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/******************************************************************************
* Copyright (c) 2010, 2018 Oracle
* 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:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
* Carl Anderson - Java 9 support
* John Collier - Java 10 support
******************************************************************************/
package org.eclipse.jst.common.project.facet.core.internal;
import java.util.Collections;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IncrementalProjectBuilder;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.launching.IVMInstall;
import org.eclipse.jdt.launching.JavaRuntime;
import org.eclipse.jst.common.project.facet.core.ClasspathHelper;
import org.eclipse.jst.common.project.facet.core.JavaFacet;
import org.eclipse.osgi.util.NLS;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class JavaFacetUtil
{
public static final String FILE_CLASSPATH = ".classpath"; //$NON-NLS-1$
public static final String FILE_JDT_CORE_PREFS = ".settings/org.eclipse.jdt.core.prefs"; //$NON-NLS-1$
private static final IPath CPE_PREFIX_FOR_EXEC_ENV
= new Path( "org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType" ); //$NON-NLS-1$
private static final Map<IProjectFacetVersion,String> FACET_VER_TO_EXEC_ENV = new HashMap<IProjectFacetVersion,String>();
static
{
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_3, "J2SE-1.3" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_4, "J2SE-1.4" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_5, "J2SE-1.5" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_6, "JavaSE-1.6" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_7, "JavaSE-1.7" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_1_8, "JavaSE-1.8" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_9, "JavaSE-9" ); //$NON-NLS-1$
FACET_VER_TO_EXEC_ENV.put( JavaFacet.VERSION_10, "JavaSE-10" ); //$NON-NLS-1$
}
public static String getCompilerLevel()
{
String level = JavaCore.getOption( JavaCore.COMPILER_COMPLIANCE );
if( level == null )
{
final Hashtable<?,?> defaults = JavaCore.getDefaultOptions();
level = (String) defaults.get( JavaCore.COMPILER_COMPLIANCE );
}
return level;
}
public static String getCompilerLevel( final IProject project )
{
final IJavaProject jproj = JavaCore.create( project );
String level = jproj.getOption( JavaCore.COMPILER_COMPLIANCE, false );
if( level == null )
{
level = getCompilerLevel();
}
return level;
}
public static void setCompilerLevel( final IProject project,
final IProjectFacetVersion fv )
throws CoreException
{
setCompilerLevel( project, fv.getVersionString() );
}
public static void setCompilerLevel( final IProject project,
final String level )
throws CoreException
{
final IJavaProject jproj = JavaCore.create( project );
final Map<String, String> options = jproj.getOptions( false );
JavaCore.setComplianceOptions( level, options );
jproj.setOptions( options );
}
public static void scheduleFullBuild( final IProject project )
{
// This code is modeled after the code in
// org.eclipse.jdt.internal.ui.util.CoreUtility.getBuildJob() method.
final IWorkspace ws = ResourcesPlugin.getWorkspace();
final String msg
= NLS.bind( Resources.buildingMsg, project.getName() );
final Job buildJob = new Job( msg )
{
public IStatus run( final IProgressMonitor monitor )
{
monitor.beginTask( msg, 2 );
try
{
project.build( IncrementalProjectBuilder.FULL_BUILD,
new SubProgressMonitor( monitor, 1 ) );
ws.build( IncrementalProjectBuilder.INCREMENTAL_BUILD,
new SubProgressMonitor( monitor, 1 ) );
}
catch( CoreException e )
{
return e.getStatus();
}
finally
{
monitor.done();
}
return Status.OK_STATUS;
}
public boolean belongsTo( final Object family )
{
return family == ResourcesPlugin.FAMILY_MANUAL_BUILD;
}
};
buildJob.setRule( ws.getRuleFactory().buildRule() );
buildJob.schedule();
}
public static void resetClasspath( final IProject project,
final IProjectFacetVersion oldver,
final IProjectFacetVersion newver )
throws CoreException
{
if( oldver != null )
{
ClasspathHelper.removeClasspathEntries( project, oldver );
}
// If this was a java project before it became a faceted project or
// the JRE container has been added manually, the above method will not
// delete the old JRE container. Do it manually.
removeJreContainer( project );
if( ! ClasspathHelper.addClasspathEntries( project, newver ) )
{
final IVMInstall vm = JavaRuntime.getDefaultVMInstall();
if( vm != null )
{
final IPath path = CPE_PREFIX_FOR_EXEC_ENV.append( getCorrespondingExecutionEnvironment( newver ) );
final IClasspathEntry cpe = JavaCore.newContainerEntry( path );
final List<IClasspathEntry> entries = Collections.singletonList( cpe );
ClasspathHelper.addClasspathEntries( project, newver, entries );
}
}
}
private static void removeJreContainer( final IProject proj )
throws CoreException
{
final IJavaProject jproj = JavaCore.create( proj );
final IClasspathEntry[] cp = jproj.getRawClasspath();
int pos = -1;
for( int i = 0; i < cp.length; i++ )
{
final IClasspathEntry cpe = cp[ i ];
if( cpe.getEntryKind() == IClasspathEntry.CPE_CONTAINER &&
cpe.getPath().segment( 0 ).equals( JavaRuntime.JRE_CONTAINER ) )
{
pos = i;
break;
}
}
if( pos == -1 )
{
return;
}
final IClasspathEntry[] newcp
= new IClasspathEntry[ cp.length - 1 ];
System.arraycopy( cp, 0, newcp, 0, pos );
System.arraycopy( cp, pos + 1, newcp, pos, newcp.length - pos );
jproj.setRawClasspath( newcp, null );
}
public static String getCorrespondingExecutionEnvironment( final IProjectFacetVersion fv )
{
final String res = FACET_VER_TO_EXEC_ENV.get( fv );
if( res == null )
{
throw new IllegalArgumentException( fv.toString() );
}
return res;
}
private static final class Resources
extends NLS
{
public static String buildingMsg;
static
{
initializeMessages( JavaFacetUtil.class.getName(),
Resources.class );
}
}
}
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