Bug 1624675 - Remove unused org.mozilla.gecko.sqlite r=snorp

Differential Revision: https://phabricator.services.mozilla.com/D68441

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Agi Sferro 2020-03-27 22:03:59 +00:00
Родитель bf487f84b3
Коммит 0e8f4a8961
2 изменённых файлов: 0 добавлений и 400 удалений

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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.sqlite;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
/*
* Helper class to make the ByteBuffers returned by SQLite BLOB
* easier to use.
*/
public class ByteBufferInputStream extends InputStream {
private final ByteBuffer mByteBuffer;
public ByteBufferInputStream(final ByteBuffer aByteBuffer) {
mByteBuffer = aByteBuffer;
}
@Override
public synchronized int read() throws IOException {
if (!mByteBuffer.hasRemaining()) {
return -1;
}
return mByteBuffer.get();
}
@Override
public synchronized int read(final byte[] aBytes, final int aOffset, final int aLen)
throws IOException {
int toRead = Math.min(aLen, mByteBuffer.remaining());
mByteBuffer.get(aBytes, aOffset, toRead);
return toRead;
}
}

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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
/*
* Copyright (C) 2007 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 org.mozilla.gecko.sqlite;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import org.mozilla.gecko.annotation.JNITarget;
import android.database.AbstractCursor;
import android.database.CursorIndexOutOfBoundsException;
import android.util.Log;
/**
* A mutable cursor implementation backed by an array of {@code Object}s. Use
* {@link #newRow()} to add rows. Automatically expands internal capacity
* as needed.
*
* This class provides one missing feature from Android's MatrixCursor:
* the implementation of getBlob that was inadvertently omitted from API 9 (and
* perhaps later; it's present in 14).
*
* MatrixCursor is all private, so we entirely duplicate it here.
*/
public class MatrixBlobCursor extends AbstractCursor {
private static final String LOGTAG = "GeckoMatrixCursor";
private final String[] mColumnNames;
private final int mColumnCount;
private int mRowCount;
private Throwable mAllocationStack;
Object[] mData;
/**
* Constructs a new cursor with the given initial capacity.
*
* @param columnNames names of the columns, the ordering of which
* determines column ordering elsewhere in this cursor
* @param initialCapacity in rows
*/
@JNITarget
public MatrixBlobCursor(final String[] columnNames, final int initialCapacity) {
mColumnNames = columnNames;
mColumnCount = columnNames.length;
int capacity = initialCapacity;
if (capacity < 1) {
capacity = 1;
}
mData = new Object[mColumnCount * capacity];
mAllocationStack = new Throwable("allocationStack");
}
/**
* Constructs a new cursor.
*
* @param columnNames names of the columns, the ordering of which
* determines column ordering elsewhere in this cursor
*/
@JNITarget
public MatrixBlobCursor(final String[] columnNames) {
this(columnNames, 16);
}
/**
* Closes the Cursor, releasing all of its resources.
*/
public void close() {
mAllocationStack = null;
mData = null;
super.close();
}
/**
* Gets value at the given column for the current row.
*/
protected Object get(final int column) {
if (column < 0 || column >= mColumnCount) {
throw new CursorIndexOutOfBoundsException("Requested column: "
+ column + ", # of columns: " + mColumnCount);
}
if (mPos < 0) {
throw new CursorIndexOutOfBoundsException("Before first row.");
}
if (mPos >= mRowCount) {
throw new CursorIndexOutOfBoundsException("After last row.");
}
return mData[mPos * mColumnCount + column];
}
/**
* Adds a new row to the end and returns a builder for that row. Not safe
* for concurrent use.
*
* @return builder which can be used to set the column values for the new
* row
*/
public RowBuilder newRow() {
mRowCount++;
int endIndex = mRowCount * mColumnCount;
ensureCapacity(endIndex);
int start = endIndex - mColumnCount;
return new RowBuilder(start, endIndex);
}
/**
* Adds a new row to the end with the given column values. Not safe
* for concurrent use.
*
* @throws IllegalArgumentException if {@code columnValues.length !=
* columnNames.length}
* @param columnValues in the same order as the the column names specified
* at cursor construction time
*/
@JNITarget
public void addRow(final Object[] columnValues) {
if (columnValues.length != mColumnCount) {
throw new IllegalArgumentException("columnNames.length = "
+ mColumnCount + ", columnValues.length = "
+ columnValues.length);
}
int start = mRowCount++ * mColumnCount;
ensureCapacity(start + mColumnCount);
System.arraycopy(columnValues, 0, mData, start, mColumnCount);
}
/**
* Adds a new row to the end with the given column values. Not safe
* for concurrent use.
*
* @throws IllegalArgumentException if {@code columnValues.size() !=
* columnNames.length}
* @param columnValues in the same order as the the column names specified
* at cursor construction time
