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/*
* Copyright 2023 The Bazel Authors. All rights reserved.
*
* 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.google.devtools.build.android.sandboxedsdktoolbox.sdkdependenciesmanifest;
import static com.google.devtools.build.android.sandboxedsdktoolbox.config.SdkModulesConfigUtils.getVersionMajor;
import com.android.bundle.SdkModulesConfigOuterClass.SdkModulesConfig;
import com.google.common.collect.ImmutableSet;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Path;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/** Writes an Android manifest that lists SDK dependencies for an app. */
final class AndroidManifestWriter {
private static final String ANDROID_NAME_ATTRIBUTE = "android:name";
private static final String ANDROID_VERSION_MAJOR_ATTRIBUTE = "android:versionMajor";
private static final String ANDROID_CERTIFICATE_DIGEST_ATTRIBUTE = "android:certDigest";
private static final String APPLICATION_ELEMENT_NAME = "application";
private static final String MANIFEST_ELEMENT_NAME = "manifest";
private static final String MANIFEST_NAMESPACE_URI = "http://schemas.android.com/apk/res/android";
private static final String MANIFEST_NAMESPACE_NAME = "xmlns:android";
private static final String MANIFEST_PACKAGE_ATTRIBUTE = "package";
private static final String SDK_DEPENDENCY_ELEMENT_NAME = "uses-sdk-library";
static void writeManifest(
String packageName,
String certificateDigest,
ImmutableSet<SdkModulesConfig> configs,
Path outputPath) {
Document root = newEmptyDocument();
Element manifestNode = root.createElement(MANIFEST_ELEMENT_NAME);
manifestNode.setAttribute(MANIFEST_NAMESPACE_NAME, MANIFEST_NAMESPACE_URI);
manifestNode.setAttribute(MANIFEST_PACKAGE_ATTRIBUTE, packageName);
root.appendChild(manifestNode);
Element applicationNode = root.createElement(APPLICATION_ELEMENT_NAME);
manifestNode.appendChild(applicationNode);
for (SdkModulesConfig config : configs) {
Element sdkDependencyElement = root.createElement(SDK_DEPENDENCY_ELEMENT_NAME);
sdkDependencyElement.setAttribute(ANDROID_NAME_ATTRIBUTE, config.getSdkPackageName());
sdkDependencyElement.setAttribute(
ANDROID_VERSION_MAJOR_ATTRIBUTE, Long.toString(getVersionMajor(config)));
sdkDependencyElement.setAttribute(ANDROID_CERTIFICATE_DIGEST_ATTRIBUTE, certificateDigest);
applicationNode.appendChild(sdkDependencyElement);
}
writeDocument(root, outputPath);
}
private static Document newEmptyDocument() {
try {
return DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
} catch (ParserConfigurationException e) {
throw new IllegalStateException("Failed to create new XML document.", e);
}
}
private static void writeDocument(Document document, Path outputPath) {
try (BufferedOutputStream outputStream =
new BufferedOutputStream(new FileOutputStream(outputPath.toFile()))) {
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(new DOMSource(document), new StreamResult(outputStream));
} catch (TransformerException | IOException e) {
throw new IllegalStateException("Failed to write manifest.", e);
}
}
private AndroidManifestWriter() {}
}
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