/*
* Copyright 2014 the original author or authors.
*
* 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.gradle.api.internal.tasks.compile.incremental.deps;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Multimap;
import org.gradle.internal.serialize.AbstractSerializer;
import org.gradle.internal.serialize.Decoder;
import org.gradle.internal.serialize.Encoder;
import org.gradle.internal.serialize.SetSerializer;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import static org.gradle.internal.serialize.BaseSerializerFactory.INTEGER_SERIALIZER;
public class ClassSetAnalysisData {
final Map<String, String> filePathToClassName;
final Map<String, DependentsSet> dependents;
final Map<String, Set<Integer>> classesToConstants;
final Map<Integer, Set<String>> literalsToClasses;
final Map<String, Set<String>> classesToChildren;
public ClassSetAnalysisData(Map<String, String> filePathToClassName, Map<String, DependentsSet> dependents, Multimap<String, Integer> classesToConstants, Multimap<Integer, String> literalsToClasses, Multimap<String, String> classesToChildren) {
this(filePathToClassName, dependents, asMap(classesToConstants), asMap(literalsToClasses), asMap(classesToChildren));
}
public ClassSetAnalysisData(Map<String, String> filePathToClassName, Map<String, DependentsSet> dependents, Map<String, Set<Integer>> classesToConstants, Map<Integer, Set<String>> literalsToClasses, Map<String, Set<String>> classesToChildren) {
this.filePathToClassName = filePathToClassName;
this.dependents = dependents;
this.classesToConstants = classesToConstants;
this.literalsToClasses = literalsToClasses;
this.classesToChildren = classesToChildren;
}
private static <K, V> Map<K, Set<V>> asMap(Multimap<K, V> multimap) {
ImmutableMap.Builder<K, Set<V>> builder = ImmutableMap.builder();
for (K key : multimap.keySet()) {
builder.put(key, ImmutableSet.copyOf(multimap.get(key)));
}
return builder.build();
}
public String getClassNameForFile(String filePath) {
return filePathToClassName.get(filePath);
}
public DependentsSet getDependents(String className) {
return dependents.get(className);
}
public Set<Integer> getConstants(String className) {
Set<Integer> integers = classesToConstants.get(className);
if (integers == null) {
return Collections.emptySet();
}
return integers;
}
public Set<String> getChildren(String className) {
Set<String> children = classesToChildren.get(className);
return children == null ? Collections.<String>emptySet() : children;
}
public static class Serializer extends AbstractSerializer<ClassSetAnalysisData> {
private static final SetSerializer<Integer> INTEGER_SET_SERIALIZER = new SetSerializer<Integer>(INTEGER_SERIALIZER, false);
@Override
public ClassSetAnalysisData read(Decoder decoder) throws Exception {
// Class names are de-duplicated when encoded
Map<Integer, String> classNameMap = new HashMap<Integer, String>();
int count = decoder.readSmallInt();
ImmutableMap.Builder<String, String> filePathToClassNameBuilder = ImmutableMap.builder();
for (int i = 0; i < count; i++) {
String filePath = decoder.readString();
String className = readClassName(decoder, classNameMap);
filePathToClassNameBuilder.put(filePath, className);
}
count = decoder.readSmallInt();
ImmutableMap.Builder<String, DependentsSet> dependentsBuilder = ImmutableMap.builder();
for (int i = 0; i < count; i++) {
String className = readClassName(decoder, classNameMap);
DependentsSet dependents = readDependentsSet(decoder, classNameMap);
dependentsBuilder.put(className, dependents);
}
count = decoder.readSmallInt();
ImmutableMap.Builder<String, Set<Integer>> classesToConstantsBuilder = ImmutableMap.builder();
for (int i = 0; i < count; i++) {
String className = readClassName(decoder, classNameMap);
Set<Integer> constants = INTEGER_SET_SERIALIZER.read(decoder);
classesToConstantsBuilder.put(className, constants);
}
count = decoder.readSmallInt();
ImmutableMap.Builder<Integer, Set<String>> literalsToClassesBuilder = ImmutableMap.builder();
for (int i = 0; i < count; i++) {
int literal = decoder.readInt();
int nameCount = decoder.readSmallInt();
ImmutableSet.Builder<String> namesBuilder = ImmutableSet.builder();
for (int j = 0; j < nameCount; j++) {
namesBuilder.add(readClassName(decoder, classNameMap));
}
literalsToClassesBuilder.put(literal, namesBuilder.build());
}
count = decoder.readSmallInt();
ImmutableMap.Builder<String, Set<String>> classNameToChildren = ImmutableMap.builder();
for (int i = 0; i < count; i++) {
String parent = readClassName(decoder, classNameMap);
int nameCount = decoder.readSmallInt();
ImmutableSet.Builder<String> namesBuilder = ImmutableSet.builder();
for (int j = 0; j < nameCount; j++) {
namesBuilder.add(readClassName(decoder, classNameMap));
}
classNameToChildren.put(parent, namesBuilder.build());
}
return new ClassSetAnalysisData(filePathToClassNameBuilder.build(), dependentsBuilder.build(), classesToConstantsBuilder.build(), literalsToClassesBuilder.build(), classNameToChildren.build());
}
@Override
public void write(Encoder encoder, ClassSetAnalysisData value) throws Exception {
// Deduplicate class names when encoding.
