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/*******************************************************************************
* Copyright (c) 2010 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:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.jaxb.core.internal.platform;
import static org.eclipse.jpt.core.internal.XPointUtil.*;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jpt.core.JptCorePlugin;
import org.eclipse.jpt.core.internal.XPointUtil.XPointException;
import org.eclipse.jpt.jaxb.core.JaxbFacet;
import org.eclipse.jpt.jaxb.core.JptJaxbCorePlugin;
import org.eclipse.jpt.jaxb.core.platform.JaxbPlatformDefinition;
import org.eclipse.jpt.jaxb.core.platform.JaxbPlatformDescription;
import org.eclipse.jpt.jaxb.core.platform.JaxbPlatformGroupDescription;
import org.eclipse.jpt.jaxb.core.platform.JaxbPlatformManager;
import org.eclipse.jpt.utility.internal.KeyedSet;
import org.eclipse.jpt.utility.internal.iterables.SuperIterableWrapper;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
public class JaxbPlatformManagerImpl
implements JaxbPlatformManager {
static final String EXTENSION_POINT_ID = "jaxbPlatforms"; //$NON-NLS-1$
static final String QUALIFIED_EXTENSION_POINT_ID = JptJaxbCorePlugin.PLUGIN_ID_ + EXTENSION_POINT_ID;
static final String PLATFORM_GROUP_ELEMENT = "jaxbPlatformGroup"; //$NON-NLS-1$
static final String PLATFORM_ELEMENT = "jaxbPlatform"; //$NON-NLS-1$
static final String ID_ATTRIBUTE = "id"; //$NON-NLS-1$
static final String LABEL_ATTRIBUTE = "label"; //$NON-NLS-1$
static final String FACTORY_CLASS_ATTRIBUTE = "factoryClass"; //$NON-NLS-1$
static final String JAXB_FACET_VERSION_ATTRIBUTE = "jaxbFacetVersion"; //$NON-NLS-1$
static final String DEFAULT_ATTRIBUTE = "default"; //$NON-NLS-1$
static final String GROUP_ELEMENT = "group"; //$NON-NLS-1$
private static final JaxbPlatformManagerImpl INSTANCE = new JaxbPlatformManagerImpl();
public static JaxbPlatformManagerImpl instance() {
return INSTANCE;
}
private KeyedSet<String, JaxbPlatformGroupDescriptionImpl> platformGroupDescriptions;
private KeyedSet<String, JaxbPlatformDescriptionImpl> platformDescriptions;
// ********** constructor/initialization **********
private JaxbPlatformManagerImpl() {
super();
this.platformGroupDescriptions = new KeyedSet<String, JaxbPlatformGroupDescriptionImpl>();
this.platformDescriptions = new KeyedSet<String, JaxbPlatformDescriptionImpl>();
readExtensions();
}
private void readExtensions() {
final IExtensionRegistry registry = Platform.getExtensionRegistry();
final IExtensionPoint xpoint
= registry.getExtensionPoint(JptJaxbCorePlugin.PLUGIN_ID, EXTENSION_POINT_ID);
if (xpoint == null) {
throw new IllegalStateException();
}
List<IConfigurationElement> platformGroupConfigs = new ArrayList<IConfigurationElement>();
List<IConfigurationElement> platformConfigs = new ArrayList<IConfigurationElement>();
for (IExtension extension : xpoint.getExtensions()) {
for (IConfigurationElement element : extension.getConfigurationElements()) {
if (element.getName().equals(PLATFORM_GROUP_ELEMENT)) {
platformGroupConfigs.add(element);
}
else if (element.getName().equals(PLATFORM_ELEMENT)) {
platformConfigs.add(element);
}
}
}
for (IConfigurationElement element : platformGroupConfigs) {
readPlatformGroupExtension(element);
}
for (IConfigurationElement element : platformConfigs) {
readPlatformExtension(element);
}
}
private void readPlatformGroupExtension(IConfigurationElement element) {
try {
final JaxbPlatformGroupDescriptionImpl desc = new JaxbPlatformGroupDescriptionImpl();
// plug-in id
desc.setPluginId(element.getContributor().getName());
// id
desc.setId(findRequiredAttribute(element, ID_ATTRIBUTE));
if (this.platformGroupDescriptions.containsKey(desc.getId())) {
logDuplicateExtension(QUALIFIED_EXTENSION_POINT_ID, desc.getId());
throw new XPointException();
}
// label
desc.setLabel(findRequiredAttribute(element, LABEL_ATTRIBUTE));
this.platformGroupDescriptions.addItem(desc.getId(), desc);
}
catch (XPointException e) {
// Ignore and continue. The problem has already been reported to the user
// in the log.
