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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* Licensed 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.
*/
/*
* User: anna
* Date: 26-Dec-2007
*/
package com.intellij.openapi.roots.impl;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.LanguageLevelProjectExtension;
import com.intellij.openapi.roots.ProjectExtension;
import com.intellij.openapi.util.InvalidDataException;
import com.intellij.openapi.util.WriteExternalException;
import com.intellij.pom.java.LanguageLevel;
import org.jdom.Element;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
public class LanguageLevelProjectExtensionImpl extends LanguageLevelProjectExtension {
private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.roots.impl.LanguageLevelProjectExtensionImpl");
@Deprecated
@NonNls private static final String ASSERT_KEYWORD_ATTR = "assert-keyword";
@Deprecated
@NonNls private static final String JDK_15_ATTR = "jdk-15";
private LanguageLevel myLanguageLevel = LanguageLevel.JDK_1_6;
private final Project myProject;
public LanguageLevelProjectExtensionImpl(final Project project) {
myProject = project;
}
private void readExternal(final Element element) {
String level = element.getAttributeValue("languageLevel");
if (level == null) {
myLanguageLevel = migrateFromIdea7(element);
}
else {
myLanguageLevel = LanguageLevel.valueOf(level);
}
}
private static LanguageLevel migrateFromIdea7(Element element) {
final boolean assertKeyword = Boolean.valueOf(element.getAttributeValue(ASSERT_KEYWORD_ATTR)).booleanValue();
final boolean jdk15 = Boolean.valueOf(element.getAttributeValue(JDK_15_ATTR)).booleanValue();
if (jdk15) {
return LanguageLevel.JDK_1_5;
}
else if (assertKeyword) {
return LanguageLevel.JDK_1_4;
}
else {
return LanguageLevel.JDK_1_3;
}
}
private void writeExternal(final Element element) {
element.setAttribute("languageLevel", myLanguageLevel.name());
writeAttributesForIdea7(element);
}
private void writeAttributesForIdea7(Element element) {
final boolean is14 = LanguageLevel.JDK_1_4.equals(myLanguageLevel);
final boolean is15 = myLanguageLevel.compareTo(LanguageLevel.JDK_1_5) >= 0;
element.setAttribute(ASSERT_KEYWORD_ATTR, Boolean.toString(is14 || is15));
element.setAttribute(JDK_15_ATTR, Boolean.toString(is15));
}
@Override
@NotNull
public LanguageLevel getLanguageLevel() {
return myLanguageLevel;
}
@Override
public void setLanguageLevel(@NotNull LanguageLevel languageLevel) {
if (myLanguageLevel != languageLevel) {
myLanguageLevel = languageLevel;
languageLevelsChanged();
}
}
@Override
public void languageLevelsChanged() {
if (!myProject.isDefault()) {
JavaLanguageLevelPusher.pushLanguageLevel(myProject);
}
}
@Override
public void reloadProjectOnLanguageLevelChange(@NotNull LanguageLevel languageLevel, boolean forceReload) {
LOG.warn("Calling deprecated LanguageLevelProjectExtensionImpl.reloadProjectOnLanguageLevelChange, while project reloading is not needed on language level changes");
}
public static class MyProjectExtension extends ProjectExtension {
private final Project myProject;
public MyProjectExtension(final Project project) {
myProject = project;
}
@Override
public void readExternal(final Element element) throws InvalidDataException {
((LanguageLevelProjectExtensionImpl)getInstance(myProject)).readExternal(element);
}
@Override
public void writeExternal(final Element element) throws WriteExternalException {
((LanguageLevelProjectExtensionImpl)getInstance(myProject)).writeExternal(element);
}
}
}
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