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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.JackFileException;
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.HasInputLibrary;
import com.android.jack.library.InputJackLibrary;
import com.android.jack.library.InputLibrary;
import com.android.jack.load.JackLoadingException;
import com.android.jack.load.PackageLoader;
import com.android.jack.lookup.JPhantomLookup;
import com.android.sched.util.location.Location;
import com.android.sched.vfs.InputVDir;
import com.android.sched.vfs.InputVElement;
import com.android.sched.vfs.InputVFile;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.annotation.Nonnull;
/**
* {@link PackageLoader} for package containing classes defined in jack files.
*/
public class JaycePackageLoader implements PackageLoader, HasInputLibrary {
@Nonnull
private final InputVDir dir;
@Nonnull
private final JPhantomLookup lookup;
@Nonnull
private final NodeLevel defaultLoadLevel;
@Nonnull
private final InputJackLibrary inputJackLibrary;
JaycePackageLoader(@Nonnull InputJackLibrary inputJackLibrary, @Nonnull InputVDir dir,
@Nonnull JPhantomLookup lookup, @Nonnull NodeLevel defaultLoadLevel) {
this.inputJackLibrary = inputJackLibrary;
this.dir = dir;
this.lookup = lookup;
this.defaultLoadLevel = defaultLoadLevel;
}
@Override
@Nonnull
public JDefinedClassOrInterface loadClassOrInterface(
@Nonnull JPackage loading, @Nonnull String simpleName) {
for (InputVElement sub : dir.list()) {
if (!sub.isVDir() && isJackFileNameOf(sub.getName(), simpleName)) {
try {
return new JayceClassOrInterfaceLoader(inputJackLibrary, (InputVFile) sub, lookup,
defaultLoadLevel).loadClassOrInterface(loading, simpleName);
} catch (IOException e) {
throw new JackLoadingException(sub.getLocation(), e);
} catch (JackFileException e) {
throw new JackLoadingException(sub.getLocation() , e);
}
}
}
throw new MissingJTypeLookupException(loading, simpleName);
}
@Override
@Nonnull
public Collection<String> getSubClassNames(@Nonnull JPackage loading) {
List<String> subs = new ArrayList<String>();
for (InputVElement sub : dir.list()) {
String fileName = sub.getName();
if (!sub.isVDir() && JayceFileImporter.isJackFileName(fileName)) {
subs.add(fileName.substring(0, fileName.length() - 5));
}
}
return subs;
}
@Nonnull
@Override
public PackageLoader getLoaderForSubPackage(@Nonnull JPackage loading,
@Nonnull String simpleName) throws JPackageLookupException {
for (InputVElement sub : dir.list()) {
if (sub.isVDir() && sub.getName().equals(simpleName)) {
return new JaycePackageLoader(inputJackLibrary, (InputVDir) sub, lookup, defaultLoadLevel);
}
}
throw new JPackageLookupException(simpleName, loading);
}
@Nonnull
@Override
public Collection<String> getSubPackageNames(@Nonnull JPackage loading) {
List<String> subs = new ArrayList<String>();
for (InputVElement sub : dir.list()) {
if (sub.isVDir()) {
subs.add(sub.getName());
}
}
return subs;
}
@Override
@Nonnull
public Location getLocation(@Nonnull JPackage loaded) {
return dir.getLocation();
}
private boolean isJackFileNameOf(@Nonnull String fileName, @Nonnull String typeName) {
return (fileName.length() > JayceFileImporter.JACK_EXTENSION_LENGTH) && (fileName.substring(0,
fileName.length() - JayceFileImporter.JACK_EXTENSION_LENGTH).equals(typeName)) && (fileName
.substring(fileName.length() - JayceFileImporter.JACK_EXTENSION_LENGTH).equalsIgnoreCase(
JayceFileImporter.JAYCE_FILE_EXTENSION));
}
@Override
public boolean isOnPath(@Nonnull JPackage loaded) {
return true;
}
@Override
@Nonnull
public InputLibrary getInputLibrary() {
return inputJackLibrary;
}
}
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