*/
@JNITarget
public void addRow(final Iterable<?> columnValues) {
final int start = mRowCount * mColumnCount;
if (columnValues instanceof ArrayList<?>) {
addRow((ArrayList<?>) columnValues, start);
return;
}
final int end = start + mColumnCount;
int current = start;
ensureCapacity(end);
final Object[] localData = mData;
for (Object columnValue : columnValues) {
if (current == end) {
// TODO: null out row?
throw new IllegalArgumentException(
"columnValues.size() > columnNames.length");
}
localData[current++] = columnValue;
}
if (current != end) {
// TODO: null out row?
throw new IllegalArgumentException(
"columnValues.size() < columnNames.length");
}
// Increase row count here in case we encounter an exception.
mRowCount++;
}
/** Optimization for {@link ArrayList}. */
@JNITarget
private void addRow(final ArrayList<?> columnValues, final int start) {
final int size = columnValues.size();
if (size != mColumnCount) {
throw new IllegalArgumentException("columnNames.length = "
+ mColumnCount + ", columnValues.size() = " + size);
}
final int end = start + mColumnCount;
ensureCapacity(end);
// Take a reference just in case someone calls ensureCapacity
// and `data` gets replaced by a new array!
final Object[] localData = mData;
for (int i = 0; i < size; i++) {
localData[start + i] = columnValues.get(i);
}
mRowCount++;
}
/**
* Ensures that this cursor has enough capacity. If it needs to allocate
* a new array, the existing capacity will be at least doubled.
*/
private void ensureCapacity(final int size) {
if (size <= mData.length) {
return;
}
final Object[] oldData = mData;
mData = new Object[Math.max(size, mData.length * 2)];
System.arraycopy(oldData, 0, mData, 0, oldData.length);
}
/**
* Builds a row, starting from the left-most column and adding one column
* value at a time. Follows the same ordering as the column names specified
* at cursor construction time.
*
* Not thread-safe.
*/
public class RowBuilder {
private int mIndex;
private final int mEndIndex;
RowBuilder(final int index, final int endIndex) {
this.mIndex = index;
this.mEndIndex = endIndex;
}
/**
* Sets the next column value in this row.
*
* @throws CursorIndexOutOfBoundsException if you try to add too many
* values
* @return this builder to support chaining
*/
public RowBuilder add(final Object columnValue) {
if (mIndex == mEndIndex) {
throw new CursorIndexOutOfBoundsException("No more columns left.");
}
mData[mIndex++] = columnValue;
return this;
}
}
/**
* Not thread safe.
*/
public void set(final int column, final Object value) {
if (column < 0 || column >= mColumnCount) {
throw new CursorIndexOutOfBoundsException("Requested column: "
+ column + ", # of columns: " + mColumnCount);
}
if (mPos < 0) {
throw new CursorIndexOutOfBoundsException("Before first row.");
}
if (mPos >= mRowCount) {
throw new CursorIndexOutOfBoundsException("After last row.");
}
mData[mPos * mColumnCount + column] = value;
}
// AbstractCursor implementation.
@Override
public int getCount() {
return mRowCount;
}
@Override
public String[] getColumnNames() {
return mColumnNames;
}
@Override
public String getString(final int column) {
Object value = get(column);
if (value == null) return null;
return value.toString();
}
@Override
public short getShort(final int column) {
final Object value = get(column);
if (value == null) return 0;
if (value instanceof Number) return ((Number) value).shortValue();
return Short.parseShort(value.toString());
}
@Override
public int getInt(final int column) {
Object value = get(column);
if (value == null) return 0;
if (value instanceof Number) return ((Number) value).intValue();
return Integer.parseInt(value.toString());
}
@Override
public long getLong(final int column) {
Object value = get(column);
if (value == null) return 0;
if (value instanceof Number) return ((Number) value).longValue();
return Long.parseLong(value.toString());
}
@Override
public float getFloat(final int column) {
Object value = get(column);
if (value == null) return 0.0f;
if (value instanceof Number) return ((Number) value).floatValue();
return Float.parseFloat(value.toString());
}
@Override
public double getDouble(final int column) {
Object value = get(column);
if (value == null) return 0.0d;
if (value instanceof Number) return ((Number) value).doubleValue();
return Double.parseDouble(value.toString());
}
@Override
public byte[] getBlob(final int column) {
Object value = get(column);
if (value == null) return null;
if (value instanceof byte[]) {
return (byte[]) value;
}
if (value instanceof ByteBuffer) {
final ByteBuffer bytes = (ByteBuffer) value;
byte[] byteArray = new byte[bytes.remaining()];
bytes.get(byteArray);
return byteArray;
}
throw new UnsupportedOperationException("BLOB Object not of known type");
}
@Override
public boolean isNull(final int column) {
return get(column) == null;
}
@Override
protected void finalize() {
if (!isClosed()) {
Log.e(LOGTAG, "Cursor finalized without being closed", mAllocationStack);
}
super.finalize();
}
}