| /* |
| * Copyright 2000-2010 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. |
| */ |
| package org.jetbrains.android; |
| |
| import com.android.SdkConstants; |
| import com.intellij.openapi.fileTypes.StdFileTypes; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.containers.HashMap; |
| import com.intellij.util.containers.HashSet; |
| import com.intellij.util.indexing.*; |
| import com.intellij.util.io.DataExternalizer; |
| import com.intellij.util.io.EnumeratorStringDescriptor; |
| import com.intellij.util.io.KeyDescriptor; |
| import com.intellij.util.text.CharArrayUtil; |
| import com.intellij.util.xml.NanoXmlUtil; |
| import org.jetbrains.android.util.AndroidResourceUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @author Eugene.Kudelevsky |
| */ |
| public class AndroidIdIndex extends FileBasedIndexExtension<String, Set<String>> { |
| public static final ID<String, Set<String>> INDEX_ID = ID.create("android.id.index"); |
| public static final String MARKER = "$"; |
| |
| private static final DataIndexer<String, Set<String>, FileContent> INDEXER = new DataIndexer<String, Set<String>, FileContent>() { |
| @Override |
| @NotNull |
| public Map<String, Set<String>> map(@NotNull FileContent inputData) { |
| final CharSequence content = inputData.getContentAsText(); |
| |
| if (CharArrayUtil.indexOf(content, SdkConstants.NS_RESOURCES, 0) == -1) { |
| return Collections.emptyMap(); |
| } |
| final HashMap<String, Set<String>> map = new HashMap<String, Set<String>>(); |
| |
| NanoXmlUtil.parse(CharArrayUtil.readerFromCharSequence(inputData.getContentAsText()), new NanoXmlUtil.IXMLBuilderAdapter() { |
| @Override |
| public void addAttribute(String key, String nsPrefix, String nsURI, String value, String type) throws Exception { |
| super.addAttribute(key, nsPrefix, nsURI, value, type); |
| final boolean declaration = AndroidResourceUtil.isIdDeclaration(value); |
| |
| if (declaration || AndroidResourceUtil.isIdReference(value)) { |
| String id = AndroidResourceUtil.getResourceNameByReferenceText(value); |
| |
| if (id != null) { |
| if (declaration) { |
| id = "+" + id; |
| } |
| map.put(id, Collections.<String>emptySet()); |
| } |
| } |
| } |
| }); |
| if (map.size() > 0) { |
| map.put(MARKER, new HashSet<String>(map.keySet())); |
| } |
| return map; |
| } |
| }; |
| |
| private static final DataExternalizer<Set<String>> DATA_EXTERNALIZER = new DataExternalizer<Set<String>>() { |
| @Override |
| public void save(@NotNull DataOutput out, Set<String> value) throws IOException { |
| out.writeInt(value.size()); |
| for (String s : value) { |
| out.writeUTF(s); |
| } |
| } |
| |
| @Override |
| public Set<String> read(@NotNull DataInput in) throws IOException { |
| final int size = in.readInt(); |
| |
| if (size < 0 || size > 65535) { // 65K: maximum number of resources for a given type |
| // Something is very wrong (corrupt index); trigger an index rebuild. |
| throw new IOException("Corrupt Index: Size " + size); |
| } |
| |
| final Set<String> result = new HashSet<String>(size); |
| |
| for (int i = 0; i < size; i++) { |
| final String s = in.readUTF(); |
| result.add(s); |
| } |
| return result; |
| } |
| }; |
| |
| @NotNull |
| @Override |
| public ID<String, Set<String>> getName() { |
| return INDEX_ID; |
| } |
| |
| @NotNull |
| @Override |
| public DataIndexer<String, Set<String>, FileContent> getIndexer() { |
| return INDEXER; |
| } |
| |
| @NotNull |
| @Override |
| public KeyDescriptor<String> getKeyDescriptor() { |
| return new EnumeratorStringDescriptor(); |
| } |
| |
| @NotNull |
| @Override |
| public DataExternalizer<Set<String>> getValueExternalizer() { |
| return DATA_EXTERNALIZER; |
| } |
| |
| @NotNull |
| @Override |
| public FileBasedIndex.InputFilter getInputFilter() { |
| return new DefaultFileTypeSpecificInputFilter(StdFileTypes.XML) { |
| @Override |
| public boolean acceptInput(@NotNull final VirtualFile file) { |
| return file.isInLocalFileSystem(); |
| } |
| }; |
| } |
| |
| @Override |
| public boolean dependsOnFileContent() { |
| return true; |
| } |
| |
| @Override |
| public int getVersion() { |
| return 4; |
| } |
| } |