Add a SetSchema API and builders.

They directly construct the proto in frameworks.jar.

The API is not yet implemented.

Test: atest CtsAppSearchTestCases
Bug: 145635424
Change-Id: I4f708fa845a87f171ace437788d2c45161fc38ff
diff --git a/Android.bp b/Android.bp
index 4e2b156..a7ac094 100644
--- a/Android.bp
+++ b/Android.bp
@@ -509,7 +509,8 @@
     static_libs: [
         "exoplayer2-core",
         "android.hardware.wifi-V1.0-java-constants",
-     ],
+    ],
+    libs: ["icing-java-proto-lite"],
     apex_available: ["//apex_available:platform"],
 }
 
diff --git a/apex/appsearch/framework/Android.bp b/apex/appsearch/framework/Android.bp
index 1f30dda..2e88115 100644
--- a/apex/appsearch/framework/Android.bp
+++ b/apex/appsearch/framework/Android.bp
@@ -13,29 +13,32 @@
 // limitations under the License.
 
 filegroup {
-  name: "framework-appsearch-sources",
-  srcs: [
-    "java/**/*.java",
-    "java/**/*.aidl",
-  ],
-  path: "java",
+    name: "framework-appsearch-sources",
+    srcs: [
+        "java/**/*.java",
+        "java/**/*.aidl",
+    ],
+    path: "java",
 }
 
 java_library {
-  name: "framework-appsearch",
-  installable: true,
-  sdk_version: "core_platform", // TODO(b/146218515) should be core_current
-  srcs: [":framework-appsearch-sources"],
-  hostdex: true, // for hiddenapi check
-  libs: [
-    "framework-minus-apex",  // TODO(b/146218515) should be framework-system-stubs
-  ],
-  visibility: [
-      "//frameworks/base/apex/appsearch:__subpackages__",
-      // TODO(b/146218515) remove this when framework is built with the stub of appsearch
-      "//frameworks/base",
-  ],
-  apex_available: ["com.android.appsearch"],
+    name: "framework-appsearch",
+    installable: true,
+    sdk_version: "core_platform", // TODO(b/146218515) should be core_current
+    srcs: [":framework-appsearch-sources"],
+    hostdex: true, // for hiddenapi check
+    libs: [
+        "framework-minus-apex",  // TODO(b/146218515) should be framework-system-stubs
+    ],
+    static_libs: [
+        "icing-java-proto-lite",
+    ],
+    visibility: [
+        "//frameworks/base/apex/appsearch:__subpackages__",
+        // TODO(b/146218515) remove this when framework is built with the stub of appsearch
+        "//frameworks/base",
+    ],
+    apex_available: ["com.android.appsearch"],
 }
 
 metalava_appsearch_docs_args =
diff --git a/apex/appsearch/framework/java/android/app/appsearch/AppSearchManager.java b/apex/appsearch/framework/java/android/app/appsearch/AppSearchManager.java
index a8ee35c..58bb605 100644
--- a/apex/appsearch/framework/java/android/app/appsearch/AppSearchManager.java
+++ b/apex/appsearch/framework/java/android/app/appsearch/AppSearchManager.java
@@ -15,21 +15,84 @@
  */
 package android.app.appsearch;
 
+import android.annotation.CallbackExecutor;
+import android.annotation.NonNull;
 import android.annotation.SystemService;
 import android.content.Context;
+import android.os.RemoteException;
+
+import com.android.internal.infra.AndroidFuture;
+
+import com.google.android.icing.proto.SchemaProto;
+
+import java.util.concurrent.Executor;
+import java.util.function.Consumer;
 