}
}
private void readPlatformExtension(IConfigurationElement element) {
try {
final JaxbPlatformDescriptionImpl desc = new JaxbPlatformDescriptionImpl();
// plug-in id
desc.setPluginId(element.getContributor().getName());
// id
desc.setId(findRequiredAttribute(element, ID_ATTRIBUTE));
if (this.platformDescriptions.containsKey(desc.getId())) {
logDuplicateExtension(QUALIFIED_EXTENSION_POINT_ID, desc.getId());
throw new XPointException();
}
// label
desc.setLabel(findRequiredAttribute(element, LABEL_ATTRIBUTE));
// factory class
desc.setFactoryClassName(findRequiredAttribute(element, FACTORY_CLASS_ATTRIBUTE));
// JAXB facet version
String jaxbFacetVersionString = element.getAttribute(JAXB_FACET_VERSION_ATTRIBUTE);
if (jaxbFacetVersionString != null) {
IProjectFacetVersion jpaFacetVersion = JaxbFacet.FACET.getVersion(jaxbFacetVersionString);
if (jpaFacetVersion != null) {
desc.setJaxbFacetVersion(jpaFacetVersion);
}
else {
logInvalidValue(element, JAXB_FACET_VERSION_ATTRIBUTE, jaxbFacetVersionString);
throw new XPointException();
}
}
// default
String defaultString = element.getAttribute(DEFAULT_ATTRIBUTE);
if (defaultString != null) {
if (defaultString.equals("true")) {
desc.setDefault(true);
}
else if (defaultString.equals("false")) {
desc.setDefault(false);
}
else {
logInvalidValue(element, DEFAULT_ATTRIBUTE, defaultString);
throw new XPointException();
}
}
// group
String groupId = element.getAttribute(GROUP_ELEMENT);
if (groupId != null) {
JaxbPlatformGroupDescriptionImpl group = this.platformGroupDescriptions.getItem(groupId);
if (group != null) {
desc.setGroup(group);
group.addPlatform(desc);
}
else {
logInvalidValue(element, GROUP_ELEMENT, groupId);
throw new XPointException();
}
}
else {
JaxbPlatformGroupDescriptionImpl group = new JaxbPlatformGroupDescriptionImpl();
group.setPluginId(desc.getPluginId());
group.setId(desc.getId());
group.setLabel(desc.getLabel());
group.addPlatform(desc);
if (this.platformGroupDescriptions.containsKey(group.getId())) {
logInvalidValue(element, GROUP_ELEMENT, groupId);
throw new XPointException();
}
this.platformGroupDescriptions.addItem(group.getId(), group);
}
this.platformDescriptions.addItem(desc.getId(), desc);
}
catch (XPointException e) {
// Ignore and continue. The problem has already been reported to the user
// in the log.
}
}
// ********** public methods **********
public Iterable<JaxbPlatformGroupDescription> getJaxbPlatformGroups() {
return new SuperIterableWrapper<JaxbPlatformGroupDescription>(this.platformGroupDescriptions.getItemSet());
}
public JaxbPlatformGroupDescription getJaxbPlatformGroup(String groupId) {
return this.platformGroupDescriptions.getItem(groupId);
}
public Iterable<JaxbPlatformDescription> getJaxbPlatforms() {
return new SuperIterableWrapper<JaxbPlatformDescription>(this.platformDescriptions.getItemSet());
}
public JaxbPlatformDescription getJaxbPlatform(String platformId) {
return this.platformDescriptions.getItem(platformId);
}
public JaxbPlatformDescription getDefaultJaxbPlatform(IProjectFacetVersion jaxbFacetVersion) {
if (! jaxbFacetVersion.getProjectFacet().equals(JaxbFacet.FACET)) {
throw new IllegalArgumentException(jaxbFacetVersion.toString());
}
for (JaxbPlatformDescription platform : getJaxbPlatforms()) {
if (platform.isDefault() && platform.supportsJaxbFacetVersion(jaxbFacetVersion)) {
return platform;
}
}
return null;
}
public JaxbPlatformDefinition buildJaxbPlatformDefinition(IProject project) {
String jaxbPlatformId = JptCorePlugin.getJpaPlatformId(project);
JaxbPlatformDescriptionImpl platformDesc = this.platformDescriptions.getItem(jaxbPlatformId);
if (platformDesc == null) {
throw new IllegalArgumentException("Project does not have a recognized JAXB platform.");
}
return platformDesc.buildJaxbPlatformDefinition();
}
}
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