b4a33cba39
ActiveAndroid is not actively maintained anymore and contains code related to that Content Providers that makes the application crash on Android Oreo.
111 lines
3.4 KiB
Java
111 lines
3.4 KiB
Java
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package com.activeandroid.util;
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/*
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* Copyright (C) 2014 Markus Pfeiffer
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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 java.io.BufferedInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.List;
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public class SqlParser {
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public final static int STATE_NONE = 0;
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public final static int STATE_STRING = 1;
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public final static int STATE_COMMENT = 2;
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public final static int STATE_COMMENT_BLOCK = 3;
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public static List<String> parse(final InputStream stream) throws IOException {
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final BufferedInputStream buffer = new BufferedInputStream(stream);
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final List<String> commands = new ArrayList<String>();
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final StringBuffer sb = new StringBuffer();
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try {
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final Tokenizer tokenizer = new Tokenizer(buffer);
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int state = STATE_NONE;
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while (tokenizer.hasNext()) {
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final char c = (char) tokenizer.next();
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if (state == STATE_COMMENT_BLOCK) {
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if (tokenizer.skip("*/")) {
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state = STATE_NONE;
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}
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continue;
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} else if (state == STATE_COMMENT) {
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if (isNewLine(c)) {
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state = STATE_NONE;
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}
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continue;
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} else if (state == STATE_NONE && tokenizer.skip("/*")) {
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state = STATE_COMMENT_BLOCK;
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continue;
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} else if (state == STATE_NONE && tokenizer.skip("--")) {
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state = STATE_COMMENT;
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continue;
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} else if (state == STATE_NONE && c == ';') {
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final String command = sb.toString().trim();
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commands.add(command);
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sb.setLength(0);
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continue;
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} else if (state == STATE_NONE && c == '\'') {
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state = STATE_STRING;
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} else if (state == STATE_STRING && c == '\'') {
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state = STATE_NONE;
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}
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if (state == STATE_NONE || state == STATE_STRING) {
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if (state == STATE_NONE && isWhitespace(c)) {
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if (sb.length() > 0 && sb.charAt(sb.length() - 1) != ' ') {
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sb.append(' ');
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}
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} else {
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sb.append(c);
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}
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}
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}
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} finally {
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IOUtils.closeQuietly(buffer);
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}
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if (sb.length() > 0) {
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commands.add(sb.toString().trim());
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}
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return commands;
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}
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private static boolean isNewLine(final char c) {
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return c == '\r' || c == '\n';
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}
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private static boolean isWhitespace(final char c) {
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return c == '\r' || c == '\n' || c == '\t' || c == ' ';
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}
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}
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