| /* |
| * 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.netbeans.modules.j2ee.persistence.util; |
| |
| import java.lang.ref.WeakReference; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.logging.Logger; |
| import org.netbeans.api.java.classpath.ClassPath; |
| import org.netbeans.api.java.project.JavaProjectConstants; |
| import org.netbeans.api.project.Project; |
| import org.netbeans.api.project.ProjectUtils; |
| import org.netbeans.api.project.SourceGroup; |
| import org.netbeans.api.project.SourceGroupModifier; |
| import org.netbeans.api.project.Sources; |
| import org.netbeans.modules.j2ee.persistence.api.PersistenceEnvironment; |
| import org.netbeans.modules.j2ee.persistence.api.PersistenceLocation; |
| import org.netbeans.spi.java.classpath.ClassPathProvider; |
| import org.netbeans.spi.project.ProjectServiceProvider; |
| import org.openide.filesystems.FileObject; |
| |
| /** |
| * |
| * @author sp153251 |
| */ |
| @ProjectServiceProvider(service=PersistenceEnvironment.class, projectType={ |
| "org-netbeans-modules-maven", |
| "org-netbeans-modules-java-j2seproject", |
| "org-netbeans-modules-web-project", |
| "org-netbeans-modules-j2ee-ejbjarproject" |
| }) |
| public class PersistenceEnvironmentImpl implements PersistenceEnvironment{ |
| /** Handle to the current project to which this HibernateEnvironment is bound*/ |
| private Project project; |
| private Logger logger = Logger.getLogger(PersistenceEnvironmentImpl.class.getName()); |
| private WeakReference<CustomClassLoader> loaderRef; |
| |
| /** |
| * Creates a new hibernate environment for this NetBeans project. |
| * |
| * @param project NB project. |
| */ |
| public PersistenceEnvironmentImpl(Project project) { |
| this.project = project; |
| } |
| /** |
| * Prepares and returns a custom classloader for this project. |
| * The classloader is capable of loading project classes and resources. |
| * |
| * @param classpaths, custom classpaths that are registered along with project based classpath. |
| * @return classloader which is a URLClassLoader instance. |
| */ |
| @Override |
| public ClassLoader getProjectClassLoader(URL[] classpaths) { |
| CustomClassLoader customClassLoader = new CustomClassLoader(classpaths, getClass().getClassLoader()); |
| if(loaderRef !=null){ |
| CustomClassLoader cL = loaderRef.get(); |
| if(cL != null){ |
| URL[] oldUrls = cL.getURLs(); |
| classpaths = customClassLoader.getURLs();//reassign just in case if CustomClassLoader may modify assigned urls to have proper comparison below. |
| if(Arrays.equals(oldUrls, classpaths)) { |
| return cL; |
| } |
| } |
| } |
| loaderRef = new WeakReference<CustomClassLoader>((CustomClassLoader) customClassLoader); |
| return customClassLoader; |
| } |
| /** |
| * Returns the project classpath including project build paths. |
| * Can be used to set classpath for custom classloader. |
| * |
| * @param projectFile may not be used in method realization |
| * @return List of java.io.File objects representing each entry on the classpath. |
| */ |
| @Override |
| public List<URL> getProjectClassPath(FileObject projectFile) { |
| List<URL> projectClassPathEntries = new ArrayList<URL>(); |
| SourceGroup[] sgs = ProjectUtils.getSources(project).getSourceGroups(JavaProjectConstants.SOURCES_TYPE_JAVA); |
| if (sgs.length < 1) { |
| return projectClassPathEntries; |
| } |
| FileObject sourceRoot = sgs[0].getRootFolder(); |
| ClassPathProvider cpProv = project.getLookup().lookup(ClassPathProvider.class); |
| ClassPath cp = cpProv.findClassPath(sourceRoot, ClassPath.EXECUTE); |
| if(cp == null){ |
| cp = cpProv.findClassPath(sourceRoot, ClassPath.COMPILE); |
| } |
| for (ClassPath.Entry cpEntry : cp.entries()) { |
| if(cpEntry.isValid()){ |
| //if project isn't build, there may be number of invalid entries and may be in some other cases |
| projectClassPathEntries.add(cpEntry.getURL()); |
| } |
| } |
| |
| return projectClassPathEntries; |
| } |
| |
| /** |
| * Returns the project classpath including project build paths. |
| * Can be used to set classpath for custom classloader. |
| * |
| * @return List of java.io.File objects representing each entry on the classpath. |
| */ |
| @Override |
| public List<URL> getProjectClassPath() { |
| List<URL> projectClassPathEntries = new ArrayList<URL>(); |
| for (SourceGroup sourceGroup : getSourceGroups(project)) { |
| if (sourceGroup == null) { |
| continue; |
| } |
| ClassPath cp = ClassPath.getClassPath(sourceGroup.getRootFolder(), ClassPath.COMPILE); |
| |
| for (ClassPath.Entry cpEntry : cp.entries()) { |
| projectClassPathEntries.add(cpEntry.getURL()); |
| } |
| } |
| |
| return projectClassPathEntries; |
| } |
| |
| /** |
| * Returns the NetBeans project to which this HibernateEnvironment instance is bound. |
| * |
| * @return NetBeans project. |
| */ |
| @Override |
| public Project getProject() { |
| return project; |
| } |
| |
| @Override |
| public FileObject getLocation() { |
| return PersistenceLocation.getLocation(project); |
| } |
| |
| |
| |
| private static SourceGroup[] getSourceGroups(Project project) { |
| Sources projectSources = ProjectUtils.getSources(project); |
| // first, try to get resources |
| SourceGroup[] resources = projectSources.getSourceGroups(JavaProjectConstants.SOURCES_TYPE_RESOURCES); |
| if (resources.length > 0) { |
| return resources; |
| } |
| // try to create it |
| SourceGroup resourcesSourceGroup = SourceGroupModifier.createSourceGroup( |
| project, JavaProjectConstants.SOURCES_TYPE_RESOURCES, JavaProjectConstants.SOURCES_HINT_MAIN); |
| if (resourcesSourceGroup != null) { |
| return new SourceGroup[] {resourcesSourceGroup}; |
| } |
| // fallback to java sources |
| return projectSources.getSourceGroups(JavaProjectConstants.SOURCES_TYPE_JAVA); |
| } |
| } |