// This would be more efficient with a better data structure in ClassSetAnalysisData
Map<String, Integer> classNameMap = new HashMap<String, Integer>();
encoder.writeSmallInt(value.filePathToClassName.size());
for (Map.Entry<String, String> entry : value.filePathToClassName.entrySet()) {
encoder.writeString(entry.getKey());
writeClassName(entry.getValue(), classNameMap, encoder);
}
encoder.writeSmallInt(value.dependents.size());
for (Map.Entry<String, DependentsSet> entry : value.dependents.entrySet()) {
writeClassName(entry.getKey(), classNameMap, encoder);
writeDependentSet(entry.getValue(), classNameMap, encoder);
}
encoder.writeSmallInt(value.classesToConstants.size());
for (Map.Entry<String, Set<Integer>> entry : value.classesToConstants.entrySet()) {
writeClassName(entry.getKey(), classNameMap, encoder);
INTEGER_SET_SERIALIZER.write(encoder, entry.getValue());
}
encoder.writeSmallInt(value.literalsToClasses.size());
for (Map.Entry<Integer, Set<String>> entry : value.literalsToClasses.entrySet()) {
encoder.writeInt(entry.getKey());
encoder.writeSmallInt(entry.getValue().size());
for (String className : entry.getValue()) {
writeClassName(className, classNameMap, encoder);
}
}
encoder.writeSmallInt(value.classesToChildren.size());
for (Map.Entry<String, Set<String>> entry : value.classesToChildren.entrySet()) {
writeClassName(entry.getKey(), classNameMap, encoder);
encoder.writeSmallInt(entry.getValue().size());
for (String className : entry.getValue()) {
writeClassName(className, classNameMap, encoder);
}
}
}
private DependentsSet readDependentsSet(Decoder decoder, Map<Integer, String> classNameMap) throws IOException {
byte b = decoder.readByte();
if (b == 1) {
return new DependencyToAll(decoder.readNullableString());
}
int count = decoder.readSmallInt();
ImmutableSet.Builder<String> builder = ImmutableSet.builder();
for (int i = 0; i < count; i++) {
builder.add(readClassName(decoder, classNameMap));
}
return new DefaultDependentsSet(builder.build());
}
private void writeDependentSet(DependentsSet dependentsSet, Map<String, Integer> classNameMap, Encoder encoder) throws IOException {
if (dependentsSet.isDependencyToAll()) {
encoder.writeByte((byte) 1);
encoder.writeNullableString(dependentsSet.getDescription());
} else {
encoder.writeByte((byte) 2);
encoder.writeSmallInt(dependentsSet.getDependentClasses().size());
for (String className : dependentsSet.getDependentClasses()) {
writeClassName(className, classNameMap, encoder);
}
}
}
private String readClassName(Decoder decoder, Map<Integer, String> classNameMap) throws IOException {
int id = decoder.readSmallInt();
if (id == 0) {
id = decoder.readSmallInt();
String className = decoder.readString();
classNameMap.put(id, className);
return className;
}
return classNameMap.get(id);
}
private void writeClassName(String className, Map<String, Integer> classIdMap, Encoder encoder) throws IOException {
Integer id = classIdMap.get(className);
if (id == null) {
id = classIdMap.size() + 1;
classIdMap.put(className, id);
encoder.writeSmallInt(0);
encoder.writeSmallInt(id);
encoder.writeString(className);
} else {
encoder.writeSmallInt(id);
}
}
}
}