 /**
- * TODO(b/142567528): add comments when implement this class
+ * This class provides access to the centralized AppSearch index maintained by the system.
+ *
+ * <p>Apps can index structured text documents with AppSearch, which can then be retrieved through
+ * the query API.
+ *
  * @hide
  */
 @SystemService(Context.APP_SEARCH_SERVICE)
 public class AppSearchManager {
     private final IAppSearchManager mService;
+
+    /** @hide */
+    public AppSearchManager(@NonNull IAppSearchManager service) {
+        mService = service;
+    }
+
     /**
-     * TODO(b/142567528): add comments when implement this class
+     * Sets the schema being used by documents provided to the #put method.
+     *
+     * <p>This operation is performed asynchronously. On success, the provided callback will be
+     * called with {@code null}. On failure, the provided callback will be called with a
+     * {@link Throwable} describing the failure.
+     *
+     * <p>It is a no-op to set the same schema as has been previously set; this is handled
+     * efficiently.
+     *
+     * <p>AppSearch automatically handles the following types of schema changes:
+     * <ul>
+     *     <li>Addition of new types (No changes to storage or index)
+     *     <li>Removal of an existing type (All documents of the removed type are deleted)
+     *     <li>Addition of new 'optional' property to a type (No changes to storage or index)
+     *     <li>Removal of existing property of any cardinality (All documents reindexed)
+     * </ul>
+     *
+     * <p>This method will return an error when attempting to make the following types of changes:
+     * <ul>
+     *     <li>Changing the type of an existing property
+     *     <li>Adding a 'required' property
+     * </ul>
+     *
+     * @param schema The schema config for this app.
+     * @param executor Executor on which to invoke the callback.
+     * @param callback Callback to receive errors resulting from setting the schema. If the
+     *                 operation succeeds, the callback will be invoked with {@code null}.
+     *
      * @hide
      */
-    public AppSearchManager(IAppSearchManager service) {
-        mService = service;
+    // TODO(b/143789408): linkify #put after that API is created
+    // TODO(b/145635424): add a 'force' param to setSchema after the corresponding API is finalized
+    //     in Icing Library
+    // TODO(b/145635424): Update the documentation above once the Schema mutation APIs of Icing
+    //     Library are finalized
+    public void setSchema(
+            @NonNull AppSearchSchema schema,
+            @NonNull @CallbackExecutor Executor executor,
+            @NonNull Consumer<? super Throwable> callback) {
+        SchemaProto schemaProto = schema.getProto();
+        byte[] schemaBytes = schemaProto.toByteArray();
+        AndroidFuture<Void> future = new AndroidFuture<>();
+        try {
+            mService.setSchema(schemaBytes, future);
+        } catch (RemoteException e) {
+            future.completeExceptionally(e);
+        }
+        future.whenCompleteAsync((noop, err) -> callback.accept(err), executor);
     }
 }
diff --git a/apex/appsearch/framework/java/android/app/appsearch/AppSearchSchema.java b/apex/appsearch/framework/java/android/app/appsearch/AppSearchSchema.java
new file mode 100644
index 0000000..b5d903a
--- /dev/null
+++ b/apex/appsearch/framework/java/android/app/appsearch/AppSearchSchema.java
@@ -0,0 +1,423 @@
+/*
+ * Copyright (C) 2019 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 android.app.appsearch;
+
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+
+import com.google.android.icing.proto.PropertyConfigProto;
+import com.google.android.icing.proto.SchemaProto;
+import com.google.android.icing.proto.SchemaTypeConfigProto;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Representation of the AppSearch Schema.
+ *
+ * <p>The schema is the set of document types, properties, and config (like tokenization type)
+ * understood by AppSearch for this app.
+ *
+ * @hide
+ */
+public final class AppSearchSchema {
+    private final SchemaProto mProto;
+
+    private AppSearchSchema(SchemaProto proto) {
+        mProto = proto;
+    }
+
+    /** Creates a new {@link AppSearchSchema.Builder}. */
+    @NonNull
+    public static AppSearchSchema.Builder newBuilder() {
+        return new AppSearchSchema.Builder();
+    }
+
+    /** Creates a new {@link SchemaType.Builder}. */
+    @NonNull
+    public static SchemaType.Builder newSchemaTypeBuilder(@NonNull String typeName) {
+        return new SchemaType.Builder(typeName);
+    }
+
+    /** Creates a new {@link PropertyConfig.Builder}. */
+    @NonNull
+    public static PropertyConfig.Builder newPropertyBuilder(@NonNull String propertyName) {
+        return new PropertyConfig.Builder(propertyName);
+    }
+
+    /** Creates a new {@link IndexingConfig.Builder}. */
+    @NonNull
+    public static IndexingConfig.Builder newIndexingConfigBuilder() {
+        return new IndexingConfig.Builder();
+    }
+
+    /**
+     * Returns the schema proto populated by the {@link AppSearchSchema} builders.
+     * @hide
+     */
+    @NonNull
+    SchemaProto getProto() {
+        return mProto;
+    }
+
+    /** Builder for {@link AppSearchSchema objects}. */
+    public static final class Builder {
+        private final SchemaProto.Builder mProtoBuilder = SchemaProto.newBuilder();
+
+        private Builder() {}
+
+        /** Adds a supported type to this app's AppSearch schema. */
+        @NonNull
+        public AppSearchSchema.Builder addType(@NonNull SchemaType schemaType) {
+            mProtoBuilder.addTypes(schemaType.mProto);
+            return this;
+        }
+
+        /**
