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HSQLDB example source code file (RowInputTextQuoted.java)
The HSQLDB RowInputTextQuoted.java source code/* Copyright (c) 2001-2008, The HSQL Development Group * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the HSQL Development Group nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.hsqldb.rowio; import java.io.IOException; import org.hsqldb.Trace; /** * Fields in the source file need not be quoted. Methods in this class unquote * the fields if they are quoted and handle quote character doubling in this * case. * * @author sqlbob@users (RMP) * @version 1.7.2 * @since 1.7.0 */ public class RowInputTextQuoted extends RowInputText { private static final int NORMAL_FIELD = 0; private static final int NEED_END_QUOTE = 1; private static final int FOUND_QUOTE = 2; private char[] qtext; public RowInputTextQuoted(String fieldSep, String varSep, String longvarSep, boolean allQuoted) { super(fieldSep, varSep, longvarSep, allQuoted); } public void setSource(String text, int pos, int byteSize) { super.setSource(text, pos, byteSize); qtext = text.toCharArray(); } protected String getField(String sep, int sepLen, boolean isEnd) throws IOException { //fredt - now the only supported behaviour is emptyIsNull String s = null; if (next >= qtext.length || qtext[next] != '\"') { return (super.getField(sep, sepLen, isEnd)); } try { field++; StringBuffer ret = new StringBuffer(); boolean done = false; int state = NORMAL_FIELD; int end = -1; if (!isEnd) { end = text.indexOf(sep, next); } for (; next < qtext.length; next++) { switch (state) { case NORMAL_FIELD : default : if (next == end) { next += sepLen; done = true; } else if (qtext[next] == '\"') { //-- Beginning of field state = NEED_END_QUOTE; } else { ret.append(qtext[next]); } break; case NEED_END_QUOTE : if (qtext[next] == '\"') { state = FOUND_QUOTE; } else { ret.append(qtext[next]); } break; case FOUND_QUOTE : if (qtext[next] == '\"') { //-- Escaped quote ret.append(qtext[next]); state = NEED_END_QUOTE; } else { next += sepLen - 1; state = NORMAL_FIELD; if (!isEnd) { next++; done = true; } } break; } if (done) { break; } } s = ret.toString(); } catch (Exception e) { throw new IOException( Trace.getMessage( Trace.QuotedTextDatabaseRowInput_getField2, true, new Object[] { new Integer(field), e.toString() })); } return s; } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB RowInputTextQuoted.java source code file: |
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