/*
* Copyright 2013 The WicketForge-Team
*
* 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.
*/
package wicketforge.search;
import com.intellij.lang.properties.PropertiesImplUtil;
import com.intellij.lang.properties.psi.PropertiesFile;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.fileTypes.StdFileTypes;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiFile;
import com.intellij.util.indexing.FileContent;
import com.intellij.util.indexing.ID;
import com.intellij.util.messages.MessageBus;
import com.intellij.util.xml.NanoXmlUtil;
import com.intellij.util.xml.XmlFileHeader;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
public class PropertiesIndex extends WicketResourceIndexExtension {
private static final ID<String, Void> NAME = ID.create("WicketPropertiesIndex");
public PropertiesIndex(@NotNull MessageBus messageBus) {
super(messageBus);
}
@NotNull
@Override
public ID<String, Void> getName() {
return NAME;
}
@Override
public boolean acceptInput(@NotNull VirtualFile file) {
FileType fileType = file.getFileType();
return StdFileTypes.PROPERTIES.equals(fileType) || StdFileTypes.XML.equals(fileType);
}
@NotNull
@Override
public Map<String, Void> map(FileContent inputData) {
if (StdFileTypes.XML.equals(inputData.getFileType())) {
boolean isPropertiesXml = false;
try {
XmlFileHeader fileHeader = NanoXmlUtil.parseHeaderWithException(inputData.getFile());
isPropertiesXml = "properties".equals(fileHeader.getRootTagLocalName());
} catch (IOException ignore) {
}
if (!isPropertiesXml) {
return Collections.emptyMap(); // if not, nothing to map here
}
}
return super.map(inputData);
}
/**
* Returns all properties files for the passed PsiClass.
*
* @param psiClass PsiClass
* @return all properties or empty array if no such file exists.
*/
@NotNull
public static PsiFile[] getAllFiles(@NotNull final PsiClass psiClass) {
return getFilesByClass(NAME, psiClass, true);
}
/**
* Returns the base properties file for the passed PsiClass.
*
* @param psiClass PsiClass
* @return the base properties or null if no such file exists.
*/
@Nullable
public static PropertiesFile getBaseFile(@NotNull final PsiClass psiClass) {
PsiFile[] files = getFilesByClass(NAME, psiClass, false);
return files.length > 0 ? PropertiesImplUtil.getPropertiesFile(files[0]) : null;
}
}