170 lines
5.0 KiB
Java
170 lines
5.0 KiB
Java
package org.thoughtcrime.securesms.contacts;
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/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import android.database.AbstractCursor;
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import android.database.CursorWindow;
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import java.lang.System;
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import java.util.ArrayList;
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/**
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* A convenience class that presents a two-dimensional ArrayList
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* as a Cursor.
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*/
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public class ArrayListCursor extends AbstractCursor {
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private String[] mColumnNames;
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private ArrayList<Object>[] mRows;
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@SuppressWarnings({"unchecked"})
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public ArrayListCursor(String[] columnNames, ArrayList<ArrayList> rows) {
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int colCount = columnNames.length;
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boolean foundID = false;
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// Add an _id column if not in columnNames
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for (int i = 0; i < colCount; ++i) {
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if (columnNames[i].compareToIgnoreCase("_id") == 0) {
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mColumnNames = columnNames;
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foundID = true;
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break;
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}
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}
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if (!foundID) {
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mColumnNames = new String[colCount + 1];
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System.arraycopy(columnNames, 0, mColumnNames, 0, columnNames.length);
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mColumnNames[colCount] = "_id";
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}
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int rowCount = rows.size();
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mRows = new ArrayList[rowCount];
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for (int i = 0; i < rowCount; ++i) {
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mRows[i] = rows.get(i);
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if (!foundID) {
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mRows[i].add(i);
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}
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}
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}
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@Override
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public void fillWindow(int position, CursorWindow window) {
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if (position < 0 || position > getCount()) {
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return;
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}
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window.acquireReference();
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try {
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int oldpos = mPos;
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mPos = position - 1;
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window.clear();
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window.setStartPosition(position);
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int columnNum = getColumnCount();
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window.setNumColumns(columnNum);
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while (moveToNext() && window.allocRow()) {
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for (int i = 0; i < columnNum; i++) {
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final Object data = mRows[mPos].get(i);
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if (data != null) {
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if (data instanceof byte[]) {
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byte[] field = (byte[]) data;
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if (!window.putBlob(field, mPos, i)) {
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window.freeLastRow();
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break;
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}
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} else {
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String field = data.toString();
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if (!window.putString(field, mPos, i)) {
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window.freeLastRow();
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break;
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}
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}
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} else {
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if (!window.putNull(mPos, i)) {
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window.freeLastRow();
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break;
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}
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}
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}
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}
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mPos = oldpos;
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} catch (IllegalStateException e){
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// simply ignore it
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} finally {
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window.releaseReference();
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}
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}
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@Override
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public int getCount() {
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return mRows.length;
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}
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public boolean deleteRow() {
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return false;
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}
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@Override
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public String[] getColumnNames() {
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return mColumnNames;
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}
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@Override
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public byte[] getBlob(int columnIndex) {
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return (byte[]) mRows[mPos].get(columnIndex);
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}
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@Override
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public String getString(int columnIndex) {
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Object cell = mRows[mPos].get(columnIndex);
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return (cell == null) ? null : cell.toString();
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}
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@Override
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public short getShort(int columnIndex) {
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Number num = (Number) mRows[mPos].get(columnIndex);
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return num.shortValue();
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}
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@Override
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public int getInt(int columnIndex) {
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Number num = (Number) mRows[mPos].get(columnIndex);
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return num.intValue();
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}
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@Override
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public long getLong(int columnIndex) {
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Number num = (Number) mRows[mPos].get(columnIndex);
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return num.longValue();
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}
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@Override
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public float getFloat(int columnIndex) {
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Number num = (Number) mRows[mPos].get(columnIndex);
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return num.floatValue();
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}
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@Override
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public double getDouble(int columnIndex) {
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Number num = (Number) mRows[mPos].get(columnIndex);
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return num.doubleValue();
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}
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@Override
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public boolean isNull(int columnIndex) {
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return mRows[mPos].get(columnIndex) == null;
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}
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}
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