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Cayenne Object Persistence Framework
/*****************************************************************
* 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.
****************************************************************/
package org.apache.cayenne.tools;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.types.Path;
import org.apache.cayenne.gen.AntClassGenerator;
import org.apache.cayenne.gen.ClassGenerator;
import org.apache.cayenne.gen.DefaultClassGenerator;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.map.MapLoader;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.util.Util;
import org.xml.sax.InputSource;
import foundrylogic.vpp.VPPConfig;
/**
* Ant task to perform class generation from data map. This class is an Ant adapter to
* DefaultClassGenerator class.
*
* @author Andrus Adamchik
*/
public class CayenneGenerator extends CayenneTask {
protected String includeEntitiesPattern;
protected String excludeEntitiesPattern;
protected VPPConfig vppConfig;
protected File map;
protected File additionalMaps[];
protected DefaultClassGenerator generator;
public CayenneGenerator() {
generator = createGenerator();
}
/**
* Factory method to create internal class generator. Called from constructor.
*/
protected DefaultClassGenerator createGenerator() {
AntClassGenerator gen = new AntClassGenerator();
gen.setParentTask(this);
return gen;
}
/**
* Executes the task. It will be called by ant framework.
*/
public void execute() throws BuildException {
configureLogging();
validateAttributes();
try {
processMap();
}
catch (Throwable th) {
th = Util.unwindException(th);
String thMessage = th.getLocalizedMessage();
String message = "Error generating classes: ";
message += (!Util.isEmptyString(thMessage)) ? thMessage : th
.getClass()
.getName();
super.log(message);
throw new BuildException(message, th);
}
}
protected void processMap() throws Exception {
DataMap dataMap = loadDataMap();
DataMap additionalDataMaps[] = loadAdditionalDataMaps();
// Create MappingNamespace for maps.
EntityResolver entityResolver = new EntityResolver(Collections.singleton(dataMap));
dataMap.setNamespace(entityResolver);
for (int i = 0; i < additionalDataMaps.length; i++) {
entityResolver.addDataMap(additionalDataMaps[i]);
additionalDataMaps[i].setNamespace(entityResolver);
}
Collection allEntities = dataMap.getObjEntities();
List filteredEntities = new ArrayList(allEntities.size());
// filter client entities
if (generator.isClient()) {
if (dataMap.isClientSupported()) {
Iterator it = allEntities.iterator();
while (it.hasNext()) {
ObjEntity entity = (ObjEntity) it.next();
if (entity.isClientAllowed()) {
filteredEntities.add(entity);
}
}
}
}
else {
filteredEntities.addAll(allEntities);
}
// filter names according to the specified pattern
NamePatternMatcher namePatternMatcher = new NamePatternMatcher(
this,
includeEntitiesPattern,
excludeEntitiesPattern);
namePatternMatcher.filter(filteredEntities);
if (false == ClassGenerator.VERSION_1_1.equals(generator.getVersionString())) {
initializeVppConfig();
generator.setVppConfig(vppConfig);
}
generator.setTimestamp(map.lastModified());
generator.setDataMap(dataMap);
generator.setObjEntities(filteredEntities);
generator.validateAttributes();
generator.execute();
}
/** Loads and returns a DataMap by File. */
protected DataMap loadDataMap(File mapName) throws Exception {
InputSource in = new InputSource(mapName.getCanonicalPath());
return new MapLoader().loadDataMap(in);
}
/** Loads and returns DataMap based on map attribute. */
protected DataMap loadDataMap() throws Exception {
return loadDataMap(map);
}
/** Loads and returns DataMap based on map attribute. */
protected DataMap[] loadAdditionalDataMaps() throws Exception {
if (null == additionalMaps) {
return new DataMap[0];
}
DataMap dataMaps[] = new DataMap[additionalMaps.length];
for (int i = 0; i < additionalMaps.length; i++) {
dataMaps[i] = loadDataMap(additionalMaps[i]);
}
return dataMaps;
}
/**
* Validates atttributes that are not related to internal DefaultClassGenerator.
* Throws BuildException if attributes are invalid.
*/
protected void validateAttributes() throws BuildException {
if (map == null && this.getProject() == null) {
throw new BuildException("either 'map' or 'project' is required.");
}
}
/**
* Sets the map.
*
* @param map The map to set
*/
public void setMap(File map) {
this.map = map;
}
/**
* Sets the additional DataMaps.
*
* @param additionalMapsPath The additional DataMaps to set
*/
public void setAdditionalMaps(Path additionalMapsPath) {
String additionalMapFilenames[] = additionalMapsPath.list();
this.additionalMaps = new File[additionalMapFilenames.length];
for (int i = 0; i < additionalMapFilenames.length; i++) {
additionalMaps[i] = new File(additionalMapFilenames[i]);
}
}
/**
* Sets the destDir.
*/
public void setDestDir(File destDir) {
generator.setDestDir(destDir);
}
/**
* Sets overwrite property.
*/
public void setOverwrite(boolean overwrite) {
generator.setOverwrite(overwrite);
}
/**
* Sets makepairs property.
*/
public void setMakepairs(boolean makepairs) {
generator.setMakePairs(makepairs);
}
/**
* Sets template property.
*/
public void setTemplate(String template) {
generator.setTemplate(template);
}
/**
* Sets supertemplate property.
*/
public void setSupertemplate(String supertemplate) {
generator.setSuperTemplate(supertemplate);
}
/**
* Sets usepkgpath property.
*/
public void setUsepkgpath(boolean usepkgpath) {
generator.setUsePkgPath(usepkgpath);
}
/**
* Sets superpkg property.
*/
public void setSuperpkg(String superpkg) {
generator.setSuperPkg(superpkg);
}
/**
* Sets client property.
*
* @since 1.2
*/
public void setClient(boolean client) {
generator.setClient(client);
}
/**
* Sets version property.
*
* @since 1.2
*/
public void setVersion(String versionString) {
try {
generator.setVersionString(versionString);
}
catch (IllegalStateException e) {
throw new BuildException(e.getMessage(), e);
}
}
/**
* Sets encoding property that allows to generate files using
* non-default encoding.
*
* @since 1.2
*/
public void setEncoding(String encoding) {
generator.setEncoding(encoding);
}
/**
* Sets excludeEntitiesPattern property.
*
* @since 1.2
*/
public void setExcludeEntities(String excludeEntitiesPattern) {
this.excludeEntitiesPattern = excludeEntitiesPattern;
}
/**
* Sets includeEntitiesPattern property.
*
* @since 1.2
*/
public void setIncludeEntities(String includeEntitiesPattern) {
this.includeEntitiesPattern = includeEntitiesPattern;
}
/**
* Sets outputPattern property.
*
* @since 1.2
*/
public void setOutputPattern(String outputPattern) {
generator.setOutputPattern(outputPattern);
}
/**
* Sets outputPattern property.
*
* @since 1.2
*/
public void setMode(String mode) {
generator.setMode(mode);
}
/**
* Provides a VPPConfig objec to configure. (Written with
* createConfig() instead of addConfig() to avoid run-time dependency on VPP).
*
* @since 1.2
*/
public Object createConfig() {
this.vppConfig = new VPPConfig();
return this.vppConfig;
}
/**
* If no VppConfig element specified, use the default one.
*
* @since 1.2
*/
private void initializeVppConfig() {
if (vppConfig == null) {
vppConfig = VPPConfig.getDefaultConfig(getProject());
}
}
}
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