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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.project;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.osgi.util.NLS;
import org.apache.maven.model.Model;
import org.apache.maven.model.Profile;
import org.eclipse.m2e.core.embedder.MavenModelManager;
import org.eclipse.m2e.core.internal.IMavenConstants;
import org.eclipse.m2e.core.internal.Messages;
/**
* @author Eugene Kuleshov
*/
public class LocalProjectScanner extends AbstractProjectScanner<MavenProjectInfo> {
private final File workspaceRoot;
private final List<String> folders;
private final boolean basedirRemameRequired;
private Set<File> scannedFolders = new HashSet<File>();
private final MavenModelManager modelManager;
public LocalProjectScanner(File workspaceRoot, String folder, boolean needsRename, MavenModelManager modelManager) {
this(workspaceRoot, Collections.singletonList(folder), needsRename, modelManager);
}
public LocalProjectScanner(File workspaceRoot, List<String> folders, boolean basedirRemameRequired,
MavenModelManager modelManager) {
this.workspaceRoot = workspaceRoot;
this.folders = folders;
this.basedirRemameRequired = basedirRemameRequired;
this.modelManager = modelManager;
}
public void run(IProgressMonitor monitor) throws InterruptedException {
SubMonitor subMonitor = SubMonitor.convert(monitor, Messages.LocalProjectScanner_task_scanning, 1);
subMonitor.beginTask(Messages.LocalProjectScanner_task_scanning, IProgressMonitor.UNKNOWN);
try {
for(String folderName : folders) {
try {
File folder = new File(folderName).getCanonicalFile();
scanFolder(folder, "", new SubProgressMonitor(subMonitor, IProgressMonitor.UNKNOWN)); //$NON-NLS-1$
} catch(IOException ex) {
addError(ex);
}
}
} finally {
subMonitor.done();
}
}
private void scanFolder(File baseDir, String rootRelPath, IProgressMonitor monitor) throws InterruptedException {
if(monitor.isCanceled()) {
throw new InterruptedException();
}
monitor.subTask(baseDir.toString());
monitor.worked(1);
// Don't scan the .metadata folder
if(!baseDir.exists() || !baseDir.isDirectory() || IMavenConstants.METADATA_FOLDER.equals(baseDir.getName())) {
return;
}
try {
if(scannedFolders.contains(baseDir.getCanonicalFile())) {
return;
}
} catch(IOException ex1) {
addError(ex1);
return;
}
MavenProjectInfo projectInfo = readMavenProjectInfo(baseDir, rootRelPath, null); //$NON-NLS-1$
if(projectInfo != null) {
addProject(projectInfo);
return; // don't scan subfolders of the Maven project
}
File[] files = baseDir.listFiles();
if(files == null) {
addError(new Exception(NLS.bind(Messages.LocalProjectScanner_accessDeniedFromFolder, baseDir.getAbsolutePath())));
return;
}
for(int i = 0; i < files.length; i++ ) {
File file;
try {
file = files[i].getCanonicalFile();
if(file.isDirectory()) {
scanFolder(file, rootRelPath + "/" + file.getName(), monitor); //$NON-NLS-1$
}
} catch(IOException ex) {
addError(ex);
}
}
}
private MavenProjectInfo readMavenProjectInfo(File baseDir, String modulePath, MavenProjectInfo parentInfo) {
try {
baseDir = baseDir.getCanonicalFile();
File pomFile = new File(baseDir, IMavenConstants.POM_FILE_NAME);
if(!pomFile.exists()) {
return null;
}
if(!scannedFolders.add(baseDir)) {
return null; // we already know this project
//mkleint: well, if the project is first scanned standalone and later scanned via parent reference, the parent ref gets thrown away??
}
Model model = modelManager.readMavenModel(pomFile);
String pomName = modulePath + "/" + IMavenConstants.POM_FILE_NAME; //$NON-NLS-1$
MavenProjectInfo projectInfo = newMavenProjectInfo(pomName, pomFile, model, parentInfo);
//We only want to optionally rename the base directory not any sub directory
if(parentInfo == null) {
projectInfo.setBasedirRename(getBasedirRename(projectInfo));
}
Map<String, Set<String>> modules = new LinkedHashMap<String, Set<String>>();
for(String module : model.getModules()) {
if(module.endsWith("/pom.xml")) { //$NON-NLS-1$
module = module.substring(0, module.length() - "/pom.xml".length()); //$NON-NLS-1$
}
modules.put(module, new HashSet<String>());
}
for(Profile profile : model.getProfiles()) {
for(String module : profile.getModules()) {
if(module.endsWith("/pom.xml")) { //$NON-NLS-1$
module = module.substring(0, module.length() - "/pom.xml".length()); //$NON-NLS-1$
}
Set<String> profiles = modules.get(module);
if(profiles == null) {
profiles = new HashSet<String>();
modules.put(module, profiles);
}
profiles.add(profile.getId());
}
}
for(Map.Entry<String, Set<String>> e : modules.entrySet()) {
String module = e.getKey();
Set<String> profiles = e.getValue();
File moduleBaseDir = new File(baseDir, module);
MavenProjectInfo moduleInfo = readMavenProjectInfo(moduleBaseDir, module, projectInfo);
if(moduleInfo != null) {
moduleInfo.addProfiles(profiles);
projectInfo.add(moduleInfo);
}
}
return projectInfo;
} catch(CoreException ex) {
addError(ex);
} catch(IOException ex) {
addError(ex);
}
return null;
}
protected MavenProjectInfo newMavenProjectInfo(String label, File pomFile, Model model, MavenProjectInfo parent) {
return new MavenProjectInfo(label, pomFile, model, parent);
}
public String getDescription() {
return folders.toString();
}
private int getBasedirRename(MavenProjectInfo mavenProjectInfo) throws IOException {
if(basedirRemameRequired) {
return MavenProjectInfo.RENAME_REQUIRED;
}
return MavenProjectInfo.RENAME_NO;
}
}
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