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/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 com.android.jack.jayce;
import com.android.jack.Jack;
import com.android.jack.JackAbortException;
import com.android.jack.LibraryException;
import com.android.jack.backend.jayce.JayceFileImporter;
import com.android.jack.ir.ast.JDefinedClassOrInterface;
import com.android.jack.ir.ast.JPackage;
import com.android.jack.ir.ast.JPackageLookupException;
import com.android.jack.ir.ast.MissingJTypeLookupException;
import com.android.jack.library.FileType;
import com.android.jack.library.HasInputLibrary;
import com.android.jack.library.InputJackLibrary;
import com.android.jack.library.InputLibrary;
import com.android.jack.library.LibraryReadingException;
import com.android.jack.load.PackageLoader;
import com.android.jack.lookup.JPhantomLookup;
import com.android.jack.reporting.Reporter.Severity;
import com.android.jack.util.collect.UnmodifiableCollections;
import com.android.sched.util.codec.VariableName;
import com.android.sched.util.location.Location;
import com.android.sched.util.log.LoggerFactory;
import com.android.sched.vfs.InputVDir;
import com.android.sched.vfs.InputVElement;
import com.android.sched.vfs.InputVFile;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import javax.annotation.Nonnull;
/**
* {@link PackageLoader} for package containing classes defined in Jayce files.
*/
@VariableName("loader")
public class JaycePackageLoader implements PackageLoader, HasInputLibrary {
@Nonnull
private static Logger logger = LoggerFactory.getLogger();
@Nonnull
private final InputVDir packageVDir;
@Nonnull
private final JPhantomLookup lookup;
@Nonnull
private final NodeLevel defaultLoadLevel;
@Nonnull
private final InputJackLibrary inputJackLibrary;
@Nonnull
private final Map<String, InputVDir> vdirCache = new HashMap<String, InputVDir>();
@Nonnull
private final Map<String, InputVFile> jayceFileCache = new HashMap<String, InputVFile>();
@Nonnull
private final UnmodifiableCollections collections = Jack.getUnmodifiableCollections();
JaycePackageLoader(@Nonnull InputJackLibrary inputJackLibrary,
@Nonnull InputVDir packageVDir, @Nonnull JPhantomLookup lookup,
@Nonnull NodeLevel defaultLoadLevel) {
assert inputJackLibrary.containsFileType(FileType.JAYCE);
this.inputJackLibrary = inputJackLibrary;
this.packageVDir = packageVDir;
this.lookup = lookup;
this.defaultLoadLevel = defaultLoadLevel;
for (InputVElement sub : packageVDir.list()) {
String name = sub.getName();
if (sub.isVDir()) {
vdirCache.put(name, (InputVDir) sub);
} else if (JayceFileImporter.isJackFileName(name)) {
jayceFileCache.put(
name.substring(0, name.length() - JayceFileImporter.JACK_EXTENSION_LENGTH),
(InputVFile) sub);
}
}
}
@Override
@Nonnull
public JDefinedClassOrInterface loadClassOrInterface(
@Nonnull JPackage loading, @Nonnull String simpleName) throws MissingJTypeLookupException {
InputVFile inputVFile = jayceFileCache.get(simpleName);
if (inputVFile == null) {
throw new MissingJTypeLookupException(loading, simpleName);
}
try {
return new JayceClassOrInterfaceLoader(inputJackLibrary,
loading,
simpleName,
inputVFile,
lookup,
defaultLoadLevel).load();
} catch (LibraryException e) {
LibraryReadingException reportable = new LibraryReadingException(e);
Jack.getSession().getReporter().report(Severity.FATAL, reportable);
throw new JackAbortException(reportable);
}
}
@Override
@Nonnull
public Collection<String> getSubClassNames(@Nonnull JPackage loading) {
return collections.getUnmodifiableCollection(jayceFileCache.keySet());
}
@Nonnull
@Override
public PackageLoader getLoaderForSubPackage(@Nonnull JPackage loading,
@Nonnull String simpleName) throws JPackageLookupException {
InputVDir input = vdirCache.get(simpleName);
if (input == null) {
throw new JPackageLookupException(simpleName, loading);
}
return new JaycePackageLoader(inputJackLibrary, input, lookup, defaultLoadLevel);
}
@Nonnull
@Override
public Collection<String> getSubPackageNames(@Nonnull JPackage loading) {
return collections.getUnmodifiableCollection(vdirCache.keySet());
}
@Override
@Nonnull
public Location getLocation(@Nonnull JPackage loaded) {
return packageVDir.getLocation();
}
@Override
public boolean isOnPath(@Nonnull JPackage loaded) {
return true;
}
@Override
@Nonnull
public InputLibrary getInputLibrary() {
return inputJackLibrary;
}
}
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