+         * Constructs a new {@link AppSearchSchema} from the contents of this builder.
+         *
+         * <p>After calling this method, the builder must no longer be used.
+         */
+        @NonNull
+        public AppSearchSchema build() {
+            return new AppSearchSchema(mProtoBuilder.build());
+        }
+    }
+
+    /**
+     * Represents a type of a document.
+     *
+     * <p>For example, an e-mail message or a music recording could be a schema type.
+     */
+    public static final class SchemaType {
+        private final SchemaTypeConfigProto mProto;
+
+        private SchemaType(SchemaTypeConfigProto proto) {
+            mProto = proto;
+        }
+
+        /** Builder for {@link SchemaType} objects. */
+        public static final class Builder {
+            private final SchemaTypeConfigProto.Builder mProtoBuilder =
+                    SchemaTypeConfigProto.newBuilder();
+
+            private Builder(@NonNull String typeName) {
+                mProtoBuilder.setSchemaType(typeName);
+            }
+
+            /** Adds a property to the given type. */
+            @NonNull
+            public SchemaType.Builder addProperty(@NonNull PropertyConfig propertyConfig) {
+                mProtoBuilder.addProperties(propertyConfig.mProto);
+                return this;
+            }
+
+            /**
+             * Constructs a new {@link SchemaType} from the contents of this builder.
+             *
+             * <p>After calling this method, the builder must no longer be used.
+             */
+            @NonNull
+            public SchemaType build() {
+                return new SchemaType(mProtoBuilder.build());
+            }
+        }
+    }
+
+    /**
+     * Configuration for a single property (field) of a document type.
+     *
+     * <p>For example, an {@code EmailMessage} would be a type and the {@code subject} would be
+     * a property.
+     */
+    public static final class PropertyConfig {
+        /** Physical data-types of the contents of the property. */
+        // NOTE: The integer values of these constants must match the proto enum constants in
+        // com.google.android.icing.proto.PropertyConfigProto.DataType.Code.
+        @IntDef(prefix = {"DATA_TYPE_"}, value = {
+                DATA_TYPE_STRING,
+                DATA_TYPE_INT64,
+                DATA_TYPE_DOUBLE,
+                DATA_TYPE_BOOLEAN,
+                DATA_TYPE_BYTES,
+                DATA_TYPE_DOCUMENT,
+        })
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface DataType {}
+
+        public static final int DATA_TYPE_STRING = 1;
+        public static final int DATA_TYPE_INT64 = 2;
+        public static final int DATA_TYPE_DOUBLE = 3;
+        public static final int DATA_TYPE_BOOLEAN = 4;
+
+        /** Unstructured BLOB. */
+        public static final int DATA_TYPE_BYTES = 5;
+
+        /**
+         * Indicates that the property itself is an Document, making it part a hierarchical
+         * Document schema. Any property using this DataType MUST have a valid
+         * {@code schemaType}.
+         */
+        public static final int DATA_TYPE_DOCUMENT = 6;
+
+        /** The cardinality of the property (whether it is required, optional or repeated). */
+        // NOTE: The integer values of these constants must match the proto enum constants in
+        // com.google.android.icing.proto.PropertyConfigProto.Cardinality.Code.
+        @IntDef(prefix = {"CARDINALITY_"}, value = {
+                CARDINALITY_REPEATED,
+                CARDINALITY_OPTIONAL,
+                CARDINALITY_REQUIRED,
+        })
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface Cardinality {}
+
+        /** Any number of items (including zero) [0...*]. */
+        public static final int CARDINALITY_REPEATED = 1;
+
+        /** Zero or one value [0,1]. */
+        public static final int CARDINALITY_OPTIONAL = 2;
+
+        /** Exactly one value [1]. */
+        public static final int CARDINALITY_REQUIRED = 3;
+
+        private final PropertyConfigProto mProto;
+
+        private PropertyConfig(PropertyConfigProto proto) {
+            mProto = proto;
+        }
+
+        /**
+         * Builder for {@link PropertyConfig}.
+         *
+         * <p>The following properties must be set, or {@link PropertyConfig} construction will
+         * fail:
+         * <ul>
+         *     <li>dataType
+         *     <li>cardinality
+         * </ul>
+         *
+         * <p>In addition, if {@code schemaType} is {@link #DATA_TYPE_DOCUMENT}, {@code schemaType}
+         * is also required.
+         */
+        public static final class Builder {
+            private final PropertyConfigProto.Builder mProtoBuilder =
+                    PropertyConfigProto.newBuilder();
+
+            private Builder(String propertyName) {
+                mProtoBuilder.setPropertyName(propertyName);
+            }
+
+            /**
+             * Type of data the property contains (e.g. string, int, bytes, etc).
+             *
+             * <p>This property must be set.
+             */
+            @NonNull
+            public PropertyConfig.Builder setDataType(@DataType int dataType) {
+                PropertyConfigProto.DataType.Code dataTypeProto =
+                        PropertyConfigProto.DataType.Code.forNumber(dataType);
+                if (dataTypeProto == null) {
+                    throw new IllegalArgumentException("Invalid dataType: " + dataType);
+                }
+                mProtoBuilder.setDataType(dataTypeProto);
+                return this;
+            }
+
+            /**
+             * The logical schema-type of the contents of this property.
+             *
