloner, new ScopeDependencyFilter(null, scopes)));
node = cloner.getRootNode();
return node;
} finally {
Thread.currentThread().setContextClassLoader(oldClassLoader);
}
}
public MavenProject readMavenProject(IFile file, IProgressMonitor monitor) throws CoreException {
IMavenProjectFacade projectFacade = projectManager.create(file, true, monitor);
MavenProject mavenProject = projectFacade.getMavenProject(monitor);
return mavenProject;
}
}
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