Merge "Create builder for AppInstallMetadata" (c4f3d387) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/integrity/model/AppInstallMetadata.java

+140 −15

Original line number	Diff line number	Diff line
		@@ -16,29 +16,154 @@

		package com.android.server.integrity.model;

		import static com.android.internal.util.Preconditions.checkArgument;
		import static com.android.internal.util.Preconditions.checkNotNull;

		import android.annotation.Nullable;

		/**
		* The app install metadata.
		*
		* <p>The integrity component retrieves metadata for app installs from package manager, passing it
		* to the rule evaluation engine to evaluate the metadata against the rules.
		*
		* <p>Instances of this class are immutable.
		*/
		public final class AppInstallMetadata {
		final String mPackageName;
		private final String mPackageName;
		// Raw string encoding for the SHA-256 hash of the certificate of the app.
		final String mAppCertificate;
		final String mInstallerName;
		private final String mAppCertificate;
		private final String mInstallerName;
		// Raw string encoding for the SHA-256 hash of the certificate of the installer.
		final String mInstallerCertificate;
		final int mVersionCode;
		final boolean mIsPreInstalled;

		public AppInstallMetadata(String packageName, String appCertificate, String installerName,
		String installerCertificate, int versionCode, boolean isPreInstalled) {
		this.mPackageName = packageName;
		this.mAppCertificate = appCertificate;
		this.mInstallerName = installerName;
		this.mInstallerCertificate = installerCertificate;
		private final String mInstallerCertificate;
		private final int mVersionCode;
		private final boolean mIsPreInstalled;

		private AppInstallMetadata(Builder builder) {
		this.mPackageName = builder.mPackageName;
		this.mAppCertificate = builder.mAppCertificate;
		this.mInstallerName = builder.mInstallerName;
		this.mInstallerCertificate = builder.mInstallerCertificate;
		this.mVersionCode = builder.mVersionCode;
		this.mIsPreInstalled = builder.mIsPreInstalled;
		}

		public String getPackageName() {
		return mPackageName;
		}

		public String getAppCertificate() {
		return mAppCertificate;
		}

		@Nullable
		public String getInstallerName() {
		return mInstallerName;
		}

		@Nullable
		public String getInstallerCertificate() {
		return mInstallerCertificate;
		}

		/**
		* @see AppInstallMetadata.Builder#setVersionCode(int)
		*/
		public int getVersionCode() {
		return mVersionCode;
		}

		/**
		* @see AppInstallMetadata.Builder#setIsPreInstalled(boolean)
		*/
		public boolean isPreInstalled() {
		return mIsPreInstalled;
		}

		/**
		* Builder class for constructing {@link AppInstallMetadata} objects.
		*/
		public static final class Builder {
		private String mPackageName;
		private String mAppCertificate;
		private String mInstallerName;
		private String mInstallerCertificate;
		private int mVersionCode;
		private boolean mIsPreInstalled;

		/**
		* Set package name of the app to be installed.
		*
		* @see AppInstallMetadata#getPackageName()
		*/
		public Builder setPackageName(String packageName) {
		this.mPackageName = checkNotNull(packageName);
		return this;
		}

		/**
		* Set certificate of the app to be installed.
		*
		* <p>It is represented as the raw string encoding for the SHA-256 hash of the certificate
		* of the app.
		*
		* @see AppInstallMetadata#getAppCertificate()
		*/
		public Builder setAppCertificate(String appCertificate) {
		this.mAppCertificate = checkNotNull(appCertificate);
		return this;
		}

		/**
		* Set name of the installer installing the app.
		*
		* @see AppInstallMetadata#getInstallerName()
		*/
		public Builder setInstallerName(String installerName) {
		this.mInstallerName = checkNotNull(installerName);
		return this;
		}

		/**
		* Set certificate of the installer installing the app.
		*
		* <p>It is represented as the raw string encoding for the SHA-256 hash of the certificate
		* of the installer.
		*
		* @see AppInstallMetadata#getInstallerCertificate()
		*/
		public Builder setInstallerCertificate(String installerCertificate) {
		this.mInstallerCertificate = checkNotNull(installerCertificate);
		return this;
		}

		/**
		* Set version code of the app to be installed.
		*
		* @see AppInstallMetadata#getVersionCode()
		*/
		public Builder setVersionCode(int versionCode) {
		this.mVersionCode = versionCode;
		return this;
		}

		/**
		* Set whether the app is pre-installed on the device or not.
		*
		* @see AppInstallMetadata#isPreInstalled()
		*/
		public Builder setIsPreInstalled(boolean isPreInstalled) {
		this.mIsPreInstalled = isPreInstalled;
		return this;
		}

		/**
		* Build {@link AppInstallMetadata}.
		*/
		public AppInstallMetadata build() {
		checkArgument(mPackageName != null);
		checkArgument(mAppCertificate != null);
		return new AppInstallMetadata(this);
		}
		}
		}