+             * <p>Only required when {@link #setDataType(int)} is set to
+             * {@link #DATA_TYPE_DOCUMENT}. Otherwise, it is ignored.
+             */
+            @NonNull
+            public PropertyConfig.Builder setSchemaType(@NonNull String schemaType) {
+                mProtoBuilder.setSchemaType(schemaType);
+                return this;
+            }
+
+            /**
+             * The cardinality of the property (whether it is optional, required or repeated).
+             *
+             * <p>This property must be set.
+             */
+            @NonNull
+            public PropertyConfig.Builder setCardinality(@Cardinality int cardinality) {
+                PropertyConfigProto.Cardinality.Code cardinalityProto =
+                        PropertyConfigProto.Cardinality.Code.forNumber(cardinality);
+                if (cardinalityProto == null) {
+                    throw new IllegalArgumentException("Invalid cardinality: " + cardinality);
+                }
+                mProtoBuilder.setCardinality(cardinalityProto);
+                return this;
+            }
+
+            /**
+             * Configures how this property should be indexed.
+             *
+             * <p>If this is not supplied, the property will not be indexed at all.
+             */
+            @NonNull
+            public PropertyConfig.Builder setIndexingConfig(
+                    @NonNull IndexingConfig indexingConfig) {
+                mProtoBuilder.setIndexingConfig(indexingConfig.mProto);
+                return this;
+            }
+
+            /**
+             * Constructs a new {@link PropertyConfig} from the contents of this builder.
+             *
+             * <p>After calling this method, the builder must no longer be used.
+             *
+             * @throws IllegalSchemaException If the property is not correctly populated (e.g.
+             *     missing {@code dataType}).
+             */
+            @NonNull
+            public PropertyConfig build() {
+                if (mProtoBuilder.getDataType() == PropertyConfigProto.DataType.Code.UNKNOWN) {
+                    throw new IllegalSchemaException("Missing dataType field");
+                }
+                if (mProtoBuilder.getSchemaType().isEmpty()
+                        && mProtoBuilder.getDataType()
+                                == PropertyConfigProto.DataType.Code.DOCUMENT) {
+                    throw new IllegalSchemaException(
+                            "Missing field: schemaType (required for configs with "
+                                    + "dataType = DOCUMENT)");
+                }
+                if (mProtoBuilder.getCardinality()
+                        == PropertyConfigProto.Cardinality.Code.UNKNOWN) {
+                    throw new IllegalSchemaException("Missing cardinality field");
+                }
+                return new PropertyConfig(mProtoBuilder.build());
+            }
+        }
+    }
+
+    /** Configures how a property should be indexed so that it can be retrieved by queries. */
+    public static final class IndexingConfig {
+        /** Encapsulates the configurations on how AppSearch should query/index these terms. */
+        // NOTE: The integer values of these constants must match the proto enum constants in
+        // com.google.android.icing.proto.TermMatchType.Code.
+        @IntDef(prefix = {"TERM_MATCH_TYPE_"}, value = {
+                TERM_MATCH_TYPE_UNKNOWN,
+                TERM_MATCH_TYPE_EXACT_ONLY,
+                TERM_MATCH_TYPE_PREFIX,
+        })
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface TermMatchType {}
+
+        /**
+         * Content in this property will not be tokenized or indexed.
+         *
+         * <p>Useful if the data type is not made up of terms (e.g.
+         * {@link PropertyConfig#DATA_TYPE_DOCUMENT} or {@link PropertyConfig#DATA_TYPE_BYTES}
+         * type). All the properties inside the nested property won't be indexed regardless of the
+         * value of {@code termMatchType} for the nested properties.
+         */
+        public static final int TERM_MATCH_TYPE_UNKNOWN = 0;
+
+        /**
+         * Content in this property should only be returned for queries matching the exact tokens
+         * appearing in this property.
+         *
+         * <p>Ex. A property with "fool" should NOT match a query for "foo".
+         */
+        public static final int TERM_MATCH_TYPE_EXACT_ONLY = 1;
+
+        /**
+         * Content in this property should be returned for queries that are either exact matches or
+         * query matches of the tokens appearing in this property.
+         *
+         * <p>Ex. A property with "fool" <b>should</b> match a query for "foo".
+         */
+        public static final int TERM_MATCH_TYPE_PREFIX = 2;
+
+        /** Configures how tokens should be extracted from this property. */
+        // NOTE: The integer values of these constants must match the proto enum constants in
+        // com.google.android.icing.proto.IndexingConfig.TokenizerType.Code.
+        @IntDef(prefix = {"TOKENIZER_TYPE_"}, value = {
+                TOKENIZER_TYPE_NONE,
+                TOKENIZER_TYPE_PLAIN,
+        })
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface TokenizerType {}
+
+        /**
+         * It is only valid for tokenizer_type to be 'NONE' if the data type is
+         * {@link PropertyConfig#DATA_TYPE_DOCUMENT}.
+         */
+        public static final int TOKENIZER_TYPE_NONE = 0;
+
+        /** Tokenization for plain text. */
+        public static final int TOKENIZER_TYPE_PLAIN = 1;
+
+        private final com.google.android.icing.proto.IndexingConfig mProto;
+
+        private IndexingConfig(com.google.android.icing.proto.IndexingConfig proto) {
