org.eclipse.m2e.jdt.internal.JavaElementsAdapterFactory.java Source code

Introduction

Here is the source code for org.eclipse.m2e.jdt.internal.JavaElementsAdapterFactory.java

Source

/*******************************************************************************
 * 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.jdt.internal;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdapterFactory;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer;
import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer.RequiredProjectWrapper;

import org.eclipse.m2e.core.MavenPlugin;
import org.eclipse.m2e.core.embedder.ArtifactKey;
import org.eclipse.m2e.core.project.IMavenProjectFacade;
import org.eclipse.m2e.core.project.IMavenProjectRegistry;
import org.eclipse.m2e.jdt.MavenJdtPlugin;

/**
 * Adapter factory for Java elements
 * 
 * @author Igor Fedorenko
 * @author Eugene Kuleshov
 */
@SuppressWarnings({ "restriction", "rawtypes" })
public class JavaElementsAdapterFactory implements IAdapterFactory {
    private static final Logger log = LoggerFactory.getLogger(JavaElementsAdapterFactory.class);

    private static final Class[] ADAPTER_LIST = new Class[] { ArtifactKey.class, IPath.class,
            IMavenProjectFacade.class };

    public Class[] getAdapterList() {
        return ADAPTER_LIST;
    }

    public Object getAdapter(Object adaptableObject, Class adapterType) {
        if (adapterType == ArtifactKey.class) {
            if (adaptableObject instanceof IPackageFragmentRoot) {
                IPackageFragmentRoot fragment = (IPackageFragmentRoot) adaptableObject;
                IProject project = fragment.getJavaProject().getProject();
                if (project.isAccessible() && fragment.isArchive()) {
                    try {
                        return getBuildPathManager().findArtifact(project, fragment.getPath());
                    } catch (CoreException ex) {
                        log.error("Can't find artifact for " + fragment, ex);
                        return null;
                    }
                }

            } else if (adaptableObject instanceof RequiredProjectWrapper) {
                IMavenProjectFacade projectFacade = getProjectFacade(adaptableObject);
                if (projectFacade != null) {
                    return projectFacade.getArtifactKey();
                }

            } else if (adaptableObject instanceof IJavaProject) {
                return ((IJavaProject) adaptableObject).getProject().getAdapter(ArtifactKey.class);

            }

        } else if (adapterType == IPath.class) {
            if (adaptableObject instanceof IJavaElement) {
                IResource resource = ((IJavaElement) adaptableObject).getResource();
                if (resource != null) {
                    return resource.getLocation();
                }
            }

        } else if (adapterType == IMavenProjectFacade.class) {
            if (adaptableObject instanceof IJavaElement) {
                IProject project = ((IJavaElement) adaptableObject).getJavaProject().getProject();
                IMavenProjectFacade projectFacade = getProjectFacade(project);
                if (projectFacade != null) {
                    return projectFacade;
                }

            } else if (adaptableObject instanceof RequiredProjectWrapper) {
                ClassPathContainer container = ((RequiredProjectWrapper) adaptableObject)
                        .getParentClassPathContainer();
                IProject project = container.getJavaProject().getProject();
                IMavenProjectFacade projectFacade = getProjectFacade(project);
                if (projectFacade != null) {
                    return projectFacade;
                }
            }
        }

        return null;
    }

    private BuildPathManager getBuildPathManager() {
        return (BuildPathManager) MavenJdtPlugin.getDefault().getBuildpathManager();
    }

    private IMavenProjectFacade getProjectFacade(Object adaptableObject) {
        RequiredProjectWrapper wrapper = (RequiredProjectWrapper) adaptableObject;
        return getProjectFacade(wrapper.getProject().getProject());
    }

    private IMavenProjectFacade getProjectFacade(IProject project) {
        IMavenProjectRegistry projectManager = MavenPlugin.getMavenProjectRegistry();
        return projectManager.create(project, new NullProgressMonitor());
    }

}