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 org.apache.commons.beanutils.PropertyUtils; | |
import org.apache.commons.codec.binary.Base64; | |
import org.apache.commons.digester.Rule; | |
import org.apache.ddlutils.io.converters.SqlTypeConverter; | |
import org.apache.ddlutils.model.Column; | |
import org.xml.sax.Attributes; | |
/** | |
* A digester rule for setting a bean property that corresponds to a column | |
* with the value derived from a sub element. | |
* | |
* @version $Revision: 289996 $ | |
*/ | |
public class SetColumnPropertyFromSubElementRule extends Rule | |
{ | |
/** The column that this rule shall set. */ | |
private Column _column; | |
/** The converter for generating the property value from a string. */ | |
private SqlTypeConverter _converter; | |
/** Whether the element's content uses Base64. */ | |
private boolean _usesBase64 = false; | |
/** | |
* Creates a new creation rule that sets the property corresponding to the given column. | |
* | |
* @param column The column that this rule shall set | |
* @param converter The converter to be used for this column | |
*/ | |
public SetColumnPropertyFromSubElementRule(Column column, SqlTypeConverter converter) | |
{ | |
_column = column; | |
_converter = converter; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public void begin(Attributes attributes) throws Exception | |
{ | |
for (int idx = 0; idx < attributes.getLength(); idx++) | |
{ | |
String attrName = attributes.getLocalName(idx); | |
if ("".equals(attrName)) | |
{ | |
attrName = attributes.getQName(idx); | |
} | |
if (DatabaseIO.BASE64_ATTR_NAME.equals(attrName) && | |
"true".equalsIgnoreCase(attributes.getValue(idx))) | |
{ | |
_usesBase64 = true; | |
break; | |
} | |
} | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public void end() throws Exception | |
{ | |
_usesBase64 = false; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public void body(String text) throws Exception | |
{ | |
String attrValue = text.trim(); | |
if (_usesBase64 && (attrValue != null)) | |
{ | |
attrValue = new String(Base64.decodeBase64(attrValue.getBytes())); | |
} | |
Object propValue = (_converter != null ? _converter.convertFromString(attrValue, _column.getTypeCode()) : attrValue); | |
if (digester.getLogger().isDebugEnabled()) | |
{ | |
digester.getLogger().debug("[SetColumnPropertyFromSubElementRule]{" + digester.getMatch() + | |
"} Setting property '" + _column.getName() + "' to '" + propValue + "'"); | |
} | |
PropertyUtils.setProperty(digester.peek(), _column.getName(), propValue); | |
} | |
} |