+            mProto = proto;
+        }
+
+        /**
+         * Builder for {@link IndexingConfig} objects.
+         *
+         * <p>You may skip adding an {@link IndexingConfig} for a property, which is equivalent to
+         * an {@link IndexingConfig} having {@code termMatchType} equal to
+         * {@link #TERM_MATCH_TYPE_UNKNOWN}. In this case the property will not be indexed.
+         */
+        public static final class Builder {
+            private final com.google.android.icing.proto.IndexingConfig.Builder mProtoBuilder =
+                    com.google.android.icing.proto.IndexingConfig.newBuilder();
+
+            private Builder() {}
+
+            /** Configures how the content of this property should be matched in the index. */
+            @NonNull
+            public IndexingConfig.Builder setTermMatchType(@TermMatchType int termMatchType) {
+                com.google.android.icing.proto.TermMatchType.Code termMatchTypeProto =
+                        com.google.android.icing.proto.TermMatchType.Code.forNumber(termMatchType);
+                if (termMatchTypeProto == null) {
+                    throw new IllegalArgumentException("Invalid termMatchType: " + termMatchType);
+                }
+                mProtoBuilder.setTermMatchType(termMatchTypeProto);
+                return this;
+            }
+
+            /** Configures how this property should be tokenized (split into words). */
+            @NonNull
+            public IndexingConfig.Builder setTokenizerType(@TokenizerType int tokenizerType) {
+                com.google.android.icing.proto.IndexingConfig.TokenizerType.Code
+                        tokenizerTypeProto =
+                            com.google.android.icing.proto.IndexingConfig
+                                    .TokenizerType.Code.forNumber(tokenizerType);
+                if (tokenizerTypeProto == null) {
+                    throw new IllegalArgumentException("Invalid tokenizerType: " + tokenizerType);
+                }
+                mProtoBuilder.setTokenizerType(tokenizerTypeProto);
+                return this;
+            }
+
+            /**
+             * Constructs a new {@link IndexingConfig} from the contents of this builder.
+             *
+             * <p>After calling this method, the builder must no longer be used.
+             */
+            @NonNull
+            public IndexingConfig build() {
+                return new IndexingConfig(mProtoBuilder.build());
+            }
+        }
+    }
+}
diff --git a/apex/appsearch/framework/java/android/app/appsearch/IAppSearchManager.aidl b/apex/appsearch/framework/java/android/app/appsearch/IAppSearchManager.aidl
index f0f4f51..8085aa8 100644
--- a/apex/appsearch/framework/java/android/app/appsearch/IAppSearchManager.aidl
+++ b/apex/appsearch/framework/java/android/app/appsearch/IAppSearchManager.aidl
@@ -14,6 +14,18 @@
  * limitations under the License.
  */
 package android.app.appsearch;
+
+import com.android.internal.infra.AndroidFuture;
+
 /** {@hide} */
 interface IAppSearchManager {
+    /**
+     * Sets the schema.
+     *
+     * @param schemaProto serialized SchemaProto
+     * @param callback {@link AndroidFuture}&lt;{@link Void}&gt;. Will be completed with
+     *     {@code null} upon successful completion of the setSchema call, or completed exceptionally
+     *     if setSchema fails.
+     */
+    void setSchema(in byte[] schemaProto, in AndroidFuture callback);
 }
diff --git a/apex/appsearch/framework/java/android/app/appsearch/IllegalSchemaException.java b/apex/appsearch/framework/java/android/app/appsearch/IllegalSchemaException.java
new file mode 100644
index 0000000..f9e528c
--- /dev/null
+++ b/apex/appsearch/framework/java/android/app/appsearch/IllegalSchemaException.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 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 android.app.appsearch;
+
+import android.annotation.NonNull;
+
+/**
+ * Indicates that a {@link android.app.appsearch.AppSearchSchema} has logical inconsistencies such
+ * as unpopulated mandatory fields or illegal combinations of parameters.
+ *
+ * @hide
+ */
+public class IllegalSchemaException extends IllegalArgumentException {
+    /**
+     * Constructs a new {@link IllegalSchemaException}.
+     *
+     * @param message A developer-readable description of the issue with the bundle.
+     */
+    public IllegalSchemaException(@NonNull String message) {
+        super(message);
+    }
+}
diff --git a/apex/appsearch/service/Android.bp b/apex/appsearch/service/Android.bp
index 8aed5d0..7327231 100644
--- a/apex/appsearch/service/Android.bp
+++ b/apex/appsearch/service/Android.bp
@@ -12,17 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 java_library {
-  name: "service-appsearch",
-  installable: true,
-  srcs: [
-    "java/**/*.java",
-  ],
-  libs: [
-    "framework",
-    "services.core",
-  ],
-  static_libs: [
-    "icing-java-proto-lite",
-  ],
-  apex_available: [ "com.android.appsearch" ],
+    name: "service-appsearch",
+    installable: true,
+    srcs: ["java/**/*.java"],
+    libs: [
+        "framework",
+        "framework-appsearch",
+        "services.core",
+    ],
+    static_libs: ["icing-java-proto-lite"],
+    apex_available: ["com.android.appsearch"],
 }
diff --git a/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java b/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
index 4d44d9d..96316b3 100644
--- a/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
+++ b/apex/appsearch/service/java/com/android/server/appsearch/AppSearchManagerService.java
@@ -18,8 +18,11 @@
 import android.app.appsearch.IAppSearchManager;
 import android.content.Context;
 
