Merge "Remove further unused code from services/core/java/com/android/server/integrity/parser" into main am: d7e0f2f812
Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3324554
Change-Id: If01490977c6799c5402db714f7365928703aa417
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/services/core/java/com/android/server/integrity/parser/LimitInputStream.java b/services/core/java/com/android/server/integrity/parser/LimitInputStream.java
deleted file mode 100644
index a91bbb7..0000000
--- a/services/core/java/com/android/server/integrity/parser/LimitInputStream.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2020 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.server.integrity.parser;
-
-import java.io.FilterInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-/** An {@link InputStream} that basically truncates another {@link InputStream} */
-public class LimitInputStream extends FilterInputStream {
- private int mReadBytes;
- private final int mLimit;
-
- public LimitInputStream(InputStream in, int limit) {
- super(in);
- if (limit < 0) {
- throw new IllegalArgumentException("limit " + limit + " cannot be negative");
- }
- mReadBytes = 0;
- mLimit = limit;
- }
-
- @Override
- public int available() throws IOException {
- return Math.min(super.available(), mLimit - mReadBytes);
- }
-
- @Override
- public int read() throws IOException {
- if (mReadBytes == mLimit) {
- return -1;
- }
- mReadBytes++;
- return super.read();
- }
-
- @Override
- public int read(byte[] b) throws IOException {
- return read(b, 0, b.length);
- }
-
- @Override
- public int read(byte[] b, int off, int len) throws IOException {
- if (len <= 0) {
- return 0;
- }
- int available = available();
- if (available <= 0) {
- return -1;
- }
- int result = super.read(b, off, Math.min(len, available));
- mReadBytes += result;
- return result;
- }
-
- @Override
- public long skip(long n) throws IOException {
- if (n <= 0) {
- return 0;
- }
- int available = available();
- if (available <= 0) {
- return 0;
- }
- int bytesToSkip = (int) Math.min(available, n);
- long bytesSkipped = super.skip(bytesToSkip);
- mReadBytes += (int) bytesSkipped;
- return bytesSkipped;
- }
-}
diff --git a/services/core/java/com/android/server/integrity/parser/RandomAccessInputStream.java b/services/core/java/com/android/server/integrity/parser/RandomAccessInputStream.java
deleted file mode 100644
index 206e6a1..0000000
--- a/services/core/java/com/android/server/integrity/parser/RandomAccessInputStream.java
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2020 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.server.integrity.parser;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-/** A wrapper around {@link RandomAccessObject} to turn it into a {@link InputStream}. */
-public class RandomAccessInputStream extends InputStream {
-
- private final RandomAccessObject mRandomAccessObject;
-
- private int mPosition;
-
- public RandomAccessInputStream(RandomAccessObject object) throws IOException {
- mRandomAccessObject = object;
- mPosition = 0;
- }
-
- /** Returns the position of the file pointer. */
- public int getPosition() {
- return mPosition;
- }
-
- /** See {@link RandomAccessObject#seek(int)} */
- public void seek(int position) throws IOException {
- mRandomAccessObject.seek(position);
- mPosition = position;
- }
-
- @Override
- public int available() throws IOException {
- return mRandomAccessObject.length() - mPosition;
- }
-
- @Override
- public void close() throws IOException {
- mRandomAccessObject.close();
- }
-
- @Override
- public int read() throws IOException {
- if (available() <= 0) {
- return -1;
- }
- mPosition++;
- return mRandomAccessObject.read();
- }
-
- @Override
- public int read(byte[] b) throws IOException {
- return read(b, 0, b.length);
- }
-
- @Override
- public int read(byte[] b, int off, int len) throws IOException {
- if (len <= 0) {
- return 0;
- }
- int available = available();
- if (available <= 0) {
- return -1;
- }
- int result = mRandomAccessObject.read(b, off, Math.min(len, available));
- mPosition += result;
- return result;
- }
-
- @Override
- public long skip(long n) throws IOException {
- if (n <= 0) {
- return 0;
- }
- int available = available();
- if (available <= 0) {
- return 0;
- }
- int skipAmount = (int) Math.min(available, n);
- mPosition += skipAmount;
- mRandomAccessObject.seek(mPosition);
- return skipAmount;
- }
-}
diff --git a/services/core/java/com/android/server/integrity/parser/RandomAccessObject.java b/services/core/java/com/android/server/integrity/parser/RandomAccessObject.java
deleted file mode 100644
index d9b2e38..0000000
--- a/services/core/java/com/android/server/integrity/parser/RandomAccessObject.java
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2020 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.server.integrity.parser;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.RandomAccessFile;
-import java.nio.ByteBuffer;
-
-/** An interface for random access objects like RandomAccessFile or byte arrays. */
-public abstract class RandomAccessObject {
-
- /** See {@link RandomAccessFile#seek(long)}. */
- public abstract void seek(int position) throws IOException;
-
- /** See {@link RandomAccessFile#read()}. */
- public abstract int read() throws IOException;
-
- /** See {@link RandomAccessFile#read(byte[], int, int)}. */
- public abstract int read(byte[] bytes, int off, int len) throws IOException;
-
- /** See {@link RandomAccessFile#close()}. */
- public abstract void close() throws IOException;
-
- /** See {@link java.io.RandomAccessFile#length()}. */
- public abstract int length();
-
- /** Static constructor from a file. */
- public static RandomAccessObject ofFile(File file) throws IOException {
- return new RandomAccessFileObject(file);
- }
-
- /** Static constructor from a byte array. */
- public static RandomAccessObject ofBytes(byte[] bytes) {
- return new RandomAccessByteArrayObject(bytes);
- }
-
- private static class RandomAccessFileObject extends RandomAccessObject {
- private final RandomAccessFile mRandomAccessFile;
- // We cache the length since File.length() invokes file IO.
- private final int mLength;
-
- RandomAccessFileObject(File file) throws IOException {
- long length = file.length();
- if (length > Integer.MAX_VALUE) {
- throw new IOException("Unsupported file size (too big) " + length);
- }
-
- mRandomAccessFile = new RandomAccessFile(file, /* mode= */ "r");
- mLength = (int) length;
- }
-
- @Override
- public void seek(int position) throws IOException {
- mRandomAccessFile.seek(position);
- }
-
- @Override
- public int read() throws IOException {
- return mRandomAccessFile.read();
- }
-
- @Override
- public int read(byte[] bytes, int off, int len) throws IOException {
- return mRandomAccessFile.read(bytes, off, len);
- }
-
- @Override
- public void close() throws IOException {
- mRandomAccessFile.close();
- }
-
- @Override
- public int length() {
- return mLength;
- }
- }
-
- private static class RandomAccessByteArrayObject extends RandomAccessObject {
-
- private final ByteBuffer mBytes;
-
- RandomAccessByteArrayObject(byte[] bytes) {
- mBytes = ByteBuffer.wrap(bytes);
- }
-
- @Override
- public void seek(int position) throws IOException {
- mBytes.position(position);
- }
-
- @Override
- public int read() throws IOException {
- if (!mBytes.hasRemaining()) {
- return -1;
- }
-
- return mBytes.get() & 0xFF;
- }
-
- @Override
- public int read(byte[] bytes, int off, int len) throws IOException {
- int bytesToCopy = Math.min(len, mBytes.remaining());
- if (bytesToCopy <= 0) {
- return 0;
- }
- mBytes.get(bytes, off, len);
- return bytesToCopy;
- }
-
- @Override
- public void close() throws IOException {}
-
- @Override
- public int length() {
- return mBytes.capacity();
- }
- }
-}