plugins/org.symbian.tools.tmw.core/src/org/symbian/tools/tmw/core/internal/runtimes/RuntimesManagerImpl.java
/**
* Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Symbian Foundation - initial contribution.
* Contributors:
* Description:
* Overview:
* Details:
* Platforms/Drives/Compatibility:
* Assumptions/Requirement/Pre-requisites:
* Failures and causes:
*/
package org.symbian.tools.tmw.core.internal.runtimes;
import java.io.InputStream;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Platform;
import org.symbian.tools.tmw.core.TMWCore;
import org.symbian.tools.tmw.core.projects.ITMWProject;
import org.symbian.tools.tmw.core.runtimes.IApplicationLayoutProvider;
import org.symbian.tools.tmw.core.runtimes.IMobileWebRuntime;
import org.symbian.tools.tmw.core.runtimes.IMobileWebRuntimeManager;
import org.symbian.tools.tmw.core.runtimes.IPackager;
public final class RuntimesManagerImpl implements IMobileWebRuntimeManager {
private Map<IMobileWebRuntime, Map<IMobileWebRuntime, IPackager>> packagers;
private Map<String, IMobileWebRuntime> runtimes;
public RuntimesManagerImpl() {
collectRuntimes();
}
private void collectPackagers() {
packagers = new HashMap<IMobileWebRuntime, Map<IMobileWebRuntime, IPackager>>();
IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(
TMWCore.PLUGIN_ID, "packagers");
for (IConfigurationElement element : elements) {
IPackager packager = new LazyPackager(element);
Map<IMobileWebRuntime, IPackager> map = packagers.get(packager.getTargetRuntime());
if (map == null) {
map = new HashMap<IMobileWebRuntime, IPackager>();
packagers.put(packager.getTargetRuntime(), map);
}
map.put(packager.getSourceRuntime(), packager);
}
}
private void collectRuntimes() {
runtimes = new TreeMap<String, IMobileWebRuntime>();
IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(
TMWCore.PLUGIN_ID, "runtimes");
for (IConfigurationElement element : elements) {
final MobileWebRuntime runtime = new MobileWebRuntime(element);
runtimes.put(getInternalId(runtime.getId(), runtime.getVersion()), runtime);
}
}
public IMobileWebRuntime[] getAllRuntimes() {
if (runtimes == null) {
collectRuntimes();
}
final Collection<IMobileWebRuntime> rts = runtimes.values();
return rts.toArray(new IMobileWebRuntime[rts.size()]);
}
public IPackager getPackager(ITMWProject project) {
return getPackager(project, project.getTargetRuntime());
}
public IPackager getPackager(ITMWProject project, IMobileWebRuntime runtime) {
if (packagers == null) {
collectPackagers();
}
final Map<IMobileWebRuntime, IPackager> map = packagers.get(runtime);
if (map != null) {
return map.get(project.getTargetRuntime());
}
return null;
}
public IMobileWebRuntime getRuntime(String id, String version) {
if (runtimes == null) {
collectRuntimes();
}
final IMobileWebRuntime runtime = runtimes.get(getInternalId(id, version));
if (runtime == null) {
TMWCore.log(String.format("Runtime %s@%s", id, version), new Exception());
}
return runtime;
}
private String getInternalId(String id, String version) {
return id + ":" + version;
}
public static final class LazyProvider implements IApplicationLayoutProvider {
private final IConfigurationElement element;
private IApplicationLayoutProvider instance;
public LazyProvider(IConfigurationElement configurationElement) {
this.element = configurationElement;
}
public IPath getResourcePath(IFile file) {
return getDelegate().getResourcePath(file);
}
private IApplicationLayoutProvider getDelegate() {
if (instance == null) {
try {
instance = (IApplicationLayoutProvider) element.createExecutableExtension("class");
} catch (CoreException e) {
TMWCore.log(null, e);
instance = new IApplicationLayoutProvider() {
public IPath getResourcePath(IFile file) {
return null;
}
public InputStream getResourceFromPath(IProject project, IPath path) {
return null;
}
public IFile getWorkspaceFile(IProject project, IPath applicationPath) {
return null;
}
public IFile getIndexPage(IProject project) {
return null;
}
};
}
}
return instance;
}
public InputStream getResourceFromPath(IProject project, IPath path) throws CoreException {
return getDelegate().getResourceFromPath(project, path);
}
public IFile getWorkspaceFile(IProject project, IPath applicationPath) throws CoreException {
return getDelegate().getWorkspaceFile(project, applicationPath);
}
public IFile getIndexPage(IProject project) {
return getDelegate().getIndexPage(project);
}
}
}