+import com.android.internal.infra.AndroidFuture;
 import com.android.server.SystemService;
 
+import com.google.android.icing.proto.SchemaProto;
+
 /**
  * TODO(b/142567528): add comments when implement this class
  */
@@ -35,5 +38,14 @@
     }
 
     private class Stub extends IAppSearchManager.Stub {
+        @Override
+        public void setSchema(byte[] schemaBytes, AndroidFuture callback) {
+            try {
+                SchemaProto schema = SchemaProto.parseFrom(schemaBytes);
+                throw new UnsupportedOperationException("setSchema not yet implemented: " + schema);
+            } catch (Throwable t) {
+                callback.completeExceptionally(t);
+            }
+        }
     }
 }
diff --git a/apex/appsearch/service/java/com/android/server/appsearch/impl/FakeIcing.java b/apex/appsearch/service/java/com/android/server/appsearch/impl/FakeIcing.java
index 3dbb5cf..02a79a1 100644
--- a/apex/appsearch/service/java/com/android/server/appsearch/impl/FakeIcing.java
+++ b/apex/appsearch/service/java/com/android/server/appsearch/impl/FakeIcing.java
@@ -36,8 +36,6 @@
  * <p>
  * Currently, only queries by single exact term are supported. There is no support for persistence,
  * namespaces, i18n tokenization, or schema.
- *
- * @hide
  */
 public class FakeIcing {
     private final AtomicInteger mNextDocId = new AtomicInteger();