| package org.apache.ddlutils.io; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.apache.ddlutils.model.Table; |
| |
| /** |
| * Base interface for different strategies to write the XML for a data bean for a specific table. |
| */ |
| public class TableXmlWriter extends ModelXmlWriter |
| { |
| private static final int AS_TAG_NAME = 0; |
| private static final int AS_ATTRIBUTE = 1; |
| private static final int AS_SUB_TAG = 2; |
| |
| private final String tableName; |
| private final int formattingMethod; |
| private final boolean base64Encoded; |
| |
| public TableXmlWriter(Table table) |
| { |
| if (XMLUtils.hasIllegalXMLCharacters(table.getName())) |
| { |
| tableName = XMLUtils.base64Encode(table.getName()); |
| formattingMethod = AS_SUB_TAG; |
| base64Encoded = true; |
| } |
| else |
| { |
| tableName = table.getName(); |
| base64Encoded = false; |
| if (tableName.length() > XMLUtils.MAX_NAME_LENGTH) |
| { |
| formattingMethod = AS_SUB_TAG; |
| } |
| else if ("table".equals(tableName) || !XMLUtils.isWellFormedXMLName(tableName)) |
| { |
| formattingMethod = AS_ATTRIBUTE; |
| } |
| else |
| { |
| formattingMethod = AS_TAG_NAME; |
| } |
| } |
| } |
| |
| /** |
| * Write the table data to XML to the given writer. |
| * |
| * @param columnXmlWriters A list of column xml writers for writing out the bean's values to XML |
| * @param writer The writer to write to |
| */ |
| public void write(List columnXmlWriters, DataWriter writer) |
| { |
| writer.indentIfPrettyPrinting(1); |
| if (formattingMethod == AS_TAG_NAME) |
| { |
| writer.writeElementStart(null, tableName); |
| } |
| else |
| { |
| writer.writeElementStart(null, "table"); |
| } |
| if (formattingMethod == AS_ATTRIBUTE) |
| { |
| writer.writeAttribute(null, "table-name", tableName); |
| } |
| for (Iterator it = columnXmlWriters.iterator(); it.hasNext();) |
| { |
| ((ColumnXmlWriter)it.next()).writeAttribute(writer); |
| } |
| |
| boolean hasSubTags = false; |
| |
| if (formattingMethod == AS_SUB_TAG) |
| { |
| writer.printlnIfPrettyPrinting(); |
| writer.indentIfPrettyPrinting(2); |
| writer.writeElementStart(null, "table-name"); |
| writeText(writer, tableName, base64Encoded); |
| writer.writeElementEnd(); |
| hasSubTags = true; |
| } |
| for (Iterator it = columnXmlWriters.iterator(); it.hasNext();) |
| { |
| hasSubTags = ((ColumnXmlWriter)it.next()).writeSubElement(writer) || hasSubTags; |
| } |
| if (hasSubTags) |
| { |
| writer.printlnIfPrettyPrinting(); |
| writer.indentIfPrettyPrinting(1); |
| } |
| writer.writeElementEnd(); |
| writer.printlnIfPrettyPrinting(); |
| } |
| } |