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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.aaf
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * Licensed 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.
* * ============LICENSE_END====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.aaf.inno.env;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.xml.XMLConstants;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlSchema;
import javax.xml.namespace.QName;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import org.onap.aaf.inno.env.impl.EnvFactory;
import org.xml.sax.SAXException;
/**
* DataFactory Constructor will create the Stringifiers and Objectifiers necessary
* by Type and store the Class of the Type for quick creation of Data Objects
* with reused (and thread safe) components
* s
* Native Types are included.
* Those types covered by Env Implementation are covered dynamically.
* Types outside of Env mechanism can be added with "add" function
*
*
* @param <T>
*/
public class BaseDataFactory {
/**
* Generate a Schema Object for use in validation based on FileNames.
*
* WARNING: The java.xml.binding code requires YOU to figure out what order the
* files go in. If there is an import from A in B, then you must list A first.
*
* @param err
* @param filenames
* @return
* @throws APIException
*/
public static Schema genSchema(Store env, String ... filenames) throws APIException {
String schemaDir = env.get(
env.staticSlot(EnvFactory.SCHEMA_DIR),
EnvFactory.DEFAULT_SCHEMA_DIR);
File dir = new File(schemaDir);
if(!dir.exists())throw new APIException("Schema Directory " + schemaDir + " does not exist. You can set this with " + EnvFactory.SCHEMA_DIR + " property");
FileInputStream[] fis = new FileInputStream[filenames.length];
Source[] sources = new Source[filenames.length];
File f;
for(int i=0; i<filenames.length; ++i) {
if(!(f=new File(schemaDir + File.separatorChar + filenames[i])).exists()) {
if(!f.exists()) throw new APIException("Cannot find " + f.getName() + " for schema validation");
}
try {
fis[i]=new FileInputStream(f);
} catch (FileNotFoundException e) {
throw new APIException(e);
}
sources[i]= new StreamSource(fis[i]);
}
try {
//Note: SchemaFactory is not reentrant or very thread safe either... see docs
synchronized(XMLConstants.W3C_XML_SCHEMA_NS_URI) { // SchemaFactory is not reentrant
return SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI)
.newSchema(sources);
}
} catch (SAXException e) {
throw new APIException(e);
} finally {
for(FileInputStream d : fis) {
try {
d.close();
} catch (IOException e) {
// Never mind... we did our best
}
}
}
}
public static QName getQName(Class<?> clss) throws APIException {
// Obtain the Necessary info for QName from Requirement
XmlRootElement xre = clss.getAnnotation(XmlRootElement.class);
if(xre==null)throw new APIException(clss.getName() + " does not have an XmlRootElement annotation");
Package pkg = clss.getPackage();
XmlSchema xs = pkg.getAnnotation(XmlSchema.class);
if(xs==null) throw new APIException(clss.getName() + " package-info does not have an XmlSchema annotation");
return new QName(xs.namespace(),xre.name());
}
/////////////////////////////////////////////
// Native Type Converters
/////////////////////////////////////////////
// /**
// * StringStringifier
// *
// * Support the Native Type String.. just return it back
// *
// *
// */
// public static class StringStringifier extends NullLifeCycle implements Stringifier<String> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, String input) throws APIException {
// return input;
// }
// };
//
// /**
// * StringObjectifier
// *
// * Support the Native Type String.. just return it back
// *
// *
// */
// public static class StringObjectifier extends NullLifeCycle implements Objectifier<String> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public String objectify(Env env, String input) throws APIException {
// return input;
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public String newInstance() throws APIException {
// return "";
// }
// };
//
// /**
// * LongStringifier
// *
// * Support the Native Type Long.. use Long parse functions
// *
// *
// */
// public static class LongStringifier extends NullLifeCycle implements Stringifier<Long> {
// public String stringify(Env env, Long input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * LongObjectifier
// *
// * Support the Native Type Long.. use Long parse functions
// *
// *
// */
// public static class LongObjectifier extends NullLifeCycle implements Objectifier<Long> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Long objectify(Env env, String input) throws APIException {
// try {
// return new Long(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Long\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Long newInstance() throws APIException {
// return 0L;
// }
// }
//
// /**
// * IntegerStringifier
// *
// * Support the Native Integer.. use Integer parse functions
// *
// *
// */
// public static class IntegerStringifier extends NullLifeCycle implements Stringifier<Integer> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, Integer input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * IntegerObjectifier
// *
// * Support the Native Integer.. use Integer parse functions
// *
// *
// */
// public static class IntegerObjectifier extends NullLifeCycle implements Objectifier<Integer> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Integer objectify(Env env, String input) throws APIException {
// try {
// return new Integer(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Integer\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Integer newInstance() throws APIException {
// return 0;
// }
// }
//
// /**
// * ShortStringifier
// *
// * Support the Native Short.. use Short parse functions
// *
// *
// */
// public static class ShortStringifier extends NullLifeCycle implements Stringifier<Short> {
// public String stringify(Env env, Short input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * ShortObjectifier
// *
// * Support the Native Short.. use Short parse functions
// *
// *
// */
// public static class ShortObjectifier extends NullLifeCycle implements Objectifier<Short> {
// public Short objectify(Env env, String input) throws APIException {
// try {
// return new Short(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Short\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// public Short newInstance() throws APIException {
// return 0;
// }
// }
//
// /**
// * ByteStringifier
// *
// * Support the Native Byte.. use Byte parse functions
// *
// *
// */
// public static class ByteStringifier extends NullLifeCycle implements Stringifier<Byte> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, Byte input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * ByteObjectifier
// *
// * Support the Native Byte.. use Byte parse functions
// *
// *
// */
// public static class ByteObjectifier extends NullLifeCycle implements Objectifier<Byte> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Byte objectify(Env env, String input) throws APIException {
// try {
// return new Byte(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Byte\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Byte newInstance() throws APIException {
// return 0;
// }
// }
//
// /**
// * CharacterStringifier
// *
// * Support the Native Character.. use Character parse functions
// *
// *
// */
// public static class CharacterStringifier extends NullLifeCycle implements Stringifier<Character> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, Character input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * CharacterObjectifier
// *
// * Support the Native Character.. use Character parse functions
// *
// *
// */
// public static class CharacterObjectifier extends NullLifeCycle implements Objectifier<Character> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Character objectify(Env env, String input) throws APIException {
// int length = input.length();
// if(length<1 || length>1) {
// throw new APIException("String [" + input + "] does not represent a single Character");
// }
// return input.charAt(0);
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Character newInstance() throws APIException {
// return 0;
// }
// }
//
// /**
// * FloatStringifier
// *
// * Support the Native Float.. use Float parse functions
// *
// *
// */
// public static class FloatStringifier extends NullLifeCycle implements Stringifier<Float> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, Float input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * FloatObjectifier
// *
// * Support the Native Float.. use Float parse functions
// *
// *
// */
// public static class FloatObjectifier extends NullLifeCycle implements Objectifier<Float> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Float objectify(Env env, String input) throws APIException {
// try {
// return new Float(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Float\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Float newInstance() throws APIException {
// return 0.0f;
// }
// }
//
// /**
// * DoubleStringifier
// *
// * Support the Native Double.. use Double parse functions
// *
// */
// public static class DoubleStringifier extends NullLifeCycle implements Stringifier<Double> {
// /* (non-Javadoc)
// * @see com.att.env.Stringifier#stringify(com.att.env.Env, java.lang.Object)
// */
// public String stringify(Env env, Double input) throws APIException {
// return input.toString();
// }
// }
//
// /**
// * DoubleObjectifier
// *
// * Support the Native Double.. use Double parse functions
// *
// *
// */
// public static class DoubleObjectifier extends NullLifeCycle implements Objectifier<Double> {
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#objectify(com.att.env.Env, java.lang.String)
// */
// public Double objectify(Env env, String input) throws APIException {
// try {
// return new Double(input);
// } catch (Exception e) {
// APIException ae = new APIException("Cannot create a \"Double\" from [" + input + ']');
// ae.initCause(e);
// throw ae;
// }
// }
//
// /* (non-Javadoc)
// * @see com.att.env.Objectifier#newObject()
// */
// public Double newInstance() throws APIException {
// return 0.0;
// }